background image

73 

Federal Aviation Administration, DOT 

Pt. 121 

of Aerospace Medicine, Drug Abate-
ment Division: 

(i) Company name. 
(ii) Telephone number. 
(iii) Address where your drug and al-

cohol testing program records are kept. 

(iv) Type of safety-sensitive func-

tions you or your employees perform 
(such as flight instruction duties, air-
craft dispatcher duties, maintenance or 
preventive maintenance duties, ground 
security coordinator duties, aviation 
screening duties, air traffic control du-
ties). 

(v) Whether you have 50 or more cov-

ered employees, or 49 or fewer covered 
employees. 

(vi) A signed statement indicating 

that: your company will comply with 
this part and 49 CFR part 40; and you 
intend to provide safety-sensitive func-
tions by contract (including sub-
contract at any tier) to a part 119 cer-
tificate holder with authority to oper-
ate under part 121 or part 135 of this 
chapter, an operator as defined in 
§ 91.147 of this chapter, or an air traffic 
control facility not operated by the 
FAA or by or under contract to the 
U.S. military. 

(2) Send this information to the Fed-

eral Aviation Administration, Office of 
Aerospace Medicine, Drug Abatement 
Division (AAM–800), 800 Independence 
Avenue SW., Washington, DC 20591. 

(3) This Drug and Alcohol Testing 

Program Registration will satisfy the 
registration requirements for both 
your drug testing program under sub-
part E of this part and your alcohol 
testing program under this subpart. 

(4) Update the registration informa-

tion as changes occur. Send the up-
dates to the address specified in para-
graph (f)(2) of this section. 

[Doc. No. FAA–2008–0937, 74 FR 22653, May 14, 
2009; Amdt. 120–0A, 75 FR 3154, Jan. 20, 2010, 
as amended by Amdt. 120–1, 78 FR 42005, July 
15, 2013] 

§ 120.227 Employees located outside 

the U.S. 

(a) No covered employee shall be 

tested for alcohol misuse while located 
outside the territory of the United 
States. 

(1) Each covered employee who is as-

signed to perform safety-sensitive 
functions solely outside the territory 

of the United States shall be removed 
from the random testing pool upon the 
inception of such assignment. 

(2) Each covered employee who is re-

moved from the random testing pool 
under this paragraph shall be returned 
to the random testing pool when the 
employee resumes the performance of 
safety-sensitive functions wholly or 
partially within the territory of the 
United States. 

(b) The provisions of this subpart 

shall not apply to any person who per-
forms a safety-sensitive function by 
contract for an employer outside the 
territory of the United States. 

PART 121—OPERATING REQUIRE-

MENTS: DOMESTIC, FLAG, AND 
SUPPLEMENTAL OPERATIONS 

S

PECIAL

F

EDERAL

A

VIATION

R

EGULATION

N

O

50–2 [N

OTE

S

PECIAL

F

EDERAL

A

VIATION

R

EGULATION

N

O

71 [N

OTE

S

PECIAL

F

EDERAL

A

VIATION

R

EGULATION

N

O

97 [N

OTE

Subpart A—General 

Sec. 
121.1

Applicability. 

121.2

Compliance schedule for operators 

that transition to part 121; certain new 
entrant operators. 

121.4

Applicability of rules to unauthorized 

operators. 

121.7

Definitions. 

121.9

Fraud and falsification. 

121.11

Rules applicable to operations in a 

foreign country. 

121.15

Carriage of narcotic drugs, mari-

huana, and depressant or stimulant drugs 
or substances. 

Subpart B—Certification Rules for Domestic 

and Flag Air Carriers 

[

Reserved

Subpart C—Certification Rules for Supple-

mental Air Carriers and Commercial 
Operators 

[

Reserved

Subpart D—Rules Governing All Certificate 

Holders Under This Part 

[

Reserved

Subpart E—Approval of Routes: Domestic 

and Flag Operations 

121.91

Applicability. 

121.93

Route requirements: General. 

121.95

Route width. 

121.97

Airports: Required data. 

background image

74 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121 

121.99

Communications facilities—domestic 

and flag operations. 

121.101

Weather reporting facilities. 

121.103

En route navigation facilities. 

121.105

Servicing and maintenance facili-

ties. 

121.106

ETOPS Alternate Airport: Rescue 

and fire fighting service. 

121.107

Dispatch centers. 

Subpart F—Approval of Areas and Routes 

for Supplemental Operations 

121.111

Applicability. 

121.113

Area and route requirements: Gen-

eral. 

121.115

Route width. 

121.117

Airports: Required data. 

121.119

Weather reporting facilities. 

121.121

En route navigation facilities. 

121.122

Communications facilities—supple-

mental operations. 

121.123

Servicing maintenance facilities. 

121.125

Flight following system. 

121.127

Flight following system; require-

ments. 

Subpart G—Manual Requirements 

121.131

Applicability. 

121.133

Preparation. 

121.135

Manual contents. 

121.137

Distribution and availability. 

121.139

Manual accessibility: Supplemental 

operations. 

121.141

Airplane flight manual. 

Subpart H—Aircraft Requirements 

121.151

Applicability. 

121.153

Aircraft requirements: General. 

121.155

[Reserved] 

121.157

Aircraft certification and equipment 

requirements. 

121.159

Single-engine airplanes prohibited. 

121.161

Airplane limitations: Type of route. 

121.162

ETOPS Type Design Approval Basis. 

121.163

Aircraft proving tests. 

Subpart I—Airplane Performance 

Operating Limitations 

121.171

Applicability. 

121.173

General. 

121.175

Airplanes: Reciprocating engine- 

powered: Weight limitations. 

121.177

Airplanes: Reciprocating engine- 

powered: Takeoff limitations. 

121.179

Airplanes: Reciprocating engine- 

powered: En route limitations: All en-
gines operating. 

121.181

Airplanes: Reciprocating engine- 

powered: En route limitations: One en-
gine inoperative. 

121.183

Part 25 airplanes with four or more 

engines: Reciprocating engine powered: 
En route limitations: Two engines inop-
erative. 

121.185

Airplanes: Reciprocating engine- 

powered: Landing limitations: Destina-
tion airport. 

121.187

Airplanes: Reciprocating engine- 

powered: Landing limitations: Alternate 
airport. 

121.189

Airplanes: Turbine engine powered: 

Takeoff limitations. 

121.191

Airplanes: Turbine engine powered: 

En route limitations: One engine inoper-
ative. 

121.193

Airplanes: Turbine engine powered: 

En route limitations: Two engines inop-
erative. 

121.195

Airplanes: Turbine engine powered: 

Landing limitations: Destination air-
ports. 

121.197

Airplanes: Turbine engine powered: 

Landing limitations: Alternate airports. 

121.198

Cargo service airplanes: Increased 

zero fuel and landing weights. 

121.199

Nontransport category airplanes: 

Takeoff limitations. 

121.201

Nontransport category airplanes: En 

route limitations: One engine inoper-
ative. 

121.203

Nontransport category airplanes: 

Landing limitations: Destination airport. 

121.205

Nontransport category airplanes: 

Landing limitations: Alternate airport. 

121.207

Provisionally certificated airplanes: 

Operating limitations. 

Subpart J—Special Airworthiness 

Requirements 

121.211

Applicability. 

121.213

[Reserved] 

121.215

Cabin interiors. 

121.217

Internal doors. 

121.219

Ventilation. 

121.221

Fire precautions. 

121.223

Proof of compliance with § 121.221. 

121.225

Propeller deicing fluid. 

121.227

Pressure cross-feed arrangements. 

121.229

Location of fuel tanks. 

121.231

Fuel system lines and fittings. 

121.233

Fuel lines and fittings in designated 

fire zones. 

121.235

Fuel valves. 

121.237

Oil lines and fittings in designated 

fire zones. 

121.239

Oil valves. 

121.241

Oil system drains. 

121.243

Engine breather lines. 

121.245

Fire walls. 

121.247

Fire-wall construction. 

121.249

Cowling. 

121.251

Engine accessory section diaphragm. 

121.253

Powerplant fire protection. 

121.255

Flammable fluids. 

121.257

Shutoff means. 

121.259

Lines and fittings. 

121.261

Vent and drain lines. 

121.263

Fire-extinguishing systems. 

121.265

Fire-extinguishing agents. 

background image

75 

Federal Aviation Administration, DOT 

Pt. 121 

121.267

Extinguishing agent container pres-

sure relief. 

121.269

Extinguishing agent container com-

partment temperature. 

121.271

Fire-extinguishing system mate-

rials. 

121.273

Fire-detector systems. 

121.275

Fire detectors. 

121.277

Protection of other airplane compo-

nents against fire. 

121.279

Control of engine rotation. 

121.281

Fuel system independence. 

121.283

Induction system ice prevention. 

121.285

Carriage of cargo in passenger com-

partments. 

121.287

Carriage of cargo in cargo compart-

ments. 

121.289

Landing gear: Aural warning device. 

121.291

Demonstration of emergency evacu-

ation procedures. 

121.293

Special airworthiness requirements 

for nontransport category airplanes type 
certificated after December 31, 1964. 

121.295

Location for a suspect device. 

Subpart K—Instrument and Equipment 

Requirements 

121.301

Applicability. 

121.303

Airplane instruments and equip-

ment. 

121.305

Flight and navigational equipment. 

121.306

Portable electronic devices. 

121.307

Engine instruments. 

121.308

Lavatory fire protection. 

121.309

Emergency equipment. 

121.310

Additional emergency equipment. 

121.311

Seats, safety belts, and shoulder har-

nesses. 

121.312

Materials for compartment inte-

riors. 

121.313

Miscellaneous equipment. 

121.314

Cargo and baggage compartments. 

121.315

Cockpit check procedure. 

121.316

Fuel tanks. 

121.317

Passenger information require-

ments, smoking prohibitions, and addi-
tional seat belt requirements. 

121.318

Public address system. 

121.319

Crewmember interphone system. 

121.321

Operations in icing. 

121.323

Instruments and equipment for oper-

ations at night. 

121.325

Instruments and equipment for oper-

ations under IFR or over-the-top. 

121.327

Supplemental oxygen: Reciprocating 

engine powered airplanes. 

121.329

Supplemental oxygen for suste-

nance: Turbine engine powered airplanes. 

121.331

Supplemental oxygen requirements 

for pressurized cabin airplanes: Recipro-
cating engine powered airplanes. 

121.333

Supplemental oxygen for emergency 

descent and for first aid; turbine engine 
powered airplanes with pressured cabins. 

121.335

Equipment standards. 

121.337

Protective breathing equipment. 

121.339

Emergency equipment for extended 

over-water operations. 

121.340

Emergency flotation means. 

121.341

Equipment for operations in icing 

conditions. 

121.342

Pitot heat indication systems. 

121.343

Flight data recorders. 

121.344

Digital flight data recorders for 

transport category airplanes. 

121.344a

Digital flight data recorders for 10– 

19 seat airplanes. 

121.345

Radio equipment. 

121.346

Flight data recorders: filtered data. 

121.347

Communication and navigation 

equipment for operations under VFR 
over routes navigated by pilotage. 

121.349

Communication and navigation 

equipment for operations under VFR 
over routes not navigated by pilotage or 
for operations under IFR or over the top. 

121.351

Communication and navigation 

equipment for extended over-water oper-
ations and for certain other operations. 

121.353

Emergency equipment for operations 

over uninhabited terrain areas: Flag, 
supplemental, and certain domestic oper-
ators. 

121.354

Terrain awareness and warning sys-

tem. 

121.355

Equipment for operations on which 

specialized means of navigation are used. 

121.356

Collision Avoidance System. 

121.357

Airborne weather radar equipment 

requirements. 

121.358

Low-altitude windshear system 

equipment requirements. 

121.359

Cockpit voice recorders. 

121.360

[Reserved] 

Subpart L—Maintenance, Preventive 

Maintenance, and Alterations 

121.361

Applicability. 

121.363

Responsibility for airworthiness. 

121.365

Maintenance, preventive mainte-

nance, and alteration organization. 

121.367

Maintenance, preventive mainte-

nance, and alterations programs. 

121.368

Contract maintenance. 

121.369

Manual requirements. 

121.370–121.370a

[Reserved] 

121.371

Required inspection personnel. 

121.373

Continuing analysis and surveil-

lance. 

121.374

Continuous airworthiness mainte-

nance program (CAMP) for two-engine 
ETOPS. 

121.375

Maintenance and preventive mainte-

nance training program. 

121.377

Maintenance and preventive mainte-

nance personnel duty time limitations. 

121.378

Certificate requirements. 

121.379

Authority to perform and approve 

maintenance, preventive maintenance, 
and alterations. 

121.380

Maintenance recording require-

ments. 

background image

76 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121 

121.380a

Transfer of maintenance records. 

Subpart M—Airman and Crewmember 

Requirements 

121.381

Applicability. 

121.383

Airman: Limitations on use of serv-

ices. 

121.385

Composition of flight crew. 

121.387

Flight engineer. 

121.389

Flight navigator and specialized 

navigation equipment. 

121.391

Flight attendants. 

121.392

Personnel identified as flight attend-

ants. 

121.393

Crewmember requirements at stops 

where passengers remain on board. 

121.394

Flight attendant requirements dur-

ing passenger boarding and deplaning. 

121.395

Aircraft dispatcher: Domestic and 

flag operations. 

121.397

Emergency and emergency evacu-

ation duties. 

Subpart N—Training Program 

121.400

Applicability and terms used. 

121.401

Training program: General. 

121.402

Training program: Special rules. 

121.403

Training program: Curriculum. 

121.404

Compliance dates: Crew and dis-

patcher resource management training. 

121.405

Training program and revision: Ini-

tial and final approval. 

121.406

Credit for previous CRM/DRM train-

ing. 

121.407

Training program: Approval of flight 

simulation training devices. 

121.408

Training eqipment other than flight 

simulation training devices. 

121.409

Training courses using flight simula-

tion training devices. 

121.410

Airline transport pilot certification 

training program. 

121.411

Qualifications: Check airmen (air-

plane) and check airmen (simulator). 

121.412

Qualifications: Flight instructors 

(airplane) and flight instructors (simu-
lator). 

121.413

Initial, transition and recurrent 

training and checking requirements: 
Check airmen (airplane), check airmen 
(simulator). 

121.414

Initial, transition and recurrent 

training and checking requirements: 
flight instructors (airplane), flight in-
structors (simulator). 

121.415

Crewmember and dispatcher training 

program requirements. 

121.417

Crewmember emergency training. 

121.418

Differences training and related air-

craft differences training. 

121.419

Pilots and flight engineers: Initial, 

transition, conversion and upgrade 
ground training. 

121.420

Pilots: Upgrade ground training. 

121.421

Flight attendants: Initial and transi-

tion ground training. 

121.422

Aircraft dispatchers: Initial and 

transition ground training. 

121.423

Pilots: Extended Envelope Training. 

121.424

Pilots: Initial, transition, conver-

sion, and upgrade flight training. 

121.425

Flight engineers: Initial and transi-

tion flight training. 

121.426

Pilots: Upgrade flight training. 

121.427

Recurrent training. 

121.429

Pilots in command: Leadership and 

command and mentoring training. 

Subpart O—Crewmember Qualifications 

121.431

Applicability. 

121.432

General. 

121.433

Training required. 

121.434

Operating experience, operating cy-

cles, and consolidation of knowledge and 
skills. 

121.435

Pilots: Operations Familiarization. 

121.436

Pilot Qualification: Certificates and 

experience requirements. 

121.438

Pilot operating limitations and pair-

ing requirements. 

121.439

Pilot qualification: Recent experi-

ence. 

121.440

Line checks. 

121.441

Proficiency checks. 

121.443

Pilot in command qualification: 

Route and airports. 

121.445

Pilot in command airport qualifica-

tion: Special areas and airports. 

121.447

[Reserved] 

121.453

Flight engineer qualifications. 

121.455–121.459

[Reserved] 

Subpart P—Aircraft Dispatcher 

Qualifications and Duty Time 

Limitations: 

D

OMESTIC AND

F

LAG

O

PERATIONS

F

LIGHT

A

TTENDANT

D

UTY

P

ERIOD

L

IMITA

-

TIONS AND

R

EST

R

EQUIREMENTS

: D

OMESTIC

F

LAG

AND

S

UPPLEMENTAL

O

PERATIONS

 

121.461

Applicability. 

121.463

Aircraft dispatcher qualifications. 

121.465

Aircraft dispatcher duty time limi-

tations: Domestic and flag operations. 

121.467

Flight attendant duty period limita-

tions and rest requirements: Domestic, 
flag, and supplemental operations. 

Subpart Q—Flight Time Limitations and Rest 

Requirements: Domestic Operations 

121.470

Applicability. 

121.471

Flight time limitations and rest re-

quirements: All flight crewmembers. 

121.473

Fatigue risk management system. 

Subpart R—Flight Time Limitations: Flag 

Operations 

121.480

Applicability. 

background image

77 

Federal Aviation Administration, DOT 

Pt. 121 

121.481

Flight time limitations: One or two 

pilot crews. 

121.483

Flight time limitations: Two pilots 

and one additional flight crewmember. 

121.485

Flight time limitations: Three or 

more pilots and an additional flight 
crewmember. 

121.487

Flight time limitations: Pilots not 

regularly assigned. 

121.489

Flight time limitations: Other com-

mercial flying. 

121.491

Flight time limitations: Deadhead 

transportation. 

121.493

Flight time limitations: Flight engi-

neers and flight navigators. 

121.495

Fatigue risk management system. 

Subpart S—Flight Time Limitations: 

Supplemental Operations 

121.500

Applicability. 

121.503

Flight time limitations: Pilots: air-

planes. 

121.505

Flight time limitations: Two pilot 

crews: airplanes. 

121.507

Flight time limitations: Three pilot 

crews: airplanes. 

121.509

Flight time limitations: Four pilot 

crews: airplanes. 

121.511

Flight time limitations: Flight engi-

neers: airplanes. 

121.513

Flight time limitations: Overseas 

and international operations: airplanes. 

121.515

Flight time limitations: All airmen: 

airplanes. 

121.517

Flight time limitations: Other com-

mercial flying: airplanes. 

121.519

Flight time limitations: Deadhead 

transportation: airplanes. 

121.521

Flight time limitations: Crew of two 

pilots and one additional airman as re-
quired. 

121.523

Flight time limitations: Crew of 

three or more pilots and additional air-
men as required. 

121.525

Flight time limitations: Pilots serv-

ing in more than one kind of flight crew. 

121.527

Fatigue risk management system. 

Subpart T—Flight Operations 

121.531

Applicability. 

121.533

Responsibility for operational con-

trol: Domestic operations. 

121.535

Responsibility for operational con-

trol: Flag operations. 

121.537

Responsibility for operational con-

trol: Supplemental operations. 

121.538

Aircraft security. 

121.539

Operations notices. 

121.541

Operations schedules: Domestic and 

flag operations. 

121.542

Flight crewmember duties. 

121.543

Flight crewmembers at controls. 

121.544

Pilot monitoring. 

121.545

Manipulation of controls. 

121.547

Admission to flight deck. 

121.548

Aviation safety inspector’s creden-

tials: Admission to pilot’s compartment. 

121.548a

DOD Commercial Air Carrier Eval-

uator’s Credential. 

121.549

Flying equipment. 

121.550

Secret Service Agents: Admission to 

flight deck. 

121.551

Restriction or suspension of oper-

ation: Domestic and flag operations. 

121.553

Restriction or suspension of oper-

ation: Supplemental operations. 

121.555

Compliance with approved routes 

and limitations: Domestic and flag oper-
ations. 

121.557

Emergencies: Domestic and flag op-

erations. 

121.559

Emergencies: Supplemental oper-

ations. 

121.561

Reporting potentially hazardous me-

teorological conditions and irregularities 
of ground facilities or navigation aids. 

121.563

Reporting mechanical irregularities. 

121.565

Engine inoperative: Landing; report-

ing. 

121.567

Instrument approach procedures and 

IFR landing minimums. 

121.569

Equipment interchange: Domestic 

and flag operations. 

121.570

Airplane evacuation capability. 

121.571

Briefing passengers before takeoff. 

121.573

Briefing passengers: Extended 

overwater operations. 

121.574

Oxygen and portable oxygen con-

centrators for medical use by passengers. 

121.575

Alcoholic beverages. 

121.576

Retention of items of mass in pas-

senger and crew compartments. 

121.577

Stowage of food, beverage, and pas-

senger service equipment during airplane 
movement on the surface, takeoff, and 
landing. 

121.578

Cabin ozone concentration. 

121.579

Minimum altitudes for use of auto- 

pilot. 

121.580

Prohibition on interference with 

crewmembers. 

121.581

Observer’s seat: En route inspec-

tions. 

121.582

Means to discreetly notify a 

flightcrew. 

121.583

Carriage of persons without compli-

ance with the passenger-carrying re-
quirements of this part. 

121.584

Requirement to view the area out-

side the flightdeck door. 

121.585

Exit seating. 

121.586

Authority to refuse transportation. 

121.587

Closing and locking of flight crew 

compartment door. 

121.589

Carry-on baggage. 

121.590

Use of certificated land airports in 

the United States. 

Subpart U—Dispatching and Flight Release 

Rules 

121.591

Applicability. 

background image

78 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121 

121.593

Dispatching authority: Domestic op-

erations. 

121.595

Dispatching authority: Flag oper-

ations. 

121.597

Flight release authority: Supple-

mental operations. 

121.599

Familiarity with weather condi-

tions. 

121.601

Aircraft dispatcher information to 

pilot in command: Domestic and flag op-
erations. 

121.603

Facilities and services: Supple-

mental operations. 

121.605

Airplane equipment. 

121.607

Communication and navigation fa-

cilities: Domestic and flag operations. 

121.609

Communication and navigation fa-

cilities: Supplemental operations. 

121.611

Dispatch or flight release under 

VFR. 

121.613

Dispatch or flight release under IFR 

or over the top. 

121.615

Dispatch or flight release over 

water: Flag and supplemental operations. 

121.617

Alternate airport for departure. 

121.619

Alternate airport for destination: 

IFR or over-the-top: Domestic oper-
ations. 

121.621

Alternate airport for destination: 

Flag operations. 

121.623

Alternate airport for destination: 

IFR or over-the-top: Supplemental oper-
ations. 

121.624

ETOPS Alternate Airports.. 

121.625

Alternate Airport weather minima. 

121.627

Continuing flight in unsafe condi-

tions. 

121.628

Inoperable instruments and equip-

ment. 

121.629

Operation in icing conditions. 

121.631

Original dispatch or flight release, 

redispatch or amendment of dispatch or 
flight release. 

121.633

Considering time-limited systems in 

planning ETOPS alternates. 

121.635

Dispatch to and from refueling or 

provisional airports: Domestic and flag 
operations. 

121.637

Takeoffs from unlisted and alternate 

airports: Domestic and flag operations. 

121.639

Fuel supply: All domestic oper-

ations. 

121.641

Fuel supply: Nonturbine and turbo- 

propeller-powered airplanes: Flag oper-
ations. 

121.643

Fuel supply: Nonturbine and turbo- 

propeller-powered airplanes: Supple-
mental operations. 

121.645

Fuel supply: Turbine-engine powered 

airplanes, other than turbo propeller: 
Flag and supplemental operations. 

121.646

En-route fuel supply: flag and sup-

plemental operations. 

121.647

Factors for computing fuel required. 

121.649

Takeoff and landing weather mini-

mums: VFR: Domestic operations. 

121.651

Takeoff and landing weather mini-

mums: IFR: All certificate holders. 

121.652

Landing weather minimums: IFR: 

All certificate holders. 

121.653

[Reserved] 

121.655

Applicability of reported weather 

minimums. 

121.657

Flight altitude rules. 

121.659

Initial approach altitude: Domestic 

and supplemental operations. 

121.661

Initial approach altitude: Flag oper-

ations. 

121.663

Responsibility for dispatch release: 

Domestic and flag operations. 

121.665

Load manifest. 

121.667

Flight plan: VFR and IFR: Supple-

mental operations. 

Subpart V—Records and Reports 

121.681

Applicability. 

121.683

Crewmember and dispatcher record. 

121.685

Aircraft record: Domestic and flag 

operations. 

121.687

Dispatch release: Flag and domestic 

operations. 

121.689

Flight release form: Supplemental 

operations. 

121.691

[Reserved] 

121.693

Load manifest: All certificate hold-

ers. 

121.695

Disposition of load manifest, dis-

patch release, and flight plans: Domestic 
and flag operations. 

121.697

Disposition of load manifest, flight 

release, and flight plans: Supplemental 
operations. 

121.698–121.699

[Reserved] 

121.701

Maintenance log: Aircraft. 

121.703

Service difficulty reports. 

121.705

Mechanical interruption summary 

report. 

121.707

Alteration and repair reports. 

121.709

Airworthiness release or aircraft log 

entry. 

121.711

Communication records: Domestic 

and flag operations. 

121.713

Retention of contracts and amend-

ments: Commercial operators who con-
duct intrastate operations for compensa-
tion or hire. 

Subpart W—Crewmember Certificate: 

International 

121.721

Applicability. 

121.723

Surrender of international crew-

member certificate. 

Subpart X—Emergency Medical 

Equipment and Training 

121.801

Applicability. 

121.803

Emergency medical equipment. 

121.805

Crewmember training for in-flight 

medical events. 

background image

79 

Federal Aviation Administration, DOT 

Pt. 121, SFAR No. 97, Nt. 

Subpart Y—Advanced Qualification 

Program 

121.901

Purpose and eligibility. 

121.903

General requirements for Advanced 

Qualification Programs. 

121.905

Confidential commercial informa-

tion 

121.907

Definitions. 

121.909

Approval of Advanced Qualification 

Program. 

121.911

Indoctrination curriculum. 

121.913

Qualification curriculum. 

121.915

Continuing qualification curriculum. 

121.917

Other requirements. 

121.919

Certification. 

121.921

Training devices and simulators. 

121.923

Approval of training, qualification, 

or evaluation by a person who provides 
training by arrangement. 

121.925

Recordkeeping requirements. 

Subpart Z—Hazardous Materials Training 

Program 

121.1001

Applicability and definitions. 

121.1003

Hazardous materials training: Gen-

eral. 

121.1005

Hazardous materials training re-

quired. 

121.1007

Hazardous materials training 

records. 

Subpart AA—Continued Airworthiness and 

Safety Improvements 

121.1101

Purpose and definition. 

121.1103

[Reserved] 

121.1105

Aging airplane inspections and 

records reviews. 

121.1107

Repairs assessment for pressurized 

fuselages. 

121.1109

Supplemental inspections. 

121.1111

Electrical wiring interconnection 

systems (EWIS) maintenance program. 

121.1113

Fuel tank system maintenance pro-

gram. 

121.1115

Limit of validity. 

121.1117

Flammability reduction means. 

121.1119

Fuel tank vent explosion protec-

tion. 

Subpart BB 

[

Reserved

121.1200–121.1399

[Reserved] 

Subpart CC 

[

Reserved

121.1400–121.1499

[Reserved] 

Subpart DD—Special Federal Aviation 

Regulations 

121.1500

SFAR No. 111—Lavatory Oxygen 

Systems. 

A

PPENDIX

TO

P

ART

121—F

IRST

-A

ID

K

ITS

 

AND

E

MERGENCY

M

EDICAL

K

ITS

 

A

PPENDIX

TO

P

ART

121—A

IRCRAFT

F

LIGHT

 

R

ECORDER

S

PECIFICATIONS

 

A

PPENDIX

TO

P

ART

121—C–46 N

ON

-

TRANSPORT

C

ATEGORY

A

IRPLANES

 

A

PPENDIX

TO

P

ART

121—C

RITERIA FOR

D

EM

-

ONSTRATION OF

E

MERGENCY

E

VACUATION

 

P

ROCEDURES

U

NDER

§ 121.291 

A

PPENDIX

TO

P

ART

121—F

LIGHT

T

RAINING

 

R

EQUIREMENTS

 

A

PPENDIX

TO

P

ART

121—P

ROFICIENCY

C

HECK

 

R

EQUIREMENTS

 

A

PPENDIX

TO

P

ART

121—D

OPPLER

R

ADAR

 

AND

I

NERTIAL

N

AVIGATION

S

YSTEM

(INS): 

R

EQUEST

FOR

E

VALUATION

; E

QUIPMENT

 

AND

E

QUIPMENT

I

NSTALLATION

; T

RAINING

 

P

ROGRAM

; E

QUIPMENT

A

CCURACY AND

R

E

-

LIABILITY

; E

VALUATION

P

ROGRAM

 

A

PPENDIX

TO

P

ART

121—A

DVANCED

S

IMULA

-

TION

 

A

PPENDIXES

I–J 

TO

P

ART

121 [R

ESERVED

A

PPENDIX

TO

P

ART

121—P

ERFORMANCE

R

E

-

QUIREMENTS

FOR

C

ERTAIN

T

URBO

-

PROPELLER

P

OWERED

A

IRPLANES

 

A

PPENDIX

TO

P

ART

121—T

YPE

C

ERTIFI

-

CATION

R

EGULATIONS

M

ADE

P

REVIOUSLY

 

E

FFECTIVE

 

A

PPENDIX

TO

P

ART

121—A

IRPLANE

F

LIGHT

 

R

ECORDER

S

PECIFICATIONS

 

A

PPENDIX

TO

P

ART

121 [R

ESERVED

A

PPENDIX

TO

P

ART

121—H

AZARDOUS

M

ATE

-

RIALS

T

RAINING

R

EQUIREMENTS

F

OR

C

ER

-

TIFICATE

H

OLDERS

 

A

PPENDIX

TO

P

ART

121—R

EQUIREMENTS FOR

 

ETOPS 

AND

P

OLAR

O

PERATIONS

 

A

UTHORITY

: 49 U.S.C. 106(f), 106(g), 40103, 

40113, 40119, 41706, 42301 preceding note added 
by Pub. L. 112–95, sec. 412, 126 Stat. 89, 44101, 
44701–44702, 44705, 44709–44711, 44713, 44716– 
44717, 44722, 44729, 44732; 46105; Pub. L. 111–216, 
124 Stat. 2348 (49 U.S.C. 44701 note); Pub. L. 
112–95, 126 Stat. 62 (49 U.S.C. 44732 note); Pub. 
L. 115–254, 132 Stat. 3186 (49 U.S.C. 44701 note). 

S

PECIAL

F

EDERAL

A

VIATION

R

EGULATION

 

N

O

. 50–2 

E

DITORIAL

N

OTE

: For the text of SFAR No. 

50–2, see part 91 of this chapter. 

S

PECIAL

F

EDERAL

A

VIATION

R

EGULATION

 

N

O

. 71 

E

DITORIAL

N

OTE

: For the text of SFAR No. 

71, see part 91 of this chapter. 

S

PECIAL

F

EDERAL

A

VIATION

R

EGULATION

 

N

O

. 97 

E

DITORIAL

N

OTE

: For the text of SFAR No. 

97, see part 91 of this chapter. 

background image

80 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.1 

Subpart A—General 

§ 121.1 Applicability. 

This part prescribes rules gov-

erning— 

(a) The domestic, flag, and supple-

mental operations of each person who 
holds or is required to hold an Air Car-
rier Certificate or Operating Certifi-
cate under part 119 of this chapter. 

(b) Each person employed or used by 

a certificate holder conducting oper-
ations under this part including main-
tenance, preventive maintenance, and 
alteration of aircraft. 

(c) Each person who applies for provi-

sional approval of an Advanced Quali-
fication Program curriculum, cur-
riculum segment, or portion of a cur-
riculum segment under subpart Y of 
this part, and each person employed or 
used by an air carrier or commercial 
operator under this part to perform 
training, qualification, or evaluation 
functions under an Advanced Qualifica-
tion Program under subpart Y of this 
part. 

(d) Nonstop Commercial Air Tours 

conducted for compensation or hire in 
accordance with § 119.1(e)(2) of this 
chapter must comply with drug and al-
cohol requirements in §§ 121.455, 121.457, 
121.458 and 121.459, and with the provi-
sions of part 136, subpart A of this 
chapter by September 11, 2007. An oper-
ator who does not hold an air carrier 
certificate or an operating certificate 
is permitted to use a person who is oth-
erwise authorized to perform aircraft 
maintenance or preventive mainte-
nance duties and who is not subject to 
anti-drug and alcohol misuse preven-
tion programs to perform— 

(1) Aircraft maintenance or preven-

tive maintenance on the operator’s air-
craft if the operator would otherwise 
be required to transport the aircraft 
more than 50 nautical miles further 
than the repair point closest to the op-
erator’s principal base of operations to 
obtain these services; or 

(2) Emergency repairs on the opera-

tor’s aircraft if the aircraft cannot be 
safely operated to a location where an 
employee subject to FAA-approved pro-
grams can perform the repairs. 

(e) Each person who is on board an 

aircraft being operated under this part. 

(f) Each person who is an applicant 

for an Air Carrier Certificate or an Op-
erating Certificate under part 119 of 
this chapter, when conducting proving 
tests. 

(g) This part also establishes require-

ments for operators to take actions to 
support the continued airworthiness of 
each aircraft. 

[Doc. No. 28154, 60 FR 65925, Dec. 20, 1995, as 
amended by Amdt. 121–328, 72 FR 6912, Feb. 
13, 2007; Amdt. 121–336, 72 FR 63411, Nov. 8, 
2007; Docket No. FAA–2022–1563; Amdt. No. 
121–390, 88 FR 48090, July 26, 2023] 

§ 121.2 Compliance schedule for opera-

tors that transition to part 121; cer-

tain new entrant operators. 

(a) 

Applicability. 

This section applies 

to the following: 

(1) Each certificate holder that was 

issued an air carrier or operating cer-
tificate and operations specifications 
under the requirements of part 135 of 
this chapter or under SFAR No. 38–2 of 
14 CFR part 121 before January 19, 1996, 
and that conducts scheduled passenger- 
carrying operations with: 

(i) Nontransport category turbo-

propeller powered airplanes type cer-
tificated after December 31, 1964, that 
have a passenger seat configuration of 
10–19 seats; 

(ii) Transport category turbo-

propeller powered airplanes that have a 
passenger seat configuration of 20–30 
seats; or 

(iii) Turbojet engine powered air-

planes having a passenger seat configu-
ration of 1–30 seats. 

(2) Each person who, after January 

19, 1996, applies for or obtains an initial 
air carrier or operating certificate and 
operations specifications to conduct 
scheduled passenger-carrying oper-
ations in the kinds of airplanes de-
scribed in paragraphs (a)(1)(i), (a)(1)(ii), 
or paragraph (a)(1)(iii) of this section. 

(b) 

Obtaining operations specifications. 

A certificate holder described in para-
graph (a)(1) of this section may not, 
after March 20, 1997, operate an air-
plane described in paragraphs (a)(1)(i), 
(a)(1)(ii), or (a)(1)(iii) of this section in 
scheduled passenger-carrying oper-
ations, unless it obtains operations 
specifications to conduct its scheduled 
operations under this part on or before 
March 20, 1997. 

background image

81 

Federal Aviation Administration, DOT 

§ 121.2 

(c) 

Regular or accelerated compliance. 

Except as provided in paragraphs (d), 
(e), and (i) of this section, each certifi-
cate holder described in paragraphs 
(a)(1) of this section shall comply with 
each applicable requirement of this 
part on and after March 20, 1997 or on 
and after the date on which the certifi-
cate holder is issued operations speci-
fications under this part, whichever oc-
curs first. Except as provided in para-
graphs (d) and (e) of this section, each 
person described in paragraph (a)(2) of 
this section shall comply with each ap-
plicable requirement of this part on 
and after the date on which that person 
is issued a certificate and operations 
specifications under this part. 

(d) 

Delayed compliance dates. 

Unless 

paragraph (e) of this section specifies 
an earlier compliance date, no certifi-
cate holder that is covered by para-
graph (a) of this section may operate 
an airplane in 14 CFR part 121 oper-
ations on or after a date listed in this 
paragraph (d) unless that airplane 
meets the applicable requirement of 
this paragraph (d): 

(1) 

Nontransport category turbo-

propeller powered airplanes type certifi-
cated after December 31, 1964, that have a 
passenger seat configuration of 10–19 
seats. 

No certificate holder may oper-

ate under this part an airplane that is 
described in paragraph (a)(1)(i) of this 
section on or after a date listed in 
paragraph (d)(1) of this section unless 
that airplane meets the applicable re-
quirement listed in paragraph (d)(1) of 
this section: 

(i) December 20, 1997: 
(A) Section 121.289, Landing gear 

aural warning. 

(B) Section 121.308, Lavatory fire pro-

tection. 

(C) Section 121.310(e), Emergency exit 

handle illumination. 

(D) Section 121.337(b)(8), Protective 

breathing equipment. 

(E) Section 121.340, Emergency flota-

tion means. 

(ii) December 20, 1999: Section 121.342, 

Pitot heat indication system. 

(iii) December 20, 2010: 
(A) For airplanes described in 

§ 121.157(f), the Airplane Performance 
Operating Limitations in §§ 121.189 
through 121.197. 

(B) Section 121.161(b), Ditching ap-

proval. 

(C) Section 121.305(j), Third attitude 

indicator. 

(D) Section 121.312(c), Passenger seat 

cushion flammability. 

(iv) March 12, 1999: Section 

121.310(b)(1), Interior emergency exit 
locating sign. 

(2) 

Transport category turbopropeller 

powered airplanes that have a passenger 
seat configuration of 20–30 seats. 

No cer-

tificate holder may operate under this 
part an airplane that is described in 
paragraph (a)(1)(ii) of this section on or 
after a date listed in paragraph (d)(2) of 
this section unless that airplane meets 
the applicable requirement listed in 
paragraph (d)(2) of this section: 

(i) December 20, 1997: 
(A) Section 121.308, Lavatory fire pro-

tection. 

(B) Section 121.337(b) (8) and (9), Pro-

tective breathing equipment. 

(C) Section 121.340, Emergency flota-

tion means. 

(ii) December 20, 2010: § 121.305(j), 

third attitude indicator. 

(e) 

Newly manufactured airplanes. 

No 

certificate holder that is described in 
paragraph (a) of this section may oper-
ate under this part an airplane manu-
factured on or after a date listed in 
this paragraph unless that airplane 
meets the applicable requirement list-
ed in this paragraph (e). 

(1) For nontransport category turbo-

propeller powered airplanes type cer-
tificated after December 31, 1964, that 
have a passenger seat configuration of 
10–19 seats: 

(i) Manufactured on or after March 

20, 1997: 

(A) Section 121.305(j), Third attitude 

indicator. 

(B) Section 121.311(f), Safety belts 

and shoulder harnesses. 

(ii) Manufactured on or after Decem-

ber 20, 1997; Section 121.317(a), Fasten 
seat belt light. 

(iii) Manufactured on or after Decem-

ber 20, 1999: Section 121.293, Takeoff 
warning system. 

(iv) Manufactured on or after March 

12, 1999: Section 121.310(b)(1), Interior 
emergency exit locating sign. 

(2) For transport category turbo-

propeller powered airplanes that have a 
passenger seat configuration of 20–30 

background image

82 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.4 

seats manufactured on or after March 
20, 1997: Section 121.305(j), Third atti-
tude indicator. 

(f) 

New type certification requirements. 

No person may operate an airplane for 
which the application for a type cer-
tificate was filed after March 29, 1995, 
in 14 CFR part 121 operations unless 
that airplane is type certificated under 
part 25 of this chapter. 

(g) 

Transition plan. 

Before March 19, 

1996 each certificate holder described in 
paragraph (a)(1) of this section must 
submit to the FAA a transition plan 
(containing a calendar of events) for 
moving from conducting its scheduled 
operations under the commuter re-
quirements of part 135 of this chapter 
to the requirements for domestic or 
flag operations under this part. Each 
transition plan must contain details on 
the following: 

(1) Plans for obtaining new oper-

ations specifications authorizing do-
mestic or flag operations; 

(2) Plans for being in compliance 

with the applicable requirements of 
this part on or before March 20, 1997; 
and 

(3) Plans for complying with the com-

pliance date schedules contained in 
paragraphs (d) and (e) of this section. 

(h) 

Continuing requirements. 

A certifi-

cate holder described in paragraph (a) 
of this section shall comply with the 
applicable airplane operating and 
equipment requirements of part 135 of 
this chapter for the airplanes described 
in paragraph (a)(1) of this section, until 
the airplane meets the specific compli-
ance dates in paragraphs (d) and (e) of 
this section. 

(i) Any training or qualification ob-

tained by a crewmember under part 135 
of this chapter before March 20, 1997, is 
entitled to credit under this part for 
the purpose of meeting the require-
ments of this part, as determined by 
the Administrator. Records kept by a 
certificate holder under part 135 of this 
chapter before March 20, 1997, can be 
annotated, with the approval of the Ad-
ministrator, to reflect crewmember 

training and qualification credited to-
ward part 121 requirements. 

[Doc. No. 28154, 60 FR 65925, Dec. 20, 1995, as 
amended by Amdt. 121–253, 61 FR 2609, Jan. 
26, 1996; Amdt. 121–256, 61 FR 30434, June 14, 
1996; Amdt. 121–262, 62 FR 13256, Mar. 19, 1997; 
Amdt. 121–344, 74 FR 34234, July 15, 2009] 

§ 121.4 Applicability of rules to unau-

thorized operators. 

The rules in this part which refer to 

a person certificated under part 119 of 
this chapter apply also to any person 
who engages in an operation governed 
by this part without the appropriate 
certificate and operations specifica-
tions required by part 119 of this chap-
ter. 

[Doc. No. 11675, 37 FR 20937, Oct. 5, 1972, as 
amended by Amdt. 121–251, 60 FR 65926, Dec. 
20, 1995] 

§ 121.7 Definitions. 

The following definitions apply to 

those sections of part 121 that apply to 
ETOPS: 

Adequate Airport 

means an airport 

that an airplane operator may list with 
approval from the FAA because that 
airport meets the landing limitations 
of § 121.197 and is either— 

(1) An airport that meets the require-

ments of part 139, subpart D of this 
chapter, excluding those that apply to 
aircraft rescue and firefighting service, 
or 

(2) A military airport that is active 

and operational. 

ETOPS Alternate Airport 

means an 

adequate airport listed in the certifi-
cate holder’s operations specifications 
that is designated in a dispatch or 
flight release for use in the event of a 
diversion during ETOPS. This defini-
tion applies to flight planning and does 
not in any way limit the authority of 
the pilot-in-command during flight. 

ETOPS Area of Operation 

means one 

of the following areas: 

(1) For turbine-engine-powered air-

planes with two engines, an area be-
yond 60 minutes from an adequate air-
port, computed using a one-engine-in-
operative cruise speed under standard 
conditions in still air. 

(2) For turbine-engine-powered pas-

senger-carrying airplanes with more 
than two engines, an area beyond 180 
minutes from an adequate airport, 

background image

83 

Federal Aviation Administration, DOT 

§ 121.15 

computed using a one-engine-inoper-
ative cruise speed under standard con-
ditions in still air. 

ETOPS Entry Point 

means the first 

point on the route of an ETOPS flight, 
determined using a one-engine-inoper-
ative cruise speed under standard con-
ditions in still air, that is— 

(1) More than 60 minutes from an 

adequate airport for airplanes with two 
engines; 

(2) More than 180 minutes from an 

adequate airport for passenger-car-
rying airplanes with more than two en-
gines. 

ETOPS Qualified Person 

means a per-

son, performing maintenance for the 
certificate holder, who has satisfac-
torily completed the certificate hold-
er’s ETOPS training program. 

Maximum Diversion Time 

means, for 

the purposes of ETOPS route planning, 
the longest diversion time authorized 
for a flight under the operator’s 
ETOPS authority. It is calculated 
under standard conditions in still air 
at a one-engine-inoperative cruise 
speed. 

North Pacific Area of Operation 

means 

Pacific Ocean areas north of 40

° 

N lati-

tudes including NOPAC ATS routes, 
and published PACOTS tracks between 
Japan and North America. 

North Polar Area 

means the entire 

area north of 78

° 

N latitude. 

One-engine-inoperative-Cruise Speed 

means a speed within the certified op-
erating limits of the airplane that is 
specified by the certificate holder and 
approved by the FAA for — 

(1) Calculating required fuel reserves 

needed to account for an inoperative 
engine; or 

(2) Determining whether an ETOPS 

alternate is within the maximum di-
version time authorized for an ETOPS 
flight. 

South Polar Area 

means the entire 

area South of 60

° 

S latitude. 

[Doc. No. FAA–2002–6717, 72 FR 1878, Jan. 16, 
2007] 

§ 121.9 Fraud and falsification. 

(a) No person may make, or cause to 

be made, any of the following: 

(1) A fraudulent or intentionally false 

statement in any application or any 
amendment thereto, or in any other 

record or test result required by this 
part. 

(2) A fraudulent or intentionally false 

statement in, or a known omission 
from, any record or report that is kept, 
made, or used to show compliance with 
this part, or to exercise any privileges 
under this chapter. 

(b) The commission by any person of 

any act prohibited under paragraph (a) 
of this section is a basis for any one or 
any combination of the following: 

(1) A civil penalty. 
(2) Suspension or revocation of any 

certificate held by that person that 
was issued under this chapter. 

(3) The denial of an application for 

any approval under this part. 

(4) The removal of any approval 

under this part. 

[Doc. No. FAA–2008–0677, 78 FR 67836, Nov. 12, 
2013] 

§ 121.11 Rules applicable to operations 

in a foreign country. 

Each certificate holder shall, while 

operating an airplane within a foreign 
country, comply with the air traffic 
rules of the country concerned and the 
local airport rules, except where any 
rule of this part is more restrictive and 
may be followed without violating the 
rules of that country. 

[Doc. No. 16383, 43 FR 22641, May 25, 1978] 

§ 121.15 Carriage of narcotic drugs, 

marihuana, and depressant or stim-

ulant drugs or substances. 

If a certificate holder operating 

under this part permits any aircraft 
owned or leased by that holder to be 
engaged in any operation that the cer-
tificate holder knows to be in violation 
of § 91.19(a) of this chapter, that oper-
ation is a basis for suspending or re-
voking the certificate. 

[Doc. No. 28154, 60 FR 65926, Dec. 20, 1995] 

Subpart B—Certification Rules for 

Domestic and Flag Air Car-
riers 

[

Reserved

Subpart C—Certification Rules for 

Supplemental Air Carriers and 
Commercial Operators 

[

Re-

served

background image

84 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.91 

Subpart D—Rules Governing All 

Certificate Holders Under This 
Part 

[

Reserved

Subpart E—Approval of Routes: 

Domestic and Flag Operations 

S

OURCE

: Docket No. 6258, 29 FR 19194, Dec. 

31, 1964, unless otherwise noted. 

§ 121.91 Applicability. 

This subpart prescribes rules for ob-

taining approval of routes by certifi-
cate holders conducting domestic or 
flag operations. 

[Doc. No. 28154, 61 FR 2610, Jan. 26, 1996] 

§ 121.93 Route requirements: General. 

(a) Each certificate holder con-

ducting domestic or flag operations 
seeking a route approval must show— 

(1) That it is able to conduct satisfac-

torily scheduled operations between 
each regular, provisional, and refueling 
airport over that route or route seg-
ment; and 

(2) That the facilities and services re-

quired by §§ 121.97 through 121.107 are 
available and adequate for the proposed 
operation. 

The Administrator approves a route 
outside of controlled airspace if he de-
termines that traffic density is such 
that an adequate level of safety can be 
assured. 

(b) Paragraph (a) of this section does 

not require actual flight over a route 
or route segment if the certificate 
holder shows that the flight is not es-
sential to safety, considering the avail-
ability and adequacy of airports, light-
ing, maintenance, communication, 
navigation, fueling, ground, and air-
plane radio facilities, and the ability of 
the personnel to be used in the pro-
posed operation. 

[Doc. No. 6258, 29 FR 19194, Dec. 31, 1964, as 
amended by Amdt. 121–3, 30 FR 3638, Mar. 19, 
1965; Amdt. 121–253, 61 FR 2610, Jan. 26, 1996] 

§ 121.95 Route width. 

(a) Approved routes and route seg-

ments over U.S. Federal airways or for-
eign airways (and advisory routes in 
the case of certificate holders con-
ducting flag operations) have a width 
equal to the designated width of those 

airways or routes. Whenever the Ad-
ministrator finds it necessary to deter-
mine the width of other approved 
routes, he considers the following: 

(1) Terrain clearance. 
(2) Minimum en route altitudes. 
(3) Ground and airborne navigation 

aids. 

(4) Air traffic density. 
(5) ATC procedures. 
(b) Any route widths of other ap-

proved routes determined by the Ad-
ministrator are specified in the certifi-
cate holder’s operations specifications. 

[Doc. No. 6258, 29 FR 19194, Dec. 31, 1964, as 
amended by Amdt. 121–253, 61 FR 2610, Jan. 
26, 1996] 

§ 121.97 Airports: Required data. 

(a) Each certificate holder con-

ducting domestic or flag operations 
must show that each route it submits 
for approval has enough airports that 
are properly equipped and adequate for 
the proposed operation, considering 
such items as size, surface, obstruc-
tions, facilities, public protection, 
lighting, navigational and communica-
tions aids, and ATC. 

(b) Each certificate holder con-

ducting domestic or flag operations 
must show that it has an approved sys-
tem for obtaining, maintaining, and 
distributing to appropriate personnel 
current aeronautical data for each air-
port it uses to ensure a safe operation 
at that airport. The aeronautical data 
must include the following: 

(1)

Airports. 

(i)

Facilities. 

(ii) Public protection. After February 

15, 2008, for ETOPS beyond 180 minutes 
or operations in the North Polar area 
and South Polar area, this includes fa-
cilities at each airport or in the imme-
diate area sufficient to protect the pas-
sengers from the elements and to see to 
their welfare. 

(iii)

Navigational and communica-

tions aids. 

(iv)

Construction affecting takeoff, 

landing, or ground operations. 

(v)

Air traffic facilities. 

(2)

Runways, clearways and 

stopways. 

(i)

Dimensions. 

(ii)

Surface. 

(iii)

Marking and lighting systems. 

(iv)

Elevation and gradient. 

background image

85 

Federal Aviation Administration, DOT 

§ 121.99 

(3)

Displaced thresholds. 

(i)

Location. 

(ii)

Dimensions. 

(iii)

Takeoff or landing or both. 

(4)

Obstacles. 

(i)

Those affecting takeoff and land-

ing performance computations in ac-
cordance with Subpart I of this part. 

(ii)

Controlling obstacles. 

(5)

Instrument flight procedures. 

(i)

Departure procedure. 

(ii)

Approach procedure. 

(iii)

Missed approach procedure. 

(6)

Special information. 

(i)

Runway visual range measure-

ment equipment. 

(ii)

Prevailing winds under low visi-

bility conditions. 

(c) If the responsible Flight Stand-

ards office charged with the overall in-
spection of the certificate holder’s op-
erations finds that revisions are nec-
essary for the continued adequacy of 
the certificate holder’s system for col-
lection, dissemination, and usage of 
aeronautical data that has been grant-
ed approval, the certificate holder 
shall, after notification by the respon-
sible Flight Standards office, make 
those revisions in the system. Within 
30 days after the certificate holder re-
ceives such notice, the certificate hold-
er may file a petition to reconsider the 
notice with the Executive Director, 
Flight Standards Service. This filing of 
a petition to reconsider stays the no-
tice pending a decision by the Execu-
tive Director, Flight Standards Serv-
ice. However, if the responsible Flight 
Standards office finds that there is an 
emergency that requires immediate ac-
tion in the interest of safety in air 
transportation, the Executive Director, 
Flight Standards Service may, upon 
statement of the reasons, require a 
change effective without stay. 

[Doc. No. 6258, 29 FR 19194, Dec. 31, 1964, as 
amended by Amdt. 121–162, 45 FR 46738, July 
10, 1980; Amdt. 121–207, 54 FR 39293, Sept. 25, 
1989; Amdt. 121–253, 61 FR 2610, Jan. 26, 1996; 
Amdt. 121–329, 72 FR 1878, Jan. 16, 2007; Dock-
et FAA–2018–0119, Amdt. 121–380, 83 FR 9172, 
9173, Mar. 5, 2018] 

§ 121.99 Communications facilities— 

domestic and flag operations. 

(a) Each certificate holder con-

ducting domestic or flag operations 
must show that a two-way communica-
tion system, or other means of commu-

nication approved by the responsible 
Flight Standards office, is available 
over the entire route. The communica-
tions may be direct links or via an ap-
proved communication link that will 
provide reliable and rapid communica-
tions under normal operating condi-
tions between each airplane and the ap-
propriate dispatch office, and between 
each airplane and the appropriate air 
traffic control unit. 

(b) Except in an emergency, for all 

flag and domestic kinds of operations, 
the communications systems between 
each airplane and the dispatch office 
must be independent of any system op-
erated by the United States. 

(c) Each certificate holder con-

ducting flag operations must provide 
voice communications for ETOPS 
where voice communication facilities 
are available. In determining whether 
facilities are available, the certificate 
holder must consider potential routes 
and altitudes needed for diversion to 
ETOPS Alternate Airports. Where fa-
cilities are not available or are of such 
poor quality that voice communication 
is not possible, another communication 
system must be substituted. 

(d) Except as provided in paragraph 

(e) of this section, after February 15, 
2008 for ETOPS beyond 180 minutes, 
each certificate holder conducting flag 
operations must have a second commu-
nication system in addition to that re-
quired by paragraph (c) of this section. 
That system must be able to provide 
immediate satellite-based voice com-
munications of landline-telephone fi-
delity. The system must be able to 
communicate between the flight crew 
and air traffic services, and the flight 
crew and the certificate holder. In de-
termining whether such communica-
tions are available, the certificate 
holder must consider potential routes 
and altitudes needed for diversion to 
ETOPS Alternate Airports. Where im-
mediate, satellite-based voice commu-
nications are not available, or are of 
such poor quality that voice commu-
nication is not possible, another com-
munication system must be sub-
stituted. 

(e) Operators of two-engine turbine- 

powered airplanes with 207 minute 
ETOPS approval in the North Pacific 
Area of Operation must comply with 

background image

86 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.101 

the requirements of paragraph (d) of 
this section as of February 15, 2007. 

[Doc. No. 28154, 62 FR 13256, Mar. 19, 1997, as 
amended by Amdt. 121–329, 72 FR 1878, Jan. 
16, 2007; Amdt. 121–333, 72 FR 31680, June 7, 
2007; Docket FAA–2018–0119, Amdt. 121–380, 83 
FR 9173, Mar. 5, 2018] 

§ 121.101 Weather reporting facilities. 

(a) Each certificate holder con-

ducting domestic or flag operations 
must show that enough weather report-
ing services are available along each 
route to ensure weather reports and 
forecasts necessary for the operation. 

(b) Except as provided in paragraph 

(d) of this section, no certificate holder 
conducting domestic or flag operations 
may use any weather report to control 
flight unless— 

(1) For operations within the 48 con-

tiguous States and the District of Co-
lumbia, it was prepared by the U.S. Na-
tional Weather Service or a source ap-
proved by the U.S. National Weather 
Service; or 

(2) For operations conducted outside 

the 48 contiguous States and the Dis-
trict of Columbia, it was prepared by a 
source approved by the Administrator. 

(c) Each certificate holder con-

ducting domestic or flag operations 
that uses forecasts to control flight 
movements shall use forecasts prepared 
from weather reports specified in para-
graph (b) of this section and from any 
source approved under its system 
adopted pursuant to paragraph (d) of 
this section. 

(d) Each certificate holder con-

ducting domestic or flag operations 
shall adopt and put into use an ap-
proved system for obtaining forecasts 
and reports of adverse weather phe-
nomena, such as clear air turbulence, 
thunderstorms, and low altitude wind 
shear, that may affect safety of flight 
on each route to be flown and at each 
airport to be used. 

[Doc. No. 6258, 29 FR 19194, Dec. 31, 1964, as 
amended by Amdt. 121–27, 36 FR 13911, July 
28, 1971; Amdt. 121–134, 42 FR 27573, May 31, 
1977; Amdt. 121–253, 61 FR 2610, Jan. 26, 1996] 

§ 121.103 En route navigation facili-

ties. 

(a) Except as provided in paragraph 

(b) of this section, each certificate 
holder conducting domestic or flag op-

erations must show, for each proposed 
route (including to any regular, provi-
sional, refueling or alternate airports), 
that suitable navigation aids are avail-
able to navigate the airplane along the 
route within the degree of accuracy re-
quired for ATC. Navigation aids re-
quired for approval of routes outside of 
controlled airspace are listed in the 
certificate holder’s operations speci-
fications except for those aids required 
for routes to alternate airports. 

(b) Navigation aids are not required 

for any of the following operations— 

(1) Day VFR operations that the cer-

tificate holder shows can be conducted 
safely by pilotage because of the char-
acteristics of the terrain; 

(2) Night VFR operations on routes 

that the certificate holder shows have 
reliably lighted landmarks adequate 
for safe operation; and 

(3) Other operations approved by the 

responsible Flight Standards office. 

[Doc. No. FAA–2002–14002, 72 FR 31681, June 7, 
2007, as amended by Docket FAA–2018–0119, 
Amdt. 121–380, 83 FR 9173, Mar. 5, 2018] 

§ 121.105 Servicing and maintenance 

facilities. 

Each certificate holder conducting 

domestic or flag operations must show 
that competent personnel and adequate 
facilities and equipment (including 
spare parts, supplies, and materials) 
are available at such points along the 
certificate holder’s route as are nec-
essary for the proper servicing, mainte-
nance, and preventive maintenance of 
airplanes and auxiliary equipment. 

[Doc. No. 28154, 61 FR 2610, Jan. 26, 1996] 

§ 121.106 ETOPS Alternate Airport: 

Rescue and fire fighting service. 

(a) Except as provided in paragraph 

(b) of this section, the following rescue 
and fire fighting service (RFFS) must 
be available at each airport listed as an 
ETOPS Alternate Airport in a dispatch 
or flight release. 

(1) For ETOPS up to 180 minutes, 

each designated ETOPS Alternate Air-
port must have RFFS equivalent to 
that specified by ICAO as Category 4, 
or higher. 

(2) For ETOPS beyond 180 minutes, 

each designated ETOPS Alternate Air-
port must have RFFS equivalent to 
that specified by ICAO Category 4, or 

background image

87 

Federal Aviation Administration, DOT 

§ 121.115 

higher. In addition, the aircraft must 
remain within the ETOPS authorized 
diversion time from an Adequate Air-
port that has RFFS equivalent to that 
specified by ICAO Category 7, or high-
er. 

(b) If the equipment and personnel re-

quired in paragraph (a) of this section 
are not immediately available at an 
airport, the certificate holder may still 
list the airport on the dispatch or 
flight release if the airport’s RFFS can 
be augmented to meet paragraph (a) of 
this section from local fire fighting as-
sets. A 30-minute response time for 
augmentation is adequate if the local 
assets can be notified while the divert-
ing airplane is en route. The aug-
menting equipment and personnel must 
be available on arrival of the diverting 
airplane and must remain as long as 
the diverting airplane needs RFFS. 

[Doc. No. FAA–2002–6717, 72 FR 1879, Jan. 16, 
2007] 

§ 121.107 Dispatch centers. 

Each certificate holder conducting 

domestic or flag operations must show 
that it has enough dispatch centers, 
adequate for the operations to be con-
ducted, that are located at points nec-
essary to ensure proper operational 
control of each flight. 

[Doc. No. 28154, 61 FR 2610, Jan. 26, 1996] 

Subpart F—Approval of Areas and 

Routes for Supplemental Op-
erations 

S

OURCE

: Docket No. 6258, 29 FR 19195, Dec. 

31, 1964, unless otherwise noted. 

§ 121.111 Applicability. 

This subpart prescribes rules for ob-

taining approval of areas and routes by 
certificate holders conducting supple-
mental operations. 

[Doc. No. 28154, 61 FR 2610, Jan. 26, 1996] 

§ 121.113 Area and route requirements: 

General. 

(a) Each certificate holder con-

ducting supplemental operations seek-
ing route and area approval must 
show— 

(1) That it is able to conduct oper-

ations within the United States in ac-

cordance with paragraphs (a) (3) and (4) 
of this section; 

(2) That it is able to conduct oper-

ations in accordance with the applica-
ble requirements for each area outside 
the United States for which authoriza-
tion is requested; 

(3) That it is equipped and able to 

conduct operations over, and use the 
navigational facilities associated with, 
the Federal airways, foreign airways, 
or advisory routes (ADR’s) to be used; 
and 

(4) That it will conduct all IFR and 

night VFR operations over Federal air-
ways, foreign airways, controlled air-
space, or advisory routes (ADR’s). 

(b) Notwithstanding paragraph (a)(4) 

of this section, the Administrator may 
approve a route outside of controlled 
airspace if the certificate holder con-
ducting supplemental operations shows 
the route is safe for operations and the 
Administrator finds that traffic den-
sity is such that an adequate level of 
safety can be assured. The certificate 
holder may not use such a route unless 
it is approved by the Administrator 
and is listed in the certificate holder’s 
operations specifications. 

[Doc. No. 6258, 29 FR 19195, Dec. 31, 1964, as 
amended by Amdt. 121–253, 61 FR 2610, Jan. 
26, 1996] 

§ 121.115 Route width. 

(a) Routes and route segments over 

Federal airways, foreign airways, or 
advisory routes have a width equal to 
the designated width of those airways 
or advisory routes. Whenever the Ad-
ministrator finds it necessary to deter-
mine the width of other routes, he con-
siders the following: 

(1) Terrain clearance. 
(2) Minimum en route altitudes. 
(3) Ground and airborne navigation 

aids. 

(4) Air traffic density. 
(5) ATC procedures. 
(b) Any route widths of other routes 

determined by the Administrator are 
specified in the certificate holder’s op-
erations specifications. 

[Doc. No. 6258, 29 FR 19195, Dec. 31, 1964, as 
amended by Amdt. 121–253, 61 FR 2610, Jan. 
26, 1996] 

background image

88 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.117 

§ 121.117 Airports: Required data. 

(a) No certificate holder conducting 

supplemental operations may use any 
airport unless it is properly equipped 
and adequate for the proposed oper-
ation, considering such items as size, 
surface, obstructions, facilities, public 
protection, lighting, navigational and 
communications aids, and ATC. 

(b) Each certificate holder con-

ducting supplemental operations must 
show that it has an approved system 
for obtaining, maintaining, and distrib-
uting to appropriate personnel current 
aeronautical data for each airport it 
uses to ensure a safe operation at that 
airport. The aeronautical data must in-
clude the following: 

(1)

Airports. 

(i)

Facilities. 

(ii)

Public protection. 

(iii)

Navigational and communica-

tions aids. 

(iv)

Construction affecting takeoff, 

landing, or ground operations. 

(v)

Air traffic facilities. 

(2)

Runways, clearways, and 

stopways. 

(i)

Dimensions. 

(ii)

Surface. 

(iii)

Marking and lighting systems. 

(iv)

Elevation and gradient. 

(3)

Displaced thresholds. 

(i)

Location. 

(ii)

Dimensions. 

(iii)

Takeoff or landing or both. 

(4)

Obstacles. 

(i)

Those affecting takeoff and land-

ing performance computations in ac-
cordance with Subpart I of this part. 

(ii)

Controlling obstacles. 

(5)

Instrument flight procedures. 

(i)

Departure procedure. 

(ii)

Approach procedure. 

(iii)

Missed approach procedure. 

(6)

Special information. 

(i)

Runway visual range measure-

ment equipment. 

(ii)

Prevailing winds under low visi-

bility conditions. 

(c) If the responsible Flight Stand-

ards office charged with the overall in-
spection of the certificate holder’s op-
erations finds that revisions are nec-
essary for the continued adequacy of 
the certificate holder’s system for col-
lection, dissemination, and usage of 
aeronautical data that has been grant-
ed approval, the certificate holder 

shall, after notification by the respon-
sible Flight Standards office, make 
those revisions in the system. Within 
30 days after the certificate holder re-
ceives such notice, the certificate hold-
er may file a petition to reconsider the 
notice with the Executive Director, 
Flight Standards Service. This filing of 
a petition to reconsider stays the no-
tice pending a decision by the Director, 
Flight Standards Service. However, if 
the responsible Flight Standards office 
finds that there is an emergency that 
requires immediate action in the inter-
est of safety in air transportation, the 
Executive Director, Flight Standards 
Service may, upon a statement of the 
reasons, require a change effective 
without stay. 

[Doc. No. 6258, 29 FR 19195, Dec. 31, 1964, as 
amended by Amdt. 121–162, 45 FR 46738, July 
10, 1980; Amdt. 121–207, 54 FR 39293, Sept. 25, 
1989; Amdt. 121–253, 61 FR 2610, Jan. 26, 1996; 
Docket FAA–2018–0119, Amdt. 121–380, 83 FR 
9172, 9173, Mar. 5, 2018] 

§ 121.119 Weather reporting facilities. 

(a) No certificate holder conducting 

supplemental operations may use any 
weather report to control flight unless 
it was prepared and released by the 
U.S. National Weather Service or a 
source approved by the Weather Bu-
reau. For operations outside the U.S., 
or at U.S. Military airports, where 
those reports are not available, the cer-
tificate holder must show that its 
weather reports are prepared by a 
source found satisfactory by the Ad-
ministrator. 

(b) Each certificate holder con-

ducting supplemental operations that 
uses forecasts to control flight move-
ments shall use forecasts prepared 
from weather reports specified in para-
graph (a) of this section. 

[Doc. No. 6258, 29 FR 19195, Dec. 31, 1964, as 
amended by Amdt. 121–76, 36 FR 13911, July 
28, 1971; Amdt. 121–253, 61 FR 2611, Jan. 26, 
1996] 

§ 121.121 En route navigation facili-

ties. 

(a) Except as provided in paragraph 

(b) of this section, no certificate holder 
conducting supplemental operations 
may conduct any operation over a 
route (including to any destination, re-
fueling or alternate airports) unless 

background image

89 

Federal Aviation Administration, DOT 

§ 121.125 

suitable navigation aids are available 
to navigate the airplane along the 
route within the degree of accuracy re-
quired for ATC. Navigation aids re-
quired for routes outside of controlled 
airspace are listed in the certificate 
holder’s operations specifications ex-
cept for those aids required for routes 
to alternate airports. 

(b) Navigation aids are not required 

for any of the following operations— 

(1) Day VFR operations that the cer-

tificate holder shows can be conducted 
safely by pilotage because of the char-
acteristics of the terrain; 

(2) Night VFR operations on routes 

that the certificate holder shows have 
reliably lighted landmarks adequate 
for safe operation; and 

(3) Other operations approved by the 

responsible Flight Standards office. 

[Doc. No. FAA–2002–14002, 72 FR 31681, June 7, 
2007, as amended by Docket FAA–2018–0119, 
Amdt. 121–380, 83 FR 9173, Mar. 5, 2018] 

§ 121.122 Communications facilities— 

supplemental operations. 

(a) Each certificate holder con-

ducting supplemental operations other 
than all-cargo operations in an air-
plane with more than two engines must 
show that a two-way radio communica-
tion system or other means of commu-
nication approved by the FAA is avail-
able. It must ensure reliable and rapid 
communications under normal oper-
ating conditions over the entire route 
(either direct or via approved point-to- 
point circuits) between each airplane 
and the certificate holder, and between 
each airplane and the appropriate air 
traffic services, except as specified in 
§ 121.351(c). 

(b) Except as provided in paragraph 

(d) of this section, each certificate 
holder conducting supplemental oper-
ations other than all-cargo operations 
in an airplane with more than two en-
gines must provide voice communica-
tions for ETOPS where voice commu-
nication facilities are available. In de-
termining whether facilities are avail-
able, the certificate holder must con-
sider potential routes and altitudes 
needed for diversion to ETOPS Alter-
nate Airports. Where facilities are not 
available or are of such poor quality 
that voice communication is not pos-

sible, another communication system 
must be substituted. 

(c) Except as provided in paragraph 

(d) of this section, for ETOPS beyond 
180 minutes each certificate holder 
conducting supplemental operations 
other than all-cargo operations in an 
airplane with more than two engines 
must have a second communication 
system in addition to that required by 
paragraph (b) of this section. That sys-
tem must be able to provide immediate 
satellite-based voice communications 
of landline telephone-fidelity. The sys-
tem must provide communication ca-
pabilities between the flight crew and 
air traffic services and the flight crew 
and the certificate holder. In deter-
mining whether such communications 
are available, the certificate holder 
must consider potential routes and al-
titudes needed for diversion to ETOPS 
Alternate Airports. Where immediate, 
satellite-based voice communications 
are not available, or are of such poor 
quality that voice communication is 
not possible, another communication 
system must be substituted. 

(d) Operators of turbine engine pow-

ered airplanes do not need to meet the 
requirements of paragraphs (b) and (c) 
of this section until February 15, 2008. 

[Doc. No. FAA–2002–6717, 72 FR 1879, Jan. 16, 
2007] 

§ 121.123 Servicing maintenance facili-

ties. 

Each certificate holder conducting 

supplemental operations must show 
that competent personnel and adequate 
facilities and equipment (including 
spare parts, supplies, and materials) 
are available for the proper servicing, 
maintenance, and preventive mainte-
nance of aircraft and auxiliary equip-
ment. 

[Doc. No. 28154, 61 FR 2611, Jan. 26, 1996] 

§ 121.125 Flight following system. 

(a) Each certificate holder con-

ducting supplemental operations must 
show that it has— 

(1) An approved flight following sys-

tem established in accordance with 
subpart U of this part and adequate for 
the proper monitoring of each flight, 
considering the operations to be con-
ducted; and 

background image

90 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.127 

(2) Flight following centers located 

at those points necessary— 

(i) To ensure the proper monitoring 

of the progress of each flight with re-
spect to its departure at the point of 
origin and arrival at its destination, 
including intermediate stops and diver-
sions therefrom, and maintenance or 
mechanical delays encountered at 
those points or stops; and 

(ii) To ensure that the pilot in com-

mand is provided with all information 
necessary for the safety of the flight. 

(b) A certificate holder conducting 

supplemental operations may arrange 
to have flight following facilities pro-
vided by persons other than its employ-
ees, but in such a case the certificate 
holder continues to be primarily re-
sponsible for operational control of 
each flight. 

(c) A flight following system need not 

provide for in-flight monitoring by a 
flight following center. 

(d) The certificate holder’s oper-

ations specifications specify the flight 
following system it is authorized to use 
and the location of the centers. 

[Doc. No. 6258, 29 FR 19195, Dec. 31, 1964, as 
amended by Amdt. 121–253, 61 FR 2611, Jan. 
26, 1996] 

§ 121.127 Flight following system; re-

quirements. 

(a) Each certificate holder con-

ducting supplemental operations using 
a flight following system must show 
that— 

(1) The system has adequate facilities 

and personnel to provide the informa-
tion necessary for the initiation and 
safe conduct of each flight to— 

(i) The flight crew of each aircraft; 

and 

(ii) The persons designated by the 

certificate holder to perform the func-
tion of operational control of the air-
craft; and 

(2) The system has a means of com-

munication by private or available 
public facilities (such as telephone, 
telegraph, or radio) to monitor the 
progress of each flight with respect to 
its departure at the point of origin and 
arrival at its destination, including in-
termediate stops and diversions there-
from, and maintenance or mechanical 
delays encountered at those points or 
stops. 

(b) The certificate holder conducting 

supplemental operations must show 
that the personnel specified in para-
graph (a) of this section, and those it 
designates to perform the function of 
operational control of the aircraft, are 
able to perform their required duties. 

[Doc. No. 6258, 29 FR 19195, Dec. 31, 1964, as 
amended by Amdt. 121–253, 61 FR 2611, Jan. 
26, 1996] 

Subpart G—Manual Requirements 

§ 121.131 Applicability. 

This subpart prescribes requirements 

for preparing and maintaining manuals 
by all certificate holders. 

[Doc. No. 6258, 29 FR 19196, Dec. 31, 1964] 

§ 121.133 Preparation. 

(a) Each certificate holder shall pre-

pare and keep current a manual for the 
use and guidance of flight, ground oper-
ations, and management personnel in 
conducting its operations. 

(b) For the purpose of this subpart, 

the certificate holder may prepare that 
part of the manual containing mainte-
nance information and instructions, in 
whole or in part, in printed form or 
other form acceptable to the Adminis-
trator. 

[Doc. No. 28154, 60 FR 65926, Dec. 20, 1995] 

§ 121.135 Manual contents. 

(a) Each manual accessed in paper 

format must display the date of last re-
vision on each page. Each manual 
accessed in electronic format must dis-
play the date of last revision in a man-
ner in which a person can immediately 
ascertain it. Each manual required by 
§ 121.133 must: 

(1) Include instructions and informa-

tion necessary to allow the personnel 
concerned to perform their duties and 
responsibilities with a high degree of 
safety; 

(2) Be in a form that is easy to revise 

and; 

(3) Not be contrary to any applicable 

Federal regulation and, in the case of a 
flag or supplemental operation, any ap-
plicable foreign regulation, or the cer-
tificate holder’s operations specifica-
tions or operating certificate. 

background image

91 

Federal Aviation Administration, DOT 

§ 121.135 

(b) The manual may be in two or 

more separate parts, containing to-
gether all of the following information, 
but each part must contain that part of 
the information that is appropriate for 
each group of personnel: 

(1) General policies. 
(2) Duties and responsibilities of each 

crewmember, appropriate members of 
the ground organization, and manage-
ment personnel. 

(3) Reference to appropriate Federal 

Aviation Regulations. 

(4) Flight dispatching and oper-

ational control, including procedures 
for coordinated dispatch or flight con-
trol or flight following procedures, as 
applicable. 

(5) En route flight, navigation, and 

communication procedures, including 
procedures for the dispatch or release 
or continuance of flight if any item of 
equipment required for the particular 
type of operation becomes inoperative 
or unserviceable en route. 

(6) For domestic or flag operations, 

appropriate information from the en 
route operations specifications, includ-
ing for each approved route the types 
of airplanes authorized, the type of op-
eration such as VFR, IFR, day, night, 
etc., and any other pertinent informa-
tion. 

(7) For supplemental operations, ap-

propriate information from the oper-
ations specifications, including the 
area of operations authorized, the 
types of airplanes authorized, the type 
of operation such as VFR, IFR, day, 
night, etc., and any other pertinent in-
formation. 

(8) Appropriate information from the 

airport operations specifications, in-
cluding for each airport— 

(i) Its location (domestic and flag op-

erations only); 

(ii) Its designation (regular, alter-

nate, provisional, etc.) (domestic and 
flag operations only); 

(iii) The types of airplanes authorized 

(domestic and flag operations only); 

(iv) Instrument approach procedures; 
(v) Landing and takeoff minimums; 

and 

(vi) Any other pertinent information. 
(9) Takeoff, en route, and landing 

weight limitations. 

(10) For ETOPS, airplane perform-

ance data to support all phases of these 
operations. 

(11) Procedures for familiarizing pas-

sengers with the use of emergency 
equipment, during flight. 

(12) Emergency equipment and proce-

dures. 

(13) The method of designating suc-

cession of command of flight crew-
members. 

(14) Procedures for determining the 

usability of landing and takeoff areas, 
and for disseminating pertinent infor-
mation thereon to operations per-
sonnel. 

(15) Procedures for operating in peri-

ods of ice, hail, thunderstorms, turbu-
lence, or any potentially hazardous me-
teorological condition. 

(16) Each training program cur-

riculum required by § 121.403. 

(17) Instructions and procedures for 

maintenance, preventive maintenance, 
and servicing. 

(18) Time limitations, or standards 

for determining time limitations, for 
overhauls, inspections, and checks of 
airframes, engines, propellers, appli-
ances and emergency equipment. 

(19) Procedures for refueling aircraft, 

eliminating fuel contamination, pro-
tection from fire (including electro-
static protection), and supervising and 
protecting passengers during refueling. 

(20) Airworthiness inspections, in-

cluding instructions covering proce-
dures, standards, responsibilities, and 
authority of inspection personnel. 

(21) Methods and procedures for 

maintaining the aircraft weight and 
center of gravity within approved lim-
its. 

(22) Where applicable, pilot and dis-

patcher route and airport qualification 
procedures. 

(23) Accident notification procedures. 
(24) After February 15, 2008, for pas-

senger flag operations and for those 
supplemental operations that are not 
all-cargo operations outside the 48 con-
tiguous States and Alaska, 

(i) For ETOPS greater than 180 min-

utes a specific passenger recovery plan 
for each ETOPS Alternate Airport used 
in those operations, and 

(ii) For operations in the North Polar 

Area and South Polar Area a specific 

background image

92 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.137 

passenger recovery plan for each diver-
sion airport used in those operations. 

(25)(i) Procedures and information, as 

described in paragraph (b)(25)(ii) of this 
section, to assist each crewmember and 
person performing or directly super-
vising the following job functions in-
volving items for transport on an air-
craft: 

(A) Acceptance; 
(B) Rejection; 
(C) Handling; 
(D) Storage incidental to transport; 
(E) Packaging of company material; 

or 

(F) Loading. 
(ii) Ensure that the procedures and 

information described in this para-
graph are sufficient to assist the per-
son in identifying packages that are 
marked or labeled as containing haz-
ardous materials or that show signs of 
containing undeclared hazardous mate-
rials. The procedures and information 
must include: 

(A) Procedures for rejecting packages 

that do not conform to the Hazardous 
Materials Regulations in 49 CFR parts 
171 through 180 or that appear to con-
tain undeclared hazardous materials; 

(B) Procedures for complying with 

the hazardous materials incident re-
porting requirements of 49 CFR 171.15 
and 171.16 and discrepancy reporting re-
quirements of 49 CFR 175.31 

(C) The certificate holder’s hazmat 

policies and whether the certificate 
holder is authorized to carry, or is pro-
hibited from carrying, hazardous mate-
rials; and 

(D) If the certificate holder’s oper-

ations specifications permit the trans-
port of hazardous materials, procedures 
and information to ensure the fol-
lowing: 

(

1

) That packages containing haz-

ardous materials are properly offered 
and accepted in compliance with 49 
CFR parts 171 through 180; 

(

2

) That packages containing haz-

ardous materials are properly handled, 
stored, packaged, loaded, and carried 
on board an aircraft in compliance 
with 49 CFR parts 171 through 180; 

(

3

) That the requirements for Notice 

to the Pilot in Command (49 CFR 
175.33) are complied with; and 

(

4

) That aircraft replacement parts, 

consumable materials or other items 

regulated by 49 CFR parts 171 through 
180 are properly handled, packaged, and 
transported. 

(26) Other information or instruc-

tions relating to safety. 

(c) Each certificate holder shall 

maintain at least one complete copy of 
the manual at its principal base of op-
erations. 

[Doc. No. 6258, 29 FR 19196, Dec. 31, 1964, as 
amended by Amdt. 121–104, 38 FR 14915, June 
7, 1973; Amdt. 121–106, 38 FR 22377, Aug. 20, 
1973; Amdt. 121–143, 43 FR 22641, May 25, 1978; 
Amdt. 121–162, 45 FR 46739, July 10, 1980; 
Amdt. 121–251, 60 FR 65926, Dec. 20, 1995; 
Amdt. 121–250, 60 FR 65948, Dec. 20, 1995; 
Amdt. 121–316, 70 FR 58823, Oct. 7, 2005; Amdt. 
121–329, 72 FR 1879, Jan. 16, 2007; Docket No. 
FAA–2022–0912; Amdt. No. 121–388, 88 FR 
34443, May 30, 2023] 

§ 121.137 Distribution and availability. 

(a) Each certificate holder shall fur-

nish copies of the manual required by 
§ 121.133 (and the changes and additions 
thereto) or appropriate parts of the 
manual to— 

(1) Its appropriate ground operations 

and maintenance personnel; 

(2) Crewmembers; and 
(3) Representatives of the Adminis-

trator assigned to it. 

(b) Each person to whom a manual or 

appropriate parts of it are furnished 
under paragraph (a) of this section 
shall keep it up-to-date with the 
changes and additions furnished to 
that person and shall have the manual 
or appropriate parts of it accessible 
when performing assigned duties. 

(c) For the purpose of complying with 

paragraph (a) of this section, a certifi-
cate holder may furnish the persons 
listed therein the maintenance part of 
the manual in printed form or other 
form, acceptable to the Administrator, 
that is retrievable in the English lan-
guage. 

[Doc. No. 6258, 29 FR 19196, Dec. 31, 1964, as 
amended by Amdt. 121–71, 35 FR 17176, Nov. 7, 
1970; Amdt. 121–162, 45 FR 46739, July 10, 1980; 
Amdt. 121–262, 62 FR 13256, Mar. 19, 1997] 

§ 121.139 Manual accessibility: Supple-

mental operations. 

Each certificate holder conducting 

supplemental operations must ensure 
the appropriate parts of the manual are 
accessible to flight, ground, and main-
tenance personnel at all times when 

background image

93 

Federal Aviation Administration, DOT 

§ 121.153 

such personnel are performing their as-
signed duties. The information and in-
structions contained in the manual 
must be displayed clearly and be re-
trievable in the English language. 

[Docket No. FAA–2022–0912; Amdt. No. 121– 
388, 88 FR 34443, May 30, 2023] 

§ 121.141 Airplane flight manual. 

(a) Each certificate holder shall keep 

a current approved airplane flight man-
ual for each type of airplane that it op-
erates except for nontransport cat-
egory airplanes certificated before Jan-
uary 1, 1965. 

(b) In each airplane required to have 

an airplane flight manual in paragraph 
(a) of this section, the certificate hold-
er shall carry either the manual re-
quired by § 121.133, if it contains the in-
formation required for the applicable 
flight manual and this information is 
clearly identified as flight manual re-
quirements, or an approved Airplane 
Manual. If the certificate holder elects 
to carry the manual required by 
§ 121.133, the certificate holder may re-
vise the operating procedures sections 
and modify the presentation of per-
formance data from the applicable 
flight manual if the revised operating 
procedures and modified performance 
date presentation are— 

(1) Approved by the Administrator; 

and 

(2) Clearly identified as airplane 

flight manual requirements. 

[Doc. No. 28154, 60 FR 65927, Dec. 20, 1995] 

Subpart H—Aircraft Requirements 

S

OURCE

: Docket No. 6258, 29 FR 19197, Dec. 

31, 1964, unless otherwise noted. 

§ 121.151 Applicability. 

This subpart prescribes aircraft re-

quirements for all certificate holders. 

§ 121.153 Aircraft requirements: Gen-

eral. 

(a) Except as provided in paragraph 

(c) of this section, no certificate holder 
may operate an aircraft unless that 
aircraft— 

(1) Is registered as a civil aircraft of 

the United States and carries an appro-
priate current airworthiness certificate 
issued under this chapter; and 

(2) Is in an airworthy condition and 

meets the applicable airworthiness re-
quirements of this chapter, including 
those relating to identification and 
equipment. 

(b) A certificate holder may use an 

approved weight and balance control 
system based on average, assumed, or 
estimated weight to comply with appli-
cable airworthiness requirements and 
operating limitations. 

(c) A certificate holder may operate 

in common carriage, and for the car-
riage of mail, a civil aircraft which is 
leased or chartered to it without crew 
and is registered in a country which is 
a party to the Convention on Inter-
national Civil Aviation if— 

(1) The aircraft carries an appro-

priate airworthiness certificate issued 
by the country of registration and 
meets the registration and identifica-
tion requirements of that country; 

(2) The aircraft is of a type design 

which is approved under a U.S. type 
certificate and complies with all of the 
requirements of this chapter (14 CFR 
Chapter 1) that would be applicable to 
that aircraft were it registered in the 
United States, including the require-
ments which must be met for issuance 
of a U.S. standard airworthiness cer-
tificate (including type design con-
formity, condition for safe operation, 
and the noise, fuel venting, and engine 
emission requirements of this chapter), 
except that a U.S. registration certifi-
cate and a U.S. standard airworthiness 
certificate will not be issued for the 
aircraft; 

(3) The aircraft is operated by U.S.- 

certificated airmen employed by the 
certificate holder; and 

(4) The certificate holder files a copy 

of the aircraft lease or charter agree-
ment with the FAA Aircraft Registry, 
Department of Transportation, 6400 
South MacArthur Boulevard, Okla-
homa City, OK (Mailing address: P.O. 
Box 25504, Oklahoma City, OK 73125). 

[Doc. No. 6258, 29 FR 19197, Dec. 31, 1964, as 
amended by Amdt. 121–165, 45 FR 68649, Oct. 
16, 1980] 

background image

94 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.155 

§ 121.155 [Reserved] 

§ 121.157 Aircraft certification and 

equipment requirements. 

(a) 

Airplanes certificated before July 1, 

1942. 

No certificate holder may operate 

an airplane that was type certificated 
before July 1, 1942, unless— 

(1) That airplane meets the require-

ments of § 121.173(c), or 

(2) That airplane and all other air-

planes of the same or related type oper-
ated by that certificate holder meet 
the performance requirements of sec-
tions 4a.737–T through 4a.750–T of the 
Civil Air Regulations as in effect on 
January 31, 1965; or §§ 25.45 through 
25.75 and § 121.173(a), (b), (d), and (e) of 
this title. 

(b) 

Airplanes certificated after June 30, 

1942. 

Except as provided in paragraphs 

(c), (d), (e), and (f) of this section, no 
certificate holder may operate an air-
plane that was type certificated after 
June 30, 1942, unless it is certificated as 
a transport category airplane and 
meets the requirements of § 121.173(a), 
(b), (d), and (e). 

(c) 

C–46 type airplanes: passenger-car-

rying operations. 

No certificate holder 

may operate a C–46 airplane in pas-
senger-carrying operations unless that 
airplane is operated in accordance with 
the operating limitations for transport 
category airplanes and meets the re-
quirements of paragraph (b) of this sec-
tion or meets the requirements of part 
4b, as in effect July 20, 1950, and the re-
quirements of § 121.173 (a), (b), (d) and 
(e), except that— 

(1) The requirements of sections 4b.0 

through 4b.19 as in effect May 18, 1954, 
must be complied with; 

(2) The birdproof windshield require-

ments of section 4b.352 need not be 
complied with; 

(3) The provisions of sections 4b.480 

through 4b.490 (except sections 
4b.484(a)(1) and 4b.487(e)), as in effect 
May 16, 1953, must be complied with; 
and 

(4) The provisions of paragraph 

4b.484(a)(1), as in effect July 20, 1950, 
must be complied with. 

In determining the takeoff path in ac-
cordance with section 4b.116 and the 
one-engine inoperative climb in accord-
ance with section 4b.120 (a) and (b), the 
propeller of the inoperative engine may 

be assumed to be feathered if the air-
plane is equipped with either an ap-
proved means for automatically indi-
cating when the particular engine has 
failed or an approved means for auto-
matically feathering the propeller of 
the inoperative engine. The Adminis-
trator may authorize deviations from 
compliance with the requirements of 
sections 4b.130 through 4b.190 and sub-
parts C, D, E, and F of part 4b (as des-
ignated in this paragraph) if he finds 
that (considering the effect of design 
changes) compliance is extremely dif-
ficult to accomplish and that service 
experience with the C–46 airplane justi-
fies the deviation. 

(d) 

C–46 type airplanes: cargo oper-

ations. 

No certificate holder may use a 

nontransport category C–46 type air-
plane in cargo operations unless— 

(1) It is certificated at a maximum 

gross weight that is not greater than 
48,000 pounds; 

(2) It meets the requirements of 

§§ 121.199 through 121.205 using the per-
formance data in appendix C to this 
part; 

(3) Before each flight, each engine 

contains at least 25 gallons of oil; and 

(4) After December 31, 1964— 
(i) It is powered by a type and model 

engine as set forth in appendix C of 
this part, when certificated at a max-
imum gross takeoff weight greater 
than 45,000 pounds; and 

(ii) It complies with the special air-

worthiness requirement set forth in 
§§ 121.213 through 121.287 of this part or 
in appendix C of this part. 

(e) 

Commuter category airplanes. 

Ex-

cept as provided in paragraph (f) of this 
section, no certificate holder may oper-
ate under this part a nontransport cat-
egory airplane type certificated after 
December 31, 1964, and before March 30, 
1995, unless it meets the applicable re-
quirements of § 121.173 (a), (b), (d), and 
(e), and was type certificated in the 
commuter category. 

(f) 

Other nontransport category air-

planes. 

No certificate holder may oper-

ate under this part a nontransport cat-
egory airplane type certificated after 
December 31, 1964, unless it meets the 
applicable requirements of § 121.173 (a), 
(b), (d), and (e), was manufactured be-
fore March 20, 1997, and meets one of 
the following: 

background image

95 

Federal Aviation Administration, DOT 

§ 121.161 

(1) Until December 20, 2010: 
(i) The airplane was type certificated 

in the normal category before July 1, 
1970, and meets special conditions 
issued by the Administrator for air-
planes intended for use in operations 
under part 135 of this chapter. 

(ii) The airplane was type certifi-

cated in the normal category before 
July 19, 1970, and meets the additional 
airworthiness standards in SFAR No. 
23, 14 CFR part 23. 

(iii) The airplane was type certifi-

cated in the normal category and 
meets the additional airworthiness 
standards in appendix A of part 135 of 
this chapter. 

(iv) The airplane was type certifi-

cated in the normal category and com-
plies with either section 1.(a) or 1.(b) of 
SFAR No. 41 of 14 CFR part 21. 

(2) The airplane was type certificated 

in the normal category, meets the ad-
ditional requirements described in 
paragraphs (f)(1)(i) through (f)(1)(iv) of 
this section, and meets the perform-
ance requirements in appendix K of 
this part. 

(g) 

Certain newly manufactured air-

planes. 

No certificate holder may oper-

ate an airplane under this part that 
was type certificated as described in 
paragraphs (f)(1)(i) through (f)(1)(iv) of 
this section and that was manufac-
tured after March 20, 1997, unless it 
meets the performance requirements in 
appendix K of this part. 

(h) 

Newly type certificated airplanes. 

No person may operate under this part 
an airplane for which the application 
for a type certificate is submitted after 
March 29, 1995, unless the airplane is 
type certificated under part 25 of this 
chapter. 

[Doc. No. 6258, 29 FR 19197, Dec. 31, 1964, as 
amended by Amdt. 121–251, 60 FR 65927, Dec. 
20, 1995; Amdt. 121–256, 61 FR 30434, June 14, 
1996] 

§ 121.159 Single-engine airplanes pro-

hibited. 

No certificate holder may operate a 

single-engine airplane under this part. 

[Doc. No. 28154, 60 FR 65927, Dec. 20, 1995] 

§ 121.161 Airplane limitations: Type of 

route. 

(a) Except as provided in paragraph 

(e) of this section, unless approved by 

the Administrator in accordance with 
Appendix P of this part and authorized 
in the certificate holder’s operations 
specifications, no certificate holder 
may operate a turbine-engine-powered 
airplane over a route that contains a 
point— 

(1) Farther than a flying time from 

an Adequate Airport (at a one-engine- 
inoperative cruise speed under stand-
ard conditions in still air) of 60 min-
utes for a two-engine airplane or 180 
minutes for a passenger-carrying air-
plane with more than two engines; 

(2) Within the North Polar Area; or 
(3) Within the South Polar Area. 
(b) Except as provided in paragraph 

(c) of this section, no certificate holder 
may operate a land airplane (other 
than a DC–3, C–46, CV–240, CV–340, CV– 
440, CV–580, CV–600, CV–640, or Martin 
404) in an extended overwater operation 
unless it is certificated or approved as 
adequate for ditching under the ditch-
ing provisions of part 25 of this chap-
ter. 

(c) Until December 20, 2010, a certifi-

cate holder may operate, in an ex-
tended overwater operation, a non-
transport category land airplane type 
certificated after December 31, 1964, 
that was not certificated or approved 
as adequate for ditching under the 
ditching provisions of part 25 of this 
chapter. 

(d) Unless authorized by the Adminis-

trator based on the character of the 
terrain, the kind of operation, or the 
performance of the airplane to be used, 
no certificate holder may operate a re-
ciprocating-engine-powered airplane 
over a route that contains a point far-
ther than 60 minutes flying time (at a 
one-engine-inoperative cruise speed 
under standard conditions in still air) 
from an Adequate Airport. 

(e) Operators of turbine-engine pow-

ered airplanes with more than two en-
gines do not need to meet the require-
ments of paragraph (a)(1) of this sec-
tion until February 15, 2008. 

[Doc. No. 7329, 31 FR 13078, Oct. 8, 1966, as 
amended by Amdt. 121–162, 45 FR 46739, July 
10, 1980; Amdt. 121–251, 60 FR 65927, Dec. 20, 
1995; Amdt. 121–329, 72 FR 1879, Jan. 16, 2007] 

background image

96 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.162 

§ 121.162 ETOPS Type Design Ap-

proval Basis. 

Except for a passenger-carrying air-

plane with more than two engines man-
ufactured prior to February 17, 2015 and 
except for a two-engine airplane that, 
when used in ETOPS, is only used for 
ETOPS of 75 minutes or less, no certifi-
cate holder may conduct ETOPS unless 
the airplane has been type design ap-
proved for ETOPS and each airplane 
used in ETOPS complies with its CMP 
document as follows: 

(a) For a two-engine airplane, that is 

of the same model airplane-engine 
combination that received FAA ap-
proval for ETOPS up to 180 minutes 
prior to February 15, 2007, the CMP 
document for that model airplane-en-
gine combination in effect on February 
14, 2007. 

(b) For a two-engine airplane, that is 

not of the same model airplane-engine 
combination that received FAA ap-
proval for ETOPS up to 180 minutes be-
fore February 15, 2007, the CMP docu-
ment for that new model airplane-en-
gine combination issued in accordance 
with § 25.3(b)(1) of this chapter. 

(c) For a two-engine airplane ap-

proved for ETOPS beyond 180 minutes, 
the CMP document for that model air-
plane-engine combination issued in ac-
cordance with § 25.3(b)(2) of this chap-
ter. 

(d) For an airplane with more than 2 

engines manufactured on or after Feb-
ruary 17, 2015, the CMP document for 
that model airplane-engine combina-
tion issued in accordance with § 25.3(c) 
of this chapter. 

[Doc. No. FAA–2002–6717, 72 FR 1879, Jan. 16, 
2007] 

§ 121.163 Aircraft proving tests. 

(a) 

Initial airplane proving tests. 

No 

person may operate an airplane not be-
fore proven for use in a kind of oper-
ation under this part or part 135 of this 
chapter unless an airplane of that type 
has had, in addition to the airplane 
certification tests, at least 100 hours of 
proving tests acceptable to the Admin-
istrator, including a representative 
number of flights into en route air-
ports. The requirement for at least 100 
hours of proving tests may be reduced 
by the Administrator if the Adminis-

trator determines that a satisfactory 
level of proficiency has been dem-
onstrated to justify the reduction. At 
least 10 hours of proving flights must 
be flown at night; these tests are irre-
ducible. 

(b) 

Proving tests for kinds of operations. 

Unless otherwise authorized by the Ad-
ministrator, for each type of airplane, 
a certificate holder must conduct at 
least 50 hours of proving tests accept-
able to the Administrator for each kind 
of operation it intends to conduct, in-
cluding a representative number of 
flights into en route airports. 

(c) 

Proving tests for materially altered 

airplanes. 

Unless otherwise authorized 

by the Administrator, for each type of 
airplane that is materially altered in 
design, a certificate holder must con-
duct at least 50 hours of proving tests 
acceptable to the Administrator for 
each kind of operation it intends to 
conduct with that airplane, including a 
representative number of flights into 
en route airports. 

(d) 

Definition of materially altered. 

For 

the purposes of paragraph (c) of this 
section, a type of airplane is considered 
to be materially altered in design if the 
alteration includes— 

(1) The installation of powerplants 

other than those of a type similar to 
those with which it is certificated; or 

(2) Alterations to the aircraft or its 

components that materially affect 
flight characteristics. 

(e) No certificate holder may carry 

passengers in an aircraft during prov-
ing tests, except for those needed to 
make the test and those designated by 
the Administrator. However, it may 
carry mail, express, or other cargo, 
when approved. 

[Doc. No. 6258, 29 FR 19197, Dec. 31, 1964, as 
amended by Amdt. 121–42, 33 FR 10330, July 
19, 1968; 34 FR 13468, Aug. 21, 1969; Amdt. 121– 
162, 45 FR 46739, July 10, 1980; Amdt. 121–251, 
60 FR 65927, Dec. 20, 1995] 

Subpart I—Airplane Performance 

Operating Limitations 

S

OURCE

: Docket No. 6258, 29 FR 19198, Dec. 

31, 1964; 30 FR 130, Jan. 7, 1965, unless other-
wise noted. 

E

DITORIAL

N

OTE

: Nomenclature changes to 

subpart I of part 121 appear at 60 FR 65928, 
Dec. 20, 1995. 

background image

97 

Federal Aviation Administration, DOT 

§ 121.173 

§ 121.171 Applicability. 

(a) This subpart prescribes airplane 

performance operating limitations for 
all certificate holders. 

(b) For purposes of this part, 

effective 

length of the runway 

for landing means 

the distance from the point at which 
the obstruction clearance plane associ-
ated with the approach end of the run-
way intersects the centerline of the 
runway to the far end thereof. 

(c) For the purposes of this subpart, 

obstruction clearance plane 

means a 

plane sloping upward from the runway 
at a slope of 1:20 to the horizontal, and 
tangent to or clearing all obstructions 
within a specified area surrounding the 
runway as shown in a profile view of 
that area. In the plan view, the center-
line of the specified area coincides with 
the centerline of the runway, beginning 
at the point where the obstruction 
clearance plane intersects the center-
line of the runway and proceeding to a 
point at least 1,500 feet from the begin-
ning point. Thereafter the centerline 
coincides with the takeoff path over 
the ground for the runway (in the case 
of takeoffs) or with the instrument ap-
proach counterpart (for landings), or, 
where the applicable one of these paths 
has not been established, it proceeds 
consistent with turns of at least 4,000 
foot radius until a point is reached be-
yond which the obstruction clearance 
plane clears all obstructions. This area 
extends laterally 200 feet on each side 
of the centerline at the point where the 
obstruction clearance plane intersects 
the runway and continues at this width 
to the end of the runway; then it in-
creases uniformly to 500 feet on each 
side of the centerline at a point 1,500 
feet from the intersection of the ob-
struction clearance plane with the run-
way; thereafter it extends laterally 500 
feet on each side of the centerline. 

[Doc. No. 6258, 29 FR 19198, Dec. 31, 1964, as 
amended by Amdt. 121–132, 41 FR 55475, Dec. 
20, 1976] 

§ 121.173 General. 

(a) Except as provided in paragraph 

(c) of this section, each certificate 
holder operating a reciprocating-en-
gine-powered airplane shall comply 
with §§ 121.175 through 121.187. 

(b) Except as provided in paragraph 

(c) of this section, each certificate 
holder operating a turbine-engine-pow-
ered airplane shall comply with the ap-
plicable provisions of §§ 121.189 through 
121.197, except that when it operates— 

(1) A turbo-propeller-powered air-

plane type certificated after August 29, 
1959, but previously type certificated 
with the same number of reciprocating 
engines, the certificate holder may 
comply with §§ 121.175 through 121.187; 
or 

(2) Until December 20, 2010, a turbo- 

propeller-powered airplane described in 
§ 121.157(f), the certificate holder may 
comply with the applicable perform-
ance requirements of appendix K of 
this part. 

(c) Each certificate holder operating 

a large nontransport category airplane 
type certificated before January 1, 1965, 
shall comply with §§ 121.199 through 
121.205 and any determination of com-
pliance must be based only on approved 
performance data. 

(d) The performance data in the Air-

plane Flight Manual applies in deter-
mining compliance with §§ 121.175 
through 121.197. Where conditions are 
different from those on which the per-
formance data is based, compliance is 
determined by interpolation or by com-
puting the effects of changes in the 
specific variables if the results of the 
interpolation or computations are sub-
stantially as accurate as the results of 
direct tests. 

(e) Except as provided in paragraph 

(c) of this section, no person may take 
off a reciprocating-engine-powered air-
plane at a weight that is more than the 
allowable weight for the runway being 
used (determined under the runway 
takeoff limitations of the operating 
rules of 14 CFR part 121, subpart I) 
after taking into account the tempera-
ture operating correction factors in the 
applicable Airplane Flight Manual. 

(f) The Administrator may authorize 

in the operations specifications devi-
ations from the requirements in the 
subpart if special circumstances make 
a literal observance of a requirement 
unnecessary for safety. 

(g) The ten-mile width specified in 

§§ 121.179 through 121.183 may be re-
duced to five miles, for not more than 
20 miles, when operating VFR or where 

background image

98 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.175 

navigation facilities furnish reliable 
and accurate identification of high 
ground and obstructions located out-
side of five miles, but within ten miles, 
on each side of the intended track. 

[Doc. No. 6258, 29 FR 19198, Dec. 31, 1964, as 
amended by Amdt. 121–251, 60 FR 65928, Dec. 
20, 1995] 

§ 121.175 Airplanes: Reciprocating en-

gine-powered: Weight limitations. 

(a) No person may take off a recipro-

cating engine powered airplane from an 
airport located at an elevation outside 
of the range for which maximum take-
off weights have been determined for 
that airplane. 

(b) No person may take off a recipro-

cating engine powered airplane for an 
airport of intended destination that is 
located at an elevation outside of the 
range for which maximum landing 
weights have been determined for that 
airplane. 

(c) No person may specify, or have 

specified, an alternate airport that is 
located at an elevation outside of the 
range for which maximum landing 
weights have been determined for the 
reciprocating engine powered airplane 
concerned. 

(d) No person may take off a recipro-

cating engine powered airplane at a 
weight more than the maximum au-
thorized takeoff weight for the ele-
vation of the airport. 

(e) No person may take off a recipro-

cating engine powered airplane if its 
weight on arrival at the airport of des-
tination will be more than the max-
imum authorized landing weight for 
the elevation of that airport, allowing 
for normal consumption of fuel and oil 
en route. 

(f) This section does not apply to 

large nontransport category airplanes 
operated under § 121.173(c). 

[Doc. No. 6258, 29 FR 19198, Dec. 31, 1964, as 
amended by Amdt. 121–251, 60 FR 65928, Dec. 
20, 1995] 

§ 121.177 Airplanes: Reciprocating en-

gine-powered: Takeoff limitations. 

(a) No person operating a recipro-

cating engine powered airplane may 
takeoff that airplane unless it is pos-
sible— 

(1) To stop the airplane safely on the 

runway, as shown by the accelerate 

stop distance data, at any time during 
takeoff until reaching critical-engine 
failure speed; 

(2) If the critical engine fails at any 

time after the airplane reaches crit-
ical-engine failure speed 

V

1

, to con-

tinue the takeoff and reach a height of 
50 feet, as indicated by the takeoff path 
data, before passing over the end of the 
runway; and 

(3) To clear all obstacles either by at 

least 50 feet vertically (as shown by the 
takeoff path data) or 200 feet hori-
zontally within the airport boundaries 
and 300 feet horizontally beyond the 
boundaries, without banking before 
reaching a height of 50 feet (as shown 
by the takeoff path data) and there-
after without banking more than 15 de-
grees. 

(b) In applying this section, correc-

tions must be made for the effective 
runway gradient. To allow for wind ef-
fect, takeoff data based on still air may 
be corrected by taking into account 
not more than 50 percent of any re-
ported headwind component and not 
less than 150 percent of any reported 
tailwind component. 

(c) This section does not apply to 

large nontransport category airplanes 
operated under § 121.173(c). 

[Doc. No. 6258, 29 FR 19198, Dec. 31, 1964, as 
amended by Amdt. 121–159, 45 FR 41593, June 
19, 1980; Amdt. 121–251, 60 FR 65928, Dec. 20, 
1995] 

§ 121.179 Airplanes: Reciprocating en-

gine-powered: En route limitations: 
All engines operating. 

(a) No person operating a recipro-

cating engine powered airplane may 
take off that airplane at a weight, al-
lowing for normal consumption of fuel 
and oil, that does not allow a rate of 
climb (in feet per minute), with all en-
gines operating, of at least 6.90 

V

So

 

(that is, the number of feet per minute 
is obtained by multiplying the number 
of knots by 6.90) at an altitude of at 
least 1,000 feet above the highest 
ground or obstruction within ten miles 
of each side of the intended track. 

(b) This section does not apply to air-

planes certificated under part 4a of the 
Civil Air Regulations. 

background image

99 

Federal Aviation Administration, DOT 

§ 121.183 

(c) This section does not apply to 

large nontransport category airplanes 
operated under § 121.173(c). 

[Doc. No. 6258, 29 FR 19198, Dec. 31, 1964, as 
amended by Amdt. 121–251, 60 FR 65928, Dec. 
20, 1995] 

§ 121.181 Airplanes: Reciprocating en-

gine-powered: En route limitations: 

One engine inoperative. 

(a) Except as provided in paragraph 

(b) of this section, no person operating 
a reciprocating engine powered air-
plane may take off that airplane at a 
weight, allowing for normal consump-
tion of fuel and oil, that does not allow 
a rate of climb (in feet per minute), 
with one engine inoperative, of at least 

(0.079–0.106/N) V

so

(where 

is the number of engines in-

stalled and 

V

So

is expressed in knots) at 

an altitude of at least 1,000 feet above 
the highest ground or obstruction 
within 10 miles of each side of the in-
tended track. However, for the pur-
poses of this paragraph the rate of 
climb for airplanes certificated under 
part 4a of the Civil Air Regulations is 
0.026 V

so

2. 

(b) In place of the requirements of 

paragraph (a) of this section, a person 
may, under an approved procedure, op-
erate a reciprocating engine powered 
airplane, at an all-engines-operating 
altitude that allows the airplane to 
continue, after an engine failure, to an 
alternate airport where a landing can 
be made in accordance with § 121.187, al-
lowing for normal consumption of fuel 
and oil. After the assumed failure, the 
flight path must clear the ground and 
any obstruction within five miles on 
each side of the intended track by at 
least 2,000 feet. 

(c) If an approved procedure under 

paragraph (b) of this section is used, 
the certificate holder shall comply 
with the following: 

(1) The rate of climb (as prescribed in 

the Airplane Flight Manual for the ap-
propriate weight and altitude) used in 
calculating the airplane’s flight path 
shall be diminished by an amount, in 
feet per minute, equal to 

(0.079–0.106/N) V

so

(when 

is the number of engines in-

stalled and 

V

So

is expressed in knots) 

for airplanes certificated under part 25 
of this chapter and by 0.026 V

so

2 for air-

planes certificated under part 4a of the 
Civil Air Regulations. 

(2) The all-engines-operating altitude 

shall be sufficient so that in the event 
the critical engine becomes inoperative 
at any point along the route, the flight 
will be able to proceed to a predeter-
mined alternate airport by use of this 
procedure. In determining the takeoff 
weight, the airplane is assumed to pass 
over the critical obstruction following 
engine failure at a point no closer to 
the critical obstruction than the near-
est approved radio navigational fix, un-
less the Administrator approves a pro-
cedure established on a different basis 
upon finding that adequate operational 
safeguards exist. 

(3) The airplane must meet the provi-

sions of paragraph (a) of this section at 
1,000 feet above the airport used as an 
alternate in this procedure. 

(4) The procedure must include an ap-

proved method of accounting for winds 
and temperatures that would otherwise 
adversely affect the flight path. 

(5) In complying with this procedure 

fuel jettisoning is allowed if the certifi-
cate holder shows that it has an ade-
quate training program, that proper in-
structions are given to the flight crew, 
and all other precautions are taken to 
insure a safe procedure. 

(6) The certificate holder shall speci-

fy in the dispatch or flight release an 
alternate airport that meets the re-
quirements of § 121.625. 

(d) This section does not apply to 

large nontransport category airplanes 
operated under § 121.173(c). 

[Doc. No. 6258, 29 FR 19198, Dec. 31, 1964; 30 
FR 130, Jan. 7, 1965, as amended by Amdt. 
121–251, 60 FR 65928, Dec. 20, 1995] 

§ 121.183 Part 25 airplanes with four 

or more engines: Reciprocating en-

gine powered: En route limitations: 

Two engines inoperative. 

(a) No person may operate an air-

plane certificated under part 25 and 
having four or more engines unless— 

(1) There is no place along the in-

tended track that is more than 90 min-
utes (with all engines operating at 
cruising power) from an airport that 
meets the requirements of § 121.187; or 

background image

100 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.185 

(2) It is operated at a weight allowing 

the airplane, with the two critical en-
gines inoperative, to climb at 0.013 V

so

feet per minute (that is, the number of 
feet per minute is obtained by multi-
plying the number of knots squared by 
0.013) at an altitude of 1,000 feet above 
the highest ground or obstruction 
within 10 miles on each side of the in-
tended track, or at an altitude of 5,000 
feet, whichever is higher. 

(b) For the purposes of paragraph 

(a)(2) of this section, it is assumed 
that— 

(1) The two engines fail at the point 

that is most critical with respect to 
the takeoff weight: 

(2) Consumption of fuel and oil is nor-

mal with all engines operating up to 
the point where the two engines fail 
and with two engines operating beyond 
that point; 

(3) Where the engines are assumed to 

fail at an altitude above the prescribed 
minimum altitude, compliance with 
the prescribed rate of climb at the pre-
scribed minimum altitude need not be 
shown during the descent from the 
cruising altitude to the prescribed min-
imum altitude, if those requirements 
can be met once the prescribed min-
imum altitude is reached, and assum-
ing descent to be along a net flight 
path and the rate of descent to be 0.013 
V

so

2 greater than the rate in the ap-

proved performance data; and 

(4) If fuel jettisoning is provided, the 

airplane’s weight at the point where 
the two engines fail is considered to be 
not less than that which would include 
enough fuel to proceed to an airport 
meeting the requirements of § 121.187 
and to arrive at an altitude of at least 
1,000 feet directly over that airport. 

[Doc. No. 6258, 29 FR 19198, Dec. 31, 1964; 30 
FR 130, Jan. 7, 1965, as amended by Amdt. 
121–251, 60 FR 65928, Dec. 20, 1995] 

§ 121.185 Airplanes: Reciprocating en-

gine-powered: Landing limitations: 

Destination airport. 

(a) Except as provided in paragraph 

(b) of this section no person operating 
a reciprocating engine powered air-
plane may take off that airplane, un-
less its weight on arrival, allowing for 
normal consumption of fuel and oil in 
flight, would allow a full stop landing 
at the intended destination within 60 

percent of the effective length of each 
runway described below from a point 50 
feet directly above the intersection of 
the obstruction clearance plane and 
the runway. For the purposes of deter-
mining the allowable landing weight at 
the destination airport the following is 
assumed: 

(1) The airplane is landed on the most 

favorable runway and in the most fa-
vorable direction in still air. 

(2) The airplane is landed on the most 

suitable runway considering the prob-
able wind velocity and direction (fore-
cast for the expected time of arrival), 
the ground handling characteristics of 
the type of airplane, and other condi-
tions such as landing aids and terrain, 
and allowing for the effect of the land-
ing path and roll of not more than 50 
percent of the headwind component or 
not less than 150 percent of the tail-
wind component. 

(b) An airplane that would be prohib-

ited from being taken off because it 
could not meet the requirements of 
paragraph (a)(2) of this section may be 
taken off if an alternate airport is 
specified that meets all of the require-
ments of this section except that the 
airplane can accomplish a full stop 
landing within 70 percent of the effec-
tive length of the runway. 

(c) This section does not apply to 

large nontransport category airplanes 
operated under § 121.173(c). 

[Doc. No. 6258, 29 FR 19198, Dec. 31, 1964; 30 
FR 130, Jan. 7, 1965, as amended by Amdt. 
121–251, 60 FR 65928, Dec. 20, 1995] 

§ 121.187 Airplanes: Reciprocating en-

gine-powered: Landing limitations: 
Alternate airport. 

(a) No person may list an airport as 

an alternate airport in a dispatch or 
flight release unless the airplane (at 
the weight anticipated at the time of 
arrival at the airport), based on the as-
sumptions in § 121.185, can be brought 
to a full stop landing, within 70 percent 
of the effective length of the runway. 

(b) This section does not apply to 

large nontransport category airplanes 
operated under § 121.173(c). 

[Doc. No. 6258, 29 FR 19198, Dec. 31, 1964; 30 
FR 130, Jan. 7, 1965, as amended by Amdt. 
121–251, 60 FR 65928, Dec. 20, 1995] 

background image

101 

Federal Aviation Administration, DOT 

§ 121.191 

§ 121.189 Airplanes: Turbine engine 

powered: Takeoff limitations. 

(a) No person operating a turbine en-

gine powered airplane may take off 
that airplane at a weight greater than 
that listed in the Airplane Flight Man-
ual for the elevation of the airport and 
for the ambient temperature existing 
at takeoff. 

(b) No person operating a turbine en-

gine powered airplane certificated after 
August 26, 1957, but before August 30, 
1959 (SR422, 422A), may take off that 
airplane at a weight greater than that 
listed in the Airplane Flight Manual 
for the minimum distances required for 
takeoff. In the case of an airplane cer-
tificated after September 30, 1958 
(SR422A, 422B), the takeoff distance 
may include a clearway distance but 
the clearway distance included may 
not be greater than 

1

2

of the takeoff 

run. 

(c) No person operating a turbine en-

gine powered airplane certificated after 
August 29, 1959 (SR422B), may take off 
that airplane at a weight greater than 
that listed in the Airplane Flight Man-
ual at which compliance with the fol-
lowing may be shown: 

(1) The accelerate-stop distance must 

not exceed the length of the runway 
plus the length of any stopway. 

(2) The takeoff distance must not ex-

ceed the length of the runway plus the 
length of any clearway except that the 
length of any clearway included must 
not be greater than one-half the length 
of the runway. 

(3) The takeoff run must not be 

greater than the length of the runway. 

(d) No person operating a turbine en-

gine powered airplane may take off 
that airplane at a weight greater than 
that listed in the Airplane Flight Man-
ual— 

(1) In the case of an airplane certifi-

cated after August 26, 1957, but before 
October 1, 1958 (SR422), that allows a 
takeoff path that clears all obstacles 
either by at least (35 + 0.01D) feet 
vertically (D is the distance along the 
intended flight path from the end of 
the runway in feet), or by at least 200 
feet horizontally within the airport 
boundaries and by at least 300 feet 
horizontally after passing the bound-
aries; or 

(2) In the case of an airplane certifi-

cated after September 30, 1958 (SR 
422A, 422B), that allows a net takeoff 
flight path that clears all obstacles ei-
ther by a height of at least 35 feet 
vertically, or by at least 200 feet hori-
zontally within the airport boundaries 
and by at least 300 feet horizontally 
after passing the boundaries. 

(e) In determining maximum 

weights, minimum distances, and flight 
paths under paragraphs (a) through (d) 
of this section, correction must be 
made for the runway to be used, the 
elevation of the airport, the effective 
runway gradient, the ambient tempera-
ture and wind component at the time 
of takeoff, and, if operating limitations 
exist for the minimum distances re-
quired for takeoff from wet runways, 
the runway surface condition (dry or 
wet). Wet runway distances associated 
with grooved or porous friction course 
runways, if provided in the Airplane 
Flight Manual, may be used only for 
runways that are grooved or treated 
with a porous friction course (PFC) 
overlay, and that the operator deter-
mines are designed, constructed, and 
maintained in a manner acceptable to 
the Administrator. 

(f) For the purposes of this section, it 

is assumed that the airplane is not 
banked before reaching a height of 50 
feet, as shown by the takeoff path or 
net takeoff flight path data (as appro-
priate) in the Airplane Flight Manual, 
and thereafter that the maximum bank 
is not more than 15 degrees. 

(g) For the purposes of this section 

the terms, 

takeoff distance, takeoff run, 

net takeoff flight path 

and 

takeoff path 

have the same meanings as set forth in 
the rules under which the airplane was 
certificated. 

[Doc. No. 6258, 29 FR 19198, Dec. 31, 1964, as 
amended by Amdt. 121–268, 63 FR 8321, Feb. 
18, 1998] 

§ 121.191 Airplanes: Turbine engine 

powered: En route limitations: One 

engine inoperative. 

(a) No person operating a turbine en-

gine powered airplane may take off 
that airplane at a weight, allowing for 
normal consumption of fuel and oil, 
that is greater than that which (under 
the approved, one engine inoperative, 
en route net flight path data in the 

background image

102 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.193 

Airplane Flight Manual for that air-
plane) will allow compliance with para-
graph (a) (1) or (2) of this section, based 
on the ambient temperatures expected 
en route: 

(1) There is a positive slope at an al-

titude of at least 1,000 feet above all 
terrain and obstructions within five 
statute miles on each side of the in-
tended track, and, in addition, if that 
airplane was certificated after August 
29, 1959 (SR 422B) there is a positive 
slope at 1,500 feet above the airport 
where the airplane is assumed to land 
after an engine fails. 

(2) The net flight path allows the air-

plane to continue flight from the cruis-
ing altitude to an airport where a land-
ing can be made under § 121.197, clear-
ing all terrain and obstructions within 
five statute miles of the intended track 
by at least 2,000 feet vertically and 
with a positive slope at 1,000 feet above 
the airport where the airplane lands 
after an engine fails, or, if that air-
plane was certificated after September 
30, 1958 (SR 422A, 422B), with a positive 
slope at 1,500 feet above the airport 
where the airplane lands after an en-
gine fails. 

(b) For the purposes of paragraph 

(a)(2) of this section, it is assumed 
that— 

(1) The engine fails at the most crit-

ical point en route; 

(2) The airplane passes over the crit-

ical obstruction, after engine failure at 
a point that is no closer to the obstruc-
tion than the nearest approved radio 
navigation fix, unless the Adminis-
trator authorizes a different procedure 
based on adequate operational safe-
guards; 

(3) An approved method is used to 

allow for adverse winds: 

(4) Fuel jettisoning will be allowed if 

the certificate holder shows that the 
crew is properly instructed, that the 
training program is adequate, and that 
all other precautions are taken to in-
sure a safe procedure; 

(5) The alternate airport is specified 

in the dispatch or flight release and 
meets the prescribed weather mini-
mums; and 

(6) The consumption of fuel and oil 

after engine failure is the same as the 
consumption that is allowed for in the 

approved net flight path data in the 
Airplane Flight Manual. 

[Doc. No. 6258, 29 FR 19198, Dec. 31, 1964; 30 
FR 130, Jan. 7, 1965, as amended by Amdt. 
121–143, 43 FR 22641, May 25, 1978] 

§ 121.193 Airplanes: Turbine engine 

powered: En route limitations: Two 

engines inoperative. 

(a) 

Airplanes certificated after August 

26, 1957, but before October 1, 1958 

(SR 

422). No person may operate a turbine 
engine powered airplane along an in-
tended route unless he complies with 
either of the following: 

(1) There is no place along the in-

tended track that is more than 90 min-
utes (with all engines operating at 
cruising power) from an airport that 
meets the requirements of § 121.197. 

(2) Its weight, according to the two- 

engine-inoperative, en route, net flight 
path data in the Airplane Flight Man-
ual, allows the airplane to fly from the 
point where the two engines are as-
sumed to fail simultaneously to an air-
port that meets the requirements of 
§ 121.197, with a net flight path (consid-
ering the ambient temperature antici-
pated along the track) having a posi-
tive slope at an altitude of at least 
1,000 feet above all terrain and obstruc-
tions within five miles on each side of 
the intended track, or at an altitude of 
5,000 feet, whichever is higher. 

For the purposes of paragraph (a)(2) of 
this section, it is assumed that the two 
engines fail at the most critical point 
en route, that if fuel jettisoning is pro-
vided, the airplane’s weight at the 
point where the engines fail includes 
enough fuel to continue to the airport 
and to arrive at an altitude of at least 
1,000 feet directly over the airport, and 
that the fuel and oil consumption after 
engine failure is the same as the con-
sumption allowed for in the net flight 
path data in the Airplane Flight Man-
ual. 

(b) 

Aircraft certificated after September 

30, 1958, but before August 30, 1959 

(SR 

422A). No person may operate a turbine 
engine powered airplane along an in-
tended route unless he complies with 
either of the following: 

(1) There is no place along the in-

tended track that is more than 90 min-
utes (with all engines operating at 

background image

103 

Federal Aviation Administration, DOT 

§ 121.195 

cruising power) from an airport that 
meets the requirements of § 121.197. 

(2) Its weight, according to the two- 

engine-inoperative, en route, net flight 
path data in the Airplane Flight Man-
ual, allows the airplane to fly from the 
point where the two engines are as-
sumed to fail simultaneously to an air-
port that meets the requirements of 
§ 121.197, with a net flight path (consid-
ering the ambient temperatures antici-
pated along the track) having a posi-
tive slope at an altitude of at least 
1,000 feet above all terrain and obstruc-
tions within 5 miles on each side of the 
intended track, or at an altitude of 
2,000 feet, whichever is higher. 

For the purposes of paragraph (b)(2) of 
this section, it is assumed that the two 
engines fail at the most critical point 
en route, that the airplane’s weight at 
the point where the engines fail in-
cludes enough fuel to continue to the 
airport, to arrive at an altitude of at 
least 1,500 feet directly over the air-
port, and thereafter to fly for 15 min-
utes at cruise power or thrust, or both, 
and that the consumption of fuel and 
oil after engine failure is the same as 
the consumption allowed for in the net 
flight path data in the Airplane Flight 
Manual. 

(c) 

Aircraft certificated after August 29, 

1959 

(SR 422B). No person may operate 

a turbine engine powered airplane 
along an intended route unless he com-
plies with either of the following: 

(1) There is no place along the in-

tended track that is more than 90 min-
utes (with all engines operating at 
cruising power) from an airport that 
meets the requirements of § 121.197. 

(2) Its weight, according to the two- 

engine inoperative, en route, net flight 
path data in the Airplane Flight Man-
ual, allows the airplane to fly from the 
point where the two engines are as-
sumed to fail simultaneously to an air-
port that meets the requirements of 
§ 121.197, with the net flight path (con-
sidering the ambient temperatures an-
ticipated along the track) clearing 
vertically by at least 2,000 feet all ter-
rain and obstructions within five stat-
ute miles (4.34 nautical miles) on each 
side of the intended track. For the pur-
poses of this subparagraph, it is as-
sumed that— 

(i) The two engines fail at the most 

critical point en route; 

(ii) The net flight path has a positive 

slope at 1,500 feet above the airport 
where the landing is assumed to be 
made after the engines fail; 

(iii) Fuel jettisoning will be approved 

if the certificate holder shows that the 
crew is properly instructed, that the 
training program is adequate, and that 
all other precautions are taken to en-
sure a safe procedure; 

(iv) The airplane’s weight at the 

point where the two engines are as-
sumed to fail provides enough fuel to 
continue to the airport, to arrive at an 
altitude of at least 1,500 feet directly 
over the airport, and thereafter to fly 
for 15 minutes at cruise power or 
thrust, or both; and 

(v) The consumption of fuel and oil 

after the engine failure is the same as 
the consumption that is allowed for in 
the net flight path data in the Airplane 
Flight Manual. 

§ 121.195 Airplanes: Turbine engine 

powered: Landing limitations: Des-
tination airports. 

(a) No person operating a turbine en-

gine powered airplane may take off 
that airplane at such a weight that (al-
lowing for normal consumption of fuel 
and oil in flight to the destination or 
alternate airport) the weight of the air-
plane on arrival would exceed the land-
ing weight set forth in the Airplane 
Flight Manual for the elevation of the 
destination or alternate airport and 
the ambient temperature anticipated 
at the time of landing. 

(b) Except as provided in paragraph 

(c), (d), or (e) of this section, no person 
operating a turbine engine powered air-
plane may take off that airplane unless 
its weight on arrival, allowing for nor-
mal consumption of fuel and oil in 
flight (in accordance with the landing 
distance set forth in the Airplane 
Flight Manual for the elevation of the 
destination airport and the wind condi-
tions anticipated there at the time of 
landing), would allow a full stop land-
ing at the intended destination airport 
within 60 percent of the effective 
length of each runway described below 
from a point 50 feet above the intersec-
tion of the obstruction clearance plane 

background image

104 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.197 

and the runway. For the purpose of de-
termining the allowable landing weight 
at the destination airport the following 
is assumed: 

(1) The airplane is landed on the most 

favorable runway and in the most fa-
vorable direction, in still air. 

(2) The airplane is landed on the most 

suitable runway considering the prob-
able wind velocity and direction and 
the ground handling characteristics of 
the airplane, and considering other 
conditions such as landing aids and ter-
rain. 

(c) A turbopropeller powered airplane 

that would be prohibited from being 
taken off because it could not meet the 
requirements of paragraph (b)(2) of this 
section, may be taken off if an alter-
nate airport is specified that meets all 
the requirements of this section except 
that the airplane can accomplish a full 
stop landing within 70 percent of the 
effective length of the runway. 

(d) Unless, based on a showing of ac-

tual operating landing techniques on 
wet runways, a shorter landing dis-
tance (but never less than that re-
quired by paragraph (b) of this section) 
has been approved for a specific type 
and model airplane and included in the 
Airplane Flight Manual, no person may 
takeoff a turbojet powered airplane 
when the appropriate weather reports 
and forecasts, or a combination there-
of, indicate that the runways at the 
destination airport may be wet or slip-
pery at the estimated time of arrival 
unless the effective runway length at 
the destination airport is at least 115 
percent of the runway length required 
under paragraph (b) of this section. 

(e) A turbojet powered airplane that 

would be prohibited from being taken 
off because it could not meet the re-
quirements of paragraph (b)(2) of this 
section may be taken off if an alter-
nate airport is specified that meets all 
the requirements of paragraph (b) of 
this section. 

[Doc. No. 6258, 29 FR 19198, Dec. 31, 1964, as 
amended by Amdt. 121–9, 30 FR 8572, July 7, 
1965] 

§ 121.197 Airplanes: Turbine engine 

powered: Landing limitations: Al-

ternate airports. 

No person may list an airport as an 

alternate airport in a dispatch or flight 

release for a turbine engine powered 
airplane unless (based on the assump-
tions in § 121.195 (b)) that airplane at 
the weight anticipated at the time of 
arrival can be brought to a full stop 
landing within 70 percent of the effec-
tive length of the runway for turbo-
propeller powered airplanes and 60 per-
cent of the effective length of the run-
way for turbojet powered airplanes, 
from a point 50 feet above the intersec-
tion of the obstruction clearance plane 
and the runway. In the case of an alter-
nate airport for departure, as provided 
in § 121.617, allowance may be made for 
fuel jettisoning in addition to normal 
consumption of fuel and oil when deter-
mining the weight anticipated at the 
time of arrival. 

[Doc. No. 6258, 29 FR 19198, Dec. 31, 1964, as 
amended by Amdt. 121–9, 30 FR 8572, July 7, 
1965; Amdt. 121–179, 47 FR 33390, Aug. 2, 1982] 

§ 121.198 Cargo service airplanes: In-

creased zero fuel and landing 

weights. 

(a) Notwithstanding the applicable 

structural provisions of the airworthi-
ness regulations but subject to para-
graphs (b) through (g) of this section, a 
certificate holder may operate (for 
cargo service only) any of the following 
airplanes (certificated under part 4b of 
the Civil Air Regulations effective be-
fore March 13, 1956) at increased zero 
fuel and landing weights— 

(1) DC–6A, DC–6B, DC–7B, and DC–7C; 

and 

(2) L1049B, C, D, E, F, G, and H, and 

the L1649A when modified in accord-
ance with supplemental type certifi-
cate SA 4–1402. 

(b) The zero fuel weight (maximum 

weight of the airplane with no dispos-
able fuel and oil) and the structural 
landing weight may be increased be-
yond the maximum approved in full 
compliance with applicable regulations 
only if the Administrator finds that— 

(1) The increase is not likely to re-

duce seriously the structural strength; 

(2) The probability of sudden fatigue 

failure is not noticeably increased; 

(3) The flutter, deformation, and vi-

bration characteristics do not fall 
below those required by applicable reg-
ulations; and 

(4) All other applicable weight limi-

tations will be met. 

background image

105 

Federal Aviation Administration, DOT 

§ 121.201 

(c) No zero fuel weight may be in-

creased by more than five percent, and 
the increase in the structural landing 
weight may not exceed the amount, in 
pounds, of the increase in zero fuel 
weight. 

(d) Each airplane must be inspected 

in accordance with the approved spe-
cial inspection procedures, for oper-
ations at increased weights, estab-
lished and issued by the manufacturer 
of the type of airplane. 

(e) Each airplane operated under this 

section must be operated in accordance 
with the passenger-carrying perform-
ance operating limitations prescribed 
in this part. 

(f) The Airplane Flight Manual for 

each airplane operated under this sec-
tion must be appropriately revised to 
include the operating limitations and 
information needed for operation at 
the increased weights. 

(g) Except as provided for the car-

rying of persons under § 121.583 each 
airplane operated at an increased 
weight under this section must, before 
it is used in passenger service, be in-
spected under the special inspection 
procedures for return to passenger 
service established and issued by the 
manufacturer and approved by the Ad-
ministrator. 

§ 121.199 Nontransport category air-

planes: Takeoff limitations. 

(a) No person operating a non-

transport category airplane may take 
off that airplane at a weight greater 
than the weight that would allow the 
airplane to be brought to a safe stop 
within the effective length of the run-
way, from any point during the takeoff 
before reaching 105 percent of min-
imum control speed (the minimum 
speed at which an airplane can be safe-
ly controlled in flight after an engine 
becomes inoperative) or 115 percent of 
the power off stalling speed in the 
takeoff configuration, whichever is 
greater. 

(b) For the purposes of this section— 
(1) It may be assumed that takeoff 

power is used on all engines during the 
acceleration; 

(2) Not more than 50 percent of the 

reported headwind component, or not 
less than 150 percent of the reported 

tailwind component, may be taken into 
account; 

(3) The average runway gradient (the 

difference between the elevations of 
the endpoints of the runway divided by 
the total length) must be considered if 
it is more than one-half of 1 percent; 

(4) It is assumed that the airplane is 

operating in standard atmosphere; and 

(5) The 

effective length of the runway 

for takeoff means the distance from 
the end of the runway at which the 
takeoff is started to a point at which 
the obstruction clearance plane associ-
ated with the other end of the runway 
intersects the runway centerline. 

[Doc. No. 6258, 29 FR 19198, Dec. 31, 1964, as 
amended by Amdt. 121–132, 41 FR 55475, Dec. 
20, 1976] 

§ 121.201 Nontransport category air-

planes: En route limitations: One 

engine inoperative. 

(a) Except as provided in paragraph 

(b) of this section, no person operating 
a nontransport category airplane may 
take off that airplane at a weight that 
does not allow a rate of climb of at 
least 50 feet a minute, with the critical 
engine inoperative, at an altitude of at 
least 1,000 feet above the highest ob-
struction within five miles on each side 
of the intended track, or 5,000 feet, 
whichever is higher. 

(b) Notwithstanding paragraph (a) of 

this section, if the Administrator finds 
that safe operations are not impaired, 
a person may operate the airplane at 
an altitude that allows the airplane, in 
case of engine failure, to clear all ob-
structions within 5 miles on each side 
of the intended track by 1,000 feet. If 
this procedure is used, the rate of de-
scent for the appropriate weight and 
altitude is assumed to be 50 feet a 
minute greater than the rate in the ap-
proved performance data. Before ap-
proving such a procedure, the Adminis-
trator considers the following for the 
route, route segment, or area con-
cerned: 

(1) The reliability of wind and weath-

er forecasting. 

(2) The location and kinds of naviga-

tion aids. 

(3) The prevailing weather condi-

tions, particularly the frequency and 
amount of turbulence normally en-
countered. 

background image

106 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.203 

(4) Terrain features. 
(5) Air traffic control problems. 
(6) Any other operational factors 

that affect the operation. 

(c) For the purposes of this section, it 

is assumed that— 

(1) The critical engine is inoperative; 
(2) The propeller of the inoperative 

engine is in the minimum drag posi-
tion; 

(3) The wing flaps and landing gear 

are in the most favorable position; 

(4) The operating engines are oper-

ating at the maximum continuous 
power available; 

(5) The airplane is operating in stand-

ard atmosphere; and 

(6) The weight of the airplane is pro-

gressively reduced by the anticipated 
consumption of fuel and oil. 

§ 121.203 Nontransport category air-

planes: Landing limitations: Des-
tination airport. 

(a) No person operating a non-

transport category airplane may take 
off that airplane at a weight that— 

(1) Allowing for anticipated consump-

tion of fuel and oil, is greater than the 
weight that would allow a full stop 
landing within 60 percent of the effec-
tive length of the most suitable run-
way at the destination airport; and 

(2) Is greater than the weight allow-

able if the landing is to be made on the 
runway— 

(i) With the greatest effective length 

in still air; and 

(ii) Required by the probable wind, 

taking into account not more than 50 
percent of the headwind component or 
not less than 150 percent of the tail-
wind component. 

(b) For the purposes of this section, 

it is assumed that— 

(1) The airplane passes directly over 

the intersection of the obstruction 
clearance plane and the runway at a 
height of 50 feet in a steady gliding ap-
proach at a true indicated airspeed of 
at least 1.3 

V

So

(2) The landing does not require ex-

ceptional pilot skill; and 

(3) The airplane is operating in stand-

ard atmosphere. 

§ 121.205 Nontransport category air-

planes: Landing limitations: Alter-
nate airport. 

No person may list an airport as an 

alternate airport in a dispatch or flight 
release for a nontransport category air-
plane unless that airplane (at the 
weight anticipated at the time of ar-
rival) based on the assumptions con-
tained in § 121.203, can be brought to a 
full stop landing within 70 percent of 
the effective length of the runway. 

§ 121.207 Provisionally certificated air-

planes: Operating limitations. 

In addition to the limitations in 

§ 91.317 of this chapter, the following 
limitations apply to the operation of 
provisionally certificated airplanes by 
certificate holders: 

(a) In addition to crewmembers, each 

certificate holder may carry on such an 
airplane only those persons who are 
listed in § 121.547(c) or who are specifi-
cally authorized by both the certificate 
holder and the Administrator. 

(b) Each certificate holder shall keep 

a log of each flight conducted under 
this section and shall keep accurate 
and complete records of each inspec-
tion made and all maintenance per-
formed on the airplane. The certificate 
holder shall make the log and records 
made under this section available to 
the manufacturer and the Adminis-
trator. 

[Doc. No. 28154, 61 FR 2611, Jan. 26, 1996] 

Subpart J—Special Airworthiness 

Requirements 

S

OURCE

: Docket No. 6258, 29 FR 19202, Dec. 

31, 1964, unless otherwise noted. 

§ 121.211 Applicability. 

(a) This subpart prescribes special 

airworthiness requirements applicable 
to certificate holders as stated in para-
graphs (b) through (e) of this section. 

(b) Except as provided in paragraph 

(d) of this section, each airplane type 
certificated under Aero Bulletin 7A or 
part 04 of the Civil Air Regulations in 
effect before November 1, 1946 must 
meet the special airworthiness require-
ments in §§ 121.215 through 121.283. 

background image

107 

Federal Aviation Administration, DOT 

§ 121.221 

(c) Each certificate holder must com-

ply with the requirements of §§ 121.285 
through 121.291. 

(d) If the Administrator determines 

that, for a particular model of airplane 
used in cargo service, literal compli-
ance with any requirement under para-
graph (b) of this section would be ex-
tremely difficult and that compliance 
would not contribute materially to the 
objective sought, he may require com-
pliance only with those requirements 
that are necessary to accomplish the 
basic objectives of this part. 

(e) No person may operate under this 

part a nontransport category airplane 
type certificated after December 31, 
1964, unless the airplane meets the spe-
cial airworthiness requirements in 
§ 121.293. 

[Doc. No. 28154, 60 FR 65928, Dec. 20, 1995] 

§ 121.213 [Reserved] 

§ 121.215 Cabin interiors. 

(a) Except as provided in § 121.312, 

each compartment used by the crew or 
passengers must meet the require-
ments of this section. 

(b) Materials must be at least flash 

resistant. 

(c) The wall and ceiling linings and 

the covering of upholstering, floors, 
and furnishings must be flame resist-
ant. 

(d) Each compartment where smok-

ing is to be allowed must be equipped 
with self-contained ash trays that are 
completely removable and other com-
partments must be placarded against 
smoking. 

(e) Each receptacle for used towels, 

papers, and wastes must be of fire-re-
sistant material and must have a cover 
or other means of containing possible 
fires started in the receptacles. 

[Doc. No. 6258, 29 FR 19202, Dec. 31, 1964, as 
amended by Amdt. 121–84, 37 FR 3974, Feb. 24, 
1972] 

§ 121.217 Internal doors. 

In any case where internal doors are 

equipped with louvres or other ven-
tilating means, there must be a means 
convenient to the crew for closing the 
flow of air through the door when nec-
essary. 

§ 121.219 Ventilation. 

Each passenger or crew compartment 

must be suitably ventilated. Carbon 
monoxide concentration may not be 
more than one part in 20,000 parts of 
air, and fuel fumes may not be present. 
In any case where partitions between 
compartments have louvres or other 
means allowing air to flow between 
compartments, there must be a means 
convenient to the crew for closing the 
flow of air through the partitions, 
when necessary. 

§ 121.221 Fire precautions. 

(a) Each compartment must be de-

signed so that, when used for storing 
cargo or baggage, it meets the fol-
lowing requirements: 

(1) No compartment may include con-

trols, wiring, lines, equipment, or ac-
cessories that would upon damage or 
failure, affect the safe operation of the 
airplane unless the item is adequately 
shielded, isolated, or otherwise pro-
tected so that it cannot be damaged by 
movement of cargo in the compart-
ment and so that damage to or failure 
of the item would not create a fire haz-
ard in the compartment. 

(2) Cargo or baggage may not inter-

fere with the functioning of the fire- 
protective features of the compart-
ment. 

(3) Materials used in the construction 

of the compartments, including tie- 
down equipment, must be at least 
flame resistant. 

(4) Each compartment must include 

provisions for safeguarding against 
fires according to the classifications 
set forth in paragraphs (b) through (f) 
of this section. 

(b) 

Class A. 

Cargo and baggage com-

partments are classified in the ‘‘A’’ 
category if— 

(1) A fire therein would be readily 

discernible to a member of the crew 
while at his station; and 

(2) All parts of the compartment are 

easily accessible in flight. 

There must be a hand fire extinguisher 
available for each Class A compart-
ment. 

(c) 

Class B. 

Cargo and baggage com-

partments are classified in the ‘‘B’’ 
category if enough access is provided 
while in flight to enable a member of 

background image

108 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.223 

the crew to effectively reach all of the 
compartment and its contents with a 
hand fire extinguisher and the com-
partment is so designed that, when the 
access provisions are being used, no 
hazardous amount of smoke, flames, or 
extinguishing agent enters any com-
partment occupied by the crew or pas-
sengers. Each Class B compartment 
must comply with the following: 

(1) It must have a separate approved 

smoke or fire detector system to give 
warning at the pilot or flight engineer 
station. 

(2) There must be a hand fire extin-

guisher available for the compartment. 

(3) It must be lined with fire-resist-

ant material, except that additional 
service lining of flame-resistant mate-
rial may be used. 

(d) 

Class C. 

Cargo and baggage com-

partments are classified in the ‘‘C’’ cat-
egory if they do not conform with the 
requirements for the ‘‘A’’, ‘‘B’’, ‘‘D’’, or 
‘‘E’’ categories. Each Class C compart-
ment must comply with the following: 

(1) It must have a separate approved 

smoke or fire detector system to give 
warning at the pilot or flight engineer 
station. 

(2) It must have an approved built-in 

fire-extinguishing system controlled 
from the pilot or flight engineer sta-
tion. 

(3) It must be designed to exclude 

hazardous quantities of smoke, flames, 
or extinguishing agents from entering 
into any compartment occupied by the 
crew or passengers. 

(4) It must have ventilation and draft 

controlled so that the extinguishing 
agent provided can control any fire 
that may start in the compartment. 

(5) It must be lined with fire-resist-

ant material, except that additional 
service lining of flame-resistant mate-
rial may be used. 

(e) 

Class D. 

Cargo and baggage com-

partments are classified in the ‘‘D’’ 
category if they are so designed and 
constructed that a fire occurring there-
in will be completely confined without 
endangering the safety of the airplane 
or the occupants. Each Class D com-
partment must comply with the fol-
lowing: 

(1) It must have a means to exclude 

hazardous quantities of smoke, flames, 
or noxious gases from entering any 

compartment occupied by the crew or 
passengers. 

(2) Ventilation and drafts must be 

controlled within each compartment so 
that any fire likely to occur in the 
compartment will not progress beyond 
safe limits. 

(3) It must be completely lined with 

fire-resistant material. 

(4) Consideration must be given to 

the effect of heat within the compart-
ment on adjacent critical parts of the 
airplane. 

(f) 

Class E. 

On airplanes used for the 

carriage of cargo only, the cabin area 
may be classified as a Class ‘‘E’’ com-
partment. Each Class E compartment 
must comply with the following: 

(1) It must be completely lined with 

fire-resistant material. 

(2) It must have a separate system of 

an approved type smoke or fire detec-
tor to give warning at the pilot or 
flight engineer station. 

(3) It must have a means to shut off 

the ventilating air flow to or within 
the compartment and the controls for 
that means must be accessible to the 
flight crew in the crew compartment. 

(4) It must have a means to exclude 

hazardous quantities of smoke, flames, 
or noxious gases from entering the 
flight crew compartment. 

(5) Required crew emergency exits 

must be accessible under all cargo 
loading conditions. 

§ 121.223 Proof of compliance with 

§ 121.221. 

Compliance with those provisions of 

§ 121.221 that refer to compartment ac-
cessibility, the entry of hazardous 
quantities of smoke or extinguishing 
agent into compartments occupied by 
the crew or passengers, and the dissipa-
tion of the extinguishing agent in Class 
‘‘C’’ compartments must be shown by 
tests in flight. During these tests it 
must be shown that no inadvertent op-
eration of smoke or fire detectors in 
other compartments within the air-
plane would occur as a result of fire 
contained in any one compartment, ei-
ther during the time it is being extin-
guished, or thereafter, unless the extin-
guishing system floods those compart-
ments simultaneously. 

background image

109 

Federal Aviation Administration, DOT 

§ 121.243 

§ 121.225 Propeller deicing fluid. 

If combustible fluid is used for pro-

peller deicing, the certificate holder 
must comply with § 121.255. 

§ 121.227 Pressure cross-feed arrange-

ments. 

(a) Pressure cross-feed lines may not 

pass through parts of the airplane used 
for carrying persons or cargo unless— 

(1) There is a means to allow crew-

members to shut off the supply of fuel 
to these lines; or 

(2) The lines are enclosed in a fuel 

and fume-proof enclosure that is venti-
lated and drained to the exterior of the 
airplane. 

However, such an enclosure need not be 
used if those lines incorporate no fit-
tings on or within the personnel or 
cargo areas and are suitably routed or 
protected to prevent accidental dam-
age. 

(b) Lines that can be isolated from 

the rest of the fuel system by valves at 
each end must incorporate provisions 
for relieving excessive pressures that 
may result from exposure of the iso-
lated line to high temperatures. 

§ 121.229 Location of fuel tanks. 

(a) Fuel tanks must be located in ac-

cordance with § 121.255. 

(b) No part of the engine nacelle skin 

that lies immediately behind a major 
air outlet from the engine compart-
ment may be used as the wall of an in-
tegral tank. 

(c) Fuel tanks must be isolated from 

personnel compartments by means of 
fume- and fuel-proof enclosures. 

§ 121.231 Fuel system lines and fit-

tings. 

(a) Fuel lines must be installed and 

supported so as to prevent excessive vi-
bration and so as to be adequate to 
withstand loads due to fuel pressure 
and accelerated flight conditions. 

(b) Lines connected to components of 

the airplanes between which there may 
be relative motion must incorporate 
provisions for flexibility. 

(c) Flexible connections in lines that 

may be under pressure and subject to 
axial loading must use flexible hose as-
semblies rather than hose clamp con-
nections. 

(d) Flexible hose must be of an ac-

ceptable type or proven suitable for the 
particular application. 

§ 121.233 Fuel lines and fittings in des-

ignated fire zones. 

Fuel lines and fittings in each des-

ignated fire zone must comply with 
§ 121.259. 

§ 121.235 Fuel valves. 

Each fuel valve must— 
(a) Comply with § 121.257; 
(b) Have positive stops or suitable 

index provisions in the ‘‘on’’ and ‘‘off’’ 
positions; and 

(c) Be supported so that loads result-

ing from its operation or from acceler-
ated flight conditions are not trans-
mitted to the lines connected to the 
valve. 

§ 121.237 Oil lines and fittings in des-

ignated fire zones. 

Oil line and fittings in each des-

ignated fire zone must comply with 
§ 121.259. 

§ 121.239 Oil valves. 

(a) Each oil valve must— 
(1) Comply with § 121.257; 
(2) Have positive stops or suitable 

index provisions in the ‘‘on’’ and ‘‘off’’ 
positions; and 

(3) Be supported so that loads result-

ing from its operation or from acceler-
ated flight conditions are not trans-
mitted to the lines attached to the 
valve. 

(b) The closing of an oil shutoff 

means must not prevent feathering the 
propeller, unless equivalent safety pro-
visions are incorporated. 

§ 121.241 Oil system drains. 

Accessible drains incorporating ei-

ther a manual or automatic means for 
positive locking in the closed position, 
must be provided to allow safe drainage 
of the entire oil system. 

§ 121.243 Engine breather lines. 

(a) Engine breather lines must be so 

arranged that condensed water vapor 
that may freeze and obstruct the line 
cannot accumulate at any point. 

(b) Engine breathers must discharge 

in a location that does not constitute a 
fire hazard in case foaming occurs and 

background image

110 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.245 

so that oil emitted from the line does 
not impinge upon the pilots’ wind-
shield. 

(c) Engine breathers may not dis-

charge into the engine air induction 
system. 

§ 121.245 Fire walls. 

Each engine, auxiliary power unit, 

fuel-burning heater, or other item of 
combustion equipment that is intended 
for operation in flight must be isolated 
from the rest of the airplane by means 
of firewalls or shrouds, or by other 
equivalent means. 

§ 121.247 Fire-wall construction. 

Each fire wall and shroud must— 
(a) Be so made that no hazardous 

quantity of air, fluids, or flame can 
pass from the engine compartment to 
other parts of the airplane; 

(b) Have all openings in the fire wall 

or shroud sealed with close-fitting fire- 
proof grommets, bushings, or firewall 
fittings; 

(c) Be made of fireproof material; and 
(d) Be protected against corrosion. 

§ 121.249 Cowling. 

(a) Cowling must be made and sup-

ported so as to resist the vibration in-
ertia, and air loads to which it may be 
normally subjected. 

(b) Provisions must be made to allow 

rapid and complete drainage of the 
cowling in normal ground and flight at-
titudes. Drains must not discharge in 
locations constituting a fire hazard. 
Parts of the cowling that are subjected 
to high temperatures because they are 
near exhaust system parts or because 
of exhaust gas impingement must be 
made of fireproof material. Unless oth-
erwise specified in these regulations all 
other parts of the cowling must be 
made of material that is at least fire 
resistant. 

§ 121.251 Engine accessory section dia-

phragm. 

Unless equivalent protection can be 

shown by other means, a diaphragm 
that complies with § 121.247 must be 
provided on air-cooled engines to iso-
late the engine power section and all 
parts of the exhaust system from the 
engine accessory compartment. 

§ 121.253 Powerplant fire protection. 

(a) Designated fire zones must be pro-

tected from fire by compliance with 
§§ 121.255 through 121.261. 

(b) Designated fire zones are— 
(1) Engine accessory sections; 
(2) Installations where no isolation is 

provided between the engine and acces-
sory compartment; and 

(3) Areas that contain auxiliary 

power units, fuel-burning heaters, and 
other combustion equipment. 

§ 121.255 Flammable fluids. 

(a) No tanks or reservoirs that are a 

part of a system containing flammable 
fluids or gases may be located in des-
ignated fire zones, except where the 
fluid contained, the design of the sys-
tem, the materials used in the tank, 
the shutoff means, and the connec-
tions, lines, and controls provide equiv-
alent safety. 

(b) At least one-half inch of clear air-

space must be provided between any 
tank or reservoir and a firewall or 
shroud isolating a designated fire zone. 

§ 121.257 Shutoff means. 

(a) Each engine must have a means 

for shutting off or otherwise pre-
venting hazardous amounts of fuel, oil, 
deicer, and other flammable fluids 
from flowing into, within, or through 
any designated fire zone. However, 
means need not be provided to shut off 
flow in lines that are an integral part 
of an engine. 

(b) The shutoff means must allow an 

emergency operating sequence that is 
compatible with the emergency oper-
ation of other equipment, such as 
feathering the propeller, to facilitate 
rapid and effective control of fires. 

(c) Shutoff means must be located 

outside of designated fire zones, unless 
equivalent safety is provided, and it 
must be shown that no hazardous 
amount of flammable fluid will drain 
into any designated fire zone after a 
shut off. 

(d) Adequate provisions must be 

made to guard against inadvertent op-
eration of the shutoff means and to 
make it possible for the crew to reopen 
the shutoff means after it has been 
closed. 

background image

111 

Federal Aviation Administration, DOT 

§ 121.275 

§ 121.259 Lines and fittings. 

(a) Each line, and its fittings, that is 

located in a designated fire zone, if it 
carries flammable fluids or gases under 
pressure, or is attached directly to the 
engine, or is subject to relative motion 
between components (except lines and 
fittings forming an integral part of the 
engine), must be flexible and fire-re-
sistant with fire-resistant, factory- 
fixed, detachable, or other approved 
fire-resistant ends. 

(b) Lines and fittings that are not 

subject to pressure or to relative mo-
tion between components must be of 
fire-resistant materials. 

§ 121.261 Vent and drain lines. 

All vent and drain lines and their fit-

tings, that are located in a designated 
fire zone must, if they carry flammable 
fluids or gases, comply with § 121.259, if 
the Administrator finds that the rup-
ture or breakage of any vent or drain 
line may result in a fire hazard. 

§ 121.263 Fire-extinguishing systems. 

(a) Unless the certificate holder 

shows that equivalent protection 
against destruction of the airplane in 
case of fire is provided by the use of 
fireproof materials in the nacelle and 
other components that would be sub-
jected to flame, fire-extinguishing sys-
tems must be provided to serve all des-
ignated fire zones. 

(b) Materials in the fire-extin-

guishing system must not react chemi-
cally with the extinguishing agent so 
as to be a hazard. 

§ 121.265 Fire-extinguishing agents. 

Only methyl bromide, carbon dioxide, 

or another agent that has been shown 
to provide equivalent extinguishing ac-
tion may be used as a fire-extin-
guishing agent. If methyl bromide or 
any other toxic extinguishing agent is 
used, provisions must be made to pre-
vent harmful concentrations of fluid or 
fluid vapors from entering any per-
sonnel compartment either because of 
leakage during normal operation of the 
airplane or because of discharging the 
fire extinguisher on the ground or in 
flight when there is a defect in the ex-
tinguishing system. If a methyl bro-
mide system is used, the containers 

must be charged with dry agent and 
sealed by the fire-extinguisher manu-
facturer or some other person using 
satisfactory recharging equipment. If 
carbon dioxide is used, it must not be 
possible to discharge enough gas into 
the personnel compartments to create 
a danger of suffocating the occupants. 

§ 121.267 Extinguishing agent con-

tainer pressure relief. 

Extinguishing agent containers must 

be provided with a pressure relief to 
prevent bursting of the container be-
cause of excessive internal pressures. 
The discharge line from the relief con-
nection must terminate outside the 
airplane in a place convenient for in-
spection on the ground. An indicator 
must be provided at the discharge end 
of the line to provide a visual indica-
tion when the container has dis-
charged. 

§ 121.269 Extinguishing agent con-

tainer compartment temperature. 

Precautions must be taken to insure 

that the extinguishing agent con-
tainers are installed in places where 
reasonable temperatures can be main-
tained for effective use of the extin-
guishing system. 

§ 121.271 Fire-extinguishing system 

materials. 

(a) Except as provided in paragraph 

(b) of this section, each component of a 
fire-extinguishing system that is in a 
designated fire zone must be made of 
fireproof materials. 

(b) Connections that are subject to 

relative motion between components of 
the airplane must be made of flexible 
materials that are at least fire-resist-
ant and be located so as to minimize 
the probability of failure. 

§ 121.273 Fire-detector systems. 

Enough quick-acting fire detectors 

must be provided in each designated 
fire zone to assure the detection of any 
fire that may occur in that zone. 

§ 121.275 Fire detectors. 

Fire detectors must be made and in-

stalled in a manner that assures their 
ability to resist, without failure, all vi-
bration, inertia, and other loads to 
which they may be normally subjected. 

background image

112 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.277 

Fire detectors must be unaffected by 
exposure to fumes, oil, water, or other 
fluids that may be present. 

§ 121.277 Protection of other airplane 

components against fire. 

(a) Except as provided in paragraph 

(b) of this section, all airplane surfaces 
aft of the nacelles in the area of one 
nacelle diameter on both sides of the 
nacelle centerline must be made of ma-
terial that is at least fire resistant. 

(b) Paragraph (a) of this section does 

not apply to tail surfaces lying behind 
nacelles unless the dimensional con-
figuration of the airplane is such that 
the tail surfaces could be affected read-
ily by heat, flames, or sparks ema-
nating from a designated fire zone or 
from the engine compartment of any 
nacelle. 

§ 121.279 Control of engine rotation. 

(a) Except as provided in paragraph 

(b) of this section, each airplane must 
have a means of individually stopping 
and restarting the rotation of any en-
gine in flight. 

(b) In the case of turbine engine in-

stallations, a means of stopping the ro-
tation need be provided only if the Ad-
ministrator finds that rotation could 
jeopardize the safety of the airplane. 

§ 121.281 Fuel system independence. 

(a) Each airplane fuel system must be 

arranged so that the failure of any one 
component does not result in the irre-
coverable loss of power of more than 
one engine. 

(b) A separate fuel tank need not be 

provided for each engine if the certifi-
cate holder shows that the fuel system 
incorporates features that provide 
equivalent safety. 

§ 121.283 Induction system ice preven-

tion. 

A means for preventing the malfunc-

tioning of each engine due to ice accu-
mulation in the engine air induction 
system must be provided for each air-
plane. 

§ 121.285 Carriage of cargo in pas-

senger compartments. 

(a) Except as provided in paragraph 

(b), (c), or (d) or this section, no certifi-

cate holder may carry cargo in the pas-
senger compartment of an airplane. 

(b) Cargo may be carried anywhere in 

the passenger compartment if it is car-
ried in an approved cargo bin that 
meets the following requirements: 

(1) The bin must withstand the load 

factors and emergency landing condi-
tions applicable to the passenger seats 
of the airplane in which the bin is in-
stalled, multiplied by a factor of 1.15, 
using the combined weight of the bin 
and the maximum weight of cargo that 
may be carried in the bin. 

(2) The maximum weight of cargo 

that the bin is approved to carry and 
any instructions necessary to insure 
proper weight distribution within the 
bin must be conspicuously marked on 
the bin. 

(3) The bin may not impose any load 

on the floor or other structure of the 
airplane that exceeds the load limita-
tions of that structure. 

(4) The bin must be attached to the 

seat tracks or to the floor structure of 
the airplane, and its attachment must 
withstand the load factors and emer-
gency landing conditions applicable to 
the passenger seats of the airplane in 
which the bin is installed, multiplied 
by either the factor 1.15 or the seat at-
tachment factor specified for the air-
plane, whichever is greater, using the 
combined weight of the bin and the 
maximum weight of cargo that may be 
carried in the bin. 

(5) The bin may not be installed in a 

position that restricts access to or use 
of any required emergency exit, or of 
the aisle in the passenger compart-
ment. 

(6) The bin must be fully enclosed 

and made of material that is at least 
flame resistant. 

(7) Suitable safeguards must be pro-

vided within the bin to prevent the 
cargo from shifting under emergency 
landing conditions. 

(8) The bin may not be installed in a 

position that obscures any passenger’s 
view of the ‘‘seat belt’’ sign ‘‘no smok-
ing’’ sign, or any required exit sign, un-
less an auxiliary sign or other approved 
means for proper notification of the 
passenger is provided. 

(c) Cargo may be carried aft of a 

bulkhead or divider in any passenger 

background image

113 

Federal Aviation Administration, DOT 

§ 121.289 

compartment provided the cargo is re-
strained to the load factors in 
§ 25.561(b)(3) and is loaded as follows: 

(1) It is properly secured by a safety 

belt or other tiedown having enough 
strength to eliminate the possibility of 
shifting under all normally anticipated 
flight and ground conditions. 

(2) It is packaged or covered in a 

manner to avoid possible injury to pas-
sengers and passenger compartment oc-
cupants. 

(3) It does not impose any load on 

seats or the floor structure that ex-
ceeds the load limitation for those 
components. 

(4) Its location does not restrict ac-

cess to or use of any required emer-
gency or regular exit, or of the aisle in 
the passenger compartment. 

(5) Its location does not obscure any 

passenger’s view of the ‘‘seat belt’’ 
sign, ‘‘no smoking’’ sign, or required 
exit sign, unless an auxiliary sign or 
other approved means for proper notifi-
cation of the passenger is provided. 

(d) Cargo, including carry-on bag-

gage, may be carried anywhere in the 
passenger compartment of a non-
transport category airplane type cer-
tificated after December 31, 1964, if it is 
carried in an approved cargo rack, bin, 
or compartment installed in or on the 
airplane, if it is secured by an approved 
means, or if it is carried in accordance 
with each of the following: 

(1) For cargo, it is properly secured 

by a safety belt or other tie-down hav-
ing enough strength to eliminate the 
possibility of shifting under all nor-
mally anticipated flight and ground 
conditions, or for carry-on baggage, it 
is restrained so as to prevent its move-
ment during air turbulence. 

(2) It is packaged or covered to avoid 

possible injury to occupants. 

(3) It does not impose any load on 

seats or in the floor structure that ex-
ceeds the load limitation for those 
components. 

(4) It is not located in a position that 

obstructs the access to, or use of, any 
required emergency or regular exit, or 
the use of the aisle between the crew 
and the passenger compartment, or is 
located in a position that obscures any 
passenger’s view of the ‘‘seat belt’’ 
sign, ‘‘no smoking’’ sign or placard, or 
any required exit sign, unless an auxil-

iary sign or other approved means for 
proper notification of the passengers is 
provided. 

(5) It is not carried directly above 

seated occupants. 

(6) It is stowed in compliance with 

this section for takeoff and landing. 

(7) For cargo-only operations, para-

graph (d)(4) of this section does not 
apply if the cargo is loaded so that at 
least one emergency or regular exit is 
available to provide all occupants of 
the airplane a means of unobstructed 
exit from the airplane if an emergency 
occurs. 

[Doc. No. 6258, 29 FR 19202, Dec. 31, 1964, as 
amended by Amdt. 121–179, 47 FR 33390, Aug. 
2, 1982; Amdt. 121–251, 60 FR 65928, Dec. 20, 
1995] 

§ 121.287 Carriage of cargo in cargo 

compartments. 

When cargo is carried in cargo com-

partments that are designed to require 
the physical entry of a crewmember to 
extinguish any fire that may occur 
during flight, the cargo must be loaded 
so as to allow a crewmember to effec-
tively reach all parts of the compart-
ment with the contents of a hand fire 
extinguisher. 

§ 121.289 Landing gear: Aural warning 

device. 

(a) Except for airplanes that comply 

with the requirements of § 25.729 of this 
chapter on or after January 6, 1992, 
each airplane must have a landing gear 
aural warning device that functions 
continuously under the following con-
ditions: 

(1) For airplanes with an established 

approach wing-flap position, whenever 
the wing flaps are extended beyond the 
maximum certificated approach climb 
configuration position in the Airplane 
Flight Manual and the landing gear is 
not fully extended and locked. 

(2) For airplanes without an estab-

lished approach climb wing-flap posi-
tion, whenever the wing flaps are ex-
tended beyond the position at which 
landing gear extension is normally per-
formed and the landing gear is not 
fully extended and locked. 

(b) The warning system required by 

paragraph (a) of this section— 

(1) May not have a manual shutoff; 

background image

114 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.291 

(2) Must be in addition to the throt-

tle-actuated device installed under the 
type certification airworthiness re-
quirements; and 

(3) May utilize any part of the throt-

tle-actuated system including the 
aural warning device. 

(c) The flap position sensing unit 

may be installed at any suitable place 
in the airplane. 

[Doc. No. 6258, 29 FR 19202, Dec. 31, 1964, as 
amended by Amdt. 121–3, 30 FR 3638, Mar. 19, 
1965; Amdt. 121–130, 41 FR 47229, Oct. 28, 1976; 
Amdt. 121–227, 56 FR 63762, Dec. 5, 1991; Amdt. 
121–251, 60 FR 65929, Dec. 20, 1995] 

§ 121.291 Demonstration of emergency 

evacuation procedures. 

(a) Except as provided in paragraph 

(a)(1) of this section, each certificate 
holder must conduct an actual dem-
onstration of emergency evacuation 
procedures in accordance with para-
graph (a) of appendix D to this part to 
show that each type and model of air-
plane with a seating capacity of more 
than 44 passengers to be used in its pas-
senger-carrying operations allows the 
evacuation of the full capacity, includ-
ing crewmembers, in 90 seconds or less. 

(1) An actual demonstration need not 

be conducted if that airplane type and 
model has been shown to be in compli-
ance with this paragraph in effect on or 
after October 24, 1967, or, if during type 
certification, with § 25.803 of this chap-
ter in effect on or after December 1, 
1978. 

(2) Any actual demonstration con-

ducted after September 27, 1993, must 
be in accordance with paragraph (a) of 
appendix D to this part in effect on or 
after that date or with § 25.803 in effect 
on or after that date. 

(b) Each certificate holder con-

ducting operations with airplanes with 
a seating capacity of more than 44 pas-
sengers must conduct a partial dem-
onstration of emergency evacuation 
procedures in accordance with para-
graph (c) of this section upon: 

(1) Initial introduction of a type and 

model of airplane into passenger-car-
rying operation; 

(2) Changing the number, location, or 

emergency evacuation duties or proce-
dures of flight attendants who are re-
quired by § 121.391; or 

(3) Changing the number, location, 

type of emergency exits, or type of 
opening mechanism on emergency 
exits available for evacuation. 

(c) In conducting the partial dem-

onstration required by paragraph (b) of 
this section, each certificate holder 
must: 

(1) Demonstrate the effectiveness of 

its crewmember emergency training 
and evacuation procedures by con-
ducting a demonstration, not requiring 
passengers and observed by the Admin-
istrator, in which the flight attendants 
for that type and model of airplane, 
using that operator’s line operating 
procedures, open 50 percent of the re-
quired floor-level emergency exits and 
50 percent of the required non-floor- 
level emergency exits whose opening 
by a flight attendant is defined as an 
emergency evacuation duty under 
§ 121.397, and deploy 50 percent of the 
exit slides. The exits and slides will be 
selected by the administrator and must 
be ready for use within 15 seconds; 

(2) Apply for and obtain approval 

from the responsible Flight Standards 
office before conducting the dem-
onstration; 

(3) Use flight attendants in this dem-

onstration who have been selected at 
random by the Administrator, have 
completed the certificate holder’s 
FAA-approved training program for the 
type and model of airplane, and have 
passed a written or practical examina-
tion on the emergency equipment and 
procedures; and 

(4) Apply for and obtain approval 

from the responsible Flight Standards 
office before commencing operations 
with this type and model airplane. 

(d) Each certificate holder operating 

or proposing to operate one or more 
landplanes in extended overwater oper-
ations, or otherwise required to have 
certain equipment under § 121.339, must 
show, by simulated ditching conducted 
in accordance with paragraph (b) of ap-
pendix D to this part, that it has the 
ability to efficiently carry out its 
ditching procedures. For certificate 
holders subject to § 121.2(a)(1), this 
paragraph applies only when a new 
type or model airplane is introduced 
into the certificate holder’s operations 
after January 19, 1996. 

background image

115 

Federal Aviation Administration, DOT 

§ 121.305 

(e) For a type and model airplane for 

which the simulated ditching specified 
in paragraph (d) has been conducted by 
a part 121 certificate holder, the re-
quirements of paragraphs (b)(2), (b)(4), 
and (b)(5) of appendix D to this part are 
complied with if each life raft is re-
moved from stowage, one life raft is 
launched and inflated (or one slide life 
raft is inflated) and crewmembers as-
signed to the inflated life raft display 
and describe the use of each item of re-
quired emergency equipment. The life 
raft or slide life raft to be inflated will 
be selected by the Administrator. 

[Doc. No. 21269, 46 FR 61453, Dec. 17, 1981, as 
amended by Amdt. 121–233, 58 FR 45230, Aug. 
26, 1993; Amdt. 121–251, 60 FR 65929, Dec. 20, 
1995; Amdt. 121–307, 69 FR 67499, Nov. 17, 2004; 
Docket FAA–2018–0119, Amdt. 121–380, 83 FR 
9172, Mar. 5, 2018] 

§ 121.293 Special airworthiness re-

quirements for nontransport cat-
egory airplanes type certificated 
after December 31, 1964. 

No certificate holder may operate a 

nontransport category airplane manu-
factured after December 20, 1999 unless 
the airplane contains a takeoff warning 
system that meets the requirements of 
14 CFR 25.703. However, the takeoff 
warning system does not have to cover 
any device for which it has been dem-
onstrated that takeoff with that device 
in the most adverse position would not 
create a hazardous condition. 

[Doc. No. 28154, 60 FR 65929, Dec. 20, 1995] 

§ 121.295 Location for a suspect device. 

After November 28, 2009, all airplanes 

with a maximum certificated passenger 
seating capacity of more than 60 per-
sons must have a location where a sus-
pected explosive or incendiary device 
found in flight can be placed to mini-
mize the risk to the airplane. 

[Doc. No. FAA–2006–26722, 73 FR 63880, Oct. 
28, 2008] 

Subpart K—Instrument and 

Equipment Requirements 

S

OURCE

: Docket No. 6258, 29 FR 19205, Dec. 

31, 1964, unless otherwise noted. 

§ 121.301 Applicability. 

This subpart prescribes instrument 

and equipment requirements for all 
certificate holders. 

§ 121.303 Airplane instruments and 

equipment. 

(a) Unless otherwise specified, the in-

strument and equipment requirements 
of this subpart apply to all operations 
under this part. 

(b) Instruments and equipment re-

quired by §§ 121.305 through 121.359 and 
121.803 must be approved and installed 
in accordance with the airworthiness 
requirements applicable to them. 

(c) Each airspeed indicator must be 

calibrated in knots, and each airspeed 
limitation and item of related informa-
tion in the Airplane Flight Manual and 
pertinent placards must be expressed in 
knots. 

(d) Except as provided in §§ 121.627(b) 

and 121.628, no person may take off any 
airplane unless the following instru-
ments and equipment are in operable 
condition: 

(1) Instruments and equipment re-

quired to comply with airworthiness 
requirements under which the airplane 
is type certificated and as required by 
§§ 121.213 through 121.283 and 121.289. 

(2) Instruments and equipment speci-

fied in §§ 121.305 through 121.321, 121.359, 
121.360, and 121.803 for all operations, 
and the instruments and equipment 
specified in §§ 121.323 through 121.351 for 
the kind of operation indicated, wher-
ever these items are not already re-
quired by paragraph (d)(1) of this sec-
tion. 

[Doc. No. 6258, 29 FR 19202, Dec. 31, 1964, as 
amended by Amdt. 121–44, 33 FR 14406, Sept. 
25, 1968; Amdt. 121–65, 35 FR 12709, Aug. 11, 
1970; Amdt. 121–114, 39 FR 44440, Dec. 24, 1974; 
Amdt. 121–126, 40 FR 55314, Nov. 28, 1975; 
Amdt. 121–222, 56 FR 12310, Mar. 22, 1991; 
Amdt. 121–253, 61 FR 2611, Jan. 26, 1996; Amdt. 
121–281, 66 FR 19043, Apr. 12, 2001] 

§ 121.305 Flight and navigational 

equipment. 

No person may operate an airplane 

unless it is equipped with the following 
flight and navigational instruments 
and equipment: 

(a) An airspeed indicating system 

with heated pitot tube or equivalent 

background image

116 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.306 

means for preventing malfunctioning 
due to icing. 

(b) A sensitive altimeter. 
(c) A sweep-second hand clock (or ap-

proved equivalent). 

(d) A free-air temperature indicator. 
(e) A gyroscopic bank and pitch indi-

cator (artificial horizon). 

(f) A gyroscopic rate-of-turn indi-

cator combined with an integral slip- 
skid indicator (turn-and-bank indi-
cator) except that only a slip-skid indi-
cator is required when a third attitude 
instrument system usable through 
flight attitudes of 360

° 

of pitch and roll 

is installed in accordance with para-
graph (k) of this section. 

(g) A gyroscopic direction indicator 

(directional gyro or equivalent). 

(h) A magnetic compass. 
(i) A vertical speed indicator (rate-of- 

climb indicator). 

(j) On the airplane described in this 

paragraph, in addition to two gyro-
scopic bank and pitch indicators (arti-
ficial horizons) for use at the pilot sta-
tions, a third such instrument is in-
stalled in accordance with paragraph 
(k) of this section: 

(1) On each turbojet powered air-

plane. 

(2) On each turbopropeller powered 

airplane having a passenger-seat con-
figuration of more than 30 seats, ex-
cluding each crewmember seat, or a 
payload capacity of more than 7,500 
pounds. 

(3) On each turbopropeller powered 

airplane having a passenger-seat con-
figuration of 30 seats or fewer, exclud-
ing each crewmember seat, and a pay-
load capacity of 7,500 pounds or less 
that is manufactured on or after March 
20, 1997. 

(4) After December 20, 2010, on each 

turbopropeller powered airplane having 
a passenger seat configuration of 10–30 
seats and a payload capacity of 7,500 
pounds or less that was manufactured 
before March 20, 1997. 

(k) When required by paragraph (j) of 

this section, a third gyroscopic bank- 
and-pitch indicator (artificial horizon) 
that: 

(1) Is powered from a source inde-

pendent of the electrical generating 
system; 

(2) Continues reliable operation for a 

minimum of 30 minutes after total fail-
ure of the electrical generating system; 

(3) Operates independently of any 

other attitude indicating system; 

(4) Is operative without selection 

after total failure of the electrical gen-
erating system; 

(5) Is located on the instrument panel 

in a position acceptable to the Admin-
istrator that will make it plainly visi-
ble to and usable by each pilot at his or 
her station; and 

(6) Is appropriately lighted during all 

phases of operation. 

[Doc. No. 6258, 29 FR 19205, Dec. 31, 1964, as 
amended by Amdt. 121–57, 35 FR 304, Jan. 8, 
1970; Amdt. 121–60, 35 FR 7108, May 6, 1970; 
Amdt. 121–81, 36 FR 23050, Dec. 3, 1971; Amdt. 
121–130, 41 FR 47229, Oct. 28, 1976; Amdt. 121– 
230, 58 FR 12158, Mar. 3, 1993; Amdt. 121–251, 60 
FR 65929, Dec. 20, 1995; Amdt. 121–262, 62 FR 
13256, Mar. 19, 1997] 

§ 121.306 Portable electronic devices. 

(a) Except as provided in paragraph 

(b) of this section, no person may oper-
ate, nor may any operator or pilot in 
command of an aircraft allow the oper-
ation of, any portable electronic device 
on any U.S.-registered civil aircraft op-
erating under this part. 

(b) Paragraph (a) of this section does 

not apply to— 

(1) Portable voice recorders; 
(2) Hearing aids; 
(3) Heart pacemakers; 
(4) Electric shavers; 
(5) Portable oxygen concentrators 

that comply with the requirements in 
§ 121.574; or 

(6) Any other portable electronic de-

vice that the part 119 certificate holder 
has determined will not cause inter-
ference with the navigation or commu-
nication system of the aircraft on 
which it is to be used. 

(c) The determination required by 

paragraph (b)(6) of this section shall be 
made by that part 119 certificate holder 
operating the particular device to be 
used. 

[Doc. No. FAA–1998–4954, 64 FR 1080, Jan. 7, 
1999, as amended by Docket FAA–2014–0554, 
Amdt. 121–374, 81 FR 33118, May 24, 2016] 

§ 121.307 Engine instruments. 

Unless the Administrator allows or 

requires different instrumentation for 

background image

117 

Federal Aviation Administration, DOT 

§ 121.309 

turbine engine powered airplanes to 
provide equivalent safety, no person 
may conduct any operation under this 
part without the following engine in-
struments: 

(a) A carburetor air temperature in-

dicator for each engine. 

(b) A cylinder head temperature indi-

cator for each air-cooled engine. 

(c) A fuel pressure indicator for each 

engine. 

(d) A fuel flowmeter or fuel mixture 

indicator for each engine not equipped 
with an automatic altitude mixture 
control. 

(e) A means for indicating fuel quan-

tity in each fuel tank to be used. 

(f) A manifold pressure indicator for 

each engine. 

(g) An oil pressure indicator for each 

engine. 

(h) An oil quantity indicator for each 

oil tank when a transfer or separate oil 
reserve supply is used. 

(i) An oil-in temperature indicator 

for each engine. 

(j) A tachometer for each engine. 
(k) An independent fuel pressure 

warning device for each engine or a 
master warning device for all engines 
with a means for isolating the indi-
vidual warning circuits from the mas-
ter warning device. 

(l) A device for each reversible pro-

peller, to indicate to the pilot when the 
propeller is in reverse pitch, that com-
plies with the following: 

(1) The device may be actuated at 

any point in the reversing cycle be-
tween the normal low pitch stop posi-
tion and full reverse pitch, but it may 
not give an indication at or above the 
normal low pitch stop position. 

(2) The source of indication must be 

actuated by the propeller blade angle 
or be directly responsive to it. 

§ 121.308 Lavatory fire protection. 

(a) Except as provided in paragraphs 

(c) and (d) of this section, no person 
may operate a passenger-carrying air-
plane unless each lavatory in the air-
plane is equipped with a smoke detec-
tor system or equivalent that provides 
a warning light in the cockpit or pro-
vides a warning light or audio warning 
in the passenger cabin which would be 
readily detected by a flight attendant, 
taking into consideration the posi-

tioning of flight attendants throughout 
the passenger compartment during var-
ious phases of flight. 

(b) Except as provided in paragraph 

(c) of this section, no person may oper-
ate a passenger-carrying airplane un-
less each lavatory in the airplane is 
equipped with a built-in fire extin-
guisher for each disposal receptacle for 
towels, paper, or waste located within 
the lavatory. The built-in fire extin-
guisher must be designed to discharge 
automatically into each disposal recep-
tacle upon occurrence of a fire in the 
receptacle. 

(c) Until December 22, 1997, a certifi-

cate holder described in § 121.2(a) (1) or 
(2) may operate an airplane with a pas-
senger seat configuration of 30 or fewer 
seats that does not comply with the 
smoke detector system requirements 
described in paragraph (a) of this sec-
tion and the fire extinguisher require-
ments described in paragraph (b) of 
this section. 

(d) After December 22, 1997, no person 

may operate a nontransport category 
airplane type certificated after Decem-
ber 31, 1964, with a passenger seat con-
figuration of 10–19 seats unless that 
airplane complies with the smoke de-
tector system requirements described 
in paragraph (a) of this section, except 
that the smoke detector system or 
equivalent must provide a warning 
light in the cockpit or an audio warn-
ing that would be readily detected by 
the flightcrew. 

[Doc. No. 28154, 60 FR 65929, Dec. 20, 1995] 

§ 121.309 Emergency equipment. 

(a) 

General: 

No person may operate 

an airplane unless it is equipped with 
the emergency equipment listed in this 
section and in § 121.310. 

(b) Each item of emergency and flo-

tation equipment listed in this section 
and in §§ 121.310, 121.339, and 121.340— 

(1) Must be inspected regularly in ac-

cordance with inspection periods estab-
lished in the operations specifications 
to ensure its condition for continued 
serviceability and immediate readiness 
to perform its intended emergency pur-
poses; 

(2) Must be readily accessible to the 

crew and, with regard to equipment lo-
cated in the passenger compartment, 
to passengers; 

background image

118 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.309 

(3) Must be clearly identified and 

clearly marked to indicate its method 
of operation; and 

(4) When carried in a compartment or 

container, must be carried in a com-
partment or container marked as to 
contents and the compartment or con-
tainer, or the item itself, must be 
marked as to date of last inspection. 

(c) 

Hand fire extinguishers for crew, 

passenger, cargo, and galley compart-
ments. 

Hand fire extinguishers of an ap-

proved type must be provided for use in 
crew, passenger, cargo, and galley com-
partments in accordance with the fol-
lowing: 

(1) The type and quantity of extin-

guishing agent must be suitable for the 
kinds of fires likely to occur in the 
compartment where the extinguisher is 
intended to be used and, for passenger 
compartments, must be designed to 
minimize the hazard of toxic gas con-
centrations. 

(2) 

Cargo compartments. 

At least one 

hand fire extinguisher must be conven-
iently located for use in each class E 
cargo compartment that is accessible 
to crewmembers during flight. 

(3) 

Galley compartments. 

At least one 

hand fire extinguisher must be conven-
iently located for use in each galley lo-
cated in a compartment other than a 
passenger, cargo, or crew compart-
ment. 

(4) 

Flightcrew compartment. 

At least 

one hand fire extinguisher must be con-
veniently located on the flight deck for 
use by the flightcrew. 

(5) 

Passenger compartments. 

Hand fire 

extinguishers for use in passenger com-
partments must be conveniently lo-
cated and, when two or more are re-
quired, uniformly distributed through-
out each compartment. Hand fire ex-
tinguishers shall be provided in pas-
senger compartments as follows: 

(i) For airplanes having passenger 

seats accommodating more than 6 but 
fewer than 31 passengers, at least one. 

(ii) For airplanes having passenger 

seats accommodating more than 30 but 
fewer than 61 passengers, at least two. 

(iii) For airplanes having passenger 

seats accommodating more than 60 pas-
sengers, there must be at least the fol-
lowing number of hand fire extin-
guishers: 

M

INIMUM

N

UMBER OF

H

AND

F

IRE

 

E

XTINGUISHERS

 

Passenger seating accommodations: 

61 through 200 .................................

201 through 300 ...............................

301 through 400 ...............................

401 through 500 ...............................

501 through 600 ...............................

601 or more .....................................

(6) Notwithstanding the requirement 

for uniform distribution of hand fire 
extinguishers as prescribed in para-
graph (c)(5) of this section, for those 
cases where a galley is located in a pas-
senger compartment, at least one hand 
fire extinguisher must be conveniently 
located and easily accessible for use in 
the galley. 

(7) At least two of the required hand 

fire extinguisher installed in pas-
senger-carrying airplanes must contain 
Halon 1211 
(bromochlorofluoromethane) or equiva-
lent as the extinguishing agent. At 
least one hand fire extinguisher in the 
passenger compartment must contain 
Halon 1211 or equivalent. 

(d) [Reserved] 
(e) 

Crash ax. 

Except for nontransport 

category airplanes type certificated 
after December 31, 1964, each airplane 
must be equipped with a crash ax. 

(f) 

Megaphones. 

Each passenger-car-

rying airplane must have a portable 
battery-powered megaphone or mega-
phones readily accessible to the crew-
members assigned to direct emergency 
evacuation, installed as follows: 

(1) One megaphone on each airplane 

with a seating capacity of more than 60 
and less than 100 passengers, at the 
most rearward location in the pas-
senger cabin where it would be readily 
accessible to a normal flight attendant 
seat. However, the Administrator may 
grant a deviation from the require-
ments of this subparagraph if he finds 
that a different location would be more 
useful for evacuation of persons during 
an emergency. 

(2) Two megaphones in the passenger 

cabin on each airplane with a seating 
capacity of more than 99 passengers, 
one installed at the forward end and 
the other at the most rearward loca-
tion where it would be readily acces-
sible to a normal flight attendant seat. 

[Doc. No. 6258, 29 FR 19205, Dec. 31, 1964] 

background image

119 

Federal Aviation Administration, DOT 

§ 121.310 

E

DITORIAL

N

OTE

: For F

EDERAL

R

EGISTER

ci-

tations affecting § 121.309, see the List of CFR 
Sections Affected, which appears in the 
Finding Aids section of the printed volume 
and at 

www.govinfo.gov. 

§ 121.310 Additional emergency equip-

ment. 

(a) 

Means for emergency evacuation. 

Each passenger-carrying landplane 
emergency exit (other than over-the- 
wing) that is more than 6 feet from the 
ground with the airplane on the ground 
and the landing gear extended, must 
have an approved means to assist the 
occupants in descending to the ground. 
The assisting means for a floor-level 
emergency exit must meet the require-
ments of § 25.809(f)(1) of this chapter in 
effect on April 30, 1972, except that, for 
any airplane for which the application 
for the type certificate was filed after 
that date, it must meet the require-
ments under which the airplane was 
type certificated. An assisting means 
that deploys automatically must be 
armed during taxiing, takeoffs, and 
landings. However, if the Adminis-
trator finds that the design of the exit 
makes compliance impractical, he may 
grant a deviation from the requirement 
of automatic deployment if the assist-
ing means automatically erects upon 
deployment and, with respect to re-
quired emergency exits, if an emer-
gency evacuation demonstration is 
conducted in accordance with 
§ 121.291(a). This paragraph does not 
apply to the rear window emergency 
exit of DC–3 airplanes operated with 
less than 36 occupants, including crew-
members and less than five exits au-
thorized for passenger use. 

(b) 

Interior emergency exit marking. 

The following must be complied with 
for each passenger-carrying airplane: 

(1) Each passenger emergency exit, 

its means of access, and its means of 
opening must be conspicuously 
marked. The identity and location of 
each passenger emergency exit must be 
recognizable from a distance equal to 
the width of the cabin. The location of 
each passenger emergency exit must be 
indicated by a sign visible to occupants 
approaching along the main passenger 
aisle. There must be a locating sign— 

(i) Above the aisle near each over- 

the-wing passenger emergency exit, or 

at another ceiling location if it is more 
practical because of low headroom; 

(ii) Next to each floor level passenger 

emergency exit, except that one sign 
may serve two such exits if they both 
can be seen readily from that sign; and 

(iii) On each bulkhead or divider that 

prevents fore and aft vision along the 
passenger cabin, to indicate emergency 
exits beyond and obscured by it, except 
that if this is not possible the sign may 
be placed at another appropriate loca-
tion. 

(2) Each passenger emergency exit 

marking and each locating sign must 
meet the following: 

(i) Except as provided in paragraph 

(b)(2)(iii) of this section, for an air-
plane for which the application for the 
type certificate was filed prior to May 
1, 1972, each passenger emergency exit 
marking and each locating sign must 
be manufactured to meet the require-
ments of § 25.812(b) of this chapter in ef-
fect on April 30, 1972. On these air-
planes, no sign may continue to be 
used if its luminescence (brightness) 
decreases to below 100 microlamberts. 
The colors may be reversed if it in-
creases the emergency illumination of 
the passenger compartment. However, 
the Administrator may authorize devi-
ation from the 2-inch background re-
quirements if he finds that special cir-
cumstances exist that make compli-
ance impractical and that the proposed 
deviation provides an equivalent level 
of safety. 

(ii) For a transport category airplane 

for which the application for the type 
certificate was filed on or after May 1, 
1972, each passenger emergency exit 
marking and each locating sign must 
be manufactured to meet the interior 
emergency exit marking requirements 
under which the airplane was type cer-
tificated. On these airplanes, no sign 
may continue to be used if its lumines-
cence (brightness) decreases to below 
250 microlamberts. 

(iii) For a nontransport category 

turbopropellerpowered airplane type 
certificated after December 31, 1964, 
each passenger emergency exit mark-
ing and each locating sign must be 
manufactured to have white letters 1 
inch high on a red background 2 inches 

background image

120 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.310 

high, be self-illuminated or independ-
ently, internally electrically illumi-
nated, and have a minimum brightness 
of at least 160 microlamberts. The color 
may be reversed if the passenger com-
partment illumination is essentially 
the same. On these airplanes, no sign 
may continue to be used if its lumines-
cence (brightness) decreases to below 
100 microlamberts. 

(c) 

Lighting for interior emergency exit 

markings. 

Except for nontransport cat-

egory airplanes type certificated after 
December 31, 1964, each passenger-car-
rying airplane must have an emergency 
lighting system, independent of the 
main lighting system. However, 
sources of general cabin illumination 
may be common to both the emergency 
and the main lighting systems if the 
power supply to the emergency light-
ing system is independent of the power 
supply to the main lighting system. 

The emergency lighting system 

must— 

(1) Illuminate each passenger exit 

marking and locating sign; 

(2) Provide enough general lighting 

in the passenger cabin so that the aver-
age illumination when measured at 40- 
inch intervals at seat armrest height, 
on the centerline of the main passenger 
aisle, is at least 0.05 foot-candles; and 

(3) For airplanes type certificated 

after January 1, 1958, after November 
26, 1986, include floor proximity emer-
gency escape path marking which 
meets the requirements of § 25.812(e) of 
this chapter in effect on November 26, 
1984. 

(d) 

Emergency light operation. 

Except 

for lights forming part of emergency 
lighting subsystems provided in com-
pliance with § 25.812(h) of this chapter 
(as prescribed in paragraph (h) of this 
section) that serve no more than one 
assist means, are independent of the 
airplane’s main emergency lighting 
systems, and are automatically acti-
vated when the assist means is de-
ployed, each light required by para-
graphs (c) and (h) of this section must 
comply with the following: 

(1) Each light must— 
(i) Be operable manually both from 

the flightcrew station and, for air-
planes on which a flight attendant is 
required, from a point in the passenger 

compartment that is readily accessible 
to a normal flight attendant seat; 

(ii) Have a means to prevent inad-

vertent operation of the manual con-
trols; and 

(iii) When armed or turned on at ei-

ther station, remain lighted or become 
lighted upon interruption of the air-
plane’s normal electric power. 

(2) Each light must be armed or 

turned on during taxiing, takeoff, and 
landing. In showing compliance with 
this paragraph a transverse vertical 
separation of the fuselage need not be 
considered. 

(3) Each light must provide the re-

quired level of illumination for at least 
10 minutes at the critical ambient con-
ditions after emergency landing. 

(4) Each light must have a cockpit 

control device that has an ‘‘on,’’ ‘‘off,’’ 
and ‘‘armed’’ position. 

(e) 

Emergency exit operating handles. 

(1) For a passenger-carrying airplane 
for which the application for the type 
certificate was filed prior to May 1, 
1972, the location of each passenger 
emergency exit operating handle, and 
instructions for opening the exit, must 
be shown by a marking on or near the 
exit that is readable from a distance of 
30 inches. In addition, for each Type I 
and Type II emergency exit with a 
locking mechanism released by rotary 
motion of the handle, the instructions 
for opening must be shown by— 

(i) A red arrow with a shaft at least 

three-fourths inch wide and a head 
twice the width of the shaft, extending 
along at least 70

° 

of arc at a radius ap-

proximately equal to three-fourths of 
the handle length; and 

(ii) The word ‘‘open’’ in red letters 1 

inch high placed horizontally near the 
head of the arrow. 

(2) For a passenger-carrying airplane 

for which the application for the type 
certificate was filed on or after May 1, 
1972, the location of each passenger 
emergency exit operating handle and 
instructions for opening the exit must 
be shown in accordance with the re-
quirements under which the airplane 
was type certificated. On these air-
planes, no operating handle or oper-
ating handle cover may continue to be 
used if its luminescence (brightness) 
decreases to below 100 microlamberts. 

background image

121 

Federal Aviation Administration, DOT 

§ 121.310 

(f) 

Emergency exit access. 

Access to 

emergency exits must be provided as 
follows for each passenger-carrying 
transport category airplane: 

(1) Each passage way between indi-

vidual passenger areas, or leading to a 
Type I or Type II emergency exit, must 
be unobstructed and at least 20 inches 
wide. 

(2) For each Type I or Type II emer-

gency exit equipped with an assist 
means, there must be enough space 
next to the exit to allow a crewmember 
to assist in the evacuation of pas-
sengers without reducing the unob-
structed width of the passageway below 
that required in paragraph (f)(1) of this 
section. In addition, all airplanes man-
ufactured on or after November 26, 2008 
must comply with the provisions of 
§§ 25.813(b)(1), (b)(2), (b)(3) and (b)(4) in 
effect on November 26, 2004. However, a 
deviation from this requirement may 
be authorized for an airplane certifi-
cated under the provisions of part 4b of 
the Civil Air Regulations in effect be-
fore December 20, 1951, if the Adminis-
trator finds that special circumstances 
exist that provide an equivalent level 
of safety. 

(3) There must be access from the 

main aisle to each Type III and Type 
IV exit. The access from the aisle to 
these exits must not be obstructed by 
seats, berths, or other protrusions in a 
manner that would reduce the effec-
tiveness of the exit. In addition— 

(i) For an airplane for which the ap-

plication for the type certificate was 
filed prior to May 1, 1972, the access 
must meet the requirements of 
§ 25.813(c) of this chapter in effect on 
April 30, 1972; and 

(ii) For an airplane for which the ap-

plication for the type certificate was 
filed on or after May 1, 1972, the access 
must meet the emergency exit access 
requirements under which the airplane 
was type certificated; except that, 

(iii) After December 3, 1992, the ac-

cess for an airplane type certificated 
after January 1, 1958, must meet the re-
quirements of § 25.813(c) of this chapter, 
effective June 3, 1992. 

(iv) Contrary provisions of this sec-

tion notwithstanding, the Director of 
the division of the Aircraft Certifi-
cation Service responsible for the air-
worthiness rules may authorize devi-

ation from the requirements of para-
graph (f)(3)(iii) of this section if it is 
determined that special circumstances 
make compliance impractical. Such 
special circumstances include, but are 
not limited to, the following conditions 
when they preclude achieving compli-
ance with § 25.813(c)(1)(i) or (ii) without 
a reduction in the total number of pas-
senger seats: emergency exits located 
in close proximity to each other; fixed 
installations such as lavatories, gal-
leys, etc.; permanently mounted bulk-
heads; an insufficient number of rows 
ahead of or behind the exit to enable 
compliance without a reduction in the 
seat row pitch of more than one inch; 
or an insufficient number of such rows 
to enable compliance without a reduc-
tion in the seat row pitch to less than 
30 inches. A request for such grant of 
deviation must include credible rea-
sons as to why literal compliance with 
§ 25.813(c)(1)(i) or (ii) is impractical and 
a description of the steps taken to 
achieve a level of safety as close to 
that intended by § 25.813(c)(1)(i) or (ii) 
as is practical. 

(v) The Director of the division of the 

Aircraft Certification Service respon-
sible for the airworthiness rules may 
also authorize a compliance date later 
than December 3, 1992, if it is deter-
mined that special circumstances 
make compliance by that date imprac-
tical. A request for such grant of devi-
ation must outline the airplanes for 
which compliance will be achieved by 
December 3, 1992, and include a pro-
posed schedule for incremental compli-
ance of the remaining airplanes in the 
operator’s fleet. In addition, the re-
quest must include credible reasons 
why compliance cannot be achieved 
earlier. 

(4) If it is necessary to pass through 

a passageway between passenger com-
partments to reach any required emer-
gency exit from any seat in the pas-
senger cabin, the passageway must not 
be obstructed. However, curtains may 
be used if they allow free entry 
through the passageway. 

(5) No door may be installed in any 

partition between passenger compart-
ments. 

(6) No person may operate an air-

plane manufactured after November 27, 
2006, that incorporates a door installed 

background image

122 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.310 

between any passenger seat occupiable 
for takeoff and landing and any pas-
senger emergency exit, such that the 
door crosses any egress path (including 
aisles, crossaisles and passageways). 

(7) If it is necessary to pass through 

a doorway separating the passenger 
cabin from other areas to reach re-
quired emergency exit from any pas-
senger seat, the door must have a 
means to latch it in open position, and 
the door must be latched open during 
each takeoff and landing. The latching 
means must be able to withstand the 
loads imposed upon it when the door is 
subjected to the ultimate inertia 
forces, relative to the surrounding 
structure, listed in § 25.561(b) of this 
chapter. 

(g) 

Exterior exit markings. 

Each pas-

senger emergency exit and the means 
of opening that exit from the outside 
must be marked on the outside of the 
airplane. There must be a 2-inch col-
ored band outlining each passenger 
emergency exit on the side of the fuse-
lage. Each outside marking, including 
the band, must be readily distinguish-
able from the surrounding fuselage 
area by contrast in color. The mark-
ings must comply with the following: 

(1) If the reflectance of the darker 

color is 15 percent or less, the reflec-
tance of the lighter color must be at 
least 45 percent. 

(2) If the reflectance of the darker 

color is greater than 15 percent, at 
least a 30 percent difference between 
its reflectance and the reflectance of 
the lighter color must be provided. 

(3) Exits that are not in the side of 

the fuselage must have the external 
means of opening and applicable in-
structions marked conspicuously in red 
or, if red is inconspicuous against the 
background color, in bright chrome 
yellow and, when the opening means 
for such an exit is located on only one 
side of the fuselage, a conspicuous 
marking to that effect must be pro-
vided on the other side. 

Reflectance 

is 

the ratio of the luminous flux reflected 
by a body to the luminous flux it re-
ceives. 

(h) 

Exterior emergency lighting and es-

cape route. 

(1) Except for nontransport 

category airplanes certificated after 
December 31, 1964, each passenger-car-
rying airplane must be equipped with 

exterior lighting that meets the fol-
lowing requirements: 

(i) For an airplane for which the ap-

plication for the type certificate was 
filed prior to May 1, 1972, the require-
ments of § 25.812 (f) and (g) of this chap-
ter in effect on April 30, 1972. 

(ii) For an airplane for which the ap-

plication for the type certificate was 
filed on or after May 1, 1972, the exte-
rior emergency lighting requirements 
under which the airplane was type cer-
tificated. 

(2) Each passenger-carrying airplane 

must be equipped with a slip-resistant 
escape route that meets the following 
requirements: 

(i) For an airplane for which the ap-

plication for the type certificate was 
filed prior to May 1, 1972, the require-
ments of § 25.803(e) of this chapter in ef-
fect on April 30, 1972. 

(ii) For an airplane for which the ap-

plication for the type certificate was 
filed on or after May 1, 1972, the slip-re-
sistant escape route requirements 
under which the airplane was type cer-
tificated. 

(i) 

Floor level exits. 

Each floor level 

door or exit in the side of the fuselage 
(other than those leading into a cargo 
or baggage compartment that is not 
accessible from the passenger cabin) 
that is 44 or more inches high and 20 or 
more inches wide, but not wider than 
46 inches, each passenger ventral exit 
(except the ventral exits on M–404 and 
CV–240 airplanes), and each tail cone 
exit, must meet the requirements of 
this section for floor level emergency 
exits. However, the Administrator may 
grant a deviation from this paragraph 
if he finds that circumstances make 
full compliance impractical and that 
an acceptable level of safety has been 
achieved. 

(j) 

Additional emergency exits. 

Ap-

proved emergency exits in the pas-
senger compartments that are in ex-
cess of the minimum number of re-
quired emergency exits must meet all 
of the applicable provisions of this sec-
tion except paragraphs (f)(1), (2), and 
(3) of this section and must be readily 
accessible. 

(k) On each large passenger-carrying 

turbojet-powered airplane, each ven-
tral exit and tailcone exit must be— 

background image

123 

Federal Aviation Administration, DOT 

§ 121.311 

(1) Designed and constructed so that 

it cannot be opened during flight; and 

(2) Marked with a placard readable 

from a distance of 30 inches and in-
stalled at a conspicuous location near 
the means of opening the exit, stating 
that the exit has been designed and 
constructed so that it cannot be opened 
during flight. 

(l) 

Emergency exit features. 

(1) Each 

transport category airplane manufac-
tured after 

November 26, 2007 

must com-

ply with the provisions of § 25.809(i) and 

(2) After November 26, 2007 each 

transport category airplane must com-
ply with the provisions of 
§ 25.813(b)(6)(ii) in effect on November 
26, 2007. 

(m) Except for an airplane used in op-

erations under this part on October 16, 
1987, and having an emergency exit 
configuration installed and authorized 
for operation prior to October 16, 1987, 
for an airplane that is required to have 
more than one passenger emergency 
exit for each side of the fuselage, no 
passenger emergency exit shall be 
more than 60 feet from any adjacent 
passenger emergency exit on the same 
side of the same deck of the fuselage, 
as measured parallel to the airplane’s 
longitudinal axis between the nearest 
exit edges. 

(n) 

Portable lights. 

No person may op-

erate a passenger-carrying airplane un-
less it is equipped with flashlight stow-
age provisions accessible from each 
flight attendant seat. 

[Doc. No. 2033, 30 FR 3205, Mar. 9, 1965] 

E

DITORIAL

N

OTE

: For F

EDERAL

R

EGISTER

ci-

tations affecting § 121.310, see the List of CFR 
Sections Affected, which appears in the 
Finding Aids section of the printed volume 
and at 

www.govinfo.gov. 

§ 121.311 Seats, safety belts, and shoul-

der harnesses. 

(a) No person may operate an air-

plane unless there are available during 
the takeoff, en route flight, and land-
ing— 

(1) An approved seat or berth for each 

person on board the airplane who has 
reached his second birthday; and 

(2) An approved safety belt for sepa-

rate use by each person on board the 
airplane who has reached his second 
birthday, except that two persons occu-
pying a berth may share one approved 

safety belt and two persons occupying 
a multiple lounge or divan seat may 
share one approved safety belt during 
en route flight only. 

(b) Except as provided in this para-

graph, each person on board an air-
plane operated under this part shall oc-
cupy an approved seat or berth with a 
separate safety belt properly secured 
about him or her during movement on 
the surface, takeoff, and landing. A 
safety belt provided for the occupant of 
a seat may not be used by more than 
one person who has reached his or her 
second birthday. Notwithstanding the 
preceding requirements, a child may: 

(1) Be held by an adult who is occu-

pying an approved seat or berth, pro-
vided the child has not reached his or 
her second birthday and the child does 
not occupy or use any restraining de-
vice; or 

(2) Notwithstanding any other re-

quirement of this chapter, occupy an 
approved child restraint system fur-
nished by the certificate holder or one 
of the persons described in paragraph 
(b)(2)(i) of this section, provided: 

(i) The child is accompanied by a par-

ent, guardian, or attendant designated 
by the child’s parent or guardian to at-
tend to the safety of the child during 
the flight; 

(ii) Except as provided in paragraph 

(b)(2)(ii)(D) of this section, the ap-
proved child restraint system bears one 
or more labels as follows: 

(A) Seats manufactured to U.S. 

standards between January 1, 1981, and 
February 25, 1985, must bear the label: 
‘‘This child restraint system conforms 
to all applicable Federal motor vehicle 
safety standards.’’ 

(B) Seats manufactured to U.S. 

standards on or after February 26, 1985, 
must bear two labels: 

(

1

) ‘‘This child restraint system con-

forms to all applicable Federal motor 
vehicle safety standards’’; and 

(

2

) ‘‘THIS RESTRAINT IS CER-

TIFIED FOR USE IN MOTOR VEHI-
CLES AND AIRCRAFT’’ in red let-
tering; 

(C) Seats that do not qualify under 

paragraphs (b)(2)(ii)(A) and (b)(2)(ii)(B) 
of this section must bear a label or 
markings showing: 

(

1

) That the seat was approved by a 

foreign government; 

background image

124 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.311 

(

2

) That the seat was manufactured 

under the standards of the United Na-
tions; 

(

3

) That the seat or child restraint 

device furnished by the certificate 
holder was approved by the FAA 
through Type Certificate or Supple-
mental Type Certificate; or 

(

4

) That the seat or child restraint 

device furnished by the certificate 
holder, or one of the persons described 
in paragraph (b)(2)(i) of this section, 
was approved by the FAA in accord-
ance with § 21.8(d) of this chapter or 
Technical Standard Order C–100b, or a 
later version. The child restraint de-
vice manufactured by AmSafe, Inc. 
(CARES, Part No. 4082) and approved 
by the FAA in accordance with 
§ 21.305(d) (2010 ed.) of this chapter may 
continue to bear a label or markings 
showing FAA approval in accordance 
with § 21.305(d) (2010 ed.) of this chapter. 

(D) Except as provided in 

§ 121.311(b)(2)(ii)(C)(

3

) and 

§ 121.311(b)(2)(ii)(C)(

4

), booster-type 

child restraint systems (as defined in 
Federal Motor Vehicle Safety Standard 
No. 213 (49 CFR 571.213)), vest- and har-
ness-type child restraint systems, and 
lap held child restraints are not ap-
proved for use in aircraft; and 

(iii) The certificate holder complies 

with the following requirements: 

(A) The restraint system must be 

properly secured to an approved for-
ward-facing seat or berth; 

(B) The child must be properly se-

cured in the restraint system and must 
not exceed the specified weight limit 
for the restraint system; and 

(C) The restraint system must bear 

the appropriate label(s). 

(c) Except as provided in paragraph 

(c)(3) of this section, the following pro-
hibitions apply to certificate holders: 

(1) Except as provided in 

§ 121.311(b)(2)(ii)(C)(

3

) and 

§ 121.311(b)(2)(ii)(C)(

4

), no certificate 

holder may permit a child, in an air-
craft, to occupy a booster-type child 
restraint system, a vest-type child re-
straint system, a harness-type child re-
straint system, or a lap held child re-
straint system during take off, landing, 
and movement on the surface. 

(2) Except as required in paragraph 

(c)(1) of this section, no certificate 
holder may prohibit a child, if re-

quested by the child’s parent, guardian, 
or designated attendant, from occu-
pying a child restraint system fur-
nished by the child’s parent, guardian, 
or designated attendant provided— 

(i) The child holds a ticket for an ap-

proved seat or berth or such seat or 
berth is otherwise made available by 
the certificate holder for the child’s 
use; 

(ii) The requirements of paragraph 

(b)(2)(i) of this section are met; 

(iii) The requirements of paragraph 

(b)(2)(iii) of this section are met; and 

(iv) The child restraint system has 

one or more of the labels described in 
paragraphs (b)(2)(ii)(A) through 
(b)(2)(ii)(C) of this section. 

(3) This section does not prohibit the 

certificate holder from providing child 
restraint systems authorized by this 
section or, consistent with safe oper-
ating practices, determining the most 
appropriate passenger seat location for 
the child restraint system. 

(d) Each sideward facing seat must 

comply with the applicable require-
ments of § 25.785(c) of this chapter. 

(e) Except as provided in paragraphs 

(e)(1) through (e)(3) of this section, no 
certificate holder may take off or land 
an airplane unless each passenger seat 
back is in the upright position. Each 
passenger shall comply with instruc-
tions given by a crewmember in com-
pliance with this paragraph. 

(1) This paragraph does not apply to 

seat backs placed in other than the up-
right position in compliance with 
§ 121.310(f)(3). 

(2) This paragraph does not apply to 

seats on which cargo or persons who 
are unable to sit erect for a medical 
reason are carried in accordance with 
procedures in the certificate holder’s 
manual if the seat back does not ob-
struct any passenger’s access to the 
aisle or to any emergency exit. 

(3) On airplanes with no flight at-

tendant, the certificate holder may 
take off or land as long as the 
flightcrew instructs each passenger to 
place his or her seat back in the up-
right position for takeoff and landing. 

(f) No person may operate a transport 

category airplane that was type certifi-
cated after January 1, 1958, or a non-
transport category airplane manufac-
tured after March 20, 1997, unless it is 

background image

125 

Federal Aviation Administration, DOT 

§ 121.312 

equipped at each flight deck station 
with a combined safety belt and shoul-
der harness that meets the applicable 
requirements specified in § 25.785 of this 
chapter, effective March 6, 1980, except 
that— 

(1) Shoulder harnesses and combined 

safety belt and shoulder harnesses that 
were approved and installed before 
March 6, 1980, may continue to be used; 
and 

(2) Safety belt and shoulder harness 

restraint systems may be designed to 
the inertia load factors established 
under the certification basis of the air-
plane. 

(g) Each flight attendant must have a 

seat for takeoff and landing in the pas-
senger compartment that meets the re-
quirements of § 25.785 of this chapter, 
effective March 6, 1980, except that— 

(1) Combined safety belt and shoulder 

harnesses that were approved and in-
stalled before March, 6, 1980, may con-
tinue to be used; and 

(2) Safety belt and shoulder harness 

restraint systems may be designed to 
the inertia load factors established 
under the certification basis of the air-
plane. 

(3) The requirements of § 25.785(h) do 

not apply to passenger seats occupied 
by flight attendants not required by 
§ 121.391. 

(h) Each occupant of a seat equipped 

with a shoulder harness or with a com-
bined safety belt and shoulder harness 
must have the shoulder harness or 
combined safety belt and shoulder har-
ness properly secured about that occu-
pant during takeoff and landing, except 
that a shoulder harness that is not 
combined with a safety belt may be un-
fastened if the occupant cannot per-
form the required duties with the 
shoulder harness fastened. 

(i) At each unoccupied seat, the safe-

ty belt and shoulder harness, if in-
stalled, must be secured so as not to 
interfere with crewmembers in the per-
formance of their duties or with the 
rapid egress of occupants in an emer-
gency. 

(j) After October 27, 2009, no person 

may operate a transport category air-
plane type certificated after January 1, 
1958 and manufactured on or after Oc-
tober 27, 2009 in passenger-carrying op-
erations under this part unless all pas-

senger and flight attendant seats on 
the airplane meet the requirements of 
§ 25.562 in effect on or after June 16, 
1988. 

(k) 

Seat dimension disclosure. 

(1) Each 

air carrier that conducts operations 
under this part and that has a Web site 
must make available on its Web site 
the width of the narrowest and widest 
passenger seats in each class of service 
for each airplane make, model and se-
ries operated by that air carrier in pas-
senger-carrying operations. 

(2) For purposes of paragraph (k)(1) of 

this section, the width of a passenger 
seat means the distance between the 
inside of the armrests for that seat. 

[Doc. No. 7522, 32 FR 13267, Sept. 20, 1967] 

E

DITORIAL

N

OTE

: For F

EDERAL

R

EGISTER

ci-

tations affecting § 121.311, see the List of CFR 
Sections Affected, which appears in the 
Finding Aids section of the printed volume 
and at 

www.govinfo.gov. 

§ 121.312 Materials for compartment 

interiors. 

(a) 

All interior materials; transport cat-

egory airplanes and nontransport cat-
egory airplanes type certificated before 
January 1, 1965. 

Except for the mate-

rials covered by paragraph (b) of this 
section, all materials in each compart-
ment of a transport category airplane, 
or a nontransport category airplane 
type certificated before January 1, 1965, 
used by the crewmembers and pas-
sengers, must meet the requirements of 
§ 25.853 of this chapter in effect as fol-
lows, or later amendment thereto: 

(1) 

Airplane with passenger seating ca-

pacity of 20 or more

—(i) 

Manufactured 

after August 19, 1988, but prior to August 
20, 1990. 

Except as provided in para-

graph (a)(3)(ii) of this section, each air-
plane with a passenger capacity of 20 or 
more and manufactured after August 
19, 1988, but prior to August 20, 1990, 
must comply with the heat release rate 
testing provisions of § 25.853(d) in effect 
March 6, 1995 (formerly § 25.853(a–1) in 
effect on August 20, 1986) (see App. L of 
this part), except that the total heat 
release over the first 2 minutes of sam-
ple exposure must not exceed 100 kilo-
watt minutes per square meter and the 
peak heat release rate must not exceed 
100 kilowatts per square meter. 

background image

126 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.312 

(ii) 

Manufactured after August 19, 1990. 

Each airplane with a passenger capac-
ity of 20 or more and manufactured 
after August 19, 1990, must comply with 
the heat release rate and smoke testing 
provisions of § 25.853(d) in effect March 
6, 1995 (formerly § 25.853(a–1)(see app. L 
of this part) in effect on September 26, 
1988). 

(2) 

Substantially complete replacement 

of the cabin interior on or after May 1, 
1972

—(i) 

Airplane for which the applica-

tion for type certificate was filed prior to 
May 1, 1972. 

Except as provided in para-

graph (a)(3)(i) or (a)(3)(ii) of this sec-
tion, each airplane for which the appli-
cation for type certificate was filed 
prior to May 1, 1972, must comply with 
the provisions of § 25.853 in effect on 
April 30, 1972, regardless of passenger 
capacity, if there is a substantially 
complete replacement of the cabin in-
terior after April 30, 1972. 

(ii) 

Airplane for which the application 

for type certificate was filed on or after 
May 1, 1972. 

Except as provided in para-

graph (a)(3)(i) or (a)(3)(ii) of this sec-
tion, each airplane for which the appli-
cation for type certificate was filed on 
or after May 1, 1972, must comply with 
the material requirements under which 
the airplane was type certificated, re-
gardless of passenger capacity, if there 
is a substantially complete replace-
ment of the cabin interior on or after 
that date. 

(3) 

Airplane type certificated after Jan-

uary 1, 1958, with passenger capacity of 20 
or more

—(i) 

Substantially complete re-

placement of the cabin interior on or after 
March 6, 1995. 

Except as provided in 

paragraph (a)(3)(ii) of this section, each 
airplane that was type certificated 
after January 1, 1958, and has a pas-
senger capacity of 20 or more, must 
comply with the heat release rate test-
ing provisions of § 25.853(d) in effect 
March 6, 1995 (formerly § 25.853(a–1) in 
effect on August 20, 1986)(see app. L of 
this part), if there is a substantially 
complete replacement of the cabin in-
terior components identified in 
§ 25.853(d), on or after that date, except 
that the total heat release over the 
first 2 minutes of sample exposure shall 
not exceed 100 kilowatt-minutes per 
square meter and the peak heat release 
rate must not exceed 100 kilowatts per 
square meter. 

(ii) 

Substantially complete replacement 

of the cabin interior on or after August 20, 
1990. 

Each airplane that was type cer-

tificated after January 1, 1958, and has 
a passenger capacity of 20 or more, 
must comply with the heat release rate 
and smoke testing provisions of 
§ 25.853(d) in effect March 6, 1995 (for-
merly § 25.853(a–1) in effect on Sep-
tember 26, 1988)(see app. L of this part), 
if there is a substantially complete re-
placement of the cabin interior compo-
nents identified in § 25.853(d), on or 
after August 20, 1990. 

(4) Contrary provisions of this sec-

tion notwithstanding, the Director of 
the division of the Aircraft Certifi-
cation Service responsible for the air-
worthiness rules may authorize devi-
ation from the requirements of para-
graph (a)(1)(i), (a)(1)(ii), (a)(3)(i), or 
(a)(3)(ii) of this section for specific 
components of the cabin interior that 
do not meet applicable flammability 
and smoke emission requirements, if 
the determination is made that special 
circumstances exist that make compli-
ance impractical. Such grants of devi-
ation will be limited to those airplanes 
manufactured within 1 year after the 
applicable date specified in this section 
and those airplanes in which the inte-
rior is replaced within 1 year of that 
date. A request for such grant of devi-
ation must include a thorough and ac-
curate analysis of each component sub-
ject to § 25.853(a–1), the steps being 
taken to achieve compliance, and, for 
the few components for which timely 
compliance will not be achieved, cred-
ible reasons for such noncompliance. 

(5) Contrary provisions of this sec-

tion notwithstanding, galley carts and 
galley standard containers that do not 
meet the flammability and smoke 
emission requirements of § 25.853(d) in 
effect March 6, 1995 (formerly § 25.853(a– 
1)) (see app. L of this part) may be used 
in airplanes that must meet the re-
quirements of paragraphs (a)(1)(i), 
(a)(1)(ii), (a)(3)(i), or (a)(3)(ii) of this 
section, provided the galley carts or 
standard containers were manufac-
tured prior to March 6, 1995. 

(b) 

Seat cushions. 

Seat cushions, ex-

cept those on flight crewmember seats, 
in each compartment occupied by crew 
or passengers, must comply with the 

background image

127 

Federal Aviation Administration, DOT 

§ 121.313 

requirements pertaining to seat cush-
ions in § 25.853(c) effective on November 
26, 1984, on each airplane as follows: 

(1) Each transport category airplane 

type certificated after January 1, 1958; 
and 

(2) On or after December 20, 2010, 

each nontransport category airplane 
type certificated after December 31, 
1964. 

(c) 

All interior materials; airplanes type 

certificated in accordance with SFAR No. 
41 of 14 CFR part 21. 

No person may op-

erate an airplane that conforms to an 
amended or supplemental type certifi-
cate issued in accordance with SFAR 
No. 41 of 14 CFR part 21 for a maximum 
certificated takeoff weight in excess of 
12,500 pounds unless the airplane meets 
the compartment interior require-
ments set forth in § 25.853(a) in effect 
March 6, 1995 (formerly § 25.853(a), (b), 
(b–1), (b–2), and (b–3) of this chapter in 
effect on September 26, 1978)(see app. L 
of this part). 

(d) 

All interior materials; other air-

planes. 

For each material or seat cush-

ion to which a requirement in para-
graphs (a), (b), or (c) of this section 
does not apply, the material and seat 
cushion in each compartment used by 
the crewmembers and passengers must 
meet the applicable requirement under 
which the airplane was type certifi-
cated. 

(e) Thermal/acoustic insulation ma-

terials. For transport category air-
planes type certificated after January 
1, 1958: 

(1) For airplanes manufactured before 

September 2, 2005, when thermal/acous-
tic insulation is installed in the fuse-
lage as replacements after September 
2, 2005, the insulation must meet the 
flame propagation requirements of 
§ 25.856 of this chapter, effective Sep-
tember 2, 2003, if it is: 

(i) Of a blanket construction or 
(ii) Installed around air ducting. 
(2) For airplanes manufactured after 

September 2, 2005, thermal/acoustic in-
sulation materials installed in the fu-
selage must meet the flame propaga-
tion requirements of § 25.856 of this 
chapter, effective September 2, 2003. 

(3) For airplanes with a passenger ca-

pacity of 20 or greater, manufactured 
after September 2, 2009, thermal/acous-
tic insulation materials installed in 

the lower half of the fuselage must 
meet the flame penetration resistance 
requirements of § 25.856 of this chapter, 
effective September 2, 2003. 

[Doc. No. 28154, 60 FR 65930, Dec. 20, 1995, as 
amended by Amdt. 121–301, 68 FR 45083, July 
31, 2003; Amdt. 121–320, 70 FR 77752, Dec. 30, 
2005; Amdt. 121–330, 72 FR 1442, Jan. 12, 2007; 
Docket FAA–2018–0119, Amdt. 121–380, 83 FR 
9173, Mar. 5, 2018] 

§ 121.313 Miscellaneous equipment. 

No person may conduct any oper-

ation unless the following equipment is 
installed in the airplane: 

(a) If protective fuses are installed on 

an airplane, the number of spare fuses 
approved for that airplane and appro-
priately described in the certificate 
holder’s manual. 

(b) A windshield wiper or equivalent 

for each pilot station. 

(c) A power supply and distribution 

system that meets the requirements of 
§§ 25.1309, 25.1331, 25.1351(a) and (b)(1) 
through (4), 25.1353, 25.1355, and 
25.1431(b) or that is able to produce and 
distribute the load for the required in-
struments and equipment, with use of 
an external power supply if any one 
power source or component of the 
power distribution system fails. The 
use of common elements in the system 
may be approved if the Administrator 
finds that they are designed to be rea-
sonably protected against malfunc-
tioning. Engine-driven sources of en-
ergy, when used, must be on separate 
engines. 

(d) A means for indicating the ade-

quacy of the power being supplied to 
required flight instruments. 

(e) Two independent static pressure 

systems, vented to the outside atmos-
pheric pressure so that they will be 
least affected by air flow variation or 
moisture or other foreign matter, and 
installed so as to be airtight except for 
the vent. When a means is provided for 
transferring an instrument from its 
primary operating system to an alter-
nate system, the means must include a 
positive positioning control and must 
be marked to indicate clearly which 
system is being used. 

(f) A door between the passenger and 

pilot compartments (

i.e.

, flightdeck 

door), with a locking means to prevent 
passengers from opening it without the 

background image

128 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.314 

pilot’s permission, except that non-
transport category airplanes certifi-
cated after December 31, 1964, are not 
required to comply with this para-
graph. For airplanes equipped with a 
crew rest area having separate entries 
from the flightdeck and the passenger 
compartment, a door with such a lock-
ing means must be provided between 
the crew rest area and the passenger 
compartment. 

(g) A key for each door that sepa-

rates a passenger compartment from 
another compartment that has emer-
gency exit provisions. Except for 
flightdeck doors, a key must be readily 
available for each crewmember. Except 
as provided below, no person other 
than a person who is assigned to per-
form duty on the flightdeck may have 
a key to the flightdeck door. Before 
April 22, 2003, any crewmember may 
have a key to the flightdeck door but 
only if the flightdeck door has an in-
ternal flightdeck locking device in-
stalled, operative, and in use. Such 
‘‘internal flightdeck locking device’’ 
has to be designed so that it can only 
be unlocked from inside the flightdeck. 

(h) A placard on each door that is the 

means of access to a required passenger 
emergency exit, to indicate that it 
must be open during takeoff and land-
ing. 

(i) A means for the crew, in an emer-

gency to unlock each door that leads to 
a compartment that is normally acces-
sible to passengers and that can be 
locked by passengers. 

(j) After April 9, 2003, for airplanes 

required by paragraph (f) of this sec-
tion to have a door between the pas-
senger and pilot or crew rest compart-
ments, and for transport category, all- 
cargo airplanes that have a door in-
stalled between the pilot compartment 
and any other occupied compartment 
on January 15, 2002; 

(1) After April 9, 2003, for airplanes 

required by paragraph (f) of this sec-
tion to have a door between the pas-
senger and pilot or crew rest compart-
ments, 

(i) Each such door must meet the re-

quirements of § 25.795(a)(1) and (2) in ef-
fect on January 15, 2002; and 

(ii) Each operator must establish 

methods to enable a flight attendant to 
enter the pilot compartment in the 

event that a flightcrew member be-
comes incapacitated. Any associated 
signal or confirmation system must be 
operable by each flightcrew member 
from that flightcrew member’s duty 
station. 

(2) After October 1, 2003, for transport 

category, all-cargo airplanes that had a 
door installed between the pilot com-
partment and any other occupied com-
partment on or after January 15, 2002, 
each such door must meet the require-
ments of § 25.795(a)(1) and (2) in effect 
on January 15, 2002; or the operator 
must implement a security program 
approved by the Transportation Secu-
rity Administration (TSA) for the oper-
ation of all airplanes in that operator’s 
fleet. 

(k) Except for all-cargo operations as 

defined in § 110.2 of this chapter, for all 
passenger-carrying airplanes that re-
quire a lockable flightdeck door in ac-
cordance with paragraph (f) of this sec-
tion, a means to monitor from the 
flightdeck side of the door the area 
outside the flightdeck door to identify 
persons requesting entry and to detect 
suspicious behavior and potential 
threats. 

(l) For airplanes required by para-

graph (f) of this section to have a door 
between the passenger and pilot or 
crew rest compartments, and for pas-
senger-carrying transport category air-
planes that have a door installed be-
tween the pilot compartment and any 
other occupied compartment, that were 
manufactured after August 25, 2025, an 
installed physical secondary barrier 
(IPSB) that meets the requirements of 
§ 25.795(a)(4) of this chapter in effect on 
August 25, 2023. 

[Doc. No. 6258, 29 FR 19205, Dec. 31, 1964, as 
amended by Amdt. 121–5, 30 FR 6113, Apr. 30, 
1965; Amdt. 121–251, 60 FR 65931, Dec. 20, 1995; 
Amdt. 121–288, 67 FR 2127, Jan. 15, 2002; Amdt. 
121–299, 68 FR 42881, July 18, 2003; Amdt. 121– 
334, 72 FR 45635, Aug. 15, 2007; Amdt. 121–353, 
76 FR 7488, Feb. 10, 2011; Amdt. No. 121–389, 88 
FR 41308, June 26, 2023] 

§ 121.314 Cargo and baggage compart-

ments. 

For each transport category airplane 

type certificated after January 1, 1958: 

(a) Each Class C or Class D compart-

ment, as defined in § 25.857 of this Chap-
ter in effect on June 16, 1986 (see Ap-
pendix L to this part), that is greater 

background image

129 

Federal Aviation Administration, DOT 

§ 121.317 

than 200 cubic feet in volume must 
have ceiling and sidewall liner panels 
which are constructed of: 

(1) Glass fiber reinforced resin; 
(2) Materials which meet the test re-

quirements of part 25, appendix F, part 
III of this chapter; or 

(3) In the case of liner installations 

approved prior to March 20, 1989, alu-
minum. 

(b) For compliance with paragraph 

(a) of this section, the term ‘‘liner’’ in-
cludes any design feature, such as a 
joint or fastener, which would affect 
the capability of the liner to safely 
contain a fire. 

(c) After March 19, 2001, each Class D 

compartment, regardless of volume, 
must meet the standards of §§ 25.857(c) 
and 25.858 of this Chapter for a Class C 
compartment unless the operation is 
an all-cargo operation in which case 
each Class D compartment may meet 
the standards in § 25.857(e) for a Class E 
compartment. 

(d) 

Reports of conversions and retrofits. 

(1) Until such time as all Class D com-
partments in aircraft operated under 
this part by the certificate have been 
converted or retrofitted with appro-
priate detection and suppression sys-
tems, each certificate holder must sub-
mit written progress reports to the 
FAA that contain the information 
specified below. 

(i) The serial number of each airplane 

listed in the operations specifications 
issued to the certificate holder for op-
eration under this part in which all 
Class D compartments have been con-
verted to Class C or Class E compart-
ments; 

(ii) The serial number of each air-

plane listed in the operations specifica-
tion issued to the certificate holder for 
operation under this part, in which all 
Class D compartments have been retro-
fitted to meet the fire detection and 
suppression requirements for Class C or 
the fire detection requirements for 
Class E; and 

(iii) The serial number of each air-

plane listed in the operations specifica-
tions issued to the certificate holder 
for operation under this part that has 
at least one Class D compartment that 
has not been converted or retrofitted. 

(2) The written report must be sub-

mitted to the responsible Flight Stand-

ards office by July 1, 1998, and at each 
three-month interval thereafter. 

[Doc. No. 28937, 63 FR 8049, Feb. 17, 1998, as 
amended by Docket FAA–2018–0119, Amdt. 
121–380, 83 FR 9173, Mar. 5, 2018] 

§ 121.315 Cockpit check procedure. 

(a) Each certificate holder shall pro-

vide an approved cockpit check proce-
dure for each type of aircraft. 

(b) The approved procedures must in-

clude each item necessary for flight 
crewmembers to check for safety be-
fore starting engines, taking off, or 
landing, and in engine and systems 
emergencies. The procedures must be 
designed so that a flight crewmember 
will not need to rely upon his memory 
for items to be checked. 

(c) The approved procedures must be 

readily usable in the cockpit of each 
aircraft and the flight crew shall follow 
them when operating the aircraft. 

§ 121.316 Fuel tanks. 

Each turbine powered transport cat-

egory airplane operated after October 
30, 1991, must meet the requirements of 
§ 25.963(e) of this chapter in effect on 
October 30, 1989. 

[Doc. No. 25614, 54 FR 40354, Sept. 29, 1989] 

§ 121.317 Passenger information re-

quirements, smoking prohibitions, 

and additional seat belt require-

ments. 

(a) Except as provided in paragraph 

(l) of this section, no person may oper-
ate an airplane unless it is equipped 
with passenger information signs that 
meet the requirements of § 25.791 of this 
chapter. Except as provided in para-
graph (l) of this section, the signs must 
be constructed so that the crew-
members can turn them on and off. 

(b) Except as provided in paragraph 

(l) of this section, the ‘‘Fasten Seat 
Belt’’ sign shall be turned on during 
any movement on the surface, for each 
takeoff, for each landing, and at any 
other time considered necessary by the 
pilot in command. 

(c) No person may operate an air-

plane on a flight on which smoking is 
prohibited by part 252 of this title un-
less either the ‘‘No Smoking’’ pas-
senger information signs are lighted 
during the entire flight, or one or more 
‘‘No Smoking’’ placards meeting the 

background image

130 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.318 

requirements of § 25.1541 of this chapter 
are posted during the entire flight seg-
ment. If both the lighted signs and the 
placards are used, the signs must re-
main lighted during the entire flight 
segment. 

(d) No person may operate a pas-

senger-carrying airplane under this 
part unless at least one legible sign or 
placard that reads ‘‘Fasten Seat Belt 
While Seated’’ is visible from each pas-
senger seat. These signs or placards 
need not meet the requirements of 
paragraph (a) of this section. 

(e) No person may operate an air-

plane unless there is installed in each 
lavatory a sign or placard that reads: 
‘‘Federal law provides for a penalty of 
up to $2,000 for tampering with the 
smoke detector installed in this lava-
tory.’’ These signs or placards need not 
meet the requirements of paragraph (a) 
of this section. 

(f) Each passenger required by 

§ 121.311(b) to occupy a seat or berth 
shall fasten his or her safety belt about 
him or her and keep it fastened while 
the ‘‘Fasten Seat Belt’’ sign is lighted. 

(g) No person may smoke while a ‘‘No 

Smoking’’ sign is lighted or while ‘‘No 
Smoking’’ placards are posted, except 
as follows: 

(1) 

Supplemental operations. 

The pilot 

in command of an airplane engaged in 
a supplemental operation may author-
ize smoking on the flight deck (if it is 
physically separated from any pas-
senger compartment), but not in any of 
the following situations: 

(i) During airplane movement on the 

surface or during takeoff or landing; 

(ii) During scheduled passenger-car-

rying public charter operations con-
ducted under part 380 of this title; or 

(iii) During any operation where 

smoking is prohibited by part 252 of 
this title or by international agree-
ment. 

(2) 

Certain intrastate domestic oper-

ations. 

Except during airplane move-

ment on the surface or during takeoff 
or landing, a pilot in command of an 
airplane engaged in a domestic oper-
ation may authorize smoking on the 
flight deck (if it is physically separated 
from the passenger compartment) if— 

(i) Smoking on the flight deck is not 

otherwise prohibited by part 252 of this 
title; 

(ii) The flight is conducted entirely 

within the same State of the United 
States (a flight from one place in Ha-
waii to another place in Hawaii 
through the airspace over a place out-
side of Hawaii is not entirely within 
the same State); and 

(iii) The airplane is either not tur-

bojet-powered or the airplane is not ca-
pable of carrying at least 30 passengers. 

(h) No person may smoke in any air-

plane lavatory. 

(i) No person may tamper with, dis-

able, or destroy any smoke detector in-
stalled in any airplane lavatory. 

(j) On flight segments other than 

those described in paragraph (c) of this 
section, the ‘‘No Smoking’’ sign must 
be turned on during any movement on 
the surface, for each takeoff, for each 
landing, and at any other time consid-
ered necessary by the pilot in com-
mand. 

(k) Each passenger shall comply with 

instructions given him or her by a 
crewmember regarding compliance 
with paragraphs (f), (g), (h), and (l) of 
this section. 

(l) A certificate holder may operate a 

nontransport category airplane type 
certificated after December 31, 1964, 
that is manufactured before December 
20, 1997, if it is equipped with at least 
one placard that is legible to each per-
son seated in the cabin that states 
‘‘Fasten Seat Belt,’’ and if, during any 
movement on the surface, for each 
takeoff, for each landing, and at any 
other time considered necessary by the 
pilot in command, a crewmember oral-
ly instructs the passengers to fasten 
their seat belts. 

[Doc. No. 25590, 53 FR 12361, Apr. 13, 1988, as 
amended by Amdt. 121–196, 53 FR 44182, Nov. 
2, 1988; Amdt. 121–213, 55 FR 8367, Mar. 7, 1990; 
Amdt. 121–230, 57 FR 42673, Sept. 15, 1992; 
Amdt. 121–251, 60 FR 65931, Dec. 20, 1995; 
Amdt. 121–256, 61 FR 30434, June 14, 1996; 
Amdt. 121–277, 65 FR 36779, June 9, 2000] 

§ 121.318 Public address system. 

No person may operate an airplane 

with a seating capacity of more than 19 
passengers unless it is equipped with a 
public address system which— 

(a) Is capable of operation inde-

pendent of the crewmember interphone 
system required by § 121.319, except for 

background image

131 

Federal Aviation Administration, DOT 

§ 121.321 

handsets, headsets, microphones, selec-
tor switches, and signaling devices; 

(b) Is approved in accordance with 

§ 21.305 of this chapter; 

(c) Is accessible for immediate use 

from each of two flight crewmember 
stations in the pilot compartment; 

(d) For each required floor-level pas-

senger emergency exit which has an ad-
jacent flight attendant seat, has a 
microphone which is readily accessible 
to the seated flight attendant, except 
that one microphone may serve more 
than one exit, provided the proximity 
of the exits allows unassisted verbal 
communication between seated flight 
attendants; 

(e) Is capable of operation within 10 

seconds by a flight attendant at each of 
those stations in the passenger com-
partment from which its use is acces-
sible; 

(f) Is audible at all passenger seats, 

lavatories, and flight attendant seats 
and work stations; and 

(g) For transport category airplanes 

manufactured on or after November 27, 
1990, meets the requirements of § 25.1423 
of this chapter. 

[Doc. No. 24995, 54 FR 43926, Oct. 27, 1989] 

§ 121.319 Crewmember interphone sys-

tem. 

(a) No person may operate an air-

plane with a seating capacity of more 
than 19 passengers unless the airplane 
is equipped with a crewmember inter-
phone system that: 

(1) [Reserved] 
(2) Is capable of operation inde-

pendent of the public address system 
required by § 121.318(a) except for 
handsets, headsets, microphones, selec-
tor switches, and signaling devices; and 

(3) Meets the requirements of para-

graph (b) of this section. 

(b) The crewmember interphone sys-

tem required by paragraph (a) of this 
section must be approved in accordance 
with § 21.305 of this chapter and meet 
the following requirements: 

(1) It must provide a means of two- 

way communication between the pilot 
compartment and— 

(i) Each passenger compartment; and 
(ii) Each galley located on other than 

the main passenger deck level. 

(2) It must be accessible for imme-

diate use from each of two flight crew-

member stations in the pilot compart-
ment; 

(3) It must be accessible for use from 

at least one normal flight attendant 
station in each passenger compart-
ment; 

(4) It must be capable of operation 

within 10 seconds by a flight attendant 
at those stations in each passenger 
compartment from which its use is ac-
cessible; and 

(5) For large turbojet-powered air-

planes: 

(i) It must be accessible for use at 

enough flight attendant stations so 
that all floor-level emergency exits (or 
entryways to those exits in the case of 
exits located within galleys) in each 
passenger compartment are observable 
from one or more of those stations so 
equipped; 

(ii) It must have an alerting system 

incorporating aural or visual signals 
for use by flight crewmembers to alert 
flight attendants and for use by flight 
attendants to alert flight crew-
members; 

(iii) The alerting system required by 

paragraph (b)(5)(ii) of this section must 
have a means for the recipient of a call 
to determine whether it is a normal 
call or an emergency call; and 

(iv) When the airplane is on the 

ground, it must provide a means of 
two-way communication between 
ground personnel and either of at least 
two flight crewmembers in the pilot 
compartment. The interphone system 
station for use by ground personnel 
must be so located that personnel 
using the system may avoid visible de-
tection from within the airplane. 

[Doc. No. 10865, 38 FR 21494, Aug. 9, 1973, as 
amended by Amdt. 121–121, 40 FR 42186, Sept. 
11, 1975; Amdt. 121–149, 43 FR 50602, Oct. 30, 
1978; Amdt. 121–178, 47 FR 13316, Mar. 29, 1982; 
Amdt. 121–253, 61 FR 2611, Jan. 26, 1996] 

§ 121.321 Operations in icing. 

After October 21, 2013, no person may 

operate an airplane with a certificated 
maximum takeoff weight less than 
60,000 pounds in conditions conducive 
to airframe icing unless it complies 
with this section. As used in this sec-
tion, the phrase ‘‘conditions conducive 
to airframe icing’’ means visible mois-
ture at or below a static air tempera-
ture of 5 

°

C or a total air temperature 

background image

132 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.323 

of 10 

°

C, unless the approved Airplane 

Flight Manual provides another defini-
tion. 

(a) When operating in conditions con-

ducive to airframe icing, compliance 
must be shown with paragraph (a)(1), 
or (2), or (3) of this section. 

(1) The airplane must be equipped 

with a certificated primary airframe 
ice detection system. 

(i) The airframe ice protection sys-

tem must be activated automatically, 
or manually by the flightcrew, when 
the primary ice detection system indi-
cates activation is necessary. 

(ii) When the airframe ice protection 

system is activated, any other proce-
dures in the Airplane Flight Manual 
for operating in icing conditions must 
be initiated. 

(2) Visual cues of the first sign of ice 

formation anywhere on the airplane 
and a certificated advisory airframe ice 
detection system must be provided. 

(i) The airframe ice protection sys-

tem must be activated when any of the 
visual cues are observed or when the 
advisory airframe ice detection system 
indicates activation is necessary, 
whichever occurs first. 

(ii) When the airframe ice protection 

system is activated, any other proce-
dures in the Airplane Flight Manual 
for operating in icing conditions must 
be initiated. 

(3) If the airplane is not equipped to 

comply with the provisions of para-
graph (a)(1) or (2) of this section, then 
the following apply: 

(i) When operating in conditions con-

ducive to airframe icing, the airframe 
ice protection system must be acti-
vated prior to, and operated during, the 
following phases of flight: 

(A) Takeoff climb after second seg-

ment, 

(B) En route climb, 
(C) Go-around climb, 
(D) Holding, 
(E) Maneuvering for approach and 

landing, and 

(F) Any other operation at approach 

or holding airspeeds. 

(ii) During any other phase of flight, 

the airframe ice protection system 
must be activated and operated at the 
first sign of ice formation anywhere on 
the airplane, unless the Airplane 
Flight Manual specifies that the air-

frame ice protection system should not 
be used or provides other operational 
instructions. 

(iii) Any additional procedures for 

operation in conditions conducive to 
icing specified in the Airplane Flight 
Manual or in the manual required by 
§ 121.133 must be initiated. 

(b) If the procedures specified in 

paragraph (a)(3)(i) of this section are 
specifically prohibited in the Airplane 
Flight Manual, compliance must be 
shown with the requirements of para-
graph (a)(1) or (2) of this section. 

(c) Procedures necessary for safe op-

eration of the airframe ice protection 
system must be established and docu-
mented in: 

(1) The Airplane Flight Manual for 

airplanes that comply with paragraph 
(a)(1) or (2) of this section, or 

(2) The Airplane Flight Manual or in 

the manual required by § 121.133 for air-
planes that comply with paragraph 
(a)(3) of this section. 

(d) Procedures for operation of the 

airframe ice protection system must 
include initial activation, operation 
after initial activation, and deactiva-
tion. Procedures for operation after 
initial activation of the ice protection 
system must address— 

(1) Continuous operation, 
(2) Automatic cycling, 
(3) Manual cycling if the airplane is 

equipped with an ice detection system 
that alerts the flightcrew each time 
the ice protection system must be cy-
cled, or 

(4) Manual cycling based on a time 

interval if the airplane type is not 
equipped with features necessary to 
implement (d)(1)–(3) of this section. 

(e) System installations used to com-

ply with paragraph (a)(1) or (a)(2) of 
this section must be approved through 
an amended or supplemental type cer-
tificate in accordance with part 21 of 
this chapter. 

[Doc. No. FAA–2009–0675, 78 FR 15876, Mar. 13, 
2013] 

§ 121.323 Instruments and equipment 

for operations at night. 

No person may operate an airplane at 

night under this part unless it is 
equipped with the following instru-
ments and equipment in addition to 

background image

133 

Federal Aviation Administration, DOT 

§ 121.327 

those required by §§ 121.305 through 
121.321 and 121.803: 

(a) Position lights. 
(b) An anti-collision light. 
(c) Two landing lights, except that 

only one landing light is required for 
nontransport category airplanes type 
certificated after December 31, 1964. 

(d) Instrument lights providing 

enough light to make each required in-
strument, switch, or similar instru-
ment, easily readable and installed so 
that the direct rays are shielded from 
the flight crewmembers’ eyes and that 
no objectionable reflections are visible 
to them. There must be a means of con-
trolling the intensity of illumination 
unless it is shown that nondimming in-
strument lights are satisfactory. 

(e) An airspeed-indicating system 

with heated pitot tube or equivalent 
means for preventing malfunctioning 
due to icing. 

(f) A sensitive altimeter. 

[Doc. No. 6258, 29 FR 19205, Dec. 31, 1964, as 
amended by Amdt. 121–251, 60 FR 65932, Dec. 
20, 1995; Amdt. 121–281, 66 FR 19043, Apr. 12, 
2001] 

§ 121.325 Instruments and equipment 

for operations under IFR or over- 

the-top. 

No person may operate an airplane 

under IFR or over-the-top conditions 
under this part unless it is equipped 
with the following instruments and 
equipment, in addition to those re-
quired by §§ 121.305 through 121.321 and 
121.803: 

(a) An airspeed indicating system 

with heated pitot tube or equivalent 
means for preventing malfunctioning 
due to icing. 

(b) A sensitive altimeter. 
(c) Instrument lights providing 

enough light to make each required in-
strument, switch, or similar instru-
ment, easily readable and so installed 
that the direct rays are shielded from 
the flight crewmembers’ eyes and that 
no objectionable reflections are visible 
to them, and a means of controlling 
the intensity of illumination unless it 
is shown that nondimming instrument 
lights are satisfactory. 

[Doc. No. 6258, 29 FR 19205, Dec. 31, 1964, as 
amended at Amdt. 121–281, 66 FR 19043, Apr. 
12, 2001] 

§ 121.327 Supplemental oxygen: Recip-

rocating engine powered airplanes. 

(a) 

General. 

Except where supple-

mental oxygen is provided in accord-
ance with § 121.331, no person may oper-
ate an airplane unless supplemental ox-
ygen is furnished and used as set forth 
in paragraphs (b) and (c) of this sec-
tion. The amount of supplemental oxy-
gen required for a particular operation 
is determined on the basis of flight al-
titudes and flight duration, consistent 
with the operation procedures estab-
lished for each operation and route. 

(b) 

Crewmembers. 

(1) At cabin pressure 

altitudes above 10,000 feet up to and in-
cluding 12,000 feet, oxygen must be pro-
vided for, and used by, each member of 
the flight crew on flight deck duty, and 
must be provided for other crew-
members, for that part of the flight at 
those altitudes that is of more than 30 
minutes duration. 

(2) At cabin pressure altitudes above 

12,000 feet, oxygen must be provided 
for, and used by, each member of the 
flight crew on flight deck duty, and 
must be provided for other crew-
members, during the entire flight time 
at those altitudes. 

(3) When a flight crewmember is re-

quired to use oxygen, he must use it 
continuously, except when necessary to 
remove the oxygen mask or other dis-
penser in connection with his regular 
duties. Standby crewmembers who are 
on call or are definitely going to have 
flight deck duty before completing the 
flight must be provided with an 
amount of supplemental oxygen equal 
to that provided for crewmembers on 
duty other than on flight deck duty. If 
a standby crewmember is not on call 
and will not be on flight deck duty dur-
ing the remainder of the flight, he is 
considered to be a passenger for the 
purposes of supplemental oxygen re-
quirements. 

(c) 

Passengers. 

Each certificate holder 

shall provide a supply of oxygen, ap-
proved for passenger safety, in accord-
ance with the following: 

(1) For flights of more than 30 min-

utes duration at cabin pressure alti-
tudes above 8,000 feet up to and includ-
ing 14,000 feet, enough oxygen for 30 
minutes for 10 percent of the pas-
sengers. 

background image

134 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.329 

(2) For flights at cabin pressure alti-

tudes above 14,000 feet up to and in-
cluding 15,000 feet, enough oxygen for 
that part of the flight at those alti-
tudes for 30 percent of the passengers. 

(3) For flights at cabin pressure alti-

tudes above 15,000 feet, enough oxygen 
for each passenger carried during the 
entire flight at those altitudes. 

(d) For the purposes of this subpart 

cabin pressure altitude 

means the pres-

sure altitude corresponding with the 
pressure in the cabin of the airplane, 
and 

flight altitude 

means the altitude 

above sea level at which the airplane is 
operated. For airplanes without pres-
surized cabins, ‘‘cabin pressure alti-
tude’’ and ‘‘flight altitude’’ mean the 
same thing. 

§ 121.329 Supplemental oxygen for sus-

tenance: Turbine engine powered 

airplanes. 

(a) 

General. 

When operating a turbine 

engine powered airplane, each certifi-
cate holder shall equip the airplane 
with sustaining oxygen and dispensing 
equipment for use as set forth in this 
section: 

(1) The amount of oxygen provided 

must be at least the quantity nec-
essary to comply with paragraphs (b) 
and (c) of this section. 

(2) The amount of sustaining and 

first-aid oxygen required for a par-
ticular operation to comply with the 
rules in this part is determined on the 
basis of cabin pressure altitudes and 
flight duration, consistent with the op-
erating procedures established for each 
operation and route. 

(3) The requirements for airplanes 

with pressurized cabins are determined 
on the basis of cabin pressure altitude 
and the assumption that a cabin pres-
surization failure will occur at the alti-
tude or point of flight that is most 
critical from the standpoint of oxygen 
need, and that after the failure the air-
plane will descend in accordance with 
the emergency procedures specified in 
the Airplane Flight Manual, without 
exceeding its operating limitations, to 
a flight altitude that will allow suc-
cessful termination of the flight. 

(4) Following the failure, the cabin 

pressure altitude is considered to be 
the same as the flight altitude unless it 
is shown that no probable failure of the 

cabin or pressurization equipment will 
result in a cabin pressure altitude 
equal to the flight altitude. Under 
those circumstances, the maximum 
cabin pressure altitude attained may 
be used as a basis for certification or 
determination of oxygen supply, or 
both. 

(b) 

Crewmembers. 

Each certificate 

holder shall provide a supply of oxygen 
for crewmembers in accordance with 
the following: 

(1) At cabin pressure altitudes above 

10,000 feet, up to and including 12,000 
feet, oxygen must be provided for and 
used by each member of the flight crew 
on flight deck duty and must be pro-
vided for other crewmembers for that 
part of the flight at those altitudes 
that is of more than 30 minutes dura-
tion. 

(2) At cabin pressure altitudes above 

12,000 feet, oxygen must be provided 
for, and used by, each member of the 
flight crew on flight deck duty, and 
must be provided for other crew-
members during the entire flight at 
those altitudes. 

(3) When a flight crewmember is re-

quired to use oxygen, he must use it 
continuously except when necessary to 
remove the oxygen mask or other dis-
penser in connection with his regular 
duties. Standby crewmembers who are 
on call or are definitely going to have 
flight deck duty before completing the 
flight must be provided with an 
amount of supplemental oxygen equal 
to that provided for crewmembers on 
duty other than on flight duty. If a 
standby crewmember is not on call and 
will not be on flight deck duty during 
the remainder of the flight, he is con-
sidered to be a passenger for the pur-
poses of supplemental oxygen require-
ments. 

(c) 

Passengers. 

Each certificate holder 

shall provide a supply of oxygen for 
passengers in accordance with the fol-
lowing: 

(1) For flights at cabin pressure alti-

tudes above 10,000 feet, up to and in-
cluding 14,000 feet, enough oxygen for 
that part of the flight at those alti-
tudes that is of more than 30 minutes 
duration, for 10 percent of the pas-
sengers. 

background image

135 

Federal Aviation Administration, DOT 

§ 121.333 

(2) For flights at cabin pressure alti-

tudes above 14,000 feet, up to and in-
cluding 15,000 feet, enough oxygen for 
that part of the flight at those alti-
tudes for 30 percent of the passengers. 

(3) For flights at cabin pressure alti-

tudes above 15,000 feet, enough oxygen 
for each passenger carried during the 
entire flight at those altitudes. 

§ 121.331 Supplemental oxygen re-

quirements for pressurized cabin 
airplanes: Reciprocating engine 
powered airplanes. 

(a) When operating a reciprocating 

engine powered airplane pressurized 
cabin, each certificate holder shall 
equip the airplane to comply with 
paragraphs (b) through (d) of this sec-
tion in the event of cabin pressuriza-
tion failure. 

(b) 

For crewmembers. 

When operating 

at flight altitudes above 10,000 feet, the 
certificate holder shall provide enough 
oxygen for each crewmember for the 
entire flight at those altitudes and not 
less than a two-hour supply for each 
flight crewmember on flight deck duty. 
The required two hours supply is that 
quantity of oxygen necessary for a con-
stant rate of descent from the air-
plane’s maximum certificated oper-
ating altitude to 10,000 feet in ten min-
utes and followed by 110 minutes at 
10,000 feet. The oxygen required by 
§ 121.337 may be considered in deter-
mining the supplemental breathing 
supply required for flight crewmembers 
on flight deck duty in the event of 
cabin pressurization failure. 

(c) 

For passengers. 

When operating at 

flight altitudes above 8,000 feet, the 
certificate holder shall provide oxygen 
as follows: 

(1) When an airplane is not flown at 

a flight altitude above flight level 250, 
enough oxygen for 30 minutes for 10 
percent of the passengers, if at any 
point along the route to be flown the 
airplane can safely descend to a flight 
altitude of 14,000 feet or less within 
four minutes. 

(2) If the airplane cannot descend to 

a flight altitude of 14,000 feet or less 
within four minutes, the following sup-
ply of oxygen must be provided: 

(i) For that part of the flight that is 

more than four minutes duration at 

flight altitudes above 15,000 feet, the 
supply required by § 121.327(c)(3). 

(ii) For that part of the flight at 

flight altitudes above 14,000 feet, up to 
and including 15,000 feet, the supply re-
quired by § 121.327(c)(2). 

(iii) For flight at flight altitudes 

above 8,000 feet up to and including 
14,000 feet, enough oxygen for 30 min-
utes for 10 percent of the passengers. 

(3) When an airplane is flown at a 

flight altitude above flight level 250, 
enough oxygen for 30 minutes for 10 
percent of the passengers for the entire 
flight (including emergency descent) 
above 8,000 feet, up to and including 
14,000 feet, and to comply with 
§ 121.327(c) (2) and (3) for flight above 
14,000 feet. 

(d) For the purposes of this section it 

is assumed that the cabin pressuriza-
tion failure occurs at a time during 
flight that is critical from the stand-
point of oxygen need and that after the 
failure the airplane will descend, with-
out exceeding its normal operating 
limitations, to flight altitudes allow-
ing safe flight with respect to terrain 
clearance. 

[Doc. No. 6258, 29 FR 19205, Dec. 31, 1964, as 
amended by Amdt. 121–132, 41 FR 55475, Dec. 
20, 1976] 

§ 121.333 Supplemental oxygen for 

emergency descent and for first aid; 

turbine engine powered airplanes 

with pressurized cabins. 

(a) 

General. 

When operating a turbine 

engine powered airplane with a pres-
surized cabin, the certificate holder 
shall furnish oxygen and dispensing 
equipment to comply with paragraphs 
(b) through (e) of this section in the 
event of cabin pressurization failure. 

(b) 

Crewmembers. 

When operating at 

flight altitudes above 10,000 feet, the 
certificate holder shall supply enough 
oxygen to comply with § 121.329, but not 
less than a two-hour supply for each 
flight crewmember on flight deck duty. 
The required two hours supply is that 
quantity of oxygen necessary for a con-
stant rate of descent from the air-
plane’s maximum certificated oper-
ating altitude to 10,000 feet in ten min-
utes and followed by 110 minutes at 
10,000 feet. The oxygen required in the 
event of cabin pressurization failure by 

background image

136 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.333 

§ 121.337 may be included in deter-
mining the supply required for flight 
crewmembers on flight deck duty. 

(c) 

Use of oxygen masks by flight crew-

members. 

(1) When operating at flight 

altitudes above flight level 250, each 
flight crewmember on flight deck duty 
must be provided with an oxygen mask 
so designed that it can be rapidly 
placed on his face from its ready posi-
tion, properly secured, sealed, and sup-
plying oxygen upon demand; and so de-
signed that after being placed on the 
face it does not prevent immediate 
communication between the flight 
crewmember and other crewmembers 
over the airplane intercommunication 
system. When it is not being used at 
flight altitudes above flight level 250, 
the oxygen mask must be kept in con-
dition for ready use and located so as 
to be within the immediate reach of 
the flight crewmember while at his 
duty station. 

(2) When operating at flight altitudes 

above flight level 250, one pilot at the 
controls of the airplane shall at all 
times wear and use an oxygen mask se-
cured, sealed, and supplying oxygen, in 
accordance with the following: 

(i) The one pilot need not wear and 

use an oxygen mask at or below the 
following flight levels if each flight 
crewmember on flight deck duty has a 
quick-donning type of oxygen mask 
that the certificate holder has shown 
can be placed on the face from its 
ready position, properly secured, 
sealed, and supplying oxygen upon de-
mand, with one hand and within five 
seconds: 

(A) For airplanes having a passenger 

seat configuration of more than 30 
seats, excluding any required crew-
member seat, or a payload capacity of 
more than 7,500 pounds, at or below 
flight level 410. 

(B) For airplanes having a passenger 

seat configuration of less than 31 seats, 
excluding any required crewmember 
seat, and a payload capacity of 7,500 
pounds or less, at or below flight level 
350. 

(ii) Whenever a quick-donning type of 

oxygen mask is to be used under this 
section, the certificate holder shall 
also show that the mask can be put on 
without disturbing eye glasses and 
without delaying the flight crew-

member from proceeding with his as-
signed emergency duties. The oxygen 
mask after being put on must not pre-
vent immediate communication be-
tween the flight crewmember and other 
crewmembers over the airplane inter-
communication system. 

(3) Notwithstanding paragraph (c)(2) 

of this section, if for any reason at any 
time it is necessary for one pilot to 
leave his station at the controls of the 
airplane when operating at flight alti-
tudes above flight level 410, the re-
maining pilot at the controls shall put 
on and use his oxygen mask until the 
other pilot has returned to his duty 
station. 

(4) Before the takeoff of a flight, each 

flight crewmember shall personally 
preflight his oxygen equipment to in-
sure that the oxygen mask is func-
tioning, fitted properly, and connected 
to appropriate supply terminals, and 
that the oxygen supply and pressure 
are adequate for use. 

(d) 

Use of portable oxygen equipment by 

cabin attendants. 

After November 28, 

2005 each mask used for portable oxy-
gen equipment must be connected to 
its oxygen supply. Above flight level 
250, one of the following is required: 

(1) Each attendant shall carry port-

able oxygen equipment with a 15 
minute supply of oxygen; or 

(2) There must be sufficient portable 

oxygen equipment (including masks 
and spare outlets) distributed through-
out the cabin so that such equipment is 
immediately available to each attend-
ant, regardless of their location in the 
cabin; or 

(3) There are sufficient spare outlets 

and masks distributed throughout the 
cabin to ensure immediate availability 
of oxygen to each cabin attendant, re-
gardless of their location in the cabin. 

(e) 

Passenger cabin occupants. 

When 

the airplane is operating at flight alti-
tudes above 10,000 feet, the following 
supply of oxygen must be provided for 
the use of passenger cabin occupants: 

(1) When an airplane certificated to 

operate at flight altitudes up to and in-
cluding flight level 250, can at any 
point along the route to be flown, de-
scend safely to a flight altitude of 
14,000 feet or less within four minutes, 
oxygen must be available at the rate 
prescribed by this part for a 30-minute 

background image

137 

Federal Aviation Administration, DOT 

§ 121.337 

period for at least 10 percent of the pas-
senger cabin occupants. 

(2) When an airplane is operated at 

flight altitudes up to and including 
flight level 250 and cannot descend 
safely to a flight altitude of 14,000 feet 
within four minutes, or when an air-
plane is operated at flight altitudes 
above flight level 250, oxygen must be 
available at the rate prescribed by this 
part for not less than 10 percent of the 
passenger cabin occupants for the en-
tire flight after cabin depressurization, 
at cabin pressure altitudes above 10,000 
feet up to and including 14,000 feet and, 
as applicable, to allow compliance with 
§ 121.329(c) (2) and (3), except that there 
must be not less than a 10-minute sup-
ply for the passenger cabin occupants. 

(3) For first-aid treatment of occu-

pants who for physiological reasons 
might require undiluted oxygen fol-
lowing descent from cabin pressure al-
titudes above flight level 250, a supply 
of oxygen in accordance with the re-
quirements of § 25.1443(d) must be pro-
vided for two percent of the occupants 
for the entire flight after cabin depres-
surization at cabin pressure altitudes 
above 8,000 feet, but in no case to less 
than one person. An appropriate num-
ber of acceptable dispensing units, but 
in no case less than two, must be pro-
vided, with a means for the cabin at-
tendants to use this supply. 

(f) 

Passenger briefing. 

Before flight is 

conducted above flight level 250, a 
crewmember shall instruct the pas-
sengers on the necessity of using oxy-
gen in the event of cabin depressuriza-
tion and shall point out to them the lo-
cation and demonstrate the use of the 
oxygen-dispensing equipment. 

[Doc. No. 6258, 29 FR 19205, Dec. 31, 1964, as 
amended by Amdt. 121–11, 30 FR 12466, Sept. 
30, 1965; Amdt. 121–132, 41 FR 55475, Dec. 20, 
1976; Amdt. 121–262, 62 FR 13256, Mar. 19, 1997; 
62 FR 15570, Apr. 1, 1997; Amdt. 121–306, 69 FR 
62789, Oct. 27, 2004; Amdt. 121–383, 85 FR 16900, 
Mar. 25, 2020] 

§ 121.335 Equipment standards. 

(a) 

Reciprocating engine powered air-

planes. 

The oxygen apparatus, the min-

imum rates of oxygen flow, and the 
supply of oxygen necessary to comply 
with § 121.327 must meet the standards 
established in section 4b.651 of the Civil 
Air Regulations as in effect on July 20, 

1950, except that if the certificate hold-
er shows full compliance with those 
standards to be impracticable, the Ad-
ministrator may authorize any change 
in those standards that he finds will 
provide an equivalent level of safety. 

(b) 

Turbine engine powered airplanes. 

The oxygen apparatus, the minimum 
rate of oxygen flow, and the supply of 
oxygen necessary to comply with 
§§ 121.329 and 121.333 must meet the 
standards established in section 4b.651 
of the Civil Air Regulations as in effect 
on September 1, 1958, except that if the 
certificate holder shows full compli-
ance with those standards to be im-
practicable, the Administrator may au-
thorize any changes in those standards 
that he finds will provide an equivalent 
level of safety. 

§ 121.337 Protective breathing equip-

ment. 

(a) The certificate holder shall fur-

nish approved protective breathing 
equipment (PBE) meeting the equip-
ment, breathing gas, and communica-
tion requirements contained in para-
graph (b) of this section. 

(b) 

Pressurized and nonpressurized 

cabin airplanes. 

Except as provided in 

paragraph (f) of this section, no person 
may operate an airplane unless protec-
tive breathing equipment meeting the 
requirements of this section is provided 
as follows: 

(1) 

General. 

The equipment must pro-

tect the flightcrew from the effects of 
smoke, carbon dioxide or other harmful 
gases or an oxygen deficient environ-
ment caused by other than an airplane 
depressurization while on flight deck 
duty and must protect crewmembers 
from the above effects while combat-
ting fires on board the airplane. 

(2) The equipment must be inspected 

regularly in accordance with inspec-
tion guidelines and the inspection peri-
ods established by the equipment man-
ufacturer to ensure its condition for 
continued serviceability and imme-
diate readiness to perform its intended 
emergency purposes. The inspection pe-
riods may be changed upon a showing 
by the certificate holder that the 
changes would provide an equivalent 
level of safety. 

(3) That part of the equipment pro-

tecting the eyes must not impair the 

background image

138 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.337 

wearer’s vision to the extent that a 
crewmember’s duties cannot be accom-
plished and must allow corrective 
glasses to be worn without impairment 
of vision or loss of the protection re-
quired by paragraph (b)(1) of this sec-
tion. 

(4) The equipment, while in use, must 

allow the flightcrew to communicate 
using the airplane radio equipment and 
to communicate by interphone with 
each other while at their assigned duty 
stations. The equipment, while in use, 
must also allow crewmember inter-
phone communications between each of 
two flight crewmember stations in the 
pilot compartment and at least one 
normal flight attendant station in each 
passenger compartment. 

(5) The equipment, while in use, must 

allow any crewmember to use the air-
plane interphone system at any of the 
flight attendant stations referred to in 
paragraph (b)(4) of this section. 

(6) The equipment may also be used 

to meet the supplemental oxygen re-
quirements of this part provided it 
meets the oxygen equipment standards 
of § 121.335 of this part. 

(7) Protective breathing gas duration 

and supply system equipment require-
ments are as follows: 

(i) The equipment must supply 

breathing gas for 15 minutes at a pres-
sure altitude of 8,000 feet for the fol-
lowing: 

(A) Flight crewmembers while per-

forming flight deck duties; and 

(B) Crewmembers while combatting 

an in-flight fire. 

(ii) The breathing gas system must 

be free from hazards in itself, in its 
method of operation, and in its effect 
upon other components. 

(iii) For breathing gas systems other 

than chemical oxygen generators, 
there must be a means to allow the 
crew to readily determine, during the 
equipment preflight described in para-
graph (c) of this section, that the gas 
supply is fully charged. 

(iv) For each chemical oxygen gener-

ator, the supply system equipment 
must meet the requirements of § 25.1450 
(b) and (c) of this chapter. 

(8) 

Smoke and fume protection. 

Protec-

tive breathing equipment with a fixed 
or portable breathing gas supply meet-
ing the requirements of this section 

must be conveniently located on the 
flight deck and be easily accessible for 
immediate use by each required flight 
crewmember at his or her assigned 
duty station. 

(9) 

Fire combatting. 

Except for non-

transport category airplanes type cer-
tificated after December 31, 1964, pro-
tective breathing equipment with a 
portable breathing gas supply meeting 
the requirements of this section must 
be easily accessible and conveniently 
located for immediate use by crew-
members in combatting fires as fol-
lows: 

(i) One PBE is required for each hand 

fire extinguisher located for use in a 
galley other than a galley located in a 
passenger, cargo, or crew compart-
ment. 

(ii) One on the flight deck, except 

that the Administrator may authorize 
another location for this PBE if special 
circumstances exist that make compli-
ance impractical and the proposed de-
viation would provide an equivalent 
level of safety. 

(iii) In each passenger compartment, 

one for each hand fire extinguisher re-
quired by § 121.309 of this part, to be lo-
cated within 3 feet of each required 
hand fire extinguisher, except that the 
Administrator may authorize a devi-
ation allowing locations of PBE more 
than 3 feet from required hand fire ex-
tinguisher locations if special cir-
cumstances exist that make compli-
ance impractical and if the proposed 
deviation provides an equivalent level 
of safety. 

(c) 

Equipment preflight. 

(1) Before 

each flight, each item of PBE at flight 
crewmember duty stations must be 
checked by the flight crewmember who 
will use the equipment to ensure that 
the equipment— 

(i) For other than chemical oxygen 

generator systems, is functioning, is 
serviceable, fits properly (unless a uni-
versal-fit type), and is connected to 
supply terminals and that the breath-
ing gas supply and pressure are ade-
quate for use; and 

(ii) For chemical oxygen generator 

systems, is serviceable and fits prop-
erly (unless a universal-fit type). 

(2) Each item of PBE located at other 

than a flight crewmember duty station 

background image

139 

Federal Aviation Administration, DOT 

§ 121.340 

must be checked by a designated crew-
member to ensure that each is properly 
stowed and serviceable, and, for other 
than chemical oxygen generator sys-
tems, the breathing gas supply is fully 
charged. Each certificate holder, in its 
operations manual, must designate at 
least one crewmember to perform those 
checks before he or she takes off in 
that airplane for his or her first flight 
of the day. 

[Doc. No. 24792, 52 FR 20957, June 3, 1987, as 
amended by Amdt. 121–204, 54 FR 22271, May 
22, 1989; Amdt. 121–212, 55 FR 5551, Feb. 15, 
1990; Amdt. 121–218, 55 FR 31565, Aug. 2, 1990; 
Amdt. 121–230, 57 FR 42674, Sept. 15, 1992; 
Amdt. 121–251, 60 FR 65932, Dec. 20, 1995; 
Amdt. 121–261, 61 FR 43921, Aug. 26, 1996] 

§ 121.339 Emergency equipment for ex-

tended over-water operations. 

(a) Except where the Administrator, 

by amending the operations specifica-
tions of the certificate holder, requires 
the carriage of all or any specific items 
of the equipment listed below for any 
overwater operation, or upon applica-
tion of the certificate holder, the Ad-
ministrator allows deviation for a par-
ticular extended overwater operation, 
no person may operate an airplane in 
extended overwater operations without 
having on the airplane the following 
equipment: 

(1) A life preserver equipped with an 

approved survivor locator light, for 
each occupant of the airplane. 

(2) Enough life rafts (each equipped 

with an approved survivor locator 
light) of a rated capacity and buoyancy 
to accommodate the occupants of the 
airplane. Unless excess rafts of enough 
capacity are provided, the buoyancy 
and seating capacity beyond the rated 
capacity of the rafts must accommo-
date all occupants of the airplane in 
the event of a loss of one raft of the 
largest rated capacity. 

(3) At least one pyrotechnic signaling 

device for each life raft. 

(4) An approved survival type emer-

gency locator transmitter. Batteries 
used in this transmitter must be re-
placed (or recharged, if the battery is 
rechargeable) when the transmitter has 
been in use for more than 1 cumulative 
hour, or when 50 percent of their useful 
life (or for rechargeable batteries, 50 
percent of their useful life of charge) 

has expired, as established by the 
transmitter manufacturer under its ap-
proval. The new expiration date for re-
placing (or recharging) the battery 
must be legibly marked on the outside 
of the transmitter. The battery useful 
life (or useful life of charge) require-
ments of this paragraph do not apply 
to batteries (such as water-activated 
batteries) that are essentially unaf-
fected during probable storage inter-
vals. 

(b) The required life rafts, life pre-

servers, and survival type emergency 
locator transmitter must be easily ac-
cessible in the event of a ditching with-
out appreciable time for preparatory 
procedures. This equipment must be in-
stalled in conspicuously marked, ap-
proved locations. 

(c) A survival kit, appropriately 

equipped for the route to be flown, 
must be attached to each required life 
raft. 

[Doc. No. 6258, 29 FR 19205, Dec. 31, 1964, as 
amended by Amdt. 121–53, 34 FR 15244, Sept. 
30, 1969; Amdt. 121–79, 36 FR 18724, Sept. 21, 
1971; Amdt. 121–93, 37 FR 14294, June 19, 1972 
Amdt. 121–106, 38 FR 22378, Aug. 20, 1973; 
Amdt. 121–149, 43 FR 50603, Oct. 30, 1978; 
Amdt. 121–158, 45 FR 38348, June 9, 1980; 
Amdt. 121–239, 59 FR 32057, June 21, 1994] 

§ 121.340 Emergency flotation means. 

(a) Except as provided in paragraph 

(b) of this section, no person may oper-
ate an airplane in any overwater oper-
ation unless it is equipped with life 
preservers in accordance with 
§ 121.339(a)(1) or with an approved flota-
tion means for each occupant. This 
means must be within easy reach of 
each seated occupant and must be read-
ily removable from the airplane. 

(b) Upon application by the air car-

rier or commercial operator, the Ad-
ministrator may approve the operation 
of an airplane over water without the 
life preservers or flotation means re-
quired by paragraph (a) of this section, 
if the air carrier or commercial oper-
ator shows that the water over which 
the airplane is to be operated is not of 
such size and depth that life preservers 
or flotation means would be required 
for the survival of its occupants in the 

background image

140 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.341 

event the flight terminates in that 
water. 

[Doc. No. 6713, 31 FR 1147, Jan. 28, 1966, as 
amended by Amdt. 121–25, 32 FR 3223, Feb. 24, 
1967; Amdt. 121–251, 60 FR 65932, Dec. 20, 1995] 

§ 121.341 Equipment for operations in 

icing conditions. 

(a) Except as permitted in paragraph 

(c)(2) of this section, unless an airplane 
is type certificated under the transport 
category airworthiness requirements 
relating to ice protection, or unless an 
airplane is a non-transport category 
airplane type certificated after Decem-
ber 31, 1964, that has the ice protection 
provisions that meet section 34 of ap-
pendix A of part 135 of this chapter, no 
person may operate an airplane in 
icing conditions unless it is equipped 
with means for the prevention or re-
moval of ice on windshields, wings, em-
pennage, propellers, and other parts of 
the airplane where ice formation will 
adversely affect the safety of the air-
plane. 

(b) No person may operate an air-

plane in icing conditions at night un-
less means are provided for illu-
minating or otherwise determining the 
formation of ice on the parts of the 
wings that are critical from the stand-
point of ice accumulation. Any illu-
minating that is used must be of a type 
that will not cause glare or reflection 
that would handicap crewmembers in 
the performance of their duties. 

(c) 

Non-transport category airplanes 

type certificated after December 31, 1964. 

Except for an airplane that has ice pro-
tection provisions that meet section 34 
of appendix A of part 135 of this chap-
ter, or those for transport category air-
plane type certification, no person may 
operate— 

(1) Under IFR into known or forecast 

light or moderate icing conditions; 

(2) Under VFR into known light or 

moderate icing conditions; unless the 
airplane has functioning deicing anti- 
icing equipment protecting each pro-
peller, windshield, wing, stabilizing or 
control surface, and each airspeed, al-
timeter, rate of climb, or flight atti-
tude instrument system; or 

(3) Into known or forecast severe 

icing conditions. 

(d) If current weather reports and 

briefing information relied upon by the 

pilot in command indicate that the 
forecast icing condition that would 
otherwise prohibit the flight will not 
be encountered during the flight be-
cause of changed weather conditions 
since the forecast, the restrictions in 
paragraph (c) of this section based on 
forecast conditions do not apply. 

[Doc. No. 6258, 29 FR 18205, Dec. 31, 1964, as 
amended by Amdt. 121–251, 60 FR 65929, Dec. 
20, 1995] 

§ 121.342 Pitot heat indication systems. 

No person may operate a transport 

category airplane or, after December 
20, 1999, a nontransport category air-
plane type certificated after December 
31, 1964, that is equipped with a flight 
instrument pitot heating system unless 
the airplane is also equipped with an 
operable pitot heat indication system 
that complies § 25.1326 of this chapter 
in effect on April 12, 1978. 

[Doc. No. 28154, 60 FR 65932, Dec. 20, 1995] 

§ 121.343 Flight data recorders. 

(a) Except as provided in paragraphs 

(b), (c), (d), (e), and (f) of this section, 
no person may operate a large airplane 
that is certificated for operations 
above 25,000 feet altitude or is turbine- 
engine powered unless it is equipped 
with one or more approved flight re-
corders that record data from which 
the following may be determined with-
in the ranges, accuracies, and record-
ing intervals specified in appendix B of 
this part: 

(1) Time; 
(2) Altitude; 
(3) Airspeed; 
(4) Vertical acceleration; 
(5) Heading; and 
(6) Time of each radio transmission 

either to or from air traffic control. 

(b) No person may operate a large 

airplane type certificated up to and in-
cluding September 30, 1969, for oper-
ations above 25,000 feet altitude, or a 
turbine-engine powered airplane cer-
tificated before the same date, unless 
it is equipped before May 26, 1989 with 
one or more approved flight recorders 
that utilize a digital method of record-
ing and storing data and a method of 
readily retrieving that data from the 
storage medium. The following infor-
mation must be able to be determined 

background image

141 

Federal Aviation Administration, DOT 

§ 121.343 

within the ranges, accuracies, and re-
cording intervals specified in appendix 
B of this part: 

(1) Time; 
(2) Altitude; 
(3) Airspeed; 
(4) Vertical acceleration; 
(5) Heading; and 
(6) Time of each radio transmission 

either to or from air traffic control. 

(c) Except as provided in paragraph 

(l) of this section, no person may oper-
ate an airplane specified in paragraph 
(b) of this section unless it is equipped, 
before May 26, 1995, with one or more 
approved flight recorders that utilize a 
digital method of recording and storing 
data and a method of readily retrieving 
that data from the storage medium. 
The following information must be 
able to be determined within the 
ranges, accuracies and recording inter-
vals specified in appendix B of this 
part: 

(1) Time; 
(2) Altitude; 
(3) Airspeed; 
(4) Vertical acceleration; 
(5) Heading; 
(6) Time of each radio transmission 

either to or from air traffic control; 

(7) Pitch attitude; 
(8) Roll attitude; 
(9) Longitudinal acceleration; 
(10) Control column or pitch control 

surface position; and 

(11) Thrust of each engine. 
(d) No person may operate an air-

plane specified in paragraph (b) of this 
section that is manufactured after May 
26, 1989, as well as airplanes specified in 
paragraph (a) of this section that have 
been type certificated after September 
30, 1969, unless it is equipped with one 
or more approved flight recorders that 
utlitize a digital method of recording 
and storing data and a method of read-
ily retrieving that data from the stor-
age medium. The following informa-
tion must be able to be determined 
within the ranges, accuracies, and re-
cording intervals specified in appendix 
B of this part: 

(1) Time; 
(2) Altitude; 
(3) Airspeed; 
(4) Vertical acceleration; 
(5) Heading; 

(6) Time of each radio transmission 

either to or from air traffic control; 

(7) Pitch attitude; 
(8) Roll attitude; 
(9) Longitudinal acceleration; 
(10) Pitch trim position; 
(11) Control column or pitch control 

surface position; 

(12) Control wheel or lateral control 

surface position; 

(13) Rudder pedal or yaw control sur-

face position; 

(14) Thrust of each engine; 
(15) Position of each thrust reverser; 
(16) Trailing edge flap or cockpit flap 

control position; and 

(17) Leading edge flap or cockpit flap 

control position. 

For the purpose of this section, 

manu-

factured 

means the point in time at 

which the airplane inspection accept-
ance records reflect that the airplane is 
complete and meets the FAA-approved 
type design data. 

(e) After October 11, 1991, no person 

may operate a large airplane equipped 
with a digital data bus and ARINC 717 
digital flight data acquisition unit 
(DFDAU) or equivalent unless it is 
equipped with one or more approved 
flight recorders that utilize a digital 
method of recording and storing data 
and a method of readily retrieving that 
data from the storage medium. Any pa-
rameters specified in appendix B of this 
part that are available on the digital 
data bus must be recorded within the 
ranges, accuracies, resolutions, and 
sampling intervals specified. 

(f) After October 11, 1991, no person 

may operate an airplane specified in 
paragraph (b) of this section that is 
manufactured after October 11, 1991, 
nor an airplane specified in paragraph 
(a) of this section that has been type 
certificated after September 30, 1969, 
and manufactured after October 11, 
1991, unless it is equipped with one or 
more flight recorders that utilize a dig-
ital method of recording and storing 
data and a method of readily retrieving 
that data from the storage medium. 
The parameters specified in appendix B 
of this part must be recorded within 
the ranges, accuracies, resolutions, and 
sampling intervals specified. 

(g) Whenever a flight recorder re-

quired by this section is installed, it 
must be operated continuously from 

background image

142 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.344 

the instant the airplane begins the 
takeoff roll until it has completed the 
landing roll at an airport. 

(h) Except as provided in paragraph 

(i) of this section, and except for re-
corded data erased as authorized in 
this paragraph, each certificate holder 
shall keep the recorded data prescribed 
in paragraph (a), (b), (c), or (d) of this 
section, as appropriate, until the air-
plane has been operated for at least 25 
hours of the operating time specified in 
§ 121.359(a). A total of 1 hour of recorded 
data may be erased for the purpose of 
testing the flight recorder or the flight 
recorder system. Any erasure made in 
accordance with this paragraph must 
be of the oldest recorded data accumu-
lated at the time of testing. Except as 
provided in paragraph (i) of this sec-
tion, no record need be kept more than 
60 days. 

(i) In the event of an accident or oc-

currence that requires immediate noti-
fication of the National Transportation 
Safety Board under part 830 of its regu-
lations and that results in termination 
of the flight, the certificate holder 
shall remove the recording media from 
the airplane and keep the recorded 
data required by paragraph (a), (b), (c), 
or (d) of this section, as appropriate, 
for at least 60 days or for a longer pe-
riod upon the request of the Board or 
the Administrator. 

(j) Each flight recorder required by 

this section must be installed in ac-
cordance with the requirements of 
§ 25.1459 of this chapter in effect on Au-
gust 31, 1977. The correlation required 
by § 25.1459(c) of this chapter need be 
established only on one airplane of any 
group of airplanes— 

(1) That are of the same type; 
(2) On which the model flight re-

corder and its installation are the 
same; and 

(3) On which there is no difference in 

the type design with respect to the in-
stallation of those first pilot’s instru-
ments associated with the flight re-
corder. The most recent instrument 
calibration, including the recording 
medium from which this calibration is 
derived, and the recorder correlation 
must be retained by the certificate 
holder. 

(k) Each flight recorder required by 

this section that records the data spec-

ified in paragraph (a), (b), (c), or (d) of 
this section, as appropriate, must have 
an approved device to assist in locating 
that recorder under water. 

(l) No person may operate an airplane 

specified in paragraph (b) of this sec-
tion that meets the Stage 2 noise levels 
of part 36 of this chapter and is subject 
to § 91.801(c) of this chapter unless it is 
equipped with one or more approved 
flight data recorders that utilize a dig-
ital method of recording and storing 
data and a method of readily retrieving 
that data from the storage medium. 
The information specified in para-
graphs (c)(1) through (c)(11) of this sec-
tion must be able to be determined 
within the ranges, accuracies and re-
cording intervals specified in appendix 
B of this part. In addition— 

(1) This flight data recorder must be 

installed at the next heavy mainte-
nance check after May 26, 1994, but no 
later than May 26, 1995. A heavy main-
tenance check is considered to be any 
time an aircraft is scheduled to be out 
of service for 4 or more days. 

(2) By June 23, 1994, each carrier must 

submit to the FAA Flight Standards 
Service, Air Transportation Division 
(AFS–200), documentation listing those 
airplanes covered under this paragraph 
and evidence that it has ordered a suf-
ficient number of flight data recorders 
to meet the May 26, 1995, compliance 
date for all aircraft on that list. 

(3) After May 26, 1994, any aircraft 

that is modified to meet Stage 3 noise 
levels must have the flight data re-
corder described in paragraph (c) of 
this section installed before operating 
under this part. 

(m) After August 20, 2001, this section 

applies only to the airplane models 
listed in § 121.344(l)(2). All other air-
planes must comply with the require-
ments of § 121.344, as applicable. 

[Doc. No. 24418, 52 FR 9636, Mar. 25, 1987, as 
amended by Amdt. 121–197, 53 FR 26147, July 
11, 1988; Amdt. 121–238, 59 FR 26900, May 24, 
1994; Amdt. 121–338, 73 FR 12565, Mar. 7, 2008] 

§ 121.344 Digital flight data recorders 

for transport category airplanes. 

(a) Except as provided in paragraph 

(l) of this section, no person may oper-
ate under this part a turbine-engine- 
powered transport category airplane 
unless it is equipped with one or more 

background image

143 

Federal Aviation Administration, DOT 

§ 121.344 

approved flight recorders that use a 
digital method of recording and storing 
data and a method of readily retrieving 
that data from the storage medium. 
The operational parameters required to 
be recorded by digital flight data re-
corders required by this section are as 
follows: The phrase ‘‘when an informa-
tion source is installed’’ following a pa-
rameter indicates that recording of 
that parameter is not intended to re-
quire a change in installed equipment: 

(1) Time; 
(2) Pressure altitude; 
(3) Indicated airspeed; 
(4) Heading—primary flight crew ref-

erence (if selectable, record discrete, 
true or magnetic); 

(5) Normal acceleration (Vertical); 
(6) Pitch attitude; 
(7) Roll attitude; 
(8) Manual radio transmitter keying, 

or CVR/DFDR synchronization ref-
erence; 

(9) Thrust/power of each engine—pri-

mary flight crew reference; 

(10) Autopilot engagement status; 
(11) Longitudinal acceleration; 
(12) Pitch control input; 
(13) Lateral control input; 
(14) Rudder pedal input; 
(15) Primary pitch control surface po-

sition; 

(16) Primary lateral control surface 

position; 

(17) Primary yaw control surface po-

sition; 

(18) Lateral acceleration; 
(19) Pitch trim surface position or pa-

rameters of paragraph (a)(82) of this 
section if currently recorded; 

(20) Trailing edge flap or cockpit flap 

control selection (except when param-
eters of paragraph (a)(85) of this sec-
tion apply); 

(21) Leading edge flap or cockpit flap 

control selection (except when param-
eters of paragraph (a)(86) of this sec-
tion apply); 

(22) Each Thrust reverser position (or 

equivalent for propeller airplane); 

(23) Ground spoiler position or speed 

brake selection (except when param-
eters of paragraph (a)(87) of this sec-
tion apply); 

(24) Outside or total air temperature; 
(25) Automatic Flight Control Sys-

tem (AFCS) modes and engagement 
status, including autothrottle; 

(26) Radio altitude (when an informa-

tion source is installed); 

(27) Localizer deviation, MLS Azi-

muth; 

(28) Glideslope deviation, MLS Ele-

vation; 

(29) Marker beacon passage; 
(30) Master warning; 
(31) Air/ground sensor (primary air-

plane system reference nose or main 
gear); 

(32) Angle of attack (when informa-

tion source is installed); 

(33) Hydraulic pressure low (each sys-

tem); 

(34) Ground speed (when an informa-

tion source is installed); 

(35) Ground proximity warning sys-

tem; 

(36) Landing gear position or landing 

gear cockpit control selection; 

(37) Drift angle (when an information 

source is installed); 

(38) Wind speed and direction (when 

an information source is installed); 

(39) Latitude and longitude (when an 

information source is installed); 

(40) Stick shaker/pusher (when an in-

formation source is installed); 

(41) Windshear (when an information 

source is installed); 

(42) Throttle/power lever position; 
(43) Additional engine parameters (as 

designated in Appendix M of this part); 

(44) Traffic alert and collision avoid-

ance system; 

(45) DME 1 and 2 distances; 
(46) Nav 1 and 2 selected frequency; 
(47) Selected barometric setting 

(when an information source is in-
stalled); 

(48) Selected altitude (when an infor-

mation source is installed); 

(49) Selected speed (when an informa-

tion source is installed); 

(50) Selected mach (when an informa-

tion source is installed); 

(51) Selected vertical speed (when an 

information source is installed); 

(52) Selected heading (when an infor-

mation source is installed); 

(53) Selected flight path (when an in-

formation source is installed); 

(54) Selected decision height (when 

an information source is installed); 

(55) EFIS display format; 
(56) Multi-function/engine/alerts dis-

play format; 

(57) Thrust command (when an infor-

mation source is installed); 

background image

144 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.344 

(58) Thrust target (when an informa-

tion source is installed); 

(59) Fuel quantity in CG trim tank 

(when an information source is in-
stalled); 

(60) Primary Navigation System Ref-

erence; 

(61) Icing (when an information 

source is installed); 

(62) Engine warning each engine vi-

bration (when an information source is 
installed); 

(63) Engine warning each engine over 

temp. (when an information source is 
installed); 

(64) Engine warning each engine oil 

pressure low (when an information 
source is installed); 

(65) Engine warning each engine over 

speed (when an information source is 
installed); 

(66) Yaw trim surface position; 
(67) Roll trim surface position; 
(68) Brake pressure (selected system); 
(69) Brake pedal application (left and 

right); 

(70) Yaw or sideslip angle (when an 

information source is installed); 

(71) Engine bleed valve position 

(when an information source is in-
stalled); 

(72) De-icing or anti-icing system se-

lection (when an information source is 
installed); 

(73) Computed center of gravity 

(when an information source is in-
stalled); 

(74) AC electrical bus status; 
(75) DC electrical bus status; 
(76) APU bleed valve position (when 

an information source is installed); 

(77) Hydraulic pressure (each sys-

tem); 

(78) Loss of cabin pressure; 
(79) Computer failure; 
(80) Heads-up display (when an infor-

mation source is installed); 

(81) Para-visual display (when an in-

formation source is installed); 

(82) Cockpit trim control input posi-

tion—pitch; 

(83) Cockpit trim control input posi-

tion—roll; 

(84) Cockpit trim control input posi-

tion—yaw; 

(85) Trailing edge flap and cockpit 

flap control position; 

(86) Leading edge flap and cockpit 

flap control position; 

(87) Ground spoiler position and speed 

brake selection; 

(88) All cockpit flight control input 

forces (control wheel, control column, 
rudder pedal); 

(89) Yaw damper status; 
(90) Yaw damper command; and 
(91) Standby rudder valve status. 
(b) For all turbine-engine powered 

transport category airplanes manufac-
tured on or before October 11, 1991, by 
August 20, 2001. 

(1) For airplanes not equipped as of 

July 16, 1996, with a flight data acquisi-
tion unit (FDAU), the parameters list-
ed in paragraphs (a)(1) through (a)(18) 
of this section must be recorded within 
the ranges and accuracies specified in 
Appendix B of this part, and— 

(i) For airplanes with more than two 

engines, the parameter described in 
paragraph (a)(18) is not required unless 
sufficient capacity is available on the 
existing recorder to record that param-
eter; 

(ii) Parameters listed in paragraphs 

(a)(12) through (a)(17) each may be re-
corded from a single source. 

(2) For airplanes that were equipped 

as of July 16, 1996, with a flight data 
acquisition unit (FDAU), the param-
eters listed in paragraphs (a)(1) 
through (a)(22) of this section must be 
recorded within the ranges, accuracies, 
and recording intervals specified in Ap-
pendix M of this part. Parameters list-
ed in paragraphs (a)(12) through (a)(17) 
each may be recorded from a single 
source. 

(3) The approved flight recorder re-

quired by this section must be installed 
at the earliest time practicable, but no 
later than the next heavy maintenance 
check after August 18, 1999 and no later 
than August 20, 2001. A heavy mainte-
nance check is considered to be any 
time an airplane is scheduled to be out 
of service for 4 or more days and is 
scheduled to include access to major 
structural components. 

(c) For all turbine-engine powered 

transport category airplanes manufac-
tured on or before October 11, 1991— 

(1) That were equipped as of July 16, 

1996, with one or more digital data 
bus(es) and an ARINC 717 digital flight 
data acquisition unit (DFDAU) or 
equivalent, the parameters specified in 
paragraphs (a)(1) through (a)(22) of this 

background image

145 

Federal Aviation Administration, DOT 

§ 121.344 

section must be recorded within the 
ranges, accuracies, resolutions, and 
sampling intervals specified in Appen-
dix M of this part by August 20, 2001. 
Parameters listed in paragraphs (a)(12) 
through (a)(14) each may be recorded 
from a single source. 

(2) Commensurate with the capacity 

of the recording system (DFDAU or 
equivalent and the DFDR), all addi-
tional parameters for which informa-
tion sources are installed and which 
are connected to the recording system 
must be recorded within the ranges, ac-
curacies, resolutions, and sampling in-
tervals specified in Appendix M of this 
part by August 20, 2001. 

(3) That were subject to § 121.343(e) of 

this part, all conditions of § 121.343(e) 
must continue to be met until compli-
ance with paragraph (c)(1) of this sec-
tion is accomplished. 

(d) For all turbine-engine-powered 

transport category airplanes that were 
manufactured after October 11, 1991— 

(1) The parameters listed in para-

graph (a)(1) through (a)(34) of this sec-
tion must be recorded within the 
ranges, accuracies, resolutions, and re-
cording intervals specified in Appendix 
M of this part by August 20, 2001. Pa-
rameters listed in paragraphs (a)(12) 
through (a)(14) each may be recorded 
from a single source. 

(2) Commensurate with the capacity 

of the recording system, all additional 
parameters for which information 
sources are installed and which are 
connected to the recording system 
must be recorded within the ranges, ac-
curacies, resolutions, and sampling in-
tervals specified in Appendix M of this 
part by August 20, 2001. 

(e) For all turbine-engine-powered 

transport category airplanes that are 
manufactured after August 18, 2000— 

(1) The parameters listed in para-

graph (a)(1) through (57) of this section 
must be recorded within the ranges, ac-
curacies, resolutions, and recording in-
tervals specified in Appendix M of this 
part. 

(2) Commensurate with the capacity 

of the recording system, all additional 
parameters for which information 
sources are installed and which are 
connected to the recording system, 
must be recorded within the ranges, ac-
curacies, resolutions, and sampling in-

tervals specified in Appendix M of this 
part. 

(3) In addition to the requirements of 

paragraphs (e)(1) and (e)(2) of this sec-
tion, all Boeing 737 model airplanes 
must also comply with the require-
ments of paragraph (n) of this section, 
as applicable. 

(f) For all turbine-engine-powered 

transport category airplanes manufac-
tured after August 19, 2002— 

(1) The parameters listed in para-

graphs (a)(1) through (a)(88) of this sec-
tion must be recorded within the 
ranges, accuracies, resolutions, and re-
cording intervals specified in appendix 
M to this part. 

(2) In addition to the requirements of 

paragraphs (f)(1) of this section, all 
Boeing 737 model airplanes must also 
comply with the requirements of para-
graph (n) of this section. 

(g) Whenever a flight data recorder 

required by this section is installed, it 
must be operated continuously from 
the instant the airplane begins its 
takeoff roll until it has completed its 
landing roll. 

(h) Except as provided in paragraph 

(i) of this section, and except for re-
corded data erased as authorized in 
this paragraph, each certificate holder 
shall keep the recorded data prescribed 
by this section, as appropriate, until 
the airplane has been operated for at 
least 25 hours of the operating time 
specified in § 121.359(a) of this part. A 
total of 1 hour of recorded data may be 
erased for the purpose of testing the 
flight recorder or the flight recorder 
system. Any erasure made in accord-
ance with this paragraph must be of 
the oldest recorded data accumulated 
at the time of testing. Except as pro-
vided in paragraph (i) of this section, 
no record need be kept more than 60 
days. 

(i) In the event of an accident or oc-

currence that requires immediate noti-
fication of the National Transportation 
Safety Board under 49 CFR 830 of its 
regulations and that results in termi-
nation of the flight, the certificate 
holder shall remove the recorder from 
the airplane and keep the recorder data 
prescribed by this section, as appro-
priate, for at least 60 days or for a 
longer period upon the request of the 
Board or the Administrator. 

background image

146 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.344a 

(j) Each flight data recorder system 

required by this section must be in-
stalled in accordance with the require-
ments of § 25.1459(a) (except paragraphs 
(a)(3)(ii) and (a)(7)), (b), (d) and (e) of 
this chapter. A correlation must be es-
tablished between the values recorded 
by the flight data recorder and the cor-
responding values being measured. The 
correlation must contain a sufficient 
number of correlation points to accu-
rately establish the conversion from 
the recorded values to engineering 
units or discrete state over the full op-
erating range of the parameter. Except 
for airplanes having separate altitude 
and airspeed sensors that are an inte-
gral part of the flight data recorder 
system, a single correlation may be es-
tablished for any group of airplanes— 

(1) That are of the same type; 
(2) On which the flight recorder sys-

tem and its installation are the same; 
and 

(3) On which there is no difference in 

the type design with respect to the in-
stallation of those sensors associated 
with the flight data recorder system. 
Documentation sufficient to convert 
recorded data into the engineering 
units and discrete values specified in 
the applicable appendix must be main-
tained by the certificate holder. 

(k) Each flight data recorder required 

by this section must have an approved 
device to assist in locating that re-
corder under water. 

(l) The following airplanes that were 

manufactured before August 18, 1997 
need not comply with this section, but 
must continue to comply with applica-
ble paragraphs of § 121.343 of this chap-
ter, as appropriate: 

(1) Airplanes that meet the State 2 

noise levels of part 36 of this chapter 
and are subject to § 91.801(c) of this 
chapter, until January 1, 2000. On and 
after January 1, 2000, any Stage 2 air-
plane otherwise allowed to be operated 
under Part 91 of this chapter must 
comply with the applicable flight data 
recorder requirements of this section 
for that airplane. 

(2) British Aerospace 1–11, General 

Dynamics Convair 580, General Dynam-
ics Convair 600, General Dynamics 
Convair 640, deHavilland Aircraft Com-
pany Ltd. DHC–7, Fairchild Industries 
FH 227, Fokker F–27 (except Mark 50), 

F–28 Mark 1000 and Mark 4000, Gulf-
stream Aerospace G–159, Jetstream 4100 
Series, Lockheed Aircraft Corporation 
Electra 10–A, Lockheed Aircraft Cor-
poration Electra 10–B, Lockheed Air-
craft Corporation Electra 10–E, Lock-
heed Aircraft Corporation Electra L– 
188, Lockheed Martin Model 382 (L–100) 
Hercules, Maryland Air Industries, Inc. 
F27, Mitsubishi Heavy Industries, Ltd. 
YS–11, Short Bros. Limited SD3–30, 
Short Bros. Limited SD3–60. 

(m) All aircraft subject to the re-

quirements of this section that are 
manufactured on or after April 7, 2010, 
must have a digital flight data recorder 
installed that also— 

(1) Meets the requirements of 

§ 25.1459(a)(3), (a)(7), and (a)(8) of this 
chapter; and 

(2) Retains the 25 hours of recorded 

information required in paragraph (h) 
of this section using a recorder that 
meets the standards of TSO–C124a, or 
later revision. 

(n) In addition to all other applicable 

requirements of this section, all Boeing 
737 model airplanes manufactured after 
August 18, 2000 must record the param-
eters listed in paragraphs (a)(88) 
through (a)(91) of this section within 
the ranges, accuracies, resolutions, and 
recording intervals specified in Appen-
dix M to this part. Compliance with 
this paragraph is required no later 
than February 2, 2011. 

[Doc. No. 28109, 62 FR 38378, July 17, 1997; 62 
FR 48135, Sept. 12, 1997, as amended by Amdt. 
121–300, 68 FR 42936, July 18, 2003; 68 FR 50069, 
Aug. 20, 2003; Amdt. 121–338, 73 FR 12565, Mar. 
7, 2008; Amdt. 121–342, 73 FR 73178, Dec. 2, 
2008; Amdt. 121–338, 74 FR 32800, July 9, 2009] 

§ 121.344a Digital flight data recorders 

for 10–19 seat airplanes. 

(a) Except as provided in paragraph 

(f) of this section, no person may oper-
ate under this part a turbine-engine- 
powered airplane having a passenger 
seating configuration, excluding any 
required crewmember seat, of 10 to 19 
seats, that was brought onto the U.S. 
register after, or was registered outside 
the United States and added to the op-
erator’s U.S. operations specifications 
after, October 11, 1991, unless it is 
equipped with one or more approved 
flight recorders that use a digital 
method of recording and storing data 

background image

147 

Federal Aviation Administration, DOT 

§ 121.344a 

and a method of readily retrieving that 
data from the storage medium. On or 
before August 20, 2001, airplanes 
brought onto the U.S. register after Oc-
tober 11, 1991, must comply with either 
the requirements in this section or the 
applicable paragraphs in § 135.152 of this 
chapter. In addition, by August 20, 2001. 

(1) The parameters listed in 

§§ 121.344(a)(1) through 121.344(a)(18) of 
this part must be recorded with the 
ranges, accuracies, and resolutions 
specified in Appendix B of part 135 of 
this chapter, except that— 

(i) Either the parameter listed in 

§ 121.344 (a)(12) or (a)(15) of this part 
must be recorded; either the param-
eters listed in § 121.344(a)(13) or (a)(16) 
of this part must be recorded; and ei-
ther the parameter listed in 
§ 121.344(a)(14) or (a)(17) of this part 
must be recorded. 

(ii) For airplanes with more than two 

engines, the parameter described in 
§ 121.344(a)(18) of this part must also be 
recorded if sufficient capacity is avail-
able on the existing recorder to record 
that parameter; 

(iii) Parameters listed in 

§§ 121.344(a)(12) through 121.344(a)(17) of 
this part each may be recorded from a 
single source; 

(iv) Any parameter for which no 

value is contained in Appendix B of 
part 135 of this chapter must be re-
corded within the ranges, accuracies, 
and resolutions specified in Appendix 
M of this part. 

(2) Commensurate with the capacity 

of the recording system (FDAU or 
equivalent and the DFDR), the param-
eters listed in §§ 121.344(a)(19) through 
121.344(a)(22) of this part also must be 
recorded within the ranges, accuracies, 
resolutions, and recording intervals 
specified in Appendix B of part 135 of 
this chapter. 

(3) The approved flight recorder re-

quired by this section must be installed 
as soon as practicable, but no later 
than the next heavy maintenance 
check or equivalent after August 18, 
1999. A heavy maintenance check is 
considered to be any time an airplane 
is scheduled to be out of service for 4 
more days and is scheduled to include 
access to major structural components. 

(b) For a turbine-engine-powered air-

planes having a passenger seating con-

figuration, excluding any required 
crewmember seat, of 10 to 19 seats, that 
are manufactured after August 18, 2000. 

(1) The parameters listed in 

§§ 121.344(a)(1) through 121.344(a)(57) of 
this part, must be recorded within the 
ranges, accuracies, resolutions, and re-
cording intervals specified in Appendix 
M of this part. 

(2) Commensurate with the capacity 

of the recording system, all additional 
parameters listed in § 121.344(a) of this 
part for which information sources are 
installed and which are connected to 
the recording system, must be recorded 
within the ranges, accuracies, resolu-
tions, and sampling intervals specified 
in Appendix M of this part by August 
20, 2001. 

(c) For all turbine-engine-powered 

airplanes having a passenger seating 
configuration, excluding any required 
crewmember seats, of 10 to 19 seats, 
that are manufactured after August 19, 
2002, the parameters listed in 
§ 121.344(a)(1) through (a)(88) of this 
part must be recorded within the 
ranges, accuracies, resolutions, and re-
cording intervals specified in Appendix 
M of this part. 

(d) Each flight data recorder system 

required by this section must be in-
stalled in accordance with the require-
ments of § 23.1459(a) (except paragraphs 
(a)(3)(ii) and (6)), (b), (d) and (e) of this 
chapter. A correlation must be estab-
lished between the values recorded by 
the flight data recorder and the cor-
responding values being measured. The 
correlation must contain a sufficient 
number of correlation points to accu-
rately establish the conversion from 
the recorded values to engineering 
units or discrete state over the full op-
erating range of the parameter. A sin-
gle correlation may be established for 
any group of airplanes— 

(1) That are of the same type; 
(2) On which the flight recorder sys-

tem and its installation are the same; 
and 

(3) On which there is no difference in 

the type design with respect to the in-
stallation of those sensors associated 
with the flight data recorder system. 
Correlation documentation must be 
maintained by the certificate holder. 

background image

148 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.345 

(e) All airplanes subject to this sec-

tion are also subject to the require-
ments and exceptions stated in 
§ 121.344(g) through (k) and § 121.346. 

(f) For airplanes that were manufac-

tured before August 18, 1997, the fol-
lowing airplane types need not comply 
with this section, but must continue to 
comply with applicable paragraphs of 
§ 135.152 of this chapter, as appropriate: 
Beech Aircraft–99 Series, Beech Air-
craft 1300, Beech Aircraft 1900C, 
Construcciones Aeronauticas, S.A. 
(CASA) C–212, deHavilland DHC–6, 
Dornier 228, HS–748, Embraer EMB 110, 
Jetstream 3101, Jetstream 3201, Fair-
child Aircraft SA–226, Fairchild Metro 
SA–227. 

(g) All airplanes subject to the re-

quirements of this section that are 
manufactured on or after April 7, 2010, 
must have a digital flight data recorder 
installed that also— 

(1) Meets the requirements in 

§ 23.1459(a)(3), (a)(6), and (a)(7) or 
§ 25.1459(a)(3), (a)(7), and (a)(8) of this 
chapter, as applicable; and 

(2) Retains the 25 hours of recorded 

information required in § 121.344(g) 
using a recorder that meets the stand-
ards of TSO–C124a, or later revision. 

[Doc. No. 28109, 62 FR 38380, July 17, 1997; 62 
FR 48135, Sept. 12, 1997; 62 FR 65202, Dec. 11, 
1997, as amended by Amdt. 121–300, 68 FR 
42936, July 18, 2003; Amdt. 121–338, 73 FR 
12566, Mar. 7, 2008; Amdt. 121–338, 74 FR 32801, 
July 9, 2009; Amdt. 121–347, 75 FR 7356, Feb. 
19, 2010] 

§ 121.345 Radio equipment. 

(a) No person may operate an air-

plane unless it is equipped with radio 
equipment required for the kind of op-
eration being conducted. 

(b) Where two independent (separate 

and complete) radio systems are re-
quired by §§ 121.347 and 121.349, each 
system must have an independent an-
tenna installation except that, where 
rigidly supported nonwire antennas or 
other antenna installations of equiva-
lent reliability are used, only one an-
tenna is required. 

(c) ATC transponder equipment in-

stalled within the time periods indi-
cated below must meet the perform-
ance and environmental requirements 
of the following TSO’s: 

(1) 

Through January 1, 1992: 

(i) Any 

class of TSO-C74b or any class of TSO- 
C74c as appropriate, provided that the 
equipment was manufactured before 
January 1, 1990; or 

(ii) The appropriate class of TSO-C112 

(Mode S). 

(2) 

After January 1, 1992: 

The appro-

priate class of TSO-C112 (Mode S). For 
purposes of paragraph (c) (2) of this sec-
tion, ‘‘installation’’ does not include— 

(i) Temporary installation of TSO- 

C74b or TSO-C74c substitute equip-
ment, as appropriate, during mainte-
nance of the permanent equipment; 

(ii) Reinstallation of equipment after 

temporary removal for maintenance; or 

(iii) For fleet operations, installation 

of equipment in a fleet aircraft after 
removal of the equipment for mainte-
nance from another aircraft in the 
same operator’s fleet. 

[Doc. No. 6258, 29 FR 19205, Dec. 31, 1964, as 
amended by Amdt. 121–101, 37 FR 28499, Dec. 
27, 1972; Amdt. 121–190, 52 FR 3391, Feb. 3, 
1987] 

§ 121.346 Flight data recorders: fil-

tered data. 

(a) A flight data signal is filtered 

when an original sensor signal has been 
changed in any way, other than 
changes necessary to: 

(1) Accomplish analog to digital con-

version of the signal; 

(2) Format a digital signal to be 

DFDR compatible; or 

(3) Eliminate a high frequency com-

ponent of a signal that is outside the 
operational bandwidth of the sensor. 

(b) An original sensor signal for any 

flight recorder parameter required to 
be recorded under § 121.344 may be fil-
tered only if the recorded signal value 
continues to meet the requirements of 
Appendix B or M of this part, as appli-
cable. 

(c) For a parameter described in 

§ 121.344(a) (12) through (17), (42), or (88), 
or the corresponding parameter in Ap-
pendix B of this part, if the recorded 
signal value is filtered and does not 
meet the requirements of Appendix B 
or M of this part, as applicable, the cer-
tificate holder must: 

(1) Remove the filtering and ensure 

that the recorded signal value meets 
the requirements of Appendix B or M of 
this part, as applicable; or 

background image

149 

Federal Aviation Administration, DOT 

§ 121.349 

(2) Demonstrate by test and analysis 

that the original sensor signal value 
can be reconstructed from the recorded 
data. This demonstration requires 
that: 

(i) The FAA determine that the pro-

cedure and the test results submitted 
by the certificate holder as its compli-
ance with paragraph (c)(2) of this sec-
tion are repeatable; and 

(ii) The certificate holder maintains 

documentation of the procedure re-
quired to reconstruct the original sen-
sor signal value. This documentation is 
also subject to the requirements of 
§ 121.344(i). 

(d) 

Compliance. 

Compliance is re-

quired as follows: 

(1) No later than October 20, 2011, 

each operator must determine, for each 
airplane on its operations specifica-
tions, whether the airplane’s DFDR 
system is filtering any of the param-
eters listed in paragraph (c) of this sec-
tion. The operator must create a record 
of this determination for each airplane 
it operates, and maintain it as part of 
the correlation documentation re-
quired by § 121.344(j)(3) of this part. 

(2) For airplanes that are not fil-

tering any listed parameter, no further 
action is required unless the airplane’s 
DFDR system is modified in a manner 
that would cause it to meet the defini-
tion of filtering on any listed param-
eter. 

(3) For airplanes found to be filtering 

a parameter listed in paragraph (c) of 
this section, the operator must either: 

(i) No later than April 21, 2014, re-

move the filtering; or 

(ii) No later than April 22, 2013, sub-

mit the necessary procedure and test 
results required by paragraph (c)(2) of 
this section. 

(4) After April 21, 2014, no aircraft 

flight data recording system may filter 
any parameter listed in paragraph (c) 
of this section that does not meet the 
requirements of Appendix B or M of 
this part, unless the certificate holder 
possesses test and analysis procedures 
and the test results that have been ap-
proved by the FAA. All records of 
tests, analysis and procedures used to 
comply with this section must be 
maintained as part of the correlation 

documentation required by 
§ 121.344(j)(3) of this part. 

[Doc. No. FAA–2006–26135, 75 FR 7356, Feb. 19, 
2010] 

§ 121.347 Communication and naviga-

tion equipment for operations 
under VFR over routes navigated 

by pilotage. 

(a) No person may operate an air-

plane under VFR over routes that can 
be navigated by pilotage unless the air-
plane is equipped with the radio com-
munication equipment necessary under 
normal operating conditions to fulfill 
the following: 

(1) Communicate with at least one 

appropriate station from any point on 
the route; 

(2) Communicate with appropriate air 

traffic control facilities from any point 
within Class B, Class C, or Class D air-
space, or within a Class E surface area 
designated for an airport in which 
flights are intended; and 

(3) Receive meteorological informa-

tion from any point en route by either 
of two independent systems. One of the 
means provided to comply with this 
subparagraph may be used to comply 
with paragraphs (a)(1) and (2) of this 
section. 

(b) No person may operate an air-

plane at night under VFR over routes 
that can be navigated by pilotage un-
less that airplane is equipped with— 

(1) Radio communication equipment 

necessary under normal operating con-
ditions to fulfill the functions specified 
in paragraph (a) of this section; and 

(2) Navigation equipment suitable for 

the route to be flown. 

[Doc. No. 6258, 29 FR 19205, Dec. 31, 1964, as 
amended by Amdt. 121–226, 56 FR 65663, Dec. 
17, 1991; Amdt. 121–333, 72 FR 31681, June 7, 
2007] 

§ 121.349 Communication and naviga-

tion equipment for operations 

under VFR over routes not navi-

gated by pilotage or for operations 

under IFR or over the top. 

(a) 

Navigation equipment require-

ments—General. 

No person may conduct 

operations under VFR over routes that 
cannot be navigated by pilotage, or op-
erations conducted under IFR or over 
the top, unless— 

background image

150 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.351 

(1) The en route navigation aids nec-

essary for navigating the airplane 
along the route (e.g., ATS routes, ar-
rival and departure routes, and instru-
ment approach procedures, including 
missed approach procedures if a missed 
approach routing is specified in the 
procedure) are available and suitable 
for use by the aircraft navigation sys-
tems required by this section; 

(2) The airplane used in those oper-

ations is equipped with at least— 

(i) Except as provided in paragraph 

(c) of this section, two approved inde-
pendent navigation systems suitable 
for navigating the airplane along the 
route to be flown within the degree of 
accuracy required for ATC; 

(ii) One marker beacon receiver pro-

viding visual and aural signals; and 

(iii) One ILS receiver; and 
(3) Any RNAV system used to meet 

the navigation equipment require-
ments of this section is authorized in 
the certificate holder’s operations 
specifications. 

(b) 

Communication equipment require-

ments. 

No person may operate an air-

plane under VFR over routes that can-
not be navigated by pilotage, and no 
person may operate an airplane under 
IFR or over the top, unless the airplane 
is equipped with— 

(1) At least two independent commu-

nication systems necessary under nor-
mal operating conditions to fulfill the 
functions specified in § 121.347 (a); and 

(2) At least one of the communica-

tion systems required by paragraph 
(b)(1) of this section must have two- 
way voice communication capability. 

(c) 

Use of a single independent naviga-

tion system for operations under VFR over 
routes that cannot be navigated by pilot-
age, or operations conducted under IFR 
or over the top. 

Notwithstanding the re-

quirements of paragraph (a)(2)(i) of this 
section, the airplane may be equipped 
with a single independent navigation 
system suitable for navigating the air-
plane along the route to be flown with-
in the degree of accuracy required for 
ATC if: 

(1) It can be shown that the airplane 

is equipped with at least one other 
independent navigation system suit-
able, in the event of loss of the naviga-
tion capability of the single inde-
pendent navigation system permitted 

by this paragraph at any point along 
the route, for proceeding safely to a 
suitable airport and completing an in-
strument approach; and 

(2) The airplane has sufficient fuel so 

that the flight may proceed safely to a 
suitable airport by use of the remain-
ing navigation system, and complete 
an instrument approach and land. 

(d) 

Use of VOR navigation equipment. 

If VOR navigation equipment is used to 
comply with paragraph (a) or (c) of this 
section, no person may operate an air-
plane unless it is equipped with at least 
one approved DME or suitable RNAV 
system. 

(e) 

Additional communication system 

equipment requirements for operators sub-
ject to § 121.2. 

In addition to the require-

ments in paragraph (b) of this section, 
no person may operate an airplane hav-
ing a passenger seat configuration of 10 
to 30 seats, excluding each crewmember 
seat, and a maximum payload capacity 
of 7,500 pounds or less, under IFR, over 
the top, or in extended over-water op-
erations unless it is equipped with at 
least— 

(1) Two microphones; and 
(2) Two headsets, or one headset and 

one speaker. 

[Doc. No. FAA–2002–14002, 72 FR 31681, June 7, 
2007] 

§ 121.351 Communication and naviga-

tion equipment for extended over- 

water operations and for certain 

other operations. 

(a) Except as provided in paragraph 

(c) of this section, no person may con-
duct an extended over-water operation 
unless the airplane is equipped with at 
least two independent long-range navi-
gation systems and at least two inde-
pendent long-range communication 
systems necessary under normal oper-
ating conditions to fulfill the following 
functions— 

(1) Communicate with at least one 

appropriate station from any point on 
the route; 

(2) Receive meteorological informa-

tion from any point on the route by ei-
ther of two independent communica-
tion systems. One of the communica-
tion systems used to comply with this 
paragraph may be used to comply with 
paragraphs (a)(1) and (a)(3) of this sec-
tion; and 

background image

151 

Federal Aviation Administration, DOT 

§ 121.354 

(3) At least one of the communica-

tion systems must have two-way voice 
communication capability. 

(b) No certificate holder conducting a 

flag or supplemental operation or a do-
mestic operation within the State of 
Alaska may conduct an operation with-
out the equipment specified in para-
graph (a) of this section, if the Admin-
istrator finds that equipment to be 
necessary for search and rescue oper-
ations because of the nature of the ter-
rain to be flown over. 

(c) Notwithstanding the require-

ments of paragraph (a) of this section, 
installation and use of a single LRNS 
and a single LRCS may be authorized 
by the Administrator and approved in 
the certificate holder’s operations 
specifications for operations and routes 
in certain geographic areas. The fol-
lowing are among the operational fac-
tors the Administrator may consider in 
granting an authorization: 

(1) The ability of the flightcrew to 

navigate the airplane along the route 
within the degree of accuracy required 
for ATC, 

(2) The length of the route being 

flown, and 

(3) The duration of the very high fre-

quency communications gap. 

[Doc. No. 6258, 29 FR 19205, Dec. 31, 1964, as 
amended by Amdt. 121–253, 61 FR 2611, Jan. 
26, 1996; Amdt. 121–254, 61 FR 7191, Feb. 26, 
1996; Amdt. 121–333, 72 FR 31682, June 7, 2007] 

§ 121.353 Emergency equipment for op-

erations over uninhabited terrain 

areas: Flag, supplemental, and cer-

tain domestic operations. 

Unless the airplane has the following 

equipment, no person may conduct a 
flag or supplemental operation or a do-
mestic operation within the States of 
Alaska or Hawaii over an uninhabited 
area or any other area that (in its oper-
ations specifications) the Adminis-
trator specifies required equipment for 
search and rescue in case of an emer-
gency: 

(a) Suitable pyrotechnic signaling de-

vices. 

(b) An approved survival type emer-

gency locator transmitter. Batteries 
used in this transmitter must be re-
placed (or recharged, if the battery is 
rechargeable) when the transmitter has 
been in use for more than 1 cumulative 

hour, or when 50 percent of their useful 
life (or for rechargeable batteries, 50 
percent of their useful life of charge) 
has expired, as established by the 
transmitter manufacturer under its ap-
proval. The new expiration date for re-
placing (or recharging) the battery 
must be legibly marked on the outside 
of the transmitter. The battery useful 
life (or useful life of charge) require-
ments of this paragraph do not apply 
to batteries (such as water-activated 
batteries) that are essentially unaf-
fected during probable storage inter-
vals. 

(c) Enough survival kits, appro-

priately equipped for the route to be 
flown for the number of occupants of 
the airplane. 

[Doc. No. 6258, 29 FR 19205, Dec. 31, 1964, as 
amended by Amdt. 121–79, 36 FR 18724, Sept. 
21, 1971; Amdt. 121–106, 38 FR 22378 Aug. 20, 
1973; Amdt. 121–158, 45 FR 38348, June 9, 1980; 
Amdt. 121–239, 59 FR 32057, June 21, 1994; 
Amdt. 121–251, 60 FR 65932, Dec. 20, 1995] 

§ 121.354 Terrain awareness and warn-

ing system. 

(a) 

Airplanes manufactured after March 

29, 2002. 

No person may operate a tur-

bine-powered airplane unless that air-
plane is equipped with an approved ter-
rain awareness and warning system 
that meets the requirements for Class 
A equipment in Technical Standard 
Order (TSO)–C151. The airplane must 
also include an approved terrain situa-
tional awareness display. 

(b) 

Airplanes manufactured on or before 

March 29, 2002. 

No person may operate 

a turbine-powered airplane after March 
29, 2005, unless that airplane is 
equipped with an approved terrain 
awareness and warning system that 
meets the requirements for Class A 
equipment in Technical Standard Order 
(TSO)–C151. The airplane must also in-
clude an approved terrain situational 
awareness display. 

(Approved by the Office of Management and 
Budget under control number 2120–0631) 

(c) 

Airplane Flight Manual. 

The Air-

plane Flight Manual shall contain ap-
propriate procedures for— 

(1) The use of the terrain awareness 

and warning system; and 

(2) Proper flight crew reaction in re-

sponse to the terrain awareness and 

background image

152 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.355 

warning system audio and visual warn-
ings. 

[Doc. No. 29312, 65 FR 16755, Mar. 29, 2000] 

§ 121.355 Equipment for operations on 

which specialized means of naviga-
tion are used. 

(a) No certificate holder may conduct 

an operation— 

(1) Using Doppler Radar or an Iner-

tial Navigation System outside the 48 
contiguous States and the District of 
Columbia, unless such systems have 
been approved in accordance with ap-
pendix G to this part; or 

(2) Using Doppler Radar or an Iner-

tial Navigation System within the 48 
contiguous States and the District of 
Columbia, or any other specialized 
means of navigation, unless it shows 
that an adequate airborne system is 
provided for the specialized navigation 
authorized for the particular operation. 

(b) Notwithstanding paragraph (a) of 

this section, Doppler Radar and Iner-
tial Navigation Systems, and the train-
ing programs, maintenance programs, 
relevant operations manual material, 
and minimum equipment lists prepared 
in accordance therewith, approved be-
fore April 29, 1972, are not required to 
be approved in accordance with that 
paragraph. 

[Doc. No. 10204, 37 FR 6464, Mar. 30, 1972] 

§ 121.356 Collision avoidance system. 

Effective January 1, 2005, any air-

plane you operate under this part must 
be equipped and operated according to 
the following table: 

C

OLLISION

A

VOIDANCE

S

YSTEMS

 

If you operate any— 

Then you must operate that airplane 

with— 

(a) Turbine-powered 

airplane of more 
than 33,000 
pounds maximum 
certificated take-
off weight.

(1) An appropriate class of Mode S 

transponder that meets Technical 
Standard Order (TSO) C–112, or a 
later version, and one of the fol-
lowing approved units: 

(i) TCAS II that meets TSO C–119b 

(version 7.0), or takeoff weight a 
later version. 

C

OLLISION

A

VOIDANCE

S

YSTEMS

—Continued 

If you operate any— 

Then you must operate that airplane 

with— 

(ii) TCAS II that meets TSO C–119a 

(version 6.04A Enhanced) that was 
installed in that airplane before May 
1, 2003. If that TCAS II version 
6.04A Enhanced no longer can be 
repaired to TSO C–119a standards, 
it must be replaced with a TCAS II 
that meets TSO C–119b (version 
7.0), or a later version. 

(iii) A collision avoidance system equiv-

alent to TSO C–119b (version 7.0), 
or a later version, capable of coordi-
nating with units that meet TSO C– 
119a (version 6.04A Enhanced), or a 
later version. 

(b) Passenger or 

combination 
cargo/passenger 
(combi) airplane 
that has a pas-
senger seat con-
figuration of 10– 
30 seats.

(1) TCAS I that meets TSO C–118, or 

a later version, or 

(2) A collision avoidance system equiv-

alent to has a TSO C–118, or a later 
version, or 

(3) A collision avoidance system and 

Mode S transponder that meet para-
graph (a)(1) of this section. 

(c) Piston-powered 

airplane of more 
than 33,000 
pounds maximum 
certificated take-
off weight.

(1) TCAS I that meets TSO C–118, or 

a later version, or 

(2) A collision avoidance system equiv-

alent to maximum TSO C–118, or a 
later version, or 

(3) A collision avoidance system and 

Mode S transponder that meet para-
graph (a)(1) of this section. 

[Doc. No. FAA–2001–10910, 68 FR 15902, Apr. 1, 
2003] 

§ 121.357 Airborne weather radar 

equipment requirements. 

(a) No person may operate any trans-

port category airplane (except C–46 
type airplanes) or a nontransport cat-
egory airplane certificated after De-
cember 31, 1964, unless approved air-
borne weather radar equipment has 
been installed in the airplane. 

(b) [Reserved] 
(c) Each person operating an airplane 

required to have approved airborne 
weather radar equipment installed 
shall, when using it under this part, op-
erate it in accordance with the fol-
lowing: 

(1) 

Dispatch. 

No person may dispatch 

an airplane (or begin the flight of an 
airplane in the case of a certificate 
holder, that does not use a dispatch 
system) under IFR or night VFR condi-
tions when current weather reports in-
dicate that thunderstorms, or other po-
tentially hazardous weather conditions 
that can be detected with airborne 

background image

153 

Federal Aviation Administration, DOT 

§ 121.358 

weather radar, may reasonably be ex-
pected along the route to be flown, un-
less the airborne weather radar equip-
ment is in satisfactory operating con-
dition. 

(2) If the airborne weather radar be-

comes inoperative en route, the air-
plane must be operated in accordance 
with the approved instructions and 
procedures specified in the operations 
manual for such an event. 

(d) This section does not apply to air-

planes used solely within the State of 
Hawaii or within the State of Alaska 
and that part of Canada west of lon-
gitude 130 degrees W, between latitude 
70 degrees N, and latitude 53 degrees N, 
or during any training, test, or ferry 
flight. 

(e) Notwithstanding any other provi-

sion of this chapter, an alternate elec-
trical power supply is not required for 
airborne weather radar equipment. 

[Doc. No. 6258, 29 FR 19205, Dec. 31, 1964, as 
amended by Amdt. 121–18, 31 FR 5825, Apr. 15, 
1966; Amdt. 121–130, 41 FR 47229, Oct. 28, 1976; 
Amdt. 121–251, 60 FR 65932, Dec. 20, 1995] 

§ 121.358 Low-altitude windshear sys-

tem equipment requirements. 

(a) 

Airplanes manufactured after Janu-

ary 2, 1991. 

No person may operate a 

turbine-powered airplane manufac-
tured after January 2, 1991, unless it is 
equipped with either an approved air-
borne windshear warning and flight 
guidance system, an approved airborne 
detection and avoidance system, or an 
approved combination of these sys-
tems. 

(b) 

Airplanes manufactured before Jan-

uary 3, 1991. 

Except as provided in para-

graph (c) of this section, after January 
2, 1991, no person may operate a tur-
bine-powered airplane manufactured 
before January 3, 1991 unless it meets 
one of the following requirements as 
applicable. 

(1) The makes/models/series listed 

below must be equipped with either an 
approved airborne windshear warning 
and flight guidance system, an ap-
proved airborne detection and avoid-
ance system, or an approved combina-
tion of these systems: 

(i) A–300–600; 
(ii) A–310—all series; 
(iii) A–320—all series; 
(iv) B–737–300, 400, and 500 series; 

(v) B–747–400; 
(vi) B–757—all series; 
(vii) B–767—all series; 
(viii) F–100—all series; 
(ix) MD–11—all series; and 
(x) MD–80 series equipped with an 

EFIS and Honeywell-970 digital flight 
guidance computer. 

(2) All other turbine-powered air-

planes not listed above must be 
equipped with as a minimum require-
ment, an approved airborne windshear 
warning system. These airplanes may 
be equipped with an approved airborne 
windshear detection and avoidance sys-
tem, or an approved combination of 
these systems. 

(c) 

Extension of the compliance date. 

certificate holder may obtain an exten-
sion of the compliance date in para-
graph (b) of this section if it obtains 
FAA approval of a retrofit schedule. To 
obtain approval of a retrofit schedule 
and show continued compliance with 
that schedule, a certificate holder must 
do the following: 

(1) Submit a request for approval of a 

retrofit schedule by June 1, 1990, to the 
appropriate Flight Standards division 
manager in the responsible Flight 
Standards office. 

(2) Show that all of the certificate 

holder’s airplanes required to be 
equipped in accordance with this sec-
tion will be equipped by the final com-
pliance date established for TCAS II 
retrofit. 

(3) Comply with its retrofit schedule 

and submit status reports containing 
information acceptable to the Adminis-
trator. The initial report must be sub-
mitted by January 2, 1991, and subse-
quent reports must be submitted every 
six months thereafter until completion 
of the schedule. The reports must be 
submitted to the certificate holder’s 
assigned Principal Avionics Inspector. 

(d) 

Definitions. 

For the purposes of 

this section the following definitions 
apply— 

(1) 

Turbine-powered airplane 

includes, 

e.g., turbofan-, turbojet-, propfan-, and 
ultra-high bypass fan-powered air-
planes. The definition specifically ex-
cludes turbopropeller-powered air-
planes. 

background image

154 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.359 

(2) An airplane is considered manu-

factured on the date the inspection ac-
ceptance records reflect that the air-
plane is complete and meets the FAA 
Approved Type Design data. 

[Doc. No. 25954, 55 FR 13242, Apr. 9, 1990, as 
amended by Docket FAA–2018–0119, Amdt. 
121–380, 83 FR 9173, Mar. 5, 2018] 

§ 121.359 Cockpit voice recorders. 

(a) No certificate holder may operate 

a large turbine engine powered airplane 
or a large pressurized airplane with 
four reciprocating engines unless an 
approved cockpit voice recorder is in-
stalled in that airplane and is operated 
continuously from the start of the use 
of the checklist (before starting en-
gines for the purpose of flight), to com-
pletion of the final checklist at the ter-
mination of the flight. 

(b) [Reserved] 
(c) The cockpit voice recorder re-

quired by paragraph (a) of this section 
must meet the following application 
standards: 

(1) The requirements of part 25 of this 

chapter in affect on August 31, 1977. 

(2) After September 1, 1980, each re-

corder container must— 

(i) Be either bright orange or bright 

yellow; 

(ii) Have reflective tape affixed to the 

external surface to facilitate its loca-
tion under water; and 

(iii) Have an approved underwater lo-

cating device on or adjacent to the con-
tainer which is secured in such a man-
ner that they are not likely to be sepa-
rated during crash impact, unless the 
cockpit voice recorder, and the flight 
recorder required by § 121.343, are in-
stalled adjacent to each other in such a 
manner that they are not likely to be 
separated during crash impact. 

(d) No person may operate a multien-

gine, turbine-powered airplane having 
a passenger seat configuration of 10–19 
seats unless it is equipped with an ap-
proved cockpit voice recorder that: 

(1) Is installed in compliance with 

§ 23.1457(a)(1) and (2), (b), (c), (d)(1)(i), 
(2) and (3), (e), (f), and (g); or 
§ 25.1457(a)(1) and (2), (b), (c), (d)(1)(i), 
(2) and (3), (e), (f), and (g) of this chap-
ter, as applicable; and 

(2) Is operated continuously from the 

use of the checklist before the flight to 

completion of the final checklist at the 
end of the flight. 

(e) No person may operate a multien-

gine, turbine-powered airplane having 
a passenger seat configuration of 20 to 
30 seats unless it is equipped with an 
approved cockpit voice recorder that— 

(1) Is installed in accordance with the 

requirements of § 23.1457 (except para-
graphs (a)(6), (d)(1)(ii), (4), and (5)) or 
§ 25.1457 (except paragraphs (a)(6), 
(d)(1)(ii), (4), and (5)) of this chapter, as 
applicable; and 

(2) Is operated continuously from the 

use of the checklist before the flight to 
completion of the final checklist at the 
end of the flight. 

(f) In complying with this section, an 

approved cockpit voice recorder having 
an erasure feature may be used, so that 
at any time during the operation of the 
recorder, information recorded more 
than 30 minutes earlier may be erased 
or otherwise obliterated. 

(g) For those aircraft equipped to 

record the uninterrupted audio signals 
received by a boom or a mask micro-
phone, the flight crewmembers are re-
quired to use the boom microphone 
below 18,000 feet mean sea level. No 
person may operate a large turbine en-
gine powered airplane or a large pres-
surized airplane with four recipro-
cating engines manufactured after Oc-
tober 11, 1991, or on which a cockpit 
voice recorder has been installed after 
October 11, 1991, unless it is equipped to 
record the uninterrupted audio signal 
received by a boom or mask micro-
phone in accordance with § 25.1457(c)(5) 
of this chapter. 

(h) In the event of an accident or oc-

currence requiring immediate notifica-
tion of the National Transportation 
Safety Board under 49 CFR part 830 of 
its regulations, which results in the 
termination of the flight, the certifi-
cate holder shall keep the recorded in-
formation for at least 60 days or, if re-
quested by the Administrator or the 
Board, for a longer period. Information 
obtained from the record is used to as-
sist in determining the cause of acci-
dents or occurrences in connection 
with investigations under 49 CFR part 
830. The Administrator does not use the 
record in any civil penalty or certifi-
cate action. 

background image

155 

Federal Aviation Administration, DOT 

§ 121.363 

(i) By April 7, 2012, all turbine en-

gine-powered airplanes subject to this 
section that are manufactured before 
April 7, 2010, must have a cockpit voice 
recorder installed that also— 

(1) Meets the requirements of 

§ 23.1457(d)(6) or § 25.1457(d)(6) of this 
chapter, as applicable; 

(2) Retains at least the last 2 hours of 

recorded information using a recorder 
that meets the standards of TSO–C123a, 
or later revision; and 

(3) Is operated continuously from the 

use of the checklist before the flight to 
completion of the final checklist at the 
end of the flight. 

(4) If transport category, meets the 

requirements in § 25.1457(a)(3), (a)(4), 
and (a)(5) of this chapter. 

(j) All turbine engine-powered air-

planes subject to this section that are 
manufactured on or after April 7, 2010, 
must have a cockpit voice recorder in-
stalled that also— 

(1) Is installed in accordance with the 

requirements of § 23.1457 (except for 
paragraph (a)(6) or § 25.1457 (except for 
paragraph (a)(6)) of this chapter, as ap-
plicable; 

(2) Retains at least the last 2 hours of 

recorded information using a recorder 
that meets the standards of TSO–C123a, 
or later revision; and 

(3) Is operated continuously from the 

use of the checklist before the flight to 
completion of the final checklist at the 
end of the flight. 

(4) For all airplanes manufactured on 

or after December 6, 2010, also meets 
the requirements of § 23.1457(a)(6) or 
§ 25.1457(a)(6) of this chapter, as appli-
cable. 

(k) All airplanes required by this part 

to have a cockpit voice recorder and a 
flight data recorder, that install 
datalink communication equipment on 
or after December 6, 2010, must record 
all datalink messages as required by 
the certification rule applicable to the 
airplane. 

[Doc. No. 6258, 29 FR 19205, Dec. 31, 1964] 

E

DITORIAL

N

OTE

: For F

EDERAL

R

EGISTER

ci-

tations affecting § 121.359, see the List of CFR 
Sections Affected, which appears in the 
Finding Aids section of the printed volume 
and at 

www.govinfo.gov. 

§ 121.360 [Reserved] 

Subpart L—Maintenance, Preven-

tive Maintenance, and Alter-
ations 

S

OURCE

: Docket No. 6258, 29 FR 19210, Dec. 

31, 1964, unless otherwise noted. 

§ 121.361 Applicability. 

(a) Except as provided by paragraph 

(b) of this section, this subpart pre-
scribes requirements for maintenance, 
preventive maintenance, and alter-
ations for all certificate holders. 

(b) The Administrator may amend a 

certificate holder’s operations speci-
fications to permit deviation from 
those provisions of this subpart that 
would prevent the return to service and 
use of airframe components, power-
plants, appliances, and spare parts 
thereof because those items have been 
maintained, altered, or inspected by 
persons employed outside the United 
States who do not hold U.S. airman 
certificates. Each certificate holder 
who uses parts under this deviation 
must provide for surveillance of facili-
ties and practices to assure that all 
work performed on these parts is ac-
complished in accordance with the cer-
tificate holder’s manual. 

[Doc. No. 8754, 33 FR 14406, Sept. 25, 1968] 

§ 121.363 Responsibility for airworthi-

ness. 

(a) Each certificate holder is pri-

marily responsible for— 

(1) The airworthiness of its aircraft, 

including airframes, aircraft engines, 
propellers, appliances, and parts there-
of; and 

(2) The performance of the mainte-

nance, preventive maintenance, and al-
teration of its aircraft, including air-
frames, aircraft engines, propellers, ap-
pliances, emergency equipment, and 
parts thereof, in accordance with its 
manual and the regulations of this 
chapter. 

(b) A certificate holder may make ar-

rangements with another person for 
the performance of any maintenance, 
preventive maintenance, or alter-
ations. However, this does not relieve 

background image

156 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.365 

the certificate holder of the responsi-
bility specified in paragraph (a) of this 
section. 

[Doc. No. 6258, 29 FR 19210, Dec. 31, 1964, as 
amended by Amdt. 121–106, 38 FR 22378, Aug. 
20, 1973] 

§ 121.365 Maintenance, preventive 

maintenance, and alteration organi-

zation. 

(a) Each certificate holder that per-

forms any of its maintenance (other 
than required inspections), preventive 
maintenance, or alterations, and each 
person with whom it arranges for the 
performance of that work must have an 
organization adequate to perform the 
work. 

(b) Each certificate holder that per-

forms any inspections required by its 
manual in accordance with 
§ 121.369(b)(2) or (3) (in this subpart re-
ferred to as 

required inspections

) and 

each person with whom it arranges for 
the performance of that work must 
have an organization adequate to per-
form that work. 

(c) Each person performing required 

inspections in addition to other main-
tenance, preventive maintenance, or 
alterations, shall organize the perform-
ance of those functions so as to sepa-
rate the required inspection functions 
from the other maintenance, preven-
tive maintenance, and alteration func-
tions. The separation shall be below 
the level of administrative control at 
which overall responsibility for the re-
quired inspection functions and other 
maintenance, preventive maintenance, 
and alteration functions are exercised. 

[Doc. No. 6258, 29 FR 19210, Dec. 31, 1964, as 
amended by Amdt. 121–3, 30 FR 3639, Mar. 19, 
1965] 

§ 121.367 Maintenance, preventive 

maintenance, and alterations pro-

grams. 

Each certificate holder shall have an 

inspection program and a program cov-
ering other maintenance, preventive 
maintenance, and alterations that en-
sures that— 

(a) Maintenance, preventive mainte-

nance, and alterations performed by it, 
or by other persons, are performed in 
accordance with the certificate hold-
er’s manual; 

(b) Competent personnel and ade-

quate facilities and equipment are pro-
vided for the proper performance of 
maintenance, preventive maintenance, 
and alterations; and 

(c) Each aircraft released to service 

is airworthy and has been properly 
maintained for operation under this 
part. 

[Doc. No. 6258, 29 FR 19210, Dec. 31, 1964, as 
amended by Amdt. 121–100, 37 FR 28053, Dec. 
20, 1972] 

§ 121.368 Contract maintenance. 

(a) A certificate holder may arrange 

with another person for the perform-
ance of maintenance, preventive main-
tenance, and alterations as authorized 
in § 121.379(a) only if the certificate 
holder has met all the requirements in 
this section. For purposes of this sec-
tion— 

(1) A 

maintenance provider 

is any per-

son who performs maintenance, preven-
tive maintenance, or an alteration for 
a certificate holder other than a person 
who is trained by and employed di-
rectly by that certificate holder. 

(2) 

Covered work 

means any of the fol-

lowing: 

(i) Essential maintenance that could 

result in a failure, malfunction, or de-
fect endangering the safe operation of 
an aircraft if not performed properly or 
if improper parts or materials are used; 

(ii) Regularly scheduled mainte-

nance; or 

(iii) A required inspection item on an 

aircraft. 

(3) 

Directly in charge 

means having re-

sponsibility for covered work per-
formed by a maintenance provider. A 
representative of the certificate holder 
directly in charge of covered work does 
not need to physically observe and di-
rect each maintenance provider con-
stantly, but must be available for con-
sultation on matters requiring instruc-
tion or decision. 

(b) Each certificate holder must be 

directly in charge of all covered work 
done for it by a maintenance provider. 

(c) Each maintenance provider must 

perform all covered work in accordance 
with the certificate holder’s mainte-
nance manual. 

(d) No maintenance provider may 

perform covered work unless that work 

background image

157 

Federal Aviation Administration, DOT 

§ 121.369 

is carried out under the supervision 
and control of the certificate holder. 

(e) Each certificate holder who con-

tracts for maintenance, preventive 
maintenance, or alterations must de-
velop and implement policies, proce-
dures, methods, and instructions for 
the accomplishment of all contracted 
maintenance, preventive maintenance, 
and alterations. These policies, proce-
dures, methods, and instructions must 
provide for the maintenance, preven-
tive maintenance, and alterations to be 
performed in accordance with the cer-
tificate holder’s maintenance program 
and maintenance manual. 

(f) Each certificate holder who con-

tracts for maintenance, preventive 
maintenance, or alterations must en-
sure that its system for the continuing 
analysis and surveillance of the main-
tenance, preventive maintenance, and 
alterations carried out by the mainte-
nance provider, as required by 
§ 121.373(a), contains procedures for 
oversight of all contracted covered 
work. 

(g) The policies, procedures, methods, 

and instructions required by para-
graphs (e) and (f) of this section must 
be acceptable to the FAA and included 
in the certificate holder’s maintenance 
manual as required by§ 121.369(b)(10). 

(h) Each certificate holder who con-

tracts for maintenance, preventive 
maintenance, or alterations must pro-
vide to its responsible Flight Standards 
office, in a format acceptable to the 
FAA, a list that includes the name and 
physical (street) address, or addresses, 
where the work is carried out for each 
maintenance provider that performs 
work for the certificate holder, and a 
description of the type of maintenance, 
preventive maintenance, or alteration 
that is to be performed at each loca-
tion. The list must be updated with 
any changes, including additions or de-
letions, and the updated list provided 
to the FAA in a format acceptable to 
the FAA by the last day of each cal-
endar month. 

[Docket FAA–2011–1136, Amdt. 121–371, 80 FR 
11546, Mar. 4, 2015, as amended by Docket 
FAA–2018–0119, Amdt. 121–380, 83 FR 9173, 
Mar. 5, 2018] 

§ 121.369 Manual requirements. 

(a) The certificate holder shall put in 

its manual a chart or description of the 
certificate holder’s organization re-
quired by § 121.365 and a list of persons 
with whom it has arranged for the per-
formance of any of its required inspec-
tions, other maintenance, preventive 
maintenance, or alterations, including 
a general description of that work. 

(b) The certificate holder’s manual 

must contain the programs required by 
§ 121.367 that must be followed in per-
forming maintenance, preventive 
maintenance, and alterations of that 
certificate holder’s airplanes, including 
airframes, aircraft engines, propellers, 
appliances, emergency equipment, and 
parts thereof, and must include at least 
the following: 

(1) The method of performing routine 

and nonroutine maintenance (other 
than required inspections), preventive 
maintenance, and alterations. 

(2) A designation of the items of 

maintenance and alteration that must 
be inspected (required inspections), in-
cluding at least those that could result 
in a failure, malfunction, or defect en-
dangering the safe operation of the air-
craft, if not performed properly or if 
improper parts or materials are used. 

(3) The method of performing re-

quired inspections and a designation by 
occupational title of personnel author-
ized to perform each required inspec-
tion. 

(4) Procedures for the reinspection of 

work performed pursuant to previous 
required inspection findings (

buy-back 

procedures

). 

(5) Procedures, standards, and limits 

necessary for required inspections and 
acceptance or rejection of the items re-
quired to be inspected and for periodic 
inspection and calibration of precision 
tools, measuring devices, and test 
equipment. 

(6) Procedures to ensure that all re-

quired inspections are performed. 

(7) Instructions to prevent any per-

son who performs any item of work 
from performing any required inspec-
tion of that work. 

(8) Instructions and procedures to 

prevent any decision of an inspector, 
regarding any required inspection from 
being countermanded by persons other 

background image

158 

14 CFR Ch. I (1–1–24 Edition) 

§§ 121.370–121.370a 

than supervisory personnel of the in-
spection unit, or a person at that level 
of administrative control that has 
overall responsibility for the manage-
ment of both the required inspection 
functions and the other maintenance, 
preventive maintenance, and alter-
ations functions. 

(9) Procedures to ensure that re-

quired inspections, other maintenance, 
preventive maintenance, and alter-
ations that are not completed as a re-
sult of shift changes or similar work 
interruptions are properly completed 
before the aircraft is released to serv-
ice. 

(10) Policies, procedures, methods, 

and instructions for the accomplish-
ment of all maintenance, preventive 
maintenance, and alterations carried 
out by a maintenance provider. These 
policies, procedures, methods, and in-
structions must be acceptable to the 
FAA and provide for the maintenance, 
preventive maintenance, and alter-
ations to be performed in accordance 
with the certificate holder’s mainte-
nance program and maintenance man-
ual. 

(c) The certificate holder must set 

forth in its manual a suitable system 
(which may include a coded system) 
that provides for preservation and re-
trieval of information in a manner ac-
ceptable to the Administrator and that 
provides— 

(1) A description (or reference to data 

acceptable to the Administrator) of the 
work performed; 

(2) The name of the person per-

forming the work if the work is per-
formed by a person outside the organi-
zation of the certificate holder; and 

(3) The name or other positive identi-

fication of the individual approving the 
work. 

[Doc. No. 6258, 29 FR 19210, Dec. 31, 1964, as 
amended by Amdt. 121–94, 37 FR 15983, Aug. 9, 
1972; Amdt. 121–106, 38 FR 22378, Aug. 20, 1973; 
Docket FAA–2011–1136, Amdt. 121–371, 80 FR 
11546, Mar. 4, 2015] 

§§ 121.370–121.370a [Reserved] 

§ 121.371 Required inspection per-

sonnel. 

(a) No person may use any person to 

perform required inspections unless the 
person performing the inspection is ap-

propriately certificated, properly 
trained, qualified, and authorized to do 
so. 

(b) No person may allow any person 

to perform a required inspection un-
less, at that time, the person per-
forming that inspection is under the 
supervision and control of an inspec-
tion unit. 

(c) No person may perform a required 

inspection if he performed the item of 
work required to be inspected. 

(d) Each certificate holder shall 

maintain, or shall determine that each 
person with whom it arranges to per-
form its required inspections main-
tains, a current listing of persons who 
have been trained, qualified, and au-
thorized to conduct required inspec-
tions. The persons must be identified 
by name, occupational title, and the 
inspections that they are authorized to 
perform. The certificate holder (or per-
son with whom it arranges to perform 
its required inspections) shall give 
written information to each person so 
authorized describing the extent of his 
responsibilities, authorities, and 
inspectional limitations. The list shall 
be made available for inspection by the 
Administrator upon request. 

§ 121.373 Continuing analysis and sur-

veillance. 

(a) Each certificate holder shall es-

tablish and maintain a system for the 
continuing analysis and surveillance of 
the performance and effectiveness of 
its inspection program and the pro-
gram covering other maintenance, pre-
ventive maintenance, and alterations 
and for the correction of any deficiency 
in those programs, regardless of wheth-
er those programs are carried out by 
the certificate holder or by another 
person. 

(b) Whenever the Administrator finds 

that either or both of the programs de-
scribed in paragraph (a) of this section 
does not contain adequate procedures 
and standards to meet the require-
ments of this part, the certificate hold-
er shall, after notification by the Ad-
ministrator, make any changes in 
those programs that are necessary to 
meet those requirements. 

(c) A certificate holder may petition 

the Administrator to reconsider the 
notice to make a change in a program. 

background image

159 

Federal Aviation Administration, DOT 

§ 121.374 

The petition must be filed with the re-
sponsible Flight Standards office 
charged with the overall inspection of 
the certificate holder’s operations 
within 30 days after the certificate 
holder receives the notice. Except in 
the case of an emergency requiring im-
mediate action in the interest of safe-
ty, the filing of the petition stays the 
notice pending a decision by the Ad-
ministrator. 

[Doc. No. 6258, 29 FR 19210, Dec. 31, 1964, as 
amended by Amdt. 121–207, 54 FR 39293, Sept. 
25, 1989; Amdt. 121–253, 61 FR 2611, Jan. 26, 
1996; Docket FAA–2018–0119, Amdt. 121–380, 83 
FR 9173, Mar. 5, 2018] 

§ 121.374 Continuous airworthiness 

maintenance program (CAMP) for 
two-engine ETOPS. 

In order to conduct an ETOPS flight 

using a two-engine airplane, each cer-
tificate holder must develop and com-
ply with the ETOPS continuous air-
worthiness maintenance program, as 
authorized in the certificate holder’s 
operations specifications, for each air-
plane-engine combination used in 
ETOPS. The certificate holder must 
develop this ETOPS CAMP by 
supplementing the manufacturer’s 
maintenance program or the CAMP 
currently approved for the certificate 
holder. This ETOPS CAMP must in-
clude the following elements: 

(a) 

ETOPS maintenance document. 

The 

certificate holder must have an ETOPS 
maintenance document for use by each 
person involved in ETOPS. 

(1) The document must— 
(i) List each ETOPS significant sys-

tem, 

(ii) Refer to or include all of the 

ETOPS maintenance elements in this 
section, 

(iii) Refer to or include all supportive 

programs and procedures, 

(iv) Refer to or include all duties and 

responsibilities, and 

(v) Clearly state where referenced 

material is located in the certificate 
holder’s document system. 

(b) 

ETOPS pre-departure service check. 

Except as provided in Appendix P of 
this part, the certificate holder must 
develop a pre-departure check tailored 
to their specific operation. 

(1) The certificate holder must com-

plete a pre-departure service check im-
mediately before each ETOPS flight. 

(2) At a minimum, this check must— 
(i) Verify the condition of all ETOPS 

Significant Systems; 

(ii) Verify the overall status of the 

airplane by reviewing applicable main-
tenance records; and 

(iii) Include an interior and exterior 

inspection to include a determination 
of engine and APU oil levels and con-
sumption rates. 

(3) An appropriately trained mainte-

nance person, who is ETOPS qualified, 
must accomplish and certify by signa-
ture ETOPS specific tasks. Before an 
ETOPS flight may commence, an 
ETOPS pre-departure service check 
(PDSC) Signatory Person, who has 
been authorized by the certificate hold-
er, must certify by signature, that the 
ETOPS PDSC has been completed. 

(4) For the purposes of this paragraph 

(b) only, the following definitions 
apply: 

(i) ETOPS qualified person: A person 

is ETOPS qualified when that person 
satisfactorily completes the operator’s 
ETOPS training program and is au-
thorized by the certificate holder. 

(ii) ETOPS PDSC Signatory Person: 

A person is an ETOPS PDSC Signatory 
Person when that person is ETOPS 
qualified and that person: 

(A) When certifying the completion 

of the ETOPS PDSC in the United 
States: 

(

1

) Works for an operator authorized 

to engage in part 121 operation or 
works for a part 145 repair station; and 

(

2

) Holds a U.S. Mechanic’s Certifi-

cate with airframe and powerplant rat-
ings. 

(B) When certifying the completion 

of the ETOPS PDSC outside of the U.S. 
holds a certificate in accordance with 
§ 43.17(c)(1) of this chapter; or 

(C) When certifying the completion 

of the ETOPS PDSC outside the U.S. 
holds the certificates needed or has the 
requisite experience or training to re-
turn aircraft to service on behalf of an 
ETOPS maintenance entity. 

(iii) ETOPS maintenance entity: An 

entity authorized to perform ETOPS 
maintenance and complete ETOPS 
PDSC and that entity is: 

background image

160 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.374 

(A) Certificated to engage in part 121 

operations; 

(B) Repair station certificated under 

part 145 of this chapter; or 

(C) Entity authorized pursuant to 

§ 43.17(c)(2) of this chapter. 

(c) 

Limitations on dual maintenance. 

(1) Except as specified in paragraph 
(c)(2), the certificate holder may not 
perform scheduled or unscheduled dual 
maintenance during the same mainte-
nance visit on the same or a substan-
tially similar ETOPS Significant Sys-
tem listed in the ETOPS maintenance 
document, if the improper mainte-
nance could result in the failure of an 
ETOPS Significant System. 

(2) In the event dual maintenance as 

defined in paragraph (c)(1) of this sec-
tion cannot be avoided, the certificate 
holder may perform maintenance pro-
vided: 

(i) The maintenance action on each 

affected ETOPS Significant System is 
performed by a different technician, or 

(ii) The maintenance action on each 

affected ETOPS Significant System is 
performed by the same technician 
under the direct supervision of a sec-
ond qualified individual; and 

(iii) For either paragraph (c)(2)(i) or 

(ii) of this section, a qualified indi-
vidual conducts a ground verification 
test and any in-flight verification test 
required under the program developed 
pursuant to paragraph (d) of this sec-
tion. 

(d) 

Verification program. 

The certifi-

cate holder must develop and maintain 
a program for the resolution of discrep-
ancies that will ensure the effective-
ness of maintenance actions taken on 
ETOPS Significant Systems. The 
verification program must identify po-
tential problems and verify satisfac-
tory corrective action. The verification 
program must include ground 
verification and in-flight verification 
policy and procedures. The certificate 
holder must establish procedures to in-
dicate clearly who is going to initiate 
the verification action and what action 
is necessary. The verification action 
may be performed on an ETOPS rev-
enue flight provided the verification 
action is documented as satisfactorily 
completed upon reaching the ETOPS 
Entry Point. 

(e) 

Task identification. 

The certificate 

holder must identify all ETOPS-spe-
cific tasks. An appropriately trained 
mechanic who is ETOPS qualified must 
accomplish and certify by signature 
that the ETOPS-specific task has been 
completed. 

(f) 

Centralized maintenance control pro-

cedures. 

The certificate holder must de-

velop and maintain procedures for cen-
tralized maintenance control for 
ETOPS. 

(g) 

Parts control program. 

The certifi-

cate holder must develop an ETOPS 
parts control program to ensure the 
proper identification of parts used to 
maintain the configuration of airplanes 
used in ETOPS. 

(h) 

Reliability program. 

The certificate 

holder must have an ETOPS reliability 
program. This program must be the 
certificate holder’s existing reliability 
program or its Continuing Analysis 
and Surveillance System (CASS) sup-
plemented for ETOPS. This program 
must be event-oriented and include 
procedures to report the events listed 
below, as follows: 

(1) The certificate holder must report 

the following events within 96 hours of 
the occurrence to its responsible Flight 
Standards office: 

(i) IFSDs, except planned IFSDs per-

formed for flight training. 

(ii) Diversions and turnbacks for fail-

ures, malfunctions, or defects associ-
ated with any airplane or engine sys-
tem. 

(iii) Uncommanded power or thrust 

changes or surges. 

(iv) Inability to control the engine or 

obtain desired power or thrust. 

(v) Inadvertent fuel loss or unavail-

ability, or uncorrectable fuel imbal-
ance in flight. 

(vi) Failures, malfunctions or defects 

associated with ETOPS Significant 
Systems. 

(vii) Any event that would jeopardize 

the safe flight and landing of the air-
plane on an ETOPS flight. 

(2) The certificate holder must inves-

tigate the cause of each event listed in 
paragraph (h)(1) of this section and 
submit findings and a description of 
corrective action to its responsible 
Flight Standards office. The report 
must include the information specified 
in § 121.703(e). The corrective action 

background image

161 

Federal Aviation Administration, DOT 

§ 121.375 

must be acceptable to its responsible 
Flight Standards office. 

(i) 

Propulsion system monitoring. 

(1) If 

the IFSD rate (computed on a 12-month 
rolling average) for an engine installed 
as part of an airplane-engine combina-
tion exceeds the following values, the 
certificate holder must do a com-
prehensive review of its operations to 
identify any common cause effects and 
systemic errors. The IFSD rate must 
be computed using all engines of that 
type in the certificate holder’s entire 
fleet of airplanes approved for ETOPS. 

(i) A rate of 0.05 per 1,000 engine 

hours for ETOPS up to and including 
120 minutes. 

(ii) A rate of 0.03 per 1,000 engine 

hours for ETOPS beyond 120-minutes 
up to and including 207 minutes in the 
North Pacific Area of Operation and up 
to and including 180 minutes elsewhere. 

(iii) A rate of 0.02 per 1,000 engine 

hours for ETOPS beyond 207 minutes in 
the North Pacific Area of Operation 
and beyond 180 minutes elsewhere. 

(2) Within 30 days of exceeding the 

rates above, the certificate holder must 
submit a report of investigation and 
any necessary corrective action taken 
to its responsible Flight Standards of-
fice. 

(j) 

Engine condition monitoring. 

(1) The 

certificate holder must have an engine 
condition monitoring program to de-
tect deterioration at an early stage and 
to allow for corrective action before 
safe operation is affected. 

(2) This program must describe the 

parameters to be monitored, the meth-
od of data collection, the method of 
analyzing data, and the process for 
taking corrective action. 

(3) The program must ensure that en-

gine-limit margins are maintained so 
that a prolonged engine-inoperative di-
version may be conducted at approved 
power levels and in all expected envi-
ronmental conditions without exceed-
ing approved engine limits. This in-
cludes approved limits for items such 
as rotor speeds and exhaust gas tem-
peratures. 

(k) 

Oil-consumption monitoring. 

The 

certificate holder must have an engine 
oil consumption monitoring program 
to ensure that there is enough oil to 
complete each ETOPS flight. APU oil 
consumption must be included if an 

APU is required for ETOPS. The opera-
tor’s oil consumption limit may not ex-
ceed the manufacturer’s recommenda-
tion. Monitoring must be continuous 
and include oil added at each ETOPS 
departure point. The program must 
compare the amount of oil added at 
each ETOPS departure point with the 
running average consumption to iden-
tify sudden increases. 

(l) 

APU in-flight start program. 

If the 

airplane type certificate requires an 
APU but does not require the APU to 
run during the ETOPS portion of the 
flight, the certificate holder must de-
velop and maintain a program accept-
able to the FAA for cold soak in-flight 
start-and-run reliability. 

(m) 

Maintenance training. 

For each 

airplane-engine combination, the cer-
tificate holder must develop a mainte-
nance training program that provides 
training adequate to support ETOPS. 
It must include ETOPS specific train-
ing for all persons involved in ETOPS 
maintenance that focuses on the spe-
cial nature of ETOPS. This training 
must be in addition to the operator’s 
maintenance training program used to 
qualify individuals to perform work on 
specific airplanes and engines. 

(n) 

Configuration, maintenance, and 

procedures (CMP) document. 

If an air-

plane-engine combination has a CMP 
document, the certificate holder must 
use a system that ensures compliance 
with the applicable FAA-approved doc-
ument. 

(o) 

Procedural changes. 

Each substan-

tial change to the maintenance or 
training procedures that were used to 
qualify the certificate holder for 
ETOPS, must be submitted to the 
CHDO for review. The certificate hold-
er cannot implement a change until its 
responsible Flight Standards office no-
tifies the certificate holder that the re-
view is complete. 

[Doc. No. FAA–2002–6717, 72 FR 1880, Jan. 16, 
2007, as amended by Amdt. 121–329, 72 FR 
7348, Feb. 15, 2007; Amdt. 121–329, 72 FR 26541, 
May 10, 2007; Amdt. 121–339, 73 FR 33881, June 
16, 2008; Docket FAA–2018–0119, Amdt. 121– 
380, 83 FR 9173, Mar. 5, 2018] 

§ 121.375 Maintenance and preventive 

maintenance training program. 

Each certificate holder or person per-

forming maintenance or preventive 

background image

162 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.377 

maintenance functions for it shall have 
a training program to ensure that each 
person (including inspection personnel) 
who determines the adequacy of work 
done is fully informed about procedures 
and techniques and new equipment in 
use and is competent to perform his du-
ties. 

§ 121.377 Maintenance and preventive 

maintenance personnel duty time 

limitations. 

Within the United States, each cer-

tificate holder (or person performing 
maintenance or preventive mainte-
nance functions for it) shall relieve 
each person performing maintenance 
or preventive maintenance from duty 
for a period of at least 24 consecutive 
hours during any seven consecutive 
days, or the equivalent thereof within 
any one calendar month. 

§ 121.378 Certificate requirements. 

(a) Except for maintenance, preven-

tive maintenance, alterations, and re-
quired inspections performed by a cer-
tificated repair station that is located 
outside the United States, each person 
who is directly in charge of mainte-
nance, preventive maintenance, or al-
terations, and each person performing 
required inspections must hold an ap-
propriate airman certificate. 

(b) For the purposes of this section, a 

person 

directly in charge 

is each person 

assigned to a position in which he is re-
sponsible for the work of a shop or sta-
tion that performs maintenance, pre-
ventive maintenance, alterations, or 
other functions affecting aircraft air-
worthiness. A person who is 

directly in 

charge 

need not physically observe and 

direct each worker constantly but 
must be available for consultation and 
decision on matters requiring instruc-
tion or decision from higher authority 
than that of the persons performing 
the work. 

[Doc. No. 6258, 29 FR 19210, Dec. 31, 1964, as 
amended by Amdt. 121–21, 31 FR 10618, Aug. 9, 
1966; Amdt. 121–286, 66 FR 41116, Aug. 6, 2001] 

§ 121.379 Authority to perform and ap-

prove maintenance, preventive 

maintenance, and alterations. 

(a) A certificate holder may perform, 

or it may make arrangements with 
other persons to perform, maintenance, 

preventive maintenance, and alter-
ations as provided in its continuous 
airworthiness maintenance program 
and its maintenance manual. In addi-
tion, a certificate holder may perform 
these functions for another certificate 
holder as provided in the continuous 
airworthiness maintenance program 
and maintenance manual of the other 
certificate holder. 

(b) A certificate holder may approve 

any aircraft, airframe, aircraft engine, 
propeller, or appliance for return to 
service after maintenance, preventive 
maintenance, or alterations that are 
performed under paragraph (a) of this 
section. However, in the case of a 
major repair or major alteration, the 
work must have been done in accord-
ance with technical data approved by 
the Administrator. 

[Doc. No. 10289, 35 FR 16793, Oct. 30, 1970] 

§ 121.380 Maintenance recording re-

quirements. 

(a) Each certificate holder shall keep 

(using the system specified in the man-
ual required in § 121.369) the following 
records for the periods specified in 
paragraph (c) of this section: 

(1) All the records necessary to show 

that all requirements for the issuance 
of an airworthiness release under 
§ 121.709 have been met. 

(2) Records containing the following 

information: 

(i) The total time in service of the 

airframe. 

(ii) Except as provided in paragraph 

(b) of this section, the total time in 
service of each engine and propeller. 

(iii) The current status of life-limited 

parts of each airframe, engine, pro-
peller, and appliance. 

(iv) The time since last overhaul of 

all items installed on the aircraft 
which are required to be overhauled on 
a specified time basis. 

(v) The identification of the current 

inspection status of the aircraft, in-
cluding the times since the last inspec-
tions required by the inspection pro-
gram under which the aircraft and its 
appliances are maintained. 

(vi) The current status of applicable 

airworthiness directives, including the 
date and methods of compliance, and, 
if the airworthiness directive involves 

background image

163 

Federal Aviation Administration, DOT 

§ 121.383 

recurring action, the time and date 
when the next action is required. 

(vii) A list of current major alter-

ations to each airframe, engine, pro-
peller, and appliance. 

(b) A certificate holder need not 

record the total time in service of an 
engine or propeller on a transport cat-
egory cargo airplane, a transport cat-
egory airplane that has a passenger 
seat configuration of more than 30 
seats, or a nontransport category air-
plane type certificated before January 
1, 1958, until the following, whichever 
occurs first: 

(1) March 20, 1997; or 
(2) The date of the first overhaul of 

the engine or propeller, as applicable, 
after January 19, 1996. 

(c) Each certificate holder shall re-

tain the records required to be kept by 
this section for the following periods: 

(1) Except for the records of the last 

complete overhaul of each airframe, 
engine, propeller, and appliance, the 
records specified in paragraph (a)(1) of 
this section shall be retained until the 
work is repeated or superseded by 
other work or for one year after the 
work is performed. 

(2) The records of the last complete 

overhaul of each airframe, engine, pro-
peller, and appliance shall be retained 
until the work is superseded by work of 
equivalent scope and detail. 

(3) The records specified in paragraph 

(a)(2) of this section shall be retained 
and transferred with the aircraft at the 
time the aircraft is sold. 

(d) The certificate holder shall make 

all maintenance records required to be 
kept by this section available for in-
spection by the Administrator or any 
authorized representative of the Na-
tional Transportation Safety Board 
(NTSB). 

[Doc. No. 10658, 37 FR 15983, Aug. 9, 1972, as 
amended by Amdt. 121–251, 60 FR 65933, Dec. 
20, 1995; Amdt. 121–321, 71 FR 536, Jan. 4, 2006] 

§ 121.380a Transfer of maintenance 

records. 

Each certificate holder who sells a 

U.S. registered aircraft shall transfer 
to the purchaser, at the time of sale, 
the following records of that aircraft, 
in plain language form or in coded form 
at the election of the purchaser, if the 
coded form provides for the preserva-

tion and retrieval of information in a 
manner acceptable to the Adminis-
trator: 

(a) The record specified in 

§ 121.380(a)(2). 

(b) The records specified in 

§ 121.380(a)(1) which are not included in 
the records covered by paragraph (a) of 
this section, except that the purchaser 
may permit the seller to keep physical 
custody of such records. However, cus-
tody of records in the seller does not 
relieve the purchaser of his responsi-
bility under § 121.380(c) to make the 
records available for inspection by the 
Administrator or any authorized rep-
resentative of the National Transpor-
tation Safety Board (NTSB). 

[Doc. No. 10658, 37 FR 15984, Aug. 9, 1972] 

Subpart M—Airman and 

Crewmember Requirements 

S

OURCE

: Docket No. 6258, 29 FR 19212, Dec. 

31, 1964, unless otherwise noted. 

§ 121.381 Applicability. 

This subpart prescribes airman and 

crewmember requirements for all cer-
tificate holders. 

§ 121.383 Airman: Limitations on use of 

services. 

(a) No certificate holder may use any 

person as an airman nor may any per-
son serve as an airman unless that per-
son— 

(1) Holds an appropriate current air-

man certificate issued by the FAA; 

(2) Has in his or her possession while 

engaged in operations under this part— 

(i) Any required appropriate current 

airman and medical certificates; or 

(ii) A temporary document issued in 

accordance with paragraph (c) of this 
section; and 

(3) Is otherwise qualified for the oper-

ation for which he is to be used. 

(b) Each airman covered by para-

graph (a)(2) of this section shall 
present his or her certificates or tem-
porary document for inspection upon 
request of the Administrator. 

(c) A certificate holder may obtain 

approval to provide a temporary docu-
ment verifying a flightcrew member’s 

background image

164 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.385 

airman certificate and medical certifi-
cate privileges under an approved cer-
tificate verification plan set forth in 
the certificate holder’s operations 
specifications. A document provided by 
the certificate holder may be carried as 
an airman certificate or medical cer-
tificate on flights within the United 
States for up to 72 hours. 

(d) No certificate holder may use the 

services of any person as a pilot on an 
airplane engaged in operations under 
this part if that person has reached his 
or her 65th birthday. 

(e) No pilot may serve as a pilot in 

operations under this part if that per-
son has reached his or her 65th birth-
day. 

[Doc. No. 6258, 29 FR 19212, Dec. 31, 1964, as 
amended by Amdt. 121–144, 43 FR 22646, May 
25, 1978; Amdt. 121–344, 74 FR 34234, July 15, 
2009; Amdt. 121–372, 80 FR 33401, June 12, 2015; 
Amdt. 121–381, 83 FR 30282, June 27, 2018] 

§ 121.385 Composition of flight crew. 

(a) No certificate holder may operate 

an airplane with less than the min-
imum flight crew in the airworthiness 
certificate or the airplane Flight Man-
ual approved for that type airplane and 
required by this part for the kind of op-
eration being conducted. 

(b) In any case in which this part re-

quires the performance of two or more 
functions for which an airman certifi-
cate is necessary, that requirement is 
not satisfied by the performance of 
multiple functions at the same time by 
one airman. 

(c) The minimum pilot crew is two 

pilots and the certificate holder shall 
designate one pilot as pilot in com-
mand and the other second in com-
mand. 

(d) On each flight requiring a flight 

engineer at least one flight crew-
member, other than the flight engi-
neer, must be qualified to provide 
emergency performance of the flight 
engineer’s functions for the safe com-
pletion of the flight if the flight engi-
neer becomes ill or is otherwise inca-
pacitated. A pilot need not hold a 
flight engineer’s certificate to perform 

the flight engineer’s functions in such 
a situation. 

[Doc. No. 6258, 29 FR 19212, Dec. 31, 1964, as 
amended by Amdt. 121–178, 47 FR 13316, Mar. 
29, 1982; Amdt. 121–256, 61 FR 30434, June 14, 
1996] 

§ 121.387 Flight engineer. 

No certificate holder may operate an 

airplane for which a type certificate 
was issued before January 2, 1964, hav-
ing a maximum certificated takeoff 
weight of more than 80,000 pounds with-
out a flight crewmember holding a cur-
rent flight engineer certificate. For 
each airplane type certificated after 
January 1, 1964, the requirement for a 
flight engineer is determined under the 
type certification requirements of 
§ 25.1523. 

[Doc. No. 5025, 30 FR 6067, Apr. 29, 1965] 

§ 121.389 Flight navigator and special-

ized navigation equipment. 

(a) No certificate holder may operate 

an airplane outside the 48 contiguous 
States and the District of Columbia, 
when its position cannot be reliably 
fixed for a period of more than 1 hour, 
without— 

(1) A flight crewmember who holds a 

current flight navigator certificate; or 

(2) Specialized means of navigation 

approved in accordance with § 121.355 
which enables a reliable determination 
to be made of the position of the air-
plane by each pilot seated at his duty 
station. 

(b) Notwithstanding paragraph (a) of 

this section, the Administrator may 
also require a flight navigator or spe-
cial navigation equipment, or both, 
when specialized means of navigation 
are necessary for 1 hour or less. In 
making this determination, the Admin-
istrator considers— 

(1) The speed of the airplane; 
(2) Normal weather conditions en 

route; 

(3) Extent of air traffic control; 
(4) Traffic congestion; 
(5) Area of navigational radio cov-

erage at destination; 

(6) Fuel requirements; 
(7) Fuel available for return to point 

of departure or alternates; 

(8) Predication of flight upon oper-

ation beyond the point of no return; 
and 

background image

165 

Federal Aviation Administration, DOT 

§ 121.393 

(9) Any other factors he determines 

are relevant in the interest of safety. 

(c) Operations where a flight navi-

gator or special navigation equipment, 
or both, are required are specified in 
the operations specifications of the air 
carrier or commercial operator. 

[Doc. No. 10204, 37 FR 6464, Mar. 30, 1972, as 
amended by Amdt. 121–178, 47 FR 13316, Mar. 
29, 1982] 

§ 121.391 Flight attendants. 

(a) Except as specified in § 121.393 and 

§ 121.394, each certificate holder must 
provide at least the following flight at-
tendants on board each passenger-car-
rying airplane when passengers are on 
board: 

(1) For airplanes having a maximum 

payload capacity of more than 7,500 
pounds and having a seating capacity 
of more than 9 but less than 51 pas-
sengers—one flight attendant. 

(2) For airplanes having a maximum 

payload capacity of 7,500 pounds or less 
and having a seating capacity of more 
than 19 but less than 51 passengers— 
one flight attendant. 

(3) For airplanes having a seating ca-

pacity of more than 50 but less than 101 
passengers—two flight attendants. 

(4) For airplanes having a seating ca-

pacity of more than 100 passengers— 
two flight attendants plus one addi-
tional flight attendant for each unit 
(or part of a unit) of 50 passenger seats 
above a seating capacity of 100 pas-
sengers. 

(b) If, in conducting the emergency 

evacuation demonstration required 
under § 121.291 (a) or (b), the certificate 
holder used more flight attendants 
than is required under paragraph (a) of 
this section for the maximum seating 
capacity of the airplane used in the 
demonstration, he may not, thereafter, 
take off that airplane— 

(1) In its maximum seating capacity 

configuration with fewer flight attend-
ants than the number used during the 
emergency evacuation demonstration; 
or 

(2) In any reduced seating capacity 

configuration with fewer flight attend-
ants than the number required by para-
graph (a) of this section for that seat-
ing capacity plus the number of flight 
attendants used during the emergency 
evacuation demonstration that were in 

excess of those required under para-
graph (a) of this section. 

(c) The number of flight attendants 

approved under paragraphs (a) and (b) 
of this section are set forth in the cer-
tificate holder’s operations specifica-
tions. 

(d) During takeoff and landing, flight 

attendants required by this section 
shall be located as near as practicable 
to required floor level exits and shall 
be uniformly distributed throughout 
the airplane in order to provide the 
most effective egress of passengers in 
event of an emergency evacuation. 
During taxi, flight attendants required 
by this section must remain at their 
duty stations with safety belts and 
shoulder harnesses fastened except to 
perform duties related to the safety of 
the airplane and its occupants. 

[Doc. No. 2033, 30 FR 3206, Mar. 9, 1965] 

E

DITORIAL

N

OTE

: For F

EDERAL

R

EGISTER

ci-

tations affecting § 121.391, see the List of CFR 
Sections Affected, which appears in the 
Finding Aids section of the printed volume 
and at 

www.govinfo.gov. 

§ 121.392 Personnel identified as flight 

attendants. 

(a) Any person identified by the cer-

tificate holder as a flight attendant on 
an aircraft in operations under this 
part must be trained and qualified in 
accordance with subparts N and O of 
this part. This includes: 

(1) Flight attendants provided by the 

certificate holder in excess of the num-
ber required by § 121.391(a); and 

(2) Flight attendants provided by the 

certificate holder when flight attend-
ants are not required by § 121.391(a). 

(b) A qualifying flight attendant who 

is receiving operating experience on an 
aircraft in operations under subpart O 
of this part must be identified to pas-
sengers as a qualifying flight attend-
ant. 

[Doc. No. FAA–2008–0677, 78 FR 67836, Nov. 12, 
2013] 

§ 121.393 Crewmember requirements 

at stops where passengers remain 

on board. 

At stops where passengers remain on 

board, the certificate holder must meet 
the following requirements: 

(a) On each airplane for which a 

flight attendant is not required by 

background image

166 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.394 

§ 121.391(a), the certificate holder must 
ensure that a person who is qualified in 
the emergency evacuation procedures 
for the airplane, as required in § 121.417, 
and who is identified to the passengers, 
remains: 

(1) On board the airplane; or 
(2) Nearby the airplane, in a position 

to adequately monitor passenger safe-
ty, and: 

(i) The airplane engines are shut 

down; and 

(ii) At least one floor level exit re-

mains open to provide for the 
deplaning of passengers. 

(b) On each airplane for which flight 

attendants are required by § 121.391(a), 
but the number of flight attendants re-
maining on board is fewer than re-
quired by § 121.391(a), the certificate 
holder must meet the following re-
quirements: 

(1) The certificate holder shall ensure 

that: 

(i) The airplane engines are shut 

down; 

(ii) At least one floor level exit re-

mains open to provide for the 
deplaning of passengers; and 

(iii) the number of flight attendants 

on board is at least half the number re-
quired by § 121.391(a), rounded down to 
the next lower number in the case of 
fractions, but never fewer than one. 

(2) The certificate holder may sub-

stitute for the required flight attend-
ants other persons qualified in the 
emergency evacuation procedures for 
that aircraft as required in § 121.417, if 
these persons are identified to the pas-
sengers. 

(3) If only one flight attendant or 

other qualified person is on board dur-
ing a stop, that flight attendant or 
other qualified person shall be located 
in accordance with the certificate hold-
er’s FAA-approved operating proce-
dures. If more than one flight attend-
ant or other qualified person is on 
board, the flight attendants or other 
qualified persons shall be spaced 
throughout the cabin to provide the 
most effective assistance for the evacu-
ation in case of an emergency. 

[Doc. No. 28154, 60 FR 65934, Dec. 20, 1995] 

§ 121.394 Flight attendant require-

ments during passenger boarding 

and deplaning. 

(a) During passenger boarding, on 

each airplane for which more than one 
flight attendant is required by § 121.391, 
the certificate holder may: 

(1) Reduce the number of required 

flight attendants by one, provided that: 

(i) The flight attendant that leaves 

the aircraft remains within the imme-
diate vicinity of the door through 
which passengers are boarding; 

(ii) The flight attendant that leaves 

the aircraft only conducts safety duties 
related to the flight being boarded; 

(iii) The airplane engines are shut 

down; and 

(iv) At least one floor level exit re-

mains open to provide for passenger 
egress; or 

(2) Substitute a pilot or flight engi-

neer employed by the certificate holder 
and trained and qualified on that type 
airplane for one flight attendant, pro-
vided the certificate holder— 

(i) Describes in the manual required 

by § 121.133: 

(A) The necessary functions to be 

performed by the substitute pilot or 
flight engineer in an emergency, to in-
clude a situation requiring an emer-
gency evacuation. The certificate hold-
er must show those functions are real-
istic, can be practically accomplished, 
and will meet any reasonably antici-
pated emergency; and 

(B) How other regulatory functions 

performed by a flight attendant will be 
accomplished by the substitute pilot or 
flight engineer on the airplane. 

(ii) Ensures that the following re-

quirements are met: 

(A) The substitute pilot or flight en-

gineer is not assigned to operate the 
flight for which that person is sub-
stituting for a required flight attend-
ant. 

(B) The substitute pilot or flight en-

gineer is trained in all assigned flight 
attendant duties regarding passenger 
handling. 

(C) The substitute pilot or flight en-

gineer meets the emergency training 
requirements for flight attendants in 
evacuation management and evacu-
ation commands, as appropriate, and 
frequency of performance drills regard-
ing operation of exits in the normal 

background image

167 

Federal Aviation Administration, DOT 

§ 121.400 

and emergency modes on that type air-
craft. 

(D) The substitute pilot or flight en-

gineer is in possession of all items re-
quired for duty. 

(E) The substitute pilot or flight en-

gineer is located in the passenger 
cabin. 

(F) The substitute pilot or flight en-

gineer is identified to the passengers. 

(G) The substitution of a pilot or 

flight engineer for a required flight at-
tendant does not interfere with the 
safe operation of the flight. 

(H) The airplane engines are shut 

down. 

(I) At least one floor-level exit re-

mains open to provide for passenger 
egress. 

(b) During passenger deplaning, on 

each airplane for which more than one 
flight attendant is required by § 121.391, 
the certificate holder may reduce the 
number of flight attendants required 
by that paragraph provided: 

(1) The airplane engines are shut 

down; 

(2) At least one floor level exit re-

mains open to provide for passenger 
egress; and 

(3) The number of flight attendants 

on board is at least half the number re-
quired by § 121.391, rounded down to the 
next lower number in the case of frac-
tions, but never fewer than one. 

(c) If only one flight attendant is on 

the airplane during passenger boarding 
or deplaning, that flight attendant 
must be located in accordance with the 
certificate holder’s FAA-approved op-
erating procedures. If more than one 
flight attendant is on the airplane dur-
ing passenger boarding or deplaning, 
the flight attendants must be evenly 
distributed throughout the airplane 
cabin, in the vicinity of the floor-level 
exits, to provide the most effective as-
sistance in the event of an emergency. 

(d) The time spent by any crew-

member conducting passenger boarding 
or deplaning duties is considered duty 
time. 

[Doc. No. FAA–2009–0022, 75 FR 68198, Nov. 5, 
2010] 

§ 121.395 Aircraft dispatcher: Domestic 

and flag operations. 

Each certificate holder conducting 

domestic or flag operations shall pro-

vide enough qualified aircraft dis-
patchers at each dispatch center to en-
sure proper operational control of each 
flight. 

[Doc. No. 28154, 61 FR 2611, Jan. 26, 1996] 

§ 121.397 Emergency and emergency 

evacuation duties. 

(a) Each certificate holder shall, for 

each type and model of airplane, as-
signed to each category of required 
crewmember, as appropriate, the nec-
essary functions to be performed in an 
emergency or a situation requiring 
emergency evacuation. The certificate 
holder shall show those functions are 
realistic, can be practically accom-
plished, and will meet any reasonably 
anticipated emergency including the 
possible incapacitation of individual 
crewmembers or their inability to 
reach the passenger cabin because of 
shifting cargo in combination cargo- 
passenger airplanes. 

(b) The certificate holder shall de-

scribe in its manual the functions of 
each category of required crew-
members under paragraph (a) of this 
section. 

[Doc. No. 2033, 30 FR 3206, Mar. 9, 1965, as 
amended by Amdt. 121–7, 30 FR 6727, May 18, 
1965] 

Subpart N—Training Program 

S

OURCE

: Docket No. 9509, 35 FR 90, Jan. 3, 

1970, unless otherwise noted. 

§ 121.400 Applicability and terms used. 

(a) This subpart prescribes the re-

quirements applicable to each certifi-
cate holder for establishing and main-
taining a training program for crew-
members, aircraft dispatchers, and 
other operations personnel, and for the 
approval and use of flight simulation 
training devices and training equip-
ment in the conduct of the program. 

(b) For the purpose of this subpart, 

airplane groups are as follows: 

(1) 

Group I. 

Propeller driven, includ-

ing— 

(i) Reciprocating powered; and 
(ii) Turbopropeller powered. 
(2) 

Group II. 

Turbojet powered. 

(c) For the purpose of this subpart, 

the following terms and definitions 
apply: 

background image

168 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.401 

(1) 

Initial training. 

The training re-

quired for crewmembers and dis-
patchers who have not qualified and 
served in the same capacity on another 
airplane of the same group. 

(2) 

Transition training. 

The training 

required for crewmembers and dis-
patchers who have qualified and served 
in the same capacity on another air-
plane of the same group. 

(3) 

Upgrade training. 

The training re-

quired for flightcrew members who 
have qualified and served as second in 
command on a particular airplane 
type, before they serve as pilot in com-
mand on that airplane. 

(4) 

Conversion training. 

The training 

required for flightcrew members who 
have qualified and served as flight en-
gineer on a particular airplane type, 
before they serve as second in com-
mand on that airplane. 

(5) 

Differences training. 

The training 

required for crewmembers and dis-
patchers who have qualified and served 
on a particular type airplane, when the 
Administrator finds differences train-
ing is necessary before a crewmember 
serves in the same capacity on a par-
ticular variation of that airplane. 

(6) 

Programmed hours. 

The hours of 

training prescribed in this subpart 
which may be reduced by the Adminis-
trator upon a showing by the certifi-
cate holder that circumstances justify 
a lesser amount. 

(7) 

Inflight. 

Refers to maneuvers, pro-

cedures, or functions that must be con-
ducted in the airplane. 

(8) 

Training center. 

An organization 

governed by the applicable require-
ments of part 142 of this chapter that 
provides training, testing, and check-
ing under contract or other arrange-
ment to certificate holders subject to 
the requirements of this part. 

(9) 

Requalification training. 

The train-

ing required for crewmembers pre-
viously trained and qualified, but who 
have become unqualified due to not 
having met within the required period 
the recurrent training requirements of 
§ 121.427 or the proficiency check re-
quirements of § 121.441. 

(10) 

Related aircraft. 

Any two or more 

aircraft of the same make with either 
the same or different type certificates 
that have been demonstrated and de-
termined by the Administrator to have 

commonality to the extent that credit 
between those aircraft may be applied 
for flightcrew member training, check-
ing, recent experience, operating expe-
rience, operating cycles, and line oper-
ating flight time for consolidation of 
knowledge and skills. 

(11) 

Related aircraft differences train-

ing. 

The flightcrew member training 

required for aircraft with different type 
certificates that have been designated 
as related by the Administrator. 

(12) 

Base aircraft. 

An aircraft identi-

fied by a certificate holder for use as a 
reference to compare differences with 
another aircraft. 

[Doc. No. 9509, 35 FR 90, Jan. 3, 1970; 35 FR 
2819, Feb. 11, 1970, as amended by Amdt. 121– 
104, 38 FR 14915, June 7, 1973; Amdt. 121–259, 
61 FR 34560, July 2, 1996; Amdt. 121–366, 78 FR 
67836, Nov. 12, 2013; Amdt. 121–382, 85 FR 
10921, Feb. 25, 2020] 

§ 121.401 Training program: General. 

(a) Each certificate holder shall: 
(1) Establish and implement a train-

ing program that satisfies the require-
ments of this subpart and appendices E 
and F of this part and that ensures 
that each crewmember, aircraft dis-
patcher, flight instructor and check 
airman is adequately trained to per-
form his or her assigned duties. Prior 
to implementation, the certificate 
holder must obtain initial and final 
FAA approval of the training program. 

(2) Provide adequate ground and 

flight training facilities and properly 
qualified ground instructors for the 
training required by this subpart; 

(3) Provide and keep current with re-

spect to each airplane type and, if ap-
plicable, the particular variations 
within that airplane type, appropriate 
training material, examinations, 
forms, instructions, and procedures for 
use in conducting the training and 
checks required by this part; and 

(4) Provide enough flight instructors 

and approved check airmen to conduct 
the flight training and checks required 
under this part. 

(b) Whenever a crewmember or air-

craft dispatcher who is required to 
take recurrent training, a flight check, 
or a competence check, takes the 
check or completes the training in the 
calendar month before or after the cal-
endar month in which that training or 

background image

169 

Federal Aviation Administration, DOT 

§ 121.403 

check is required, he is considered to 
have taken or completed it in the cal-
endar month in which it was required. 

(c) Each instructor, supervisor, or 

check airman who is responsible for a 
particular ground training subject, seg-
ment of flight training, course of train-
ing, flight check, or competence check 
under this part shall certify as to the 
proficiency and knowledge of the crew-
member, aircraft dispatcher, flight in-
structor, or check airman concerned 
upon completion of that training or 
check. That certification shall be made 
a part of the crewmember’s or dis-
patcher’s record. When the certifi-
cation required by this paragraph is 
made by an entry in a computerized 
recordkeeping system, the certifying 
instructor, supervisor, or check airman 
must be identified with that entry. 
However, the signature of the certi-
fying instructor, supervisor, or check 
airman is not required for computer-
ized entries. 

(d) Training subjects that are appli-

cable to more than one airplane or 
crewmember position and that have 
been satisfactorily completed in con-
nection with prior training for another 
airplane or another crewmember posi-
tion, need not be repeated during sub-
sequent training other than recurrent 
training. 

(e) A person who progresses success-

fully through flight training, is rec-
ommended by his instructor or a check 
airman, and successfully completes the 
appropriate flight check for a check 
airman or the Administrator, need not 
complete the programmed hours of 
flight training for the particular air-
plane. However, whenever the Adminis-
trator finds that 20 percent of the 
flight checks given at a particular 
training base during the previous 6 
months under this paragraph are un-
successful, this paragraph may not be 
used by the certificate holder at that 
base until the Administrator finds that 
the effectiveness of the flight training 
there has improved. 

In the case of a certificate holder using 
a course of training permitted in 
§ 121.409(c), the Administrator may re-
quire the programmed hours of inflight 
training in whole or in part, until he 
finds the effectiveness of the flight 

training has improved as provided in 
paragraph (e) of this section. 

[Doc. No. 9509, 35 FR 90, Jan. 3, 1970, as 
amended by Amdt. 121–104, 38 FR 14915, June 
7, 1973; Amdt. 121–108, 38 FR 35446, Dec. 28, 
1973; Amdt. 121–143, 43 FR 22642, May 25, 1978; 
Amdt. 121–316, 70 FR 58823, Oct. 7, 2005; Amdt. 
121–382, 85 FR 10921, Feb. 25, 2020] 

§ 121.402 Training program: Special 

rules. 

(a) Other than the certificate holder, 

only another certificate holder certifi-
cated under this part or a flight train-
ing center certificated under part 142 of 
this chapter is eligible under this sub-
part to provide flight training, testing, 
and checking under contract or other 
arrangement to those persons subject 
to the requirements of this subpart. 

(b) A certificate holder may contract 

with, or otherwise arrange to use the 
services of, a training center certifi-
cated under part 142 of this chapter to 
provide training, testing, and checking 
required by this part only if the train-
ing center— 

(1) Holds applicable training speci-

fications issued under part 142 of this 
chapter; 

(2) Has facilities, training equipment, 

and courseware meeting the applicable 
requirements of part 142 of this chap-
ter; 

(3) Has approved curriculums, cur-

riculum segments, and portions of cur-
riculum segments applicable for use in 
training courses required by this sub-
part; and 

(4) Has sufficient instructor and 

check airmen qualified under the appli-
cable requirements of §§ 121.411 or 
121.413 to provide training, testing, and 
checking to persons subject to the re-
quirements of this subpart. 

[Doc. No. 26933, 61 FR 34560, July 2, 1996, as 
amended by Amdt. 121–263, 62 FR 13791, Mar. 
21, 1997] 

§ 121.403 Training program: Cur-

riculum. 

(a) Each certificate holder must pre-

pare and keep current a written train-
ing program curriculum for each type 
of airplane with respect to dispatchers 
and each crewmember required for that 
type airplane. The curriculum must in-
clude ground and flight training re-
quired by this subpart. 

background image

170 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.404 

(b) Each training program cur-

riculum must include: 

(1) A list of principal ground training 

subjects, including emergency training 
subjects, that are provided. 

(2) A list of all the training device 

mockups, systems trainers, procedures 
trainers, or other training aids that 
the certificate holder will use. No later 
than March 12, 2019, a list of all the 
training equipment approved under 
§ 121.408 as well as other training aids 
that the certificate holder will use. 

(3) Detailed descriptions or pictorial 

displays of the approved normal, abnor-
mal, and emergency maneuvers, proce-
dures and functions that will be per-
formed during each flight training 
phase or flight check, indicating those 
maneuvers, procedures and functions 
that are to be performed during the 
inflight portions of flight training and 
flight checks. 

(4) A list of FSTDs approved under 

§ 121.407, including approvals for par-
ticular maneuvers, procedures, or func-
tions. 

(5) The programmed hours of training 

that will be applied to each phase of 
training. 

(6) A copy of each statement issued 

by the Administrator under § 121.405(d) 
for reduction of programmed hours of 
training. 

[Doc. No. 9509, 35 FR 90, Jan. 3, 1970, as 
amended by Amdt. 121–366, 78 FR 67836, Nov. 
12, 2013; Amdt. 121–382, 85 FR 10921, Feb. 25, 
2020] 

§ 121.404 Compliance dates: Crew and 

dispatcher resource management 

training. 

After March 19, 1998, no certificate 

holder may use a person as a flight 
crewmember, and after March 19, 1999, 
no certificate holder may use a person 
as a flight attendant or aircraft dis-
patcher unless that person has com-
pleted approved crew resource manage-
ment (CRM) or dispatcher resource 
management (DRM) initial training, as 
applicable, with that certificate holder 
or with another certificate holder. 

[Doc. No. 28154, 61 FR 30435, June 14, 1996] 

§ 121.405 Training program and revi-

sion: Initial and final approval. 

(a) To obtain initial and final ap-

proval of a training program, or a revi-

sion to an approved training program, 
each certificate holder must submit to 
the Administrator— 

(1) An outline of the proposed pro-

gram or revision, including an outline 
of the proposed or revised curriculum, 
that provides enough information for a 
preliminary evaluation of the proposed 
training program or revised training 
program; and 

(2) Additional relevant information 

as may be requested by the Adminis-
trator. 

(b) If the proposed training program 

or revision complies with this subpart 
the Administrator grants initial ap-
proval in writing after which the cer-
tificate holder may conduct the train-
ing in accordance with that program. 
The Administrator then evaluates the 
effectiveness of the training program 
and advises the certificate holder of de-
ficiencies, if any, that must be cor-
rected. 

(c) The Administrator grants final 

approval of the training program or re-
vision if the certificate holder shows 
that the training conducted under the 
initial approval set forth in paragraph 
(b) of this section ensures that each 
person that successfully completes the 
training is adequately trained to per-
form his assigned duties. 

(d) In granting initial and final ap-

proval of training programs or revi-
sions, including reductions in pro-
grammed hours specified in this sub-
part, the Administrator considers the 
training aids, devices, methods, and 
procedures listed in the certificate 
holder’s curriculum as set forth in 
§ 121.403 that increase the quality and 
effectiveness of the teaching-learning 
process. 

If approval of reduced programmed 
hours of training is granted, the Ad-
ministrator provides the certificate 
holder with a statement of the basis for 
the approval. 

(e) Whenever the Administrator finds 

that revisions are necessary for the 
continued adequacy of a training pro-
gram that has been granted final ap-
proval, the certificate holder shall, 
after notification by the Adminis-
trator, make any changes in the pro-
gram that are found necessary by the 
Administrator. Within 30 days after the 
certificate holder receives such notice, 

background image

171 

Federal Aviation Administration, DOT 

§ 121.407 

it may file a petition to reconsider the 
notice with the responsible Flight 
Standards office. The filing of a peti-
tion to reconsider stays the notice 
pending a decision by the Adminis-
trator. However, if the Administrator 
finds that there is an emergency that 
requires immediate action in the inter-
est of safety in air transportation, he 
may, upon a statement of the reasons, 
require a change effective without 
stay. 

(f) Each certificate holder described 

in § 135.3 (b) and (c) of this chapter 
must include the material required by 
§ 121.403 in the manual required by 
§ 135.21 of this chapter. 

(g) The Administrator may grant a 

deviation to certificate holders de-
scribed in § 135.3 (b) and (c) of this chap-
ter to allow reduced programmed hours 
of ground training required by § 121.419 
if it is found that a reduction is war-
ranted based on the certificate holder’s 
operations and the complexity of the 
make, model, and series of the aircraft 
used. 

[Doc. No. 9509, 35 FR 90, Jan. 3, 1970, as 
amended by Amdt. 121–207, 54 FR 39293, Sept. 
25, 1989; Amdt. 121–250, 60 FR 65948, Dec. 20, 
1995; Amdt. 121–253, 61 FR 2612, Jan. 26, 1996; 
Docket FAA–2018–0119, Amdt. 121–380, 83 FR 
9172, Mar. 5, 2018] 

§ 121.406 Credit for previous CRM/ 

DRM training. 

(a) For flightcrew members, the Ad-

ministrator may credit CRM training 
received before March 19, 1998 toward 
all or part of the initial ground CRM 
training required by § 121.419. 

(b) For flight attendants, the Admin-

istrator may credit CRM training re-
ceived before March 19, 1999 toward all 
or part of the initial ground CRM 
training required by § 121.421. 

(c) For aircraft dispatchers, the Ad-

ministrator may credit CRM training 
received before March 19, 1999 toward 
all or part of the initial ground CRM 
training required by § 121.422. 

(d) In granting credit for initial 

ground CRM or DRM training, the Ad-
ministrator considers training aids, de-
vices, methods, and procedures used by 
the certificate holder in a voluntary 
CRM or DRM program or in an AQP 
program that effectively meets the 
quality of an approved CRM or DRM 

initial ground training program under 
section 121.419, 121.421, or 121.422 as ap-
propriate. 

[Doc. No. 27993, 60 FR 65949, Dec. 20, 1995] 

§ 121.407 Training program: Approval 

of flight simulation training de-

vices. 

(a) Each FSTD used to satisfy a 

training requirement of this part in an 
approved training program, must meet 
all of the following requirements: 

(1) Be specifically approved by the 

Administrator for— 

(i) Use in the certificate holder’s ap-

proved training program; 

(ii) The type airplane and, if applica-

ble, the particular variation within 
type, for which the training or check is 
being conducted; and 

(iii) The particular maneuver, proce-

dure, or flightcrew member function 
involved. 

(2) Maintain the performance, func-

tion, and other characteristics that are 
required for qualification in accord-
ance with part 60 of this chapter or a 
previously qualified device, as per-
mitted in accordance with § 60.17 of this 
chapter. 

(3) Be modified in accordance with 

part 60 of this chapter to conform with 
any modification to the airplane being 
simulated that results in changes to 
performance, function, or other charac-
teristics required for qualification. 

(4) Be given a daily functional pre-

flight check before being used. 

(5) Have a daily discrepancy log kept 

with each discrepancy entered in that 
log by the appropriate instructor or 
check airman at the end of each train-
ing or check flight. 

(b) A particular FSTD may be ap-

proved for use by more than one cer-
tificate holder. 

(c) A Level B or higher FFS may be 

used instead of the airplane to satisfy 
the inflight requirements of §§ 121.439 
and 121.441 and appendices E and F of 
this part, if the FFS— 

(1) Is approved under this section and 

meets the appropriate FFS require-
ments of appendix H of this part; and 

(2) Is used as part of an approved pro-

gram that meets the training require-
ments of §§ 121.424 (a) and (c), 121.426, 
and appendix H of this part. 

background image

172 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.408 

(d) An FFS approved under this sec-

tion must be used instead of the air-
plane to satisfy the pilot flight train-
ing requirements prescribed in the cer-
tificate holder’s approved low-altitude 
windshear flight training program set 
forth in § 121.409(d) of this part. 

(e) An FFS approved under this sec-

tion must be used instead of the air-
plane to satisfy the pilot flight train-
ing requirements prescribed in the ex-
tended envelope training set forth in 
§ 121.423 of this part. Compliance with 
this paragraph is required no later 
than March 12, 2019. 

[Doc. No. 9509, 35 FR 90, Jan. 3, 1970, as 
amended by Amdt. 121–161, 45 FR 44183, June 
30, 1980; Amdt. 121–199, 53 FR 37696, Sept. 27, 
1988; Amdt. 121–366, 78 FR 67836, Nov. 12, 2013; 
Amdt. 121–382, 85 FR 10921, Feb. 25, 2020] 

§ 121.408 Training equipment other 

than flight simulation training de-

vices. 

(a) The Administrator must approve 

training equipment used in a training 
program approved under this part and 
that functionally replicates aircraft 
equipment for the certificate holder 
and the crewmember duty or proce-
dure. Training equipment does not in-
clude FSTDs qualified under part 60 of 
this chapter. 

(b) The certificate holder must dem-

onstrate that the training equipment 
described in paragraph (a) of this sec-
tion, used to meet the training require-
ments of this subpart, meets all of the 
following: 

(1) The form, fit, function, and 

weight, as appropriate, of the aircraft 
equipment. 

(2) Replicates the normal operation 

(and abnormal and emergency oper-
ation, if appropriate) of the aircraft 
equipment including the following: 

(i) The required force, actions and 

travel of the aircraft equipment. 

(ii) Variations in aircraft equipment 

operated by the certificate holder, if 
applicable. 

(3) Replicates the operation of the 

aircraft equipment under adverse con-
ditions, if appropriate. 

(c) Training equipment must be 

modified to ensure that it maintains 
the performance and function of the 
aircraft type or aircraft equipment rep-
licated. 

(d) All training equipment must have 

a record of discrepancies. The docu-
menting system must be readily avail-
able for review by each instructor, 
check airman or supervisor, prior to 
conducting training or checking with 
that equipment. 

(1) Each instructor, check airman or 

supervisor conducting training or 
checking, and each person conducting 
an inspection of the equipment who 
discovers a discrepancy, including any 
missing, malfunctioning or inoperative 
components, must record a description 
of that discrepancy and the date that 
the discrepancy was identified. 

(2) All corrections to discrepancies 

must be recorded when the corrections 
are made. This record must include the 
date of the correction. 

(3) A record of a discrepancy must be 

maintained for at least 60 days. 

(e) No person may use, allow the use 

of, or offer the use of training equip-
ment with a missing, malfunctioning, 
or inoperative component to meet the 
crewmember training or checking re-
quirements of this chapter for tasks 
that require the use of the correctly 
operating component. 

(f) Compliance with this section is re-

quired no later than March 12, 2019. 

[Doc. No. FAA–2008–0677, 78 FR 67837, Nov. 12, 
2013] 

§ 121.409 Training courses using flight 

simulation training devices. 

(a) Training courses utilizing FSTDs 

may be included in the certificate hold-
er’s approved training program for use 
as provided in this section. 

(b) Except for the airline transport 

pilot certification training program ap-
proved to satisfy the requirements of 
§ 61.156 of this chapter, a course of 
training in an FFS may be included for 
use as provided in § 121.441 if that 
course— 

(1) Provides at least 4 hours of train-

ing at the pilot controls of an FFS as 
well as a proper briefing before and 
after the training. 

(2) Provides training in at least the 

following: 

(i) The procedures and maneuvers set 

forth in appendix F to this part; or 

(ii) Line-oriented flight training 

(LOFT) that— 

(A) Before March 12, 2019, 

background image

173 

Federal Aviation Administration, DOT 

§ 121.410 

(

1

) Utilizes a complete flight crew; 

(

2

) Includes at least the maneuvers 

and procedures (abnormal and emer-
gency) that may be expected in line op-
erations; and 

(

3

) Is representative of the flight seg-

ment appropriate to the operations 
being conducted by the certificate 
holder. 

(B) Except as provided in paragraph 

(b)(2)(ii)(B)(

6

) of this section, beginning 

on March 12, 2019— 

(

1

) Utilizes a complete flight crew; 

(

2

) Includes at least the maneuvers 

and procedures (abnormal and emer-
gency) that may be expected in line op-
erations; 

(

3

) Includes scenario-based or maneu-

ver-based stall prevention training be-
fore, during or after the LOFT scenario 
for each pilot; 

(

4

) Is representative of two flight seg-

ments appropriate to the operations 
being conducted by the certificate 
holder; 

(

5

) Provides an opportunity to dem-

onstrate workload management and 
pilot monitoring skills; and 

(

6

) Beginning on April 27, 2023, pro-

vides an opportunity for each pilot in 
command to demonstrate leadership 
and command skills. 

(3) Is given by an instructor who 

meets the applicable requirements of 
§ 121.412. 

(c) The programmed hours of flight 

training set forth in this subpart do 
not apply if the training program for 
the airplane type includes— 

(1) A course of pilot training in an 

FFS as provided in § 121.424(e); or 

(2) A course of flight engineer train-

ing in an FSTD as provided in 
§ 121.425(d). 

(d) Each certificate holder required 

to comply with § 121.358 of this part 
must use an approved FFS for each air-
plane type in each of its pilot training 
courses that provides training in at 
least the procedures and maneuvers set 
forth in the certificate holder’s ap-
proved low-altitude windshear flight 
training program. The approved low-al-
titude windshear flight training, if ap-
plicable, must be included in each of 
the pilot flight training courses pre-

scribed in §§ 121.409(b), 121.418, 121.424, 
121.426, and 121.427 of this part. 

[Doc. No. 9509, 35 FR 90, Jan. 3, 1970, as 
amended by Amdt. 121–130, 41 FR 47229, Oct. 
28, 1976; Amdt. 121–144, 43 FR 22646, May 25, 
1978; Amdt. 121–199, 53 FR 37696, Sept. 27, 1988; 
Amdt. 121–264, 62 FR 23120, Apr. 28, 1997; 
Amdt. 121–365, 78 FR 42377, July 15, 2013; 
Amdt. 121–366, 78 FR 67837, Nov. 12, 2013; 
Amdt. 121–382, 85 FR 10921, Feb. 25, 2020; 
Amdt. 121–384, 85 FR 39070, June 30, 2020] 

§ 121.410 Airline transport pilot certifi-

cation training program. 

(a) A certificate holder may obtain 

approval to establish and implement a 
training program to satisfy the re-
quirements of § 61.156 of this chapter. 
The training program must be separate 
from the air carrier training program 
required by this part. 

(b) No certificate holder may use a 

person nor may any person serve as an 
instructor in a training program ap-
proved to meet the requirements of 
§ 61.156 of this chapter unless the in-
structor: 

(1) Holds an airline transport pilot 

certificate with an airplane category 
multiengine class rating; 

(2) Has at least 2 years of experience 

as a pilot in command in operations 
conducted under § 91.1053(a)(2)(i) or 
§ 135.243(a)(1) of this chapter, or as a 
pilot in command or second in com-
mand in any operation conducted 
under this part; 

(3) Except for the holder of a flight 

instructor certificate, receives initial 
training on the following topics: 

(i) The fundamental principles of the 

learning process; 

(ii) Elements of effective teaching, 

instruction methods, and techniques; 

(iii) Instructor duties, privileges, re-

sponsibilities, and limitations; 

(iv) Training policies and procedures; 

and 

(v) Evaluation. 
(4) If providing training in a flight 

simulation training device, hold an air-
craft type rating for the aircraft rep-
resented by the flight simulation train-
ing device utilized in the training pro-
gram and have received training within 
the preceding 12 months from the cer-
tificate holder on: 

(i) Proper operation of flight simu-

lator and flight training device con-
trols and systems; 

background image

174 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.411 

(ii) Proper operation of environ-

mental and fault panels; 

(iii) Data and motion limitations of 

simulation; 

(iv) Minimum equipment require-

ments for each curriculum; and 

(v) The maneuvers that will be dem-

onstrated in the flight simulation 
training device. 

(c) A certificate holder may not issue 

a graduation certificate to a student 
unless that student has completed all 
the curriculum requirements of the 
course. 

(d) A certificate holder must conduct 

evaluations to ensure that training 
techniques, procedures, and standards 
are acceptable to the Administrator. 

[Doc. No. FAA–2010–0100, 78 FR 42377, July 15, 
2013] 

§ 121.411 Qualifications: Check airmen 

(airplane) and check airmen (simu-

lator). 

(a) For the purposes of this section 

and § 121.413: 

(1) A check airman (airplane) is a 

person who is qualified, and permitted, 
to conduct flight checks or instruction 
in an airplane, in an FFS, or in a flight 
training device for a particular type 
airplane. 

(2) A check airman (simulator) is a 

person who is qualified to conduct 
flight checks or instruction, but only 
in an FFS or in a flight training device 
for a particular type airplane. 

(3) Check airmen (airplane) and 

check airmen (simulator) are those 
check airmen who perform the func-
tions described in § 121.401(a)(4). 

(b) No certificate holder may use a 

person, nor may any person serve as a 
check airman (airplane) in a training 
program established under this subpart 
unless, with respect to the airplane 
type involved, that person— 

(1) Holds the airman certificates and 

ratings required to serve as a pilot in 
command or flight engineer, as appli-
cable, in operations under this part; 

(2) Has satisfactorily completed the 

appropriate training phases for the air-
plane, including recurrent training, 
that are required to serve as a pilot in 
command or flight engineer, as appli-
cable, in operations under this part; 

(3) Has satisfactorily completed the 

appropriate proficiency or flight 

checks that are required to serve as a 
pilot in command or flight engineer, as 
applicable, in operations under this 
part; 

(4) Has satisfactorily completed the 

applicable training requirements of 
§ 121.413 including inflight training and 
practice for initial and transition 
training; 

(5) Holds at least a Class III medical 

certificate unless serving as a required 
crewmember, in which case holds a 
Class I or Class II medical certificate 
as appropriate; 

(6) Has satisfied the recency of expe-

rience requirements of § 121.439 of this 
part, as applicable; and 

(7) Has been approved by the Admin-

istrator for the check airman duties in-
volved. 

(c) No certificate holder may use a 

person nor may any person serve as a 
check airman (simulator) in a training 
program established under this subpart 
unless, with respect to the airplane 
type involved, that person meets the 
provisions of paragraph (b) of this sec-
tion, or— 

(1) Holds the airman certificates and 

ratings, except medical certificate, re-
quired to serve as a pilot in command 
or a flight engineer, as applicable, in 
operations under this part; 

(2) Has satisfactorily completed the 

appropriate training phases for the air-
plane, including recurrent training, 
that are required to serve as a pilot in 
command or flight engineer, as appli-
cable, in operations under this part; 

(3) Has satisfactorily completed the 

appropriate proficiency or flight 
checks that are required to serve as a 
pilot in command or flight engineer, as 
applicable, in operations under this 
part; 

(4) Has satisfactorily completed the 

applicable training requirements of 
§ 121.413; and 

(5) Has been approved by the Admin-

istrator for the check airman (simu-
lator) duties involved. 

(d) Completion of the requirements 

in paragraphs (b) (2), (3), and (4) or (c) 
(2), (3), and (4) of this section, as appli-
cable, shall be entered in the individ-
ual’s training record maintained by the 
certificate holder. 

(e) Check airmen who have reached 

their 65th birthday or who do not hold 

background image

175 

Federal Aviation Administration, DOT 

§ 121.412 

an appropriate medical certificate may 
function as check airmen, but may not 
serve as pilot flightcrew members in 
operations under this part. 

(f) A check airman (simulator) must 

accomplish the following— 

(1) Fly at least two flight segments 

as a required crewmember for the type 
airplane involved within the 12-month 
period preceding the performance of 
any check airman duty in an FFS; or 

(2) Satisfactorily complete an ap-

proved line-observation program with-
in the period prescribed by that pro-
gram and that must precede the per-
formance of any check airman duty in 
an FFS. 

(g) The flight segments or line-obser-

vation program required in paragraph 
(f) of this section are considered to be 
completed in the month required if 
completed in the calendar month be-
fore or in the calendar month after the 
month in which it is due. 

[Doc. No. 28471, 61 FR 30741, June 17, 1996, as 
amended by Amdt. 121–344, 74 FR 34235, July 
15, 2009; Amdt. 121–366, 78 FR 67837, Nov. 12, 
2013; Amdt. 121–382, 85 FR 10922, Feb. 25, 2020] 

§ 121.412 Qualifications: Flight instruc-

tors (airplane) and flight instruc-

tors (simulator). 

(a) For the purposes of this section 

and § 121.414: 

(1) A flight instructor (airplane) is a 

person who is qualified to instruct in 
an airplane, in an FFS, or in a flight 
training device for a particular type 
airplane. 

(2) A flight instructor (simulator) is a 

person who is qualified to instruct, but 
only in an FFS, in a flight training de-
vice, or both, for a particular type air-
plane. 

(3) Flight instructors (airplane) and 

flight instructors (simulator) are those 
instructors who perform the functions 
described in § 121.401(a)(4). 

(b) No certificate holder may use a 

person nor may any person serve as a 
flight instructor (airplane) in a train-
ing program established under this sub-
part unless, with respect to the air-
plane type involved, that person— 

(1) Holds the airman certificates and 

rating required to serve as a pilot in 
command or flight engineer, as appli-
cable, in operations under this part; 

(2) Has satisfactorily completed the 

appropriate training phases for the air-
plane, including recurrent training, 
that are required to serve as a pilot in 
command or flight engineer, as appli-
cable, in operations under this part; 

(3) Has satisfactorily completed the 

appropriate proficiency or flight 
checks that are required to serve as a 
pilot in command or flight engineer, as 
applicable, in operations under this 
part; 

(4) Has satisfactorily completed the 

applicable training requirements of 
§ 121.414, including inflight training and 
practice for initial and transition 
training; 

(5) Holds at least a Class III medical 

certificate unless serving as a required 
crewmember, in which case holds a 
Class I or a Class II medical certificate 
as appropriate; and 

(6) Has satisfied the recency of expe-

rience requirements of § 121.439 of this 
part, as applicable. 

(c) No certificate holder may use a 

person, nor may any person serve as a 
flight instructor (simulator) in a train-
ing program established under this sub-
part, unless, with respect to the air-
plane type involved, that person meets 
the provisions of paragraph (b) of this 
section, or— 

(1) Holds the airman certificates and 

ratings, except medical certificate, re-
quired to serve as a pilot in command 
or flight engineer, as applicable, in op-
erations under this part; 

(2) Has satisfactorily completed the 

appropriate training phases for the air-
plane, including recurrent training, 
that are required to serve as a pilot in 
command or flight engineer, as appli-
cable, in operations under this part; 

(3) Has satisfactorily completed the 

appropriate proficiency or flight 
checks that are required to serve as a 
pilot in command or flight engineer, as 
applicable, in operations under this 
part; and 

(4) Has satisfactorily completed the 

applicable training requirements of 
§ 121.414. 

(d) Completion of the requirements 

in paragraphs (b) (2), (3), and (4) or (c) 
(2), (3), and (4) of this section as appli-
cable shall be entered in the individ-
ual’s training record maintained by the 
certificate holder. 

background image

176 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.413 

(e) Flight instructors who have 

reached their 65th birthday or who do 
not hold an appropriate medical cer-
tificate may function as flight instruc-
tors, but may not serve as pilot 
flightcrew members in operations 
under this part. 

(f) A flight instructor (simulator) 

must accomplish the following— 

(1) Fly at least two flight segments 

as a required crewmember for the type 
of airplane within the 12-month period 
preceding the performance of any 
flight instructor duty in an FFS (and 
must hold a Class I or Class II medical 
certificate as appropriate); or 

(2) Satisfactorily complete an ap-

proved line-observation program with-
in the period prescribed by that pro-
gram preceding the performance of any 
flight instructor duty in an FFS. 

(g) The flight segments or line-obser-

vation program required in paragraph 
(f) of this section is considered com-
pleted in the month required if com-
pleted in the calendar month before, or 
the calendar month after the month in 
which it is due. 

[Doc. No. 28471, 61 FR 30742, June 17, 1996; 61 
FR 34927, July 3, 1996; 62 FR 3739, Jan. 24, 
1997; Amdt. 121–264, 62 FR 23120, Apr. 28, 1997; 
Amdt. 121–344, 74 FR 34235, July 15, 2009; 
Amdt. 121–355, 76 FR 35104, June 16, 2011; 
Amdt. 121–366, 78 FR 67837, Nov. 12, 2013; 
Amdt. 121–382, 85 FR 10922, Feb. 25, 2020] 

§ 121.413 Initial, transition and recur-

rent training and checking require-

ments: Check airmen (airplane), 

check airmen (simulator). 

(a) No certificate holder may use a 

person nor may any person serve as a 
check airman unless— 

(1) That person has satisfactorily 

completed initial or transition check 
airman training; and 

(2) Within the preceding 24 calendar 

months that person satisfactorily con-
ducts a check or supervises operating 
experience under the observation of an 
FAA inspector or an aircrew des-
ignated examiner employed by the op-
erator. The observation check may be 
accomplished in part or in full in an 
airplane, in an FFS, or in a flight 
training device. 

(b) The observation check required 

by paragraph (a)(2) of this section is 
considered to have been completed in 
the month required if completed in the 

calendar month before, or the calendar 
month after, the month in which it is 
due. 

(c) The initial ground training for 

check airmen must include the fol-
lowing: 

(1) Check airman duties, functions, 

and responsibilities. 

(2) The applicable Code of Federal 

Regulations and the certificate hold-
er’s policies and procedures. 

(3) The appropriate methods, proce-

dures, and techniques for conducting 
the required checks. 

(4) Proper evaluation of student per-

formance including the detection of— 

(i) Improper and insufficient train-

ing; and 

(ii) Personal characteristics of an ap-

plicant that could adversely affect 
safety. 

(5) The appropriate corrective action 

in the case of unsatisfactory checks. 

(6) The approved methods, proce-

dures, and limitations for performing 
the required normal, abnormal, and 
emergency procedures in the airplane. 

(7) For check airmen who conduct 

training or checking in an FFS or a 
flight training device, the following 
subjects specific to the device(s) for the 
airplane type: 

(i) Proper operation of the controls 

and systems; 

(ii) Proper operation of environ-

mental and fault panels; 

(iii) Data and motion limitations of 

simulation; and 

(iv) The minimum airplane simulator 

equipment required by this part or part 
60 of this chapter, for each maneuver 
and procedure completed in an FFS or 
a flight training device. 

(d) The transition ground training for 

check airmen must include the fol-
lowing: 

(1) The approved methods, proce-

dures, and limitations for performing 
the required normal, abnormal, and 
emergency procedures applicable to the 
airplane to which the check airman is 
transitioning. 

(2) For check airmen who conduct 

training or checking in an FFS or a 
flight training device, the following 
subjects specific to the device(s) for the 
airplane type to which the check air-
man is transitioning: 

background image

177 

Federal Aviation Administration, DOT 

§ 121.414 

(i) Proper operation of the controls 

and systems; 

(ii) Proper operation of environ-

mental and fault panels; 

(iii) Data and motion limitations of 

simulation; and 

(iv) The minimum airplane simulator 

equipment required by this part or part 
60 of this chapter, for each maneuver 
and procedure completed in an FFS or 
a flight training device. 

(e) The initial and transition flight 

training for check airmen (airplane) 
must include the following: 

(1) The safety measures for emer-

gency situations that are likely to de-
velop during a check. 

(2) The potential results of improper, 

untimely, or non-execution of safety 
measures during a check. 

(3) For pilot check airman (air-

plane)— 

(i) Training and practice in con-

ducting flight checks from the left and 
right pilot seats in the required nor-
mal, abnormal, and emergency proce-
dures to ensure competence to conduct 
the pilot flight checks required by this 
part; and 

(ii) The safety measures to be taken 

from either pilot seat for emergency 
situations that are likely to develop 
during a check. 

(4) For flight engineer check airmen 

(airplane), training to ensure com-
petence to perform assigned duties. 

(f) The requirements of paragraph (e) 

of this section may be accomplished in 
full or in part inflight, in an FFS, or in 
a flight training device, as appropriate. 

(g) The initial and transition flight 

training for check airmen who conduct 
training or checking in an FFS or a 
flight training device must include the 
following: 

(1) Training and practice in con-

ducting flight checks in the required 
normal, abnormal, and emergency pro-
cedures to ensure competence to con-
duct the flight checks required by this 
part. This training and practice must 
be accomplished in an FFS or in a 
flight training device. 

(2) Training in the operation of FFSs 

or flight training devices, or both, to 
ensure competence to conduct the 
flight checks required by this part. 

(h) Recurrent ground training for 

check airmen who conduct training or 

checking in an FFS or a flight training 
device must be completed every 12 cal-
endar months and must include the 
subjects required in paragraph (c)(7) of 
this section. 

(i) Compliance with paragraphs (c)(7), 

(d)(2), and (h) of this section is required 
no later than March 12, 2019. 

[Doc. No. 28471, 61 FR 30743, June 17, 1996; 62 
FR 3739, Jan. 24, 1997; Amdt. 121–264, 62 FR 
23120, Apr. 28, 1997; Amdt. 121–366, 78 FR 67838, 
Nov. 12, 2013; Amdt. 121–382, 85 FR 10922, Feb. 
25, 2020] 

§ 121.414 Initial, transition and recur-

rent training and checking require-

ments: flight instructors (airplane), 

flight instructors (simulator). 

(a) No certificate holder may use a 

person nor may any person serve as a 
flight instructor unless— 

(1) That person has satisfactorily 

completed initial or transition flight 
instructor training; and 

(2) Within the preceding 24 calendar 

months, that person satisfactorily con-
ducts instruction under the observa-
tion of an FAA inspector, an operator 
check airman, or an aircrew designated 
examiner employed by the operator. 
The observation check may be accom-
plished in part or in full in an airplane, 
in an FFS, or in a flight training de-
vice. 

(b) The observation check required 

by paragraph (a)(2) of this section is 
considered to have been completed in 
the month required if completed in the 
calendar month before, or the calendar 
month after, the month in which it is 
due. 

(c) The initial ground training for 

flight instructors must include the fol-
lowing: 

(1) Flight instructor duties, func-

tions, and responsibilities. 

(2) The applicable Code of Federal 

Regulations and the certificate hold-
er’s policies and procedures. 

(3) The appropriate methods, proce-

dures, and techniques for conducting 
flight instruction. 

(4) Proper evaluation of student per-

formance including the detection of— 

(i) Improper and insufficient train-

ing; and 

(ii) Personal characteristics of an ap-

plicant that could adversely affect 
safety. 

background image

178 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.414 

(5) The corrective action in the case 

of unsatisfactory training progress. 

(6) The approved methods, proce-

dures, and limitations for performing 
the required normal, abnormal, and 
emergency procedures in the airplane. 

(7) Except for holders of a flight in-

structor certificate— 

(i) The fundamental principles of the 

teaching-learning process; 

(ii) Teaching methods and proce-

dures; and 

(iii) The instructor-student relation-

ship. 

(8) For flight instructors who con-

duct training in an FFS or a flight 
training device, the following subjects 
specific to the device(s) for the air-
plane type: 

(i) Proper operation of the controls 

and systems; 

(ii) Proper operation of environ-

mental and fault panels; 

(iii) Data and motion limitations of 

simulation; and 

(iv) The minimum airplane simulator 

equipment required by this part or part 
60 of this chapter, for each maneuver 
and procedure completed in an FFS or 
a flight training device. 

(d) The transition ground training for 

flight instructors must include the fol-
lowing: 

(1) The approved methods, proce-

dures, and limitations for performing 
the required normal, abnormal, and 
emergency procedures applicable to the 
airplane to which the flight instructor 
is transitioning. 

(2) For flight instructors who con-

duct training in an FFS or a flight 
training device, the following subjects 
specific to the device(s) for the air-
plane type to which the flight instruc-
tor is transitioning: 

(i) Proper operation of the controls 

and systems; 

(ii) Proper operation of environ-

mental and fault panels; 

(iii) Data and motion limitations of 

simulation; and 

(iv) The minimum airplane simulator 

equipment required by this part or part 
60 of this chapter, for each maneuver 
and procedure completed in an FFS or 
a flight training device. 

(e) The initial and transition flight 

training for flight instructors (air-
plane) must include the following: 

(1) The safety measures for emer-

gency situations that are likely to de-
velop during instruction. 

(2) The potential results of improper, 

untimely, or non-execution of safety 
measures during instruction. 

(3) For pilot flight instructor (air-

plane)— 

(i) Inflight training and practice in 

conducting flight instruction from the 
left and right pilot seats in the re-
quired normal, abnormal, and emer-
gency procedures to ensure competence 
as an instructor; and 

(ii) The safety measures to be taken 

from either pilot seat for emergency 
situations that are likely to develop 
during instruction. 

(4) For flight engineer instructors 

(airplane), inflight training to ensure 
competence to perform assigned duties. 

(f) The requirements of paragraph (e) 

of this section may be accomplished in 
full or in part inflight, in an FFS, or in 
a flight training device, as appropriate. 

(g) The initial and transition flight 

training for flight instructors who con-
duct training in an FFS or a flight 
training device must include the fol-
lowing: 

(1) Training and practice in the re-

quired normal, abnormal, and emer-
gency procedures to ensure competence 
to conduct the flight instruction re-
quired by this part. This training and 
practice must be accomplished in full 
or in part in an FFS or in a flight 
training device. 

(2) Training in the operation of FFSs 

or flight training devices, or both, to 
ensure competence to conduct the 
flight instruction required by this part. 

(h) Recurrent flight instructor 

ground training for flight instructors 
who conduct training in an FFS or a 
flight training device must be com-
pleted every 12 calendar months and 
must include the subjects required in 
paragraph (c)(8) of this section. 

(i) Compliance with paragraphs (c)(8), 

(d)(2), and (h) of this section is required 
no later than March 12, 2019. 

[Doc. No. 28471, 61 FR 30743, June 17, 1996; 62 
FR 3739, Jan. 24, 1997, as amended by Amdt. 
121–366, 78 FR 67838, Nov. 12, 2013; Amdt. 121– 
382, 85 FR 10922, Feb. 25, 2020] 

background image

179 

Federal Aviation Administration, DOT 

§ 121.415 

§ 121.415 Crewmember and dispatcher 

training program requirements. 

(a) Each training program must pro-

vide the following ground training as 
appropriate to the particular assign-
ment of the crewmember or dispatcher: 

(1) Basic indoctrination ground train-

ing for newly hired crewmembers or 
dispatchers including 40 programmed 
hours of instruction, unless reduced 
under § 121.405 or as specified in 
§ 121.401(d), in at least the following— 

(i) Duties and responsibilities of 

crewmembers or dispatchers, as appli-
cable; 

(ii) Appropriate provisions of the 

Federal Aviation Regulations; 

(iii) Contents of the certificate hold-

er’s operating certificate and oper-
ations specifications (not required for 
flight attendants); and 

(iv) Appropriate portions of the cer-

tificate holder’s operating manual. 

(2) The initial and transition ground 

training specified in §§ 121.419, 121.421 
and 121.422, as applicable. 

(3) For crewmembers, emergency 

training as specified in §§ 121.417 and 
121.805. 

(4) After February 15, 2008, training 

for crewmembers and dispatchers in 
their roles and responsibilities in the 
certificate holder’s passenger recovery 
plan, if applicable. 

(b) Each training program must pro-

vide the flight training specified in 
§§ 121.424 through 121.426, as applicable. 

(c) Each training program must pro-

vide recurrent ground and flight train-
ing as provided in § 121.427. 

(d) Each training program must pro-

vide the differences training specified 
in § 121.418(a) if the Administrator finds 
that, due to differences between air-
planes of the same type operated by 
the certificate holder, additional train-
ing is necessary to insure that each 
crewmember and dispatcher is ade-
quately trained to perform their as-
signed duties. 

(e) Upgrade training: 
(1) Upgrade training as specified in 

§§ 121.420 and 121.426 for a particular 
type airplane may be included in the 
training program for flightcrew mem-
bers who have qualified and served as 
second in command pilot on that air-
plane; or 

(2) Before April 27, 2022, upgrade 

training as specified in §§ 121.419 and 
121.424 for a particular type airplane 
may be included in the training pro-
gram for flightcrew members who have 
qualified and served as second in com-
mand pilot on that airplane. 

(f) Conversion training as specified in 

§§ 121.419 and 121.424 for a particular 
type airplane may be included in the 
training program for flightcrew mem-
bers who have qualified and served as 
flight engineer on that airplane. 

(g) Particular subjects, maneuvers, 

procedures, or parts thereof specified in 
§§ 121.419, 121.420, 121.421, 121.422, 121.424, 
121.425, and 121.426 for transition, con-
version or upgrade training, as applica-
ble, may be omitted, or the pro-
grammed hours of ground instruction 
or inflight training may be reduced, as 
provided in § 121.405. 

(h) In addition to initial, transition, 

conversion, upgrade, recurrent and dif-
ferences training, each training pro-
gram must also provide ground and 
flight training, instruction, and prac-
tice as necessary to insure that each 
crewmember and aircraft dispatcher— 

(1) Remains adequately trained and 

currently proficient with respect to 
each airplane, crewmember position, 
and type of operation in which he 
serves; and 

(2) Qualifies in new equipment, facili-

ties, procedures, and techniques, in-
cluding modifications to airplanes. 

(i) Each training program must in-

clude a process to provide for the reg-
ular analysis of individual pilot per-
formance to identify pilots with per-
formance deficiencies during training 
and checking and multiple failures dur-
ing checking. 

(j) Each training program must in-

clude methods for remedial training 
and tracking of pilots identified in the 
analysis performed in accordance with 
paragraph (i) of this section. 

(k) Compliance with paragraphs (i) 

and (j) of this section is required no 
later than March 12, 2019. 

[Doc. No. 9509, 35 FR 90, Jan. 3, 1970, as 
amended by Amdt. 121–130, 41 FR 47229, Oct. 
28, 1976; Amdt. 121–281, 66 FR 19043, Apr. 12, 
2001; Amdt. 121–329, 72 FR 1881, Jan. 16, 2007; 
Amdt. 121–366, 78 FR 67839, Nov. 12, 2013; 
Amdt. 121–382, 85 FR 10922, Feb. 25, 2020] 

background image

180 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.417 

§ 121.417 Crewmember emergency 

training. 

(a) Each training program must pro-

vide the emergency training set forth 
in this section with respect to each air-
plane type, model, and configuration, 
each required crewmember, and each 
kind of operation conducted, insofar as 
appropriate for each crewmember and 
the certificate holder. 

(b) Emergency training must provide 

the following: 

(1) Instruction in emergency assign-

ments and procedures, including co-
ordination among crewmembers. 

(2) Individual instruction in the loca-

tion, function, and operation of emer-
gency equipment including— 

(i) Equipment used in ditching and 

evacuation; 

(ii) [Reserved] 
(iii) Portable fire extinguishers, with 

emphasis on type of extinguisher to be 
used on different classes of fires; and 

(iv) Emergency exits in the emer-

gency mode with the evacuation slide/ 
raft pack attached (if applicable), with 
training emphasis on the operation of 
the exits under adverse conditions. 

(3) Instruction in the handling of 

emergency situations including— 

(i) Rapid decompression; 
(ii) Fire inflight or on the surface, 

and smoke control procedures with em-
phasis on electrical equipment and re-
lated circuit breakers found in cabin 
areas including all galleys, service cen-
ters, lifts, lavatories and movie 
screens; 

(iii) Ditching and other evacuation, 

including the evacuation of persons 
and their attendants, if any, who may 
need the assistance of another person 
to move expeditiously to an exit in the 
event of an emergency. 

(iv) [Reserved] 
(v) Hijacking and other unusual situ-

ations. 

(4) Review and discussion of previous 

aircraft accidents and incidents per-
taining to actual emergency situa-
tions. 

(c) Each crewmember must accom-

plish the following emergency training 
during the specified training periods, 
using those items of installed emer-
gency equipment for each type of air-
plane in which he or she is to serve (Al-
ternate recurrent training required by 

§ 121.433(c) of this part may be accom-
plished by approved pictorial presen-
tation or demonstration): 

(1) One-time emergency drill require-

ments to be accomplished during ini-
tial training. Each crewmember must 
perform— 

(i) At least one approved protective 

breathing equipment (PBE) drill in 
which the crewmember combats an ac-
tual or simulated fire using at least 
one type of installed hand fire extin-
guisher or approved fire extinguisher 
that is appropriate for the type of ac-
tual fire or simulated fire to be fought 
while using the type of installed PBE 
required by § 121.337 or approved PBE 
simulation device as defined by para-
graph (d) of this section for combatting 
fires aboard airplanes; 

(ii) At least one approved firefighting 

drill in which the crewmember com-
bats an actual fire using at least one 
type of installed hand fire extinguisher 
or approved fire extinguisher that is 
appropriate for the type of fire to be 
fought. This firefighting drill is not re-
quired if the crewmember performs the 
PBE drill of paragraph (c)(1)(i) by com-
bating an actual fire; and 

(iii) An emergency evacuation drill 

with each person egressing the airplane 
or approved training device using at 
least one type of installed emergency 
evacuation slide. The crewmember may 
either observe the airplane exits being 
opened in the emergency mode and the 
associated exit slide/raft pack being de-
ployed and inflated, or perform the 
tasks resulting in the accomplishment 
of these actions. 

(2) Additional emergency drill re-

quirements to be accomplished during 
initial training and once each 24 cal-
endar months during recurrent train-
ing. Each crewmember must— 

(i) Perform the following emergency 

drills and operate the following equip-
ment: 

(A) Each type of emergency exit in 

the normal and emergency modes, in-
cluding the actions and forces required 
in the deployment of the emergency 
evacuation slides; 

(B) Each type of installed hand fire 

extinguisher; 

(C) Each type of emergency oxygen 

system to include protective breathing 
equipment; 

background image

181 

Federal Aviation Administration, DOT 

§ 121.418 

(D) Donning, use, and inflation of in-

dividual flotation means, if applicable; 
and 

(E) Ditching, if applicable, including 

but not limited to, as appropriate: 

(

1

) Cockpit preparation and proce-

dures; 

(

2

) Crew coordination; 

(

3

) Passenger briefing and cabin prep-

aration; 

(

4

) Donning and inflation of life pre-

servers; 

(

5

) Use of life-lines; and 

(

6

) Boarding of passengers and crew 

into raft or a slide/raft pack. 

(ii) Observe the following drills: 
(A) Removal from the airplane (or 

training device) and inflation of each 
type of life raft, if applicable; 

(B) Transfer of each type of slide/raft 

pack from one door to another; 

(C) Deployment, inflation, and de-

tachment from the airplane (or train-
ing device) of each type of slide/raft 
pack; and 

(D) Emergency evacuation including 

the use of a slide. 

(d) After September 1, 1993, no crew-

member may serve in operations under 
this part unless that crewmember has 
performed the PBE drill and the fire-
fighting drill described by paragraphs 
(c)(1)(i) and (c)(1)(ii) of this section, as 
part of a one-time training require-
ment of paragraphs (c)(1) or (c)(2) of 
this section as appropriate. Any crew-
member who performs the PBE drill 
and the firefighting drill prescribed in 
paragraphs (c)(1)(i) and (c)(1)(ii) of this 
section after May 26, 1987, is deemed to 
be in compliance with this regulation 
upon presentation of information or 
documentation, in a form and manner 
acceptable to the Executive Director, 
Flight Standards Service, showing that 
the appropriate drills have been accom-
plished. 

(e) Crewmembers who serve in oper-

ations above 25,000 feet must receive 
instruction in the following: 

(1) Respiration. 
(2) Hypoxia. 
(3) Duration of consciousness without 

supplemental oxygen at altitude. 

(4) Gas expansion. 
(5) Gas bubble formation. 
(6) Physical phenomena and incidents 

of decompression. 

(f) For the purposes of this section 

the following definitions apply: 

(1) 

Actual fire 

means an ignited com-

bustible material, in controlled condi-
tions, of sufficient magnitude and du-
ration to accomplish the training ob-
jectives outlined in paragraphs (c)(1)(i) 
and (c)(1)(ii) of this section. 

(2) 

Approved fire extinguisher 

means a 

training device that has been approved 
by the Administrator for use in meet-
ing the training requirements of 
§ 121.417(c). 

(3) 

Approved PBE simulation device 

means a training device that has been 
approved by the Administrator for use 
in meeting the training requirements 
of § 121.417(c). 

(4) 

Combats, 

in this context, means to 

properly fight an actual or simulated 
fire using an appropriate type of fire 
extinguisher until that fire is extin-
guished. 

(5) 

Observe 

means to watch without 

participating actively in the drill. 

(6) 

PBE drill 

means an emergency 

drill in which a crewmember dem-
onstrates the proper use of protective 
breathing equipment while fighting an 
actual or simulated fire. 

(7) 

Perform 

means to satisfactorily 

accomplish a prescribed emergency 
drill using established procedures that 
stress the skill of the persons involved 
in the drill. 

(8) 

Simulated fire 

means an artificial 

duplication of smoke or flame used to 
create various aircraft firefighting sce-
narios, such as lavatory, galley oven, 
and aircraft seat fires. 

[Doc. No. 9509, 35 FR 90, Jan. 3, 1970] 

E

DITORIAL

N

OTE

: For F

EDERAL

R

EGISTER

ci-

tations affecting § 121.417, see the List of CFR 
Sections Affected, which appears in the 
Finding Aids section of the printed volume 
and at 

www.govinfo.gov. 

§ 121.418 Differences training and re-

lated aircraft differences training. 

(a) 

Differences training. 

(1) Differences 

training for crewmembers and dis-
patchers must consist of at least the 
following as applicable to their as-
signed duties and responsibilities: 

(i) Instruction in each appropriate 

subject or part thereof required for ini-
tial ground training in the airplane un-
less the Administrator finds that par-
ticular subjects are not necessary. 

background image

182 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.419 

(ii) Flight training in each appro-

priate maneuver or procedure required 
for initial flight training in the air-
plane unless the Administrator finds 
that particular maneuvers or proce-
dures are not necessary. 

(iii) The number of programmed 

hours of ground and flight training de-
termined by the Administrator to be 
necessary for the airplane, the oper-
ation, and the crewmember or aircraft 
dispatcher involved. 

(2) Differences training for all vari-

ations of a particular type airplane 
may be included in initial, transition, 
conversion, upgrade, and recurrent 
training for the airplane. 

(b) 

Related aircraft differences training. 

(1) In order to seek approval of related 
aircraft differences training for 
flightcrew members, a certificate hold-
er must submit a request for related 
aircraft designation to the Adminis-
trator, and obtain approval of that re-
quest. 

(2) If the Administrator determines 

under paragraph (b)(1) of this section 
that a certificate holder is operating 
related aircraft, the certificate holder 
may submit to the Administrator a re-
quest for approval of a training pro-
gram that includes related aircraft dif-
ferences training. 

(3) A request for approval of a train-

ing program that includes related air-
craft differences training must include 
at least the following: 

(i) Each appropriate subject required 

for the ground training for the related 
aircraft. 

(ii) Each appropriate maneuver or 

procedure required for the flight train-
ing and crewmember emergency train-
ing for the related aircraft. 

(iii) The number of programmed 

hours of ground training, flight train-
ing and crewmember emergency train-
ing necessary based on review of the re-
lated aircraft and the duty position. 

(c) 

Approved related aircraft differences 

training. 

Approved related aircraft dif-

ferences training for flightcrew mem-
bers may be included in initial, transi-
tion, conversion, upgrade and recurrent 
training for the base aircraft. If the 
certificate holder’s approved training 
program includes related aircraft dif-
ferences training in accordance with 
paragraph (b) of this section, the train-

ing required by §§ 121.419, 121.420, 
121.424, 121.425, 121.426, and 121.427, as 
applicable to flightcrew members, may 
be modified for the related aircraft. 

[Doc. No. 9509, 35 FR 90, Jan. 3, 1970, as 
amended by Amdt. 121–366, 78 FR 67839, Nov. 
12, 2013; Amdt. 121–382, 85 FR 10922, Feb. 25, 
2020] 

§ 121.419 Pilots and flight engineers: 

Initial, transition, conversion and 

upgrade ground training. 

(a) Except as provided in paragraph 

(b) of this section, initial and conver-
sion ground training for pilots and ini-
tial and transition ground training for 
flight engineers, must include instruc-
tion in at least the following as appli-
cable to their assigned duties: 

(1) General subjects— 
(i) The certificate holder’s dispatch 

or flight release procedures; 

(ii) Principles and methods for deter-

mining weight and balance, and run-
way limitations for takeoff and land-
ing; 

(iii) Enough meteorology to insure a 

practical knowledge of weather phe-
nomena, including the principles of 
frontal systems, icing, fog, thunder-
storms, and high altitude weather situ-
ations; 

(iv) Air traffic control systems, pro-

cedures, and phraseology; 

(v) Navigation and the use of naviga-

tion aids, including instrument ap-
proach procedures; 

(vi) Normal and emergency commu-

nication procedures; 

(vii) Visual cues prior to and during 

descent below DA/DH or MDA; 

(viii) Approved crew resource man-

agement initial training; and 

(ix) Other instructions as necessary 

to ensure pilot and flight engineer 
competence. 

(2) For each airplane type— 
(i) A general description; 
(ii) Performance characteristics; 
(iii) Engines and propellers; 
(iv) Major components; 
(v) Major airplane systems (e.g., 

flight controls, electrical, hydraulic); 
other systems as appropriate; prin-
ciples of normal, abnormal, and emer-
gency operations; appropriate proce-
dures and limitations; 

(vi) Procedures for— 

background image

183 

Federal Aviation Administration, DOT 

§ 121.419 

(A) Recognizing and avoiding severe 

weather situations; 

(B) Escaping from severe weather sit-

uations, in case of inadvertent encoun-
ters, including low-altitude windshear, 
and 

(C) Operating in or near thunder-

storms (including best penetrating al-
titudes), turbulent air (including clear 
air turbulence), icing, hail, and other 
potentially hazardous meteorological 
conditions; 

(vii) Operating limitations; 
(viii) Fuel consumption and cruise 

control; 

(ix) Flight planning; 
(x) Each normal and emergency pro-

cedure; 

(xi) For pilots, stall prevention and 

recovery in clean configuration, take-
off and maneuvering configuration, and 
landing configuration. 

(xii) For pilots, upset prevention and 

recovery; and 

(xiii) The approved Airplane Flight 

Manual. 

(b) Initial and conversion ground 

training for pilots who have completed 
the airline transport pilot certification 
training program in § 61.156 of this 
chapter, and transition ground training 
for pilots, must include instruction in 
at least the following as applicable to 
their assigned duties: 

(1) Ground training specific to the 

certificate holder’s— 

(i) Dispatch or flight release proce-

dures; 

(ii) Method for determining weight 

and balance and runway limitations for 
takeoff and landing; 

(iii) Meteorology hazards applicable 

to the certificate holder’s areas of op-
eration; 

(iv) Approved departure, arrival, and 

approach procedures; 

(v) Normal and emergency commu-

nication procedures; and 

(vi) Approved crew resource manage-

ment training. 

(2) The training required by para-

graph (a)(2) of this section for the air-
plane type. 

(c) Beginning on April 27, 2022, and in 

addition to the requirements in para-
graph (a) or (b) of this section, as appli-
cable, initial ground training for pilots 
in command must include instruction 

and facilitated discussion on the fol-
lowing: 

(1) Leadership and command, includ-

ing flightcrew member duties under 
§ 121.542; and 

(2) Mentoring, including techniques 

for instilling and reinforcing the high-
est standards of technical performance, 
airmanship, and professionalism in 
newly hired pilots. 

(d) Initial ground training for pilots 

and flight engineers must consist of at 
least the following programmed hours 
of instruction in the required subjects 
specified in paragraph (a) of this sec-
tion and in § 121.415(a) unless reduced 
under § 121.405: 

(1) Group I airplanes— 
(i) Reciprocating powered, 64 hours; 

and 

(ii) Turbopropeller powered, 80 hours. 
(2) Group II airplanes, 120 hours. 
(e) Initial ground training for pilots 

who have completed the airline trans-
port pilot certification training pro-
gram in § 61.156 must consist of at least 
the following programmed hours of in-
struction in the required subjects spec-
ified in paragraph (b) of this section 
and in § 121.415(a) unless reduced under 
§ 121.405: 

(1) Group I airplanes— 
(i) Reciprocating powered, 54 hours; 

and 

(ii) Turbopropeller powered, 70 hours. 
(2) Group II airplanes, 110 hours. 
(f) 

Compliance and pilot programmed 

hours. 

(1) Compliance with the require-

ments identified in paragraphs 
(a)(2)(xi) and (a)(2)(xii) of this section 
is required no later than March 12, 2019. 

(2) Beginning March 12, 2019, initial 

programmed hours applicable to pilots 
as specified in paragraphs (d) and (e) of 
this section must include 2 additional 
hours. 

(g) Before April 27, 2022, upgrade 

ground training must include either 
the instruction specified in paragraph 
(a) of this section or the instruction 
specified in § 121.420. Beginning on April 
27, 2022, upgrade ground training must 
include the instruction specified in 
§ 121.420. 

[Doc. No. FAA–2010–0100, 78 FR 42377, July 15, 
2013, as amended by Amdt. 121–366, 78 FR 
67839, Nov. 12, 2013; Amdt. 121–382, 85 FR 
10922, Feb. 25, 2020] 

background image

184 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.420 

§ 121.420 Pilots: Upgrade ground train-

ing. 

(a) Upgrade ground training must in-

clude instruction in at least the fol-
lowing subjects as applicable to the du-
ties assigned to the pilot in command: 

(1) Seat dependent procedures, as ap-

plicable; 

(2) Duty position procedures, as ap-

plicable; and 

(3) Crew resource management, in-

cluding decision making, authority and 
responsibility, and conflict resolution. 

(b) In addition to the requirements in 

paragraph (a) of this section, upgrade 
ground training must include instruc-
tion and facilitated discussion on the 
following: 

(1) Leadership and command, includ-

ing flightcrew member duties under 
§ 121.542; and 

(2) Mentoring, including techniques 

for reinforcing the highest standards of 
technical performance, airmanship, 
and professional development in newly 
hired pilots. 

(c) Compliance date: Beginning on 

April 27, 2022, upgrade ground training 
must satisfy the requirements of this 
section. 

[Amdt. 121–382, 85 FR 10923, Feb. 25, 2020] 

§ 121.421 Flight attendants: Initial and 

transition ground training. 

(a) Initial and transition ground 

training for flight attendants must in-
clude instruction in at least the fol-
lowing: 

(1) General subjects— 
(i) The authority of the pilot in com-

mand; 

(ii) Passenger handling, including the 

procedures to be followed in the case of 
deranged persons or other persons 
whose conduct might jeopardize safety; 
and 

(iii) Approved crew resource manage-

ment initial training. 

(2) For each airplane type— 
(i) A general description of the air-

plane emphasizing physical character-
istics that may have a bearing on 
ditching, evacuation, and inflight 
emergency procedures and on other re-
lated duties; 

(ii) The use of both the public address 

system and the means of commu-
nicating with other flight crew-
members, including emergency means 

in the case of attempted hijacking or 
other unusual situations; and 

(iii) Proper use of electrical galley 

equipment and the controls for cabin 
heat and ventilation. 

(b) Initial and transition ground 

training for flight attendants must in-
clude a competence check to determine 
ability to perform assigned duties and 
responsibilities. 

(c) Initial ground training for flight 

attendants must consist of at least the 
following programmed hours of in-
struction in the subjects specified in 
paragraph (a) of this section and in 
§ 121.415(a) unless reduced under 
§ 121.405. 

(1) Group I airplanes— 
(i) Reciprocating powered, 8 hours; 

and 

(ii) Turbopropeller powered, 8 hours. 
(2) Group II airplanes, 16 hours. 

[Doc. No. 9509, 35 FR 90, Jan. 3, 1970, as 
amended by Amdt. 121–250, 60 FR 65949, Dec. 
20, 1995] 

§ 121.422 Aircraft dispatchers: Initial 

and transition ground training. 

(a) Initial and transition ground 

training for aircraft dispatchers must 
include instruction in at least the fol-
lowing: 

(1) General subjects— 
(i) Use of communications systems 

including the characteristics of those 
systems and the appropriate normal 
and emergency procedures; 

(ii) Meteorology, including various 

types of meteorological information 
and forecasts, interpretation of weath-
er data (including forecasting of en 
route and terminal temperatures and 
other weather conditions), frontal sys-
tems, wind conditions, and use of ac-
tual and prognostic weather charts for 
various altitudes; 

(iii) The NOTAM system; 
(iv) Navigational aids and publica-

tions; 

(v) Joint dispatcher-pilot responsibil-

ities; 

(vi) Characteristics of appropriate 

airports; 

(vii) Prevailing weather phenomena 

and the available sources of weather 
information; 

(viii) Air traffic control and instru-

ment approach procedures; and 

background image

185 

Federal Aviation Administration, DOT 

§ 121.423 

(ix) Approved dispatcher resource 

management (DRM) initial training. 

(2) For each airplane— 
(i) A general description of the air-

plane emphasizing operating and per-
formance characteristics, navigation 
equipment, instrument approach and 
communication equipment, emergency 
equipment and procedures, and other 
subjects having a bearing on dispatcher 
duties and responsibilities; 

(ii) Flight operation procedures in-

cluding procedures specified in 
§ 121.419(a)(2)(vi); 

(iii) Weight and balance computa-

tions; 

(iv) Basic airplane performance dis-

patch requirements and procedures; 

(v) Flight planning including track 

selection, flight time analysis, and fuel 
requirements; and 

(vi) Emergency procedures. 
(3) Emergency procedures must be 

emphasized, including the alerting of 
proper governmental, company, and 
private agencies during emergencies to 
give maximum help to an airplane in 
distress. 

(b) Initial and transition ground 

training for aircraft dispatchers must 
include a competence check given by 
an appropriate supervisor or ground in-
structor that demonstrates knowledge 
and ability with the subjects set forth 
in paragraph (a) of this section. 

(c) Initial ground training for air-

craft dispatchers must consist of at 
least the following programmed hours 
of instruction in the subjects specified 
in paragraph (a) of this section and in 
§ 121.415(a) unless reduced under 
§ 121.405: 

(1) Group I airplanes— 
(i) Reciprocating powered, 30 hours; 

and 

(ii) Turbopropeller powered, 40 hours. 
(2) Group II airplanes, 40 hours. 

[Doc. No. 9509, 35 FR 90, Jan. 3, 1970, as 
amended by Amdt. 121–250, 60 FR 65949, Dec. 
20, 1995] 

§ 121.423 Pilots: Extended Envelope 

Training. 

(a) Each certificate holder must in-

clude in its approved training program, 
the extended envelope training set 
forth in this section with respect to 
each airplane type for each pilot. The 
extended envelope training required by 

this section must be performed in a 
Level C or higher full flight simulator, 
approved by the Administrator in ac-
cordance with § 121.407 of this part. 

(b) Extended envelope training must 

include the following maneuvers and 
procedures: 

(1) Manually controlled slow flight; 
(2) Manually controlled loss of reli-

able airspeed; 

(3) Manually controlled instrument 

departure and arrival; 

(4) Upset recovery maneuvers; and 
(5) Recovery from bounced landing. 
(c) Extended envelope training must 

include instructor-guided hands on ex-
perience of recovery from full stall and 
stick pusher activation, if equipped. 

(d) Recurrent training: Within 24 cal-

endar months preceding service as a 
pilot, each person must satisfactorily 
complete the extended envelope train-
ing described in paragraphs (b)(1) 
through (4) and (c) of this section. 
Within 36 calendar months preceding 
service as a pilot, each person must 
satisfactorily complete the extended 
envelope training described in para-
graph (b)(5) of this section. 

(e) Deviation from use of Level C or 

higher full flight simulator: 

(1) A certificate holder may submit a 

request to the Administrator for ap-
proval of a deviation from the require-
ments of paragraph (a) of this section 
to conduct the extended envelope 
training using an alternative method 
to meet the learning objectives of this 
section. 

(2) A request for deviation from para-

graph (a) of this section must include 
the following information: 

(i) A simulator availability assess-

ment, including hours by specific simu-
lator and location of the simulator, 
and a simulator shortfall analysis that 
includes the training that cannot be 
completed in a Level C or higher full 
flight simulator; and 

(ii) Alternative methods for achiev-

ing the learning objectives of this sec-
tion. 

(3) A certificate holder may request 

an extension of a deviation issued 
under this section. 

(4) Deviations or extensions to devi-

ations will be issued for a period not to 
exceed 12 months. 

background image

186 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.424 

(f) Compliance with this section is re-

quired no later than March 12, 2019. For 
the recurrent training required in para-
graph (d) of this section, each pilot 
qualified to serve as second in com-
mand or pilot in command in oper-
ations under this part on March 12, 2019 
must complete the recurrent extended 
envelope training within 12 calendar 
months after March 12, 2019. 

[Doc. No. FAA–2008–0677, 78 FR 67839, Nov. 12, 
2013; Amdt. 121–382, 85 FR 10923, Feb. 25, 2020] 

§ 121.424 Pilots: Initial, transition, con-

version, and upgrade flight train-

ing. 

(a) Initial, transition, and conversion 

flight training for pilots must include 
the following: 

(1) Flight training and practice in the 

maneuvers and procedures set forth in 
the certificate holder’s approved low- 
altitude windshear flight training pro-
gram and in appendix E to this part, as 
applicable; and 

(2) Extended envelope training set 

forth in § 121.423. 

(b) Beginning on April 27, 2022, in ad-

dition to the requirements in para-
graph (a) of this section, initial flight 
training for pilots in command must 
include sufficient scenario-based train-
ing incorporating CRM and leadership 
and command skills, to ensure the pi-
lot’s proficiency as pilot in command. 
The training required by this para-
graph may be completed inflight or in 
an FSTD. 

(c) The training required by para-

graph (a) of this section must be per-
formed inflight except— 

(1) That windshear maneuvers and 

procedures must be performed in an 
FFS in which the maneuvers and pro-
cedures are specifically authorized to 
be accomplished; 

(2) That the extended envelope train-

ing required by § 121.423 must be per-
formed in a Level C or higher full 
flight simulator unless the Adminis-
trator has issued to the certificate 
holder a deviation in accordance with 
§ 121.423(e); and 

(3) To the extent that certain other 

maneuvers and procedures may be per-
formed in an FFS, an FTD, or a static 
airplane as permitted in appendix E to 
this part. 

(d) Except as permitted in paragraph 

(e) of this section, the initial flight 
training required by paragraph (a)(1) of 
this section must include at least the 
following programmed hours of inflight 
training and practice unless reduced 
under § 121.405; 

(1) Group I airplanes— 
(i) 

Reciprocating powered. 

Pilot in 

command, 10 hours; second in com-
mand, 6 hours; and 

(ii) 

Turbopropeller powered. 

Pilot in 

command, 15 hours; second in com-
mand, 7 hours. 

(2) 

Group II airplanes. 

Pilot in com-

mand, 20 hours; second in command, 10 
hours. 

(e) If the certificate holder’s ap-

proved training program includes a 
course of training utilizing an FFS 
under § 121.409 (c) and (d) of this part, 
each pilot must successfully com-
plete— 

(1) With respect to § 121.409(c) of this 

part— 

(i) Training and practice in the FFS 

in at least all of the maneuvers and 
procedures set forth in appendix E of 
this part for initial flight training that 
are capable of being performed in an 
FFS; and 

(ii) A proficiency check in the FFS or 

the airplane to the level of proficiency 
of a pilot in command or second in 
command, as applicable, in at least the 
maneuvers and procedures set forth in 
appendix F of this part that are capa-
ble of being performed in an FFS. 

(2) With respect to § 121.409(d) of this 

part, training and practice in at least 
the maneuvers and procedures set forth 
in the certificate holder’s approved 
low-altitude windshear flight training 
program that are capable of being per-
formed in an FFS in which the maneu-
vers and procedures are specifically au-
thorized. 

(f) Compliance with paragraphs (a)(2) 

and (c)(2) of this section is required no 
later than March 12, 2019. 

(g) Before April 27, 2022, upgrade 

flight training must be provided in ac-
cordance with paragraphs (a), (c), (e), 
and (f), of this section or § 121.426. Be-
ginning on April 27, 2022, upgrade flight 

background image

187 

Federal Aviation Administration, DOT 

§ 121.426 

training must be provided as specified 
in § 121.426. 

[Doc. No. 9509, 35 FR 90, Jan. 3, 1970, as 
amended by Amdt. 121–199, 53 FR 37697, Sept. 
27, 1988; Amdt. 121–366, 78 FR 67840, Nov. 12, 
2013; Amdt. 121–382, 85 FR 10923, Feb. 25, 2020; 
Amdt. 121–384, 85 FR 39070, June 30, 2020] 

§ 121.425 Flight engineers: Initial and 

transition flight training. 

(a) Initial and transition flight train-

ing for flight engineers must include at 
least the following: 

(1) Training and practice in proce-

dures related to the carrying out of 
flight engineer duties and functions. 
This training and practice may be ac-
complished either inflight or in an 
FSTD. 

(2) A flight check that includes— 
(i) Preflight inspection; 
(ii) Inflight performance of assigned 

duties accomplished from the flight en-
gineer station during taxi, runup, take-
off, climb, cruise, descent, approach, 
and landing; 

(iii) Accomplishment of other func-

tions, such as fuel management and 
preparation of fuel consumption 
records, and normal and emergency or 
alternate operation of all airplane 
flight systems, performed either 
inflight or in an FSTD. 

(b) Flight engineers possessing a 

commercial pilot certificate with an 
instrument, category and class rating, 
or pilots already qualified as second in 
command and reverting to flight engi-
neer, may complete the entire flight 
check, required by paragraph (a)(2) of 
this section, in an approved FFS. 

(c) Except as permitted in paragraph 

(d) of this section, the initial flight 
training required by paragraph (a) of 
this section must include at least the 
same number of programmed hours of 
flight training and practice that are 
specified for a second in command pilot 
under § 121.424(c) unless reduced under 
§ 121.405. 

(d) If the certificate holder’s ap-

proved training program includes a 
course of training utilizing an FSTD 
under § 121.409(c), each flight engineer 
must successfully complete in the 
FSTD — 

(1) Training and practice in at least 

all of the assigned duties, procedures, 

and functions required by paragraph (a) 
of this section; and 

(2) A flight check to a flight engineer 

level of proficiency in the assigned du-
ties, procedures, and functions. 

[Doc. No. 9509, 35 FR 90, Jan. 3, 1970, as 
amended by Amdt. 121–144, 43 FR 22647, May 
25, 1978; Amdt. 121–382, 85 FR 10923, Feb. 25, 
2020] 

§ 121.426 Pilots: Upgrade flight train-

ing. 

(a) Upgrade flight training for pilots 

must include the following: 

(1) Seat dependent maneuvers and 

procedures, as applicable; 

(2) Duty position maneuvers and pro-

cedures, as applicable; 

(3) Extended envelope training set 

forth in § 121.423; 

(4) Maneuvers and procedures set 

forth in the certificate holder’s low al-
titude windshear flight training pro-
gram; 

(5) Sufficient scenario-based training 

incorporating CRM and leadership and 
command skills, to ensure the pilot’s 
proficiency as pilot in command; and 

(6) Sufficient training to ensure the 

pilot’s knowledge and skill with re-
spect to the following: 

(i) The airplane, its systems and com-

ponents; 

(ii) Proper control of airspeed, con-

figuration, direction, altitude, and at-
titude in accordance with the Airplane 
Flight Manual, the certificate holder’s 
operations manual, checklists, or other 
approved material appropriate to the 
airplane type; and 

(iii) Compliance with ATC, instru-

ment procedures, or other applicable 
procedures. 

(b) The training required by para-

graph (a) of this section must be per-
formed inflight except— 

(1) That windshear maneuvers and 

procedures must be performed in an 
FFS in which the maneuvers and pro-
cedures are specifically authorized to 
be accomplished; 

(2) That the extended envelope train-

ing required by § 121.423 must be per-
formed in a Level C or higher FFS un-
less the Administrator has issued to 
the certificate holder a deviation in ac-
cordance with § 121.423(e); and 

background image

188 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.427 

(3) To the extent that certain other 

maneuvers and procedures may be per-
formed in an FFS, an FTD, or a static 
airplane as permitted in Appendix E of 
this part. 

(c) If the certificate holder’s ap-

proved training program includes a 
course of training utilizing an FFS 
under § 121.409(c) and (d), each pilot 
must successfully complete— 

(1) With respect to § 121.409(c)—A pro-

ficiency check in the FFS or the air-
plane to the level of proficiency of a 
pilot in command in at least the ma-
neuvers and procedures set forth in Ap-
pendix F of this part that are capable 
of being performed in an FFS. 

(2) With respect to § 121.409(d), train-

ing and practice in at least the maneu-
vers and procedures set forth in the 
certificate holder’s approved low-alti-
tude windshear flight training program 
that are capable of being performed in 
an FFS in which the maneuvers and 
procedures are specifically authorized. 

(d) Compliance dates: Beginning on 

April 27, 2022, upgrade flight training 
must satisfy the requirements of this 
section. 

[Amdt. 121–382, 85 FR 10924, Feb. 25, 2020] 

§ 121.427 Recurrent training. 

(a) Recurrent training must ensure 

that each crewmember or aircraft dis-
patcher is adequately trained and cur-
rently proficient with respect to the 
type airplane (including differences 
training, if applicable) and crew-
member position involved. 

(b) Recurrent ground training for 

crewmembers and dispatchers must in-
clude at least the following: 

(1) A quiz or other review to deter-

mine the state of the crewmember’s or 
dispatcher’s knowledge with respect to 
the airplane and position involved. 

(2) Instruction as necessary in the 

following: 

(i) For pilots, the subjects required 

for ground training by §§ 121.415(a)(1), 
(3), and (4) and 121.419(b); 

(ii) For flight engineers, the subjects 

required for ground training by 
§§ 121.415(a)(1), (3), and (4) and 121.419(a); 

(iii) For flight attendants, the sub-

jects required for ground training by 
§§ 121.415(a)(1), (3), and (4) and 121.421(a); 
and 

(iv) For aircraft dispatchers, the sub-

jects required for ground training by 
§§ 121.415(a)(1) and (4) and 121.422(a). 

(3) For flight attendants and dis-

patchers, a competence check as re-
quired by §§ 121.421(b) and 121.422(b), re-
spectively. 

(4) For crewmembers, CRM training 

and for aircraft dispatchers, DRM 
training. For flightcrew members, CRM 
training or portions thereof may be ac-
complished during an approved FFS 
line-oriented flight training (LOFT) 
session. 

(c) Recurrent ground training for 

crewmembers and aircraft dispatchers 
must consist of at least the following 
programmed hours of instruction in 
the required subjects specified in para-
graph (b) of this section unless reduced 
under § 121.405: 

(1) For pilots— 
(i) Group I reciprocating powered air-

planes, 15 hours; 

(ii) Group I turbopropeller powered 

airplanes, 19 hours; and 

(iii) Group II airplanes, 24 hours. 
(2) For flight engineers— 
(i) Group I, reciprocating powered 

airplanes, 16 hours; 

(ii) Group I turbopropeller powered 

airplanes, 20 hours; and 

(iii) Group II airplanes, 25 hours. 
(3) For flight attendants— 
(i) Group I reciprocating powered air-

planes, 4 hours; 

(ii) Group I turbopropeller powered 

airplanes, 5 hours; and 

(iii) Group II airplanes, 12 hours. 
(4) For aircraft dispatchers— 
(i) Group I reciprocating powered air-

planes, 8 hours; 

(ii) Group I turbopropeller powered 

airplanes, 10 hours; and 

(iii) Group II airplanes, 20 hours. 
(d) Recurrent ground training for pi-

lots serving as pilot in command: 

(1) Within 36 months preceding serv-

ice as pilot in command, each person 
must complete recurrent ground train-
ing on leadership and command and 
mentoring. This training is in addition 
to the ground training required in 
paragraph (b) of this section and the 
programmed hours required in para-
graph (c) of this section. This training 
must include instruction and facili-
tated discussion on the following: 

background image

189 

Federal Aviation Administration, DOT 

§ 121.431 

(i) Leadership and command, includ-

ing instruction on flightcrew member 
duties under § 121.542; and 

(ii) Mentoring, including techniques 

for instilling and reinforcing the high-
est standards of technical performance, 
airmanship, and professionalism in 
newly hired pilots. 

(2) The requirements of paragraph 

(d)(1) do not apply until after a pilot 
has completed ground training on lead-
ership and command and mentoring, as 
required by §§ 121.419, 121.420 and 121.429, 
as applicable. 

(e) Recurrent flight training for 

flightcrew members must include at 
least the following: 

(1) For pilots— 
(i) Extended envelope training as re-

quired by § 121.423 of this part; and 

(ii) Flight training in an approved 

FFS in maneuvers and procedures set 
forth in the certificate holder’s ap-
proved low-altitude windshear flight 
training program and flight training in 
maneuvers and procedures set forth in 
Appendix F of this part, or in a flight 
training program approved by the Ad-
ministrator, except as follows— 

(A) The number of programmed 

inflight hours is not specified; and 

(B) Satisfactory completion of a pro-

ficiency check may be substituted for 
recurrent flight training as permitted 
in § 121.433(c) and (e) of this part. 

(2) For flight engineers, flight train-

ing as provided by § 121.425(a) except as 
follows— 

(i) The specified number of inflight 

hours is not required; and 

(ii) The flight check, other than the 

preflight inspection, may be conducted 
in an FSTD. The preflight inspection 
may be conducted in an airplane, or by 
using an approved pictorial means that 
realistically portrays the location and 
detail of preflight inspection items and 
provides for the portrayal of abnormal 
conditions. Satisfactory completion of 
an approved line-oriented flight train-
ing may be substituted for the flight 
check. 

(f) Compliance and pilot programmed 

hours: 

(1) Compliance with the requirements 

identified in paragraph (e)(1)(i) of this 
section is required no later than March 
12, 2019. 

(2) After March 12, 2019, recurrent 

programmed hours applicable to pilots 
as specified in paragraph (c)(1) of this 
section must include 30 additional min-
utes. 

[Doc. No. 9509, 35 FR 90, Jan. 30, 1970, as 
amended by Amdt. 121–80, 36 FR 19362, Oct. 5, 
1971; Amdt. 121–144, 43 FR 22647, May 25, 1978; 
Amdt.121–199, 53 FR 37697, Sept. 27, 1988; 
Amdt. 121–250, 60 FR 65949, Dec. 20, 1995; 
Amdt. 121–281, 66 FR 19043, Apr. 12, 2001; 
Amdt. 121–366, 78 FR 67840, Nov. 12, 2013; 
Amdt. 121–382, 85 FR 10924, Feb. 25, 2020] 

§ 121.429 Pilots in command: Leader-

ship and command and mentoring 
training. 

(a) Beginning on April 27, 2023, no 

certificate holder may use a pilot as 
pilot in command in an operation 
under this part unless the pilot has 
completed the following ground train-
ing in accordance with the certificate 
holder’s approved training program: 

(1) Leadership and command training 

in § 121.419(c)(1) and mentoring training 
in § 121.419(c)(2); or 

(2) Leadership and command training 

in § 121.420(b)(1) and mentoring training 
in § 121.420(b)(2). 

(b) Credit for training provided by 

the certificate holder: 

(1) The Administrator may credit 

leadership and command training and 
mentoring training completed by the 
pilot, with that certificate holder, after 
April 27, 2017, and prior to April 27, 
2020, toward all or part of the training 
required by paragraph (a) of this sec-
tion. 

(2) In granting credit for the training 

required by paragraph (a) of this sec-
tion, the Administrator may consider 
training aids, devices, methods, and 
procedures used by the certificate hold-
er in voluntary leadership and com-
mand and mentoring instruction. 

[Amdt. 121–382, 85 FR 10925, Feb. 25, 2020] 

Subpart O—Crewmember 

Qualifications 

§ 121.431 Applicability. 

(a) This subpart: 
(1) Prescribes crewmember qualifica-

tions for all certificate holders except 
where otherwise specified; and 

background image

190 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.432 

(2) Permits training center personnel 

authorized under part 142 of this chap-
ter who meet the requirements of 
§§ 121.411 through 121.414 to provide 
training, testing, and checking under 
contract or other arrangement to those 
persons subject to the requirements of 
this subpart. 

(b) For the purpose of this subpart, 

the airplane groups and terms and defi-
nitions prescribed in § 121.400 and the 
following definitions apply: 

Consolidation 

is the process by which 

a person through practice and practical 
experience increases proficiency in 
newly acquired knowledge and skills. 

Line operating flight time 

is flight time 

performed in operations under this 
part. 

Operating cycle 

is a complete flight 

segment consisting of a takeoff, climb, 
enroute portion, descent, and a land-
ing. 

[Doc. No. 10171, 36 FR 12284, June 30, 1971, as 
amended by Amdt. 121–250, 60 FR 65949, Dec. 
20, 1995; Amdt. 121–248, 60 FR 20869, Apr. 27, 
1995; Amdt. 121–250, 60 FR 65949, Dec. 20, 1995; 
Amdt. 121–259, 61 FR 34561, July 2, 1996; 
Amdt. 121–263, 62 FR 13791, Mar. 21, 1997; 
Docket FAA–2010–0100, Amdt. 121–365B, 81 FR 
2, Jan. 4, 2016; Amdt. 121–382, 85 FR 10925, 
Feb. 25, 2020] 

§ 121.432 General. 

(a) Except in the case of operating 

experience under § 121.434 and ground 
training for mentoring required by 
§§ 121.419, 121.420, 121.427, and 121.429, as 
applicable, a pilot who serves as second 
in command of an operation that re-
quires three or more pilots must be 
fully qualified to act as pilot in com-
mand of that operation. 

(b) No certificate holder may conduct 

a check or any training in operations 
under this part, except for the fol-
lowing checks and training required by 
this part or the certificate holder: 

(1) Line checks for pilots. 
(2) Flight engineer checks (except for 

emergency procedures), if the person 
being checked is qualified and current 
in accordance with § 121.453(a). 

(3) Flight attendant training and 

competence checks. 

(c) Except for pilot line checks and 
flight engineer flight checks, the per-

son being trained or checked may not 
be used as a required crewmember. 

[Doc. No. 9509, 35 FR 95, Jan. 3, 1970, as 
amended by Amdt. 121–130, 41 FR 47229, Oct. 
28, 1976; Amdt. 121–366, 78 FR 67840, Nov. 12, 
2013; Amdt. 121–382, 85 FR 10925, Feb. 25, 2020] 

§ 121.433 Training required. 

(a) 

Initial training. 

No certificate 

holder may use any person nor may 
any person serve as a required crew-
member on an airplane unless that per-
son has satisfactorily completed, in a 
training program approved under sub-
part N of this part, initial ground and 
flight training for that type airplane 
and for the particular crewmember po-
sition, except as follows: 

(1) Crewmembers who have qualified 

and served as a crewmember on an-
other type airplane of the same group 
may serve in the same crewmember ca-
pacity upon completion of transition 
training as provided in § 121.415. 

(2) Crewmembers who have qualified 

and served as second in command or 
flight engineer on a particular type air-
plane may serve as pilot in command 
or second in command, respectively, 
upon completion of upgrade or conver-
sion training, as applicable, for that 
airplane as provided in § 121.415. 

(b) 

Differences training. 

No certificate 

holder may use any person nor may 
any person serve as a required crew-
member on an airplane of a type for 
which differences training is included 
in the certificate holder’s approved 
training program unless that person 
has satisfactorily completed, with re-
spect to both the crewmember position 
and the particular variation of the air-
plane in which the person serves, either 
initial or transition ground and flight 
training, or differences training, as 
provided in § 121.415. 

(c) 

Recurrent training. 

(1) No certifi-

cate holder may use any person nor 
may any person serve as a required 
crewmember on an airplane unless, 
within the preceding 12 calendar 
months— 

(i) For flight crewmembers, the per-

son has satisfactorily completed recur-
rent ground and flight training for that 
airplane and crewmember position and 
a flight check as applicable; 

(ii) For flight attendants and dis-

patchers, the person has satisfactorily 

background image

191 

Federal Aviation Administration, DOT 

§ 121.434 

completed recurrent ground training 
and a competence check; and 

(iii) In addition, for pilots in com-

mand the person has satisfactorily 
completed, within the preceding 6 cal-
endar months, recurrent flight training 
in addition to the recurrent flight 
training required in paragraph (c)(1)(i) 
of this section, in an airplane in which 
the person serves as pilot in command 
in operations under this part. 

(2) For pilots, a proficiency check as 

provided in § 121.441 of this part may be 
substituted for the recurrent flight 
training required by this paragraph 
and the approved FFS course of train-
ing under § 121.409(b) of this part may 
be substituted for alternate periods of 
recurrent flight training required in 
that airplane, except as provided in 
paragraphs (d) and (e) of this section. 

(d) For each airplane in which a pilot 

serves as pilot in command, the person 
must satisfactorily complete either re-
current flight training or a proficiency 
check within the preceding 12 calendar 
months. The requirement in this para-
graph expires on March 12, 2019. After 
that date, the requirement in 
§ 121.441(a)(1)(ii) of this part applies. 

(e) Notwithstanding paragraphs (c)(2) 

and (d) of this section, a proficiency 
check as provided in § 121.441 of this 
part may not be substituted for the ex-
tended envelope training required by 
§ 121.423 or training in those maneuvers 
and procedures set forth in a certifi-
cate holder’s approved low-altitude 
windshear flight training program 
when that program is included in a re-
current flight training course as re-
quired by § 121.409(d) of this part. 

[Doc. No. 9509, 35 FR 95, Jan. 3, 1970, as 
amended by Amdt. 121–91, 37 FR 10729, May 
27, 1972; Amdt. 121–199, 53 FR 37697, Sept. 27, 
1988; Amdt. 121–366, 78 FR 67840, Nov. 12, 2013; 
Amdt. 121–382, 85 FR 10925, Feb. 25, 2020] 

§ 121.434 Operating experience, oper-

ating cycles, and consolidation of 

knowledge and skills. 

(a) No certificate holder may use a 

person nor may any person serve as a 
required crewmember of an airplane 
unless the person has satisfactorily 
completed, on that type airplane and in 
that crewmember position, the oper-
ating experience, operating cycles, and 
the line operating flight time for con-

solidation of knowledge and skills, re-
quired by this section, except as fol-
lows: 

(1) Crewmembers other than pilots in 

command may serve as provided herein 
for the purpose of meeting the require-
ments of this section. 

(2) Pilots who are meeting the pilot 

in command requirements may serve as 
second in command. 

(3) Separate operating experience, op-

erating cycles, and line operating 
flight time for consolidation of knowl-
edge and skills are not required for 
variations within the same type air-
plane. 

(4) Deviation based upon designation 

of related aircraft in accordance with 
§ 121.418(b). 

(i) The Administrator may authorize 

a deviation from the operating experi-
ence, operating cycles, and line oper-
ating flight time for consolidation of 
knowledge and skills required by this 
section based upon a designation of re-
lated aircraft in accordance with 
§ 121.418(b) of this part and a determina-
tion that the certificate holder can 
demonstrate an equivalent level of 
safety. 

(ii) A request for deviation from the 

operating experience, operating cycles, 
and line operating flight time for con-
solidation of knowledge and skills re-
quired by this section based upon a des-
ignation of related aircraft must be 
submitted to the Administrator. The 
request must include the following: 

(A) Identification of aircraft operated 

by the certificate holder designated as 
related aircraft. 

(B) Hours of operating experience and 

number of operating cycles necessary 
based on review of the related aircraft, 
the operation, and the duty position. 

(C) Consolidation hours necessary 

based on review of the related aircraft, 
the operation, and the duty position. 

(iii) The administrator may, at any 

time, terminate a grant of deviation 
authority issued under this paragraph 
(a)(4). 

(b) In acquiring the operating experi-

ence, operating cycles, and line oper-
ating flight time for consolidation of 
knowledge and skills, crewmembers 
must comply with the following: 

background image

192 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.434 

(1) In the case of a flight crew-

member, the person must hold the ap-
propriate certificates and ratings for 
the crewmember position and the air-
plane, except that a pilot who is meet-
ing the pilot in command requirements 
must hold the appropriate certificates 
and ratings for a pilot in command in 
the airplane. 

(2) The operating experience, oper-

ating cycles, and line operating flight 
time for consolidation of knowledge 
and skills must be acquired after satis-
factory completion of the appropriate 
ground and flight training for the par-
ticular airplane type and crewmember 
position. 

(3) In the case of a pilot who satisfac-

torily completed the preflight visual 
inspection of an aircraft by approved 
pictorial means during an initial, tran-
sition, conversion, or upgrade pro-
ficiency check, the pilot must also 
demonstrate proficiency to a check 
pilot on at least one complete preflight 
visual inspection of the interior and ex-
terior of a static airplane. This dem-
onstration of proficiency must be com-
pleted by the pilot and certified by the 
check pilot before the completion of 
operating experience. 

(4) The experience must be acquired 

inflight during operations under this 
part. However, in the case of an air-
craft not previously used by the certifi-
cate holder in operations under this 
part, operating experience acquired in 
the aircraft during proving flights or 
ferry flights may be used to meet this 
requirement. 

(c) Pilot crewmembers must acquire 

operating experience and operating cy-
cles as follows: 

(1) A pilot in command must— 
(i) Perform the duties of a pilot in 

command under the supervision of a 
check pilot; and 

(ii) For a qualifying pilot in com-

mand completing initial or upgrade 
training specified in § 121.424 or 
§ 121.426, be observed in the perform-
ance of prescribed duties by an FAA in-
spector during at least one flight leg 
which includes a takeoff and landing. 
During the time that a qualifying pilot 
in command is acquiring the operating 
experience in paragraphs (c)(l)(i) and 
(ii) of this section, a check pilot who is 
also serving as the pilot in command 

must occupy a pilot station. However, 
in the case of a transitioning pilot in 
command the check pilot serving as 
pilot in command may occupy the ob-
server’s seat, if the transitioning pilot 
has made at least two takeoffs and 
landings in the type airplane used, and 
has satisfactorily demonstrated to the 
check pilot that he is qualified to per-
form the duties of a pilot in command 
of that type of airplane. 

(2) A second in command pilot must 

perform the duties of a second in com-
mand under the supervision of an ap-
propriately qualified check pilot. 

(3) The hours of operating experience 

and operating cycles for all pilots are 
as follows: 

(i) For initial training, 15 hours in 

Group I reciprocating powered air-
planes, 20 hours in Group I turbo-
propeller powered airplanes, and 25 
hours in Group II airplanes. Operating 
experience in both airplane groups 
must include at least 4 operating cy-
cles (at least 2 as the pilot flying the 
airplane). 

(ii) For transition training, except as 

provided in paragraph (c)(3)(iii) of this 
section, 10 hours in Group I recipro-
cating powered airplanes, 12 hours in 
Group I turbopropeller powered air-
planes, 25 hours for pilots in command 
in Group II airplanes, and 15 hours for 
second in command pilots in Group II 
airplanes. Operating experience in both 
airplane groups must include at least 4 
operating cycles (at least 2 as the pilot 
flying the airplane). 

(iii) In the case of transition training 

where the certificate holder’s approved 
training program includes a course of 
training in an FFS under § 121.409(c), 
each pilot in command must comply 
with the requirements prescribed in 
paragraph (c)(3)(i) of this section for 
initial training. 

(d) A flight engineer must perform 

the duties of a flight engineer under 
the supervision of a check airman or a 
qualified flight engineer for at least 
the following number of hours: 

(1) Group I reciprocating powered air-

planes, 8 hours. 

(2) Group I turbopropeller powered 

airplanes, 10 hours. 

(3) Group II airplanes, 12 hours. 

background image

193 

Federal Aviation Administration, DOT 

§ 121.434 

(e) A flight attendant must, for at 

least 5 hours, perform the assigned du-
ties of a flight attendant under the su-
pervision of a flight attendant super-
visor qualified under this part who per-
sonally observes the performance of 
these duties. However, operating expe-
rience is not required for a flight at-
tendant who has previously acquired 
such experience on any large passenger 
carrying airplane of the same group, if 
the certificate holder shows that the 
flight attendant has received sufficient 
ground training for the airplane in 
which the flight attendant is to serve. 
Flight attendants receiving operating 
experience may not be assigned as a re-
quired crewmember. Flight attendants 
who have satisfactorily completed 
training time acquired in an approved 
training program conducted in a full- 
scale (except for length) cabin training 
device of the type airplane in which 
they are to serve may substitute this 
time for 50 percent of the hours re-
quired by this paragraph. 

(f) Flight crewmembers may sub-

stitute one additional takeoff and land-
ing for each hour of flight to meet the 
operating experience requirements of 
this section, up to a maximum reduc-
tion of 50% of flight hours, except 
those in Group II initial training, and 
second in command pilots in Group II 
transition training. 

(g) Except as provided in paragraph 

(h) of this section, pilot in command 
and second in command crewmembers 
must each acquire at least 100 hours of 
line operating flight time for consoli-
dation of knowledge and skills (includ-
ing operating experience required 
under paragraph (c) of this section) 
within 120 days after the satisfactory 
completion of: 

(1) Any part of the flight maneuvers 

and procedures portion of either an air-
line transport pilot certificate with 
type rating practical test or an addi-
tional type rating practical test, or 

(2) A § 121.441 proficiency check. 
(h) The following exceptions apply to 

the consolidation requirement of para-
graph (g) of this section: 

(1) Pilots who have qualified and 

served as pilot in command or second 
in command on a particular type air-
plane in operations under this part be-
fore August 25, 1995 are not required to 

complete line operating flight time for 
consolidation of knowledge and skills. 

(2) Pilots who have completed the 

line operating flight time requirement 
for consolidation of knowledge and 
skills while serving as second in com-
mand on a particular type airplane in 
operations under this part after August 
25, 1995 are not required to repeat the 
line operating flight time before serv-
ing as pilot in command on the same 
type airplane. 

(3) If, before completing the required 

100 hours of line operating flight time, 
a pilot serves as a pilot in another air-
plane type operated by the certificate 
holder, the pilot may not serve as a 
pilot in the airplane for which the pilot 
has newly qualified unless the pilot 
satifactorily completes refresher train-
ing as provided in the certificate hold-
er’s approved training program and 
that training is conducted by an appro-
priately qualified instructor or check 
pilot. 

(4) If the required 100 hours of line 

operating flight time are not com-
pleted within 120 days, the certificate 
holder may extend the 120-day period 
to no more than 150 days if— 

(i) The pilot continues to meet all 

other applicable requirements of sub-
part O of this part; and 

(ii) On or before the 120th day the 

pilot satisfactorily completes refresher 
training conducted by an appropriately 
qualified instructor or check pilot as 
provided in the certificate holder’s ap-
proved training program, or a check 
pilot determines that the pilot has re-
tained an adequate level of proficiency 
after observing that pilot in a super-
vised line operating flight. 

(5) The Administrator, upon applica-

tion by the certificate holder, may au-
thorize deviations from the require-
ments of paragraph (g) of this section, 
by an appropriate amendment to the 
operations specifications, to the extent 
warranted by any of the following cir-
cumstances: 

(i) A newly certificated certificate 

holder does not employ any pilots who 
meet the minimum requirements of 
paragraph (g) of this section. 

(ii) An existing certificate holder 

adds to its fleet an airplane type not 
before proven for use in its operations. 

background image

194 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.435 

(iii) A certificate holder establishes a 

new domicile to which it assigns pilots 
who will be required to become quali-
fied on the airplanes operated from 
that domicile. 

(i) Notwithstanding the reductions in 

programmed hours permitted under 
§§ 121.405 and 121.409 of subpart N of this 
part, the hours of operating experience 
for crewmembers are not subject to re-
duction other than as provided in ac-
cordance with a deviation authorized 
under paragraph (a) of this section or 
as provided in paragraphs (e) and (f) of 
this section. 

[Doc. No. 9509, 35 FR 95, Jan. 3, 1970, as 
amended by Amdt. 121–74, 36 FR 12284, June 
30, 1971; Amdt. 121–91, 37 FR 10729, May 27, 
1972; Amdt. 121–140, 43 FR 9599, Mar. 9, 1978; 
Amdt. 121–144, 43 FR 22647, May 25, 1978; 
Amdt. 121–159, 45 FR 41593, June 19, 1980; 
Amdt. 121–248, 60 FR 20870, Apr. 27, 1995; 
Amdt. 121–366, 78 FR 67840, Nov. 12, 2013; 
Amdt. 121–382, 85 FR 10925, Feb. 25, 2020] 

§ 121.435 Pilots: Operations Famil-

iarization. 

(a) 

Applicability. 

The operations fa-

miliarization requirements in para-
graph (b) of this section apply to all 
persons newly hired by the certificate 
holder to serve as a pilot in part 121 op-
erations and who began the certificate 
holder’s basic indoctrination ground 
training on or after April 27, 2022. The 
requirements in paragraph (b) of this 
section also apply to all certificate 
holders required to comply with this 
subpart, except for those certificate 
holders operating under part 135 of this 
chapter that have been authorized to 
comply with this subpart instead of the 
requirements of part 135, subparts E, G, 
and H, pursuant to § 135.3(c), and those 
fractional ownership program man-
agers operating under part 91, subpart 
K, of this chapter that have been au-
thorized to comply with this subpart 
instead of §§ 91.1065 through 91.1107, pur-
suant to § 91.1063(b) of this chapter. 

(b) 

Operations familiarization require-

ments. 

(1) No certificate holder may 

use, and no person may serve as, a pilot 
in operations under this part unless 
that person has completed the oper-
ations familiarization required by this 
paragraph (b). Operations familiariza-
tion may be completed during or after 
basic indoctrination training, but must 

be completed before the pilot begins 
operating experience under § 121.434. 

(2) Operations familiarization must 

include at least two operating cycles 
conducted by the certificate holder in 
accordance with the operating rules of 
this part. 

(3) All pilots completing operations 

familiarization must occupy the ob-
server seat on the flight deck and have 
access to and use an operational head-
set. 

(c) 

Deviation. 

(1) A certificate holder 

who operates an aircraft that does not 
have an observer seat on the flight 
deck may submit a request to the Ad-
ministrator for approval of a deviation 
from the requirements of paragraphs 
(a) and (b) of this section. 

(2) A request for deviation from any 

of the requirements in paragraphs (a) 
and (b) of this section must include the 
following information: 

(i) The total number and types of air-

craft operated by the certificate holder 
in operations under this part that do 
not have an observer seat on the flight 
deck; 

(ii) The total number and types of 

aircraft operated by the certificate 
holder in operations under this part 
that do have an observer seat on the 
flight deck; and 

(iii) Alternative methods for achiev-

ing the objectives of this section. 

(3) A certificate holder may request 

an extension of a deviation issued 
under this section. 

(4) Deviations or extensions to devi-

ations will be issued for a period not to 
exceed 12 months. 

[Amdt. 121–382, 85 FR 10925, Feb. 25, 2020] 

§ 121.436 Pilot Qualification: Certifi-

cates and experience requirements. 

(a) No certificate holder may use nor 

may any pilot act as pilot in command 
of an aircraft (or as second in command 
of an aircraft in a flag or supplemental 
operation that requires three or more 
pilots) unless the pilot: 

(1) Holds an airline transport pilot 

certificate not subject to the limita-
tions in § 61.167 of this chapter; 

(2) Holds an appropriate aircraft type 

rating for the aircraft being flown; and 

(3) If serving as pilot in command in 

part 121 operations, has 1,000 hours as: 

background image

195 

Federal Aviation Administration, DOT 

§ 121.439 

(i) Second in command in operations 

under this part; 

(ii) Pilot in command in operations 

under § 91.1053(a)(2)(i) of this chapter; 

(iii) Pilot in command in operations 

under § 135.243(a)(1) of this chapter; 

(iv) Pilot in command in eligible on- 

demand operations that require the 
pilot to satisfy § 135.4(a)(2)(ii)(A) of this 
chapter; or 

(v) Any combination thereof. 
(b) No certificate holder may use nor 

may any pilot act as second in com-
mand unless the pilot holds an airline 
transport pilot certificate and an ap-
propriate aircraft type rating for the 
aircraft being flown. A second-in-com-
mand type rating obtained under § 61.55 
does not satisfy the requirements of 
this section. 

(c) For the purpose of satisfying the 

flight hour requirement in paragraph 
(a)(3) of this section, a pilot may credit 
500 hours of military flight time pro-
vided the flight time was obtained— 

(1) As pilot in command in a multien-

gine, turbine-powered, fixed-wing air-
plane or powered-lift aircraft, or any 
combination thereof; and 

(2) In an operation requiring more 

than one pilot. 

(d) For the purpose of satisfying the 

flight hour requirement in paragraph 
(a)(3) of this section, a pilot may credit 
flight time obtained as pilot in com-
mand in operations under this part 
prior to July 31, 2013. 

(e) For those pilots who were em-

ployed as pilot in command in part 121 
operations on July 31, 2013, compliance 
with the requirements of paragraph 
(a)(3) of this section is not required. 

[Doc. No. FAA–2010–0100, 78 FR 42378, July 15, 
2013, as amended by Amdt. 121–365A, 78 FR 
77574, Dec. 24, 2013; Amdt. 121–385, 87 FR 57590, 
Sept. 21, 2022] 

§ 121.438 Pilot operating limitations 

and pairing requirements. 

(a) If the second in command has 

fewer than 100 hours of flight time as 
second in command in operations under 
this part in the type airplane being 
flown, and the pilot in command is not 
an appropriately qualified check pilot, 
the pilot in command must make all 
takeoffs and landings in the following 
situations: 

(1) At special airports designated by 

the Administrator or at special air-
ports designated by the certificate 
holder; and 

(2) In any of the following conditions: 
(i) The prevailing visibility value in 

the latest weather report for the air-
port is at or below 

3

4

mile. 

(ii) The runway visual range for the 

runway to be used is at or below 4,000 
feet. 

(iii) The runway to be used has 

water, snow, slush or similar condi-
tions that may adversely affect air-
plane performance. 

(iv) The braking action on the run-

way to be used is reported to be less 
than ‘‘good’’. 

(v) The crosswind component for the 

runway to be used is in excess of 15 
knots. 

(vi) Windshear is reported in the vi-

cinity of the airport. 

(vii) Any other condition in which 

the PIC determines it to be prudent to 
exercise the PIC’s prerogative. 

(b) No person may conduct oper-

ations under this part unless, for that 
type airplane, either the pilot in com-
mand or the second in command has at 
least 75 hours of line operating flight 
time, either as pilot in command or 
second in command. The Administrator 
may, upon application by the certifi-
cate holder, authorize deviations from 
the requirements of this paragraph (b) 
by an appropriate amendment to the 
operations specifications in any of the 
following circumstances: 

(1) A newly certificated certificate 

holder does not employ any pilots who 
meet the minimum requirements of 
this paragraph. 

(2) An existing certificate holder adds 

to its fleet a type airplane not before 
proven for use in its operations. 

(3) An existing certificate holder es-

tablishes a new domicile to which it as-
signs pilots who will be required to be-
come qualified on the airplanes oper-
ated from that domicile. 

[Doc. No. 27210, 60 FR 20870, Apr. 27, 1995] 

§ 121.439 Pilot qualification: Recent 

experience. 

(a) No certificate holder may use any 

person nor may any person serve as a 
required pilot flightcrew member, un-
less within the preceding 90 days, that 

background image

196 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.440 

person has made at least three takeoffs 
and landings in the type airplane in 
which that person is to serve. The 
takeoffs and landings required by this 
paragraph may be performed in a Level 
B or higher FFS approved under 
§ 121.407 to include takeoff and landing 
maneuvers. In addition, any person 
who fails to make the three required 
takeoffs and landings within any con-
secutive 90-day period must re-estab-
lish recency of experience as provided 
in paragraph (b) of this section. 

(b) In addition to meeting all applica-

ble training and checking requirements 
of this part, a required pilot flightcrew 
member who has not met the require-
ments of paragraph (a) of this section 
must re-establish recency of experience 
as follows: 

(1) Under the supervision of a check 

airman, make at least three takeoffs 
and landings in the type airplane in 
which that person is to serve or in a 
Level B or higher FFS. 

(2) The takeoffs and landings re-

quired in paragraph (b)(1) of this sec-
tion must include— 

(i) At least one takeoff with a simu-

lated failure of the most critical pow-
erplant; 

(ii) At least one landing from an ILS 

approach to the lowest ILS minimum 
authorized for the certificate holder; 
and 

(iii) At least one landing to a full 

stop. 

(c) [Reserved] 
(d) When using an FFS to accomplish 

any of the requirements of paragraphs 
(a) or (b) of this section, each required 
flightcrew member position must be 
occupied by an appropriately qualified 
person, and the FFS must be operated 
as if in a normal inflight environment 
without use of the repositioning fea-
tures of the FFS. 

(e) A check airman who observes the 

takeoffs and landings prescribed in 
paragraph (b)(1) of this section shall 
certify that the person being observed 
is proficient and qualified to perform 
flight duty in operations under this 
part and may require any additional 
maneuvers that are determined nec-
essary to make this certifying state-
ment. 

(f) Deviation authority based upon 

designation of related aircraft in ac-
cordance with § 121.418(b). 

(1) The Administrator may authorize 

a deviation from the requirements of 
paragraph (a) of this section based 
upon a designation of related aircraft 
in accordance with § 121.418(b) of this 
part and a determination that the cer-
tificate holder can demonstrate an 
equivalent level of safety. 

(2) A request for deviation from para-

graph (a) of this section must be sub-
mitted to the Administrator. The re-
quest must include the following: 

(i) Identification of aircraft operated 

by the certificate holder designated as 
related aircraft. 

(ii) The number of takeoffs, landings, 

maneuvers, and procedures necessary 
to maintain or re-establish recency 
based on review of the related aircraft, 
the operation, and the duty position. 

(3) The administrator may, at any 

time, terminate a grant of deviation 
authority issued under this paragraph 
(f). 

[Doc. No. 16383, 43 FR 22648, May 25, 1978, as 
amended by Amdt. 121–148, 43 FR 46235, Oct. 
5, 1978; Amdt. 121–179, 47 FR 33390, Aug. 2, 
1982; Amdt. 121–366, 78 FR 67841, Nov. 12, 2013; 
Amdt. 121–382, 85 FR 10926, Feb. 25, 2020] 

§ 121.440 Line checks. 

(a) No certificate holder may use any 

person nor may any person serve as 
pilot in command of an airplane unless, 
within the preceding 12 calendar 
months, that person has passed a line 
check in which he satisfactorily per-
forms the duties and responsibilities of 
a pilot in command in one of the types 
of airplanes he is to fly. 

(b) A pilot in command line check for 

domestic and flag operations must— 

(1) Be given by a pilot check airman 

who is currently qualified on both the 
route and the airplane; and 

(2) Consist of at least one flight over 

a typical part of the certificate hold-
er’s route, or over a foreign or Federal 
airway, or over a direct route. 

(c) A pilot in command line check for 

supplemental operations must— 

(1) Be given by a pilot check airman 

who is currently qualified on the air-
plane; and 

background image

197 

Federal Aviation Administration, DOT 

§ 121.441 

(2) Consist of at least one flight over 

a part of a Federal airway, foreign air-
way, or advisory route over which the 
pilot may be assigned. 

[Doc. No. 9509, 35 FR 96, Jan. 3, 1970, as 
amended by Amdt. 121–143, 43 FR 22642, May 
25, 1978; Amdt. 121–253, 61 FR 2612, Jan. 26, 
1996; Amdt. 121–344, 74 FR 34235, July 15, 2009; 
Amdt. 121–359, 77 FR 34785, June 12, 2012] 

§ 121.441 Proficiency checks. 

(a) No certificate holder may use any 

person nor may any person serve as a 
required pilot flight crewmember un-
less that person has satisfactorily com-
pleted either a proficiency check, or an 
approved FFS course of training under 
§ 121.409, as follows: 

(1) For a pilot in command— 
(i) Before March 12, 2019, 
(A) A proficiency check within the 

preceding 12 calendar months and, 

(B) In addition, within the preceding 

6 calendar months, either a proficiency 
check or the approved FFS course of 
training. 

(ii) Beginning on March 12, 2019, 
(A) A proficiency check within the 

preceding 12 calendar months in the 
aircraft type in which the person is to 
serve and, 

(B) In addition, within the preceding 

6 calendar months, either a proficiency 
check or the approved FFS course of 
training. 

(2) For all other pilots— 
(i) Within the preceding 24 calendar 

months either a proficiency check or 
the line-oriented flight training course 
under § 121.409; and 

(ii) Within the preceding 12 calendar 

months, either a proficiency check or 
any FFS training course under § 121.409 

(b) Except as provided in paragraphs 

(c) and (d) of this section, a proficiency 
check must meet the following require-
ments: 

(1) It must include at least the proce-

dures and maneuvers set forth in ap-
pendix F to this part unless otherwise 
specifically provided in that appendix. 

(2) It must be given by the Adminis-

trator or a pilot check airman. 

(c) An approved FFS or FTD may be 

used in the conduct of a proficiency 
check as provided in appendix F to this 
part. 

(d) A person giving a proficiency 

check may, in his or her discretion, 

waive any of the maneuvers or proce-
dures for which a specific waiver au-
thority is set forth in Appendix F of 
this part if the conditions in para-
graphs (d)(1) through (3) of this section 
are satisfied: 

(1) The Administrator has not specifi-

cally required the particular maneuver 
or procedure to be performed. 

(2) The pilot being checked is, at the 

time of the check, employed by a cer-
tificate holder as a pilot. 

(3) The pilot being checked meets one 

of the following conditions: 

(i) The pilot is currently qualified for 

operations under this part in the par-
ticular type airplane and flightcrew 
member position. 

(ii) The pilot has, within the pre-

ceding six calendar months, satisfac-
torily completed an approved training 
curriculum, except for an upgrade 
training curriculum in accordance with 
§§ 121.420 and 121.426, for the particular 
type airplane. 

(e) If the pilot being checked fails 

any of the required maneuvers, the per-
son giving the proficiency check may 
give additional training to the pilot 
during the course of the proficiency 
check. In addition to repeating the ma-
neuvers failed, the person giving the 
proficiency check may require the 
pilot being checked to repeat any other 
maneuvers he finds are necessary to de-
termine the pilot’s proficiency. If the 
pilot being checked is unable to dem-
onstrate satisfactory performance to 
the person conducting the check, the 
certificate holder may not use him nor 
may he serve in operations under this 
part until he has satisfactorily com-
pleted a proficiency check. 

(f) Deviation authority based upon 

designation of related aircraft in ac-
cordance with § 121.418(b) of this part. 

(1) The Administrator may authorize 

a deviation from the proficiency check 
requirements of paragraphs (a), (b)(1), 
and (c) of this section based upon a des-
ignation of related aircraft in accord-
ance with § 121.418(b) of this part and a 
determination that the certificate 
holder can demonstrate an equivalent 
level of safety. 

(2) A request for deviation from para-

graphs (a), (b)(1), and (c) of this section 

background image

198 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.443 

must be submitted to the Adminis-
trator. The request must include the 
following: 

(i) Identification of aircraft operated 

by the certificate holder designated as 
related aircraft. 

(ii) Based on review of the related 

aircraft, the operation, and the duty 
position: 

(A) For recurrent proficiency checks, 

the frequency of the related aircraft 
proficiency check, the maneuvers and 
procedures to be included in the related 
aircraft proficiency check, and the 
level of FSTD to be used for each ma-
neuver and procedure. 

(B) For qualification proficiency 

checks, the maneuvers and procedures 
to be included in the related aircraft 
proficiency check and the level of 
FSTD to be used for each maneuver 
and procedure. 

(3) The administrator may, at any 

time, terminate a grant of deviation 
authority issued under this paragraph 
(f). 

[Doc. No. 9509, 35 FR 96, Jan. 3, 1970, as 
amended by Amdt. 121–103, 38 FR 12203, May 
10, 1973, Amdt. 121–108, 38 FR 35446, Dec. 28, 
1973; Amdt. 121–144, 43 FR 22648, May 25, 1978; 
Amdt. 121–263, 62 FR 13791, Mar. 21, 1997; 
Amdt. 121–366, 78 FR 67841, Nov. 12, 2013; 
Docket FAA–2016–9526, Amdt. 121–377, 81 FR 
90983, Dec. 16, 2016; Amdt. 121–377A, 81 FR 
95860, Dec. 29, 2016; Amdt. 121–377B, 83 FR 
12475, Mar. 22, 2018; Amdt. 121–382, 85 FR 
10926, Feb. 25, 2020] 

§ 121.443 Pilot in command qualifica-

tion: Route and airports. 

(a) Each certificate holder shall pro-

vide a system acceptable to the Admin-
istrator for disseminating the informa-
tion required by paragraph (b) of this 
section to the pilot in command and 
appropriate flight operation personnel. 
The system must also provide an ac-
ceptable means for showing compliance 
with § 121.445. 

(b) No certificate holder may use any 

person, nor may any person serve, as 
pilot in command unless the certificate 
holder has provided that person cur-
rent information concerning the fol-
lowing subjects pertinent to the areas 
over which that person is to serve, and 
to each airport and terminal area into 
which that person is to operate, and 
ensures that that person has adequate 

knowledge of, and the ability to use, 
the information: 

(1) Weather characteristics appro-

priate to the season. 

(2) Navigation facilities. 
(3) Communication procedures, in-

cluding airport visual aids. 

(4) Kinds of terrain and obstructions. 
(5) Minimum safe flight levels. 
(6) En route and terminal area ar-

rival and departure procedures, holding 
procedures and authorized instrument 
approach procedures for the airports 
involved. 

(7) Congested areas and physical lay-

out of each airport in the terminal area 
in which the pilot will operate. 

(8) Notices to Airmen. 

[Doc. No. 17897, 45 FR 41594, June 19, 1980; 
Amdt. 121–159, 45 FR 43154, June 26, 1980] 

§ 121.445 Pilot in command airport 

qualification: Special areas and air-

ports. 

(a) The Administrator may deter-

mine that certain airports (due to 
items such as surrounding terrain, ob-
structions, or complex approach or de-
parture procedures) are special airports 
requiring special airport qualifications 
and that certain areas or routes, or 
both, require a special type of naviga-
tion qualification. 

(b) Except as provided in paragraph 

(c) of this section, no certificate holder 
may use any person, nor may any per-
son serve, as pilot in command to or 
from an airport determined to require 
special airport qualifications unless, 
within the preceding 12 calendar 
months: 

(1) The pilot in command or second in 

command has made an entry to that 
airport (including a takeoff and land-
ing) while serving as a pilot flight 
crewmember; or 

(2) The pilot in command has quali-

fied by using pictorial means accept-
able to the Administrator for that air-
port. 

(c) Paragraph (b) of this section does 

not apply when an entry to that air-
port (including a takeoff or a landing) 
is being made if the ceiling at that air-
port is at least 1,000 feet above the low-
est MEA or MOCA, or initial approach 
altitude prescribed for the instrument 
approach procedure for that airport, 

background image

199 

Federal Aviation Administration, DOT 

§ 121.463 

and the visibility at that airport is at 
least 3 miles. 

(d) No certificate holder may use any 

person, nor may any person serve, as 
pilot in command between terminals 
over a route or area that requires a 
special type of navigation qualification 
unless, within the preceding 12 cal-
endar months, that person has dem-
onstrated qualification on the applica-
ble navigation system in a manner ac-
ceptable to the Administrator, by one 
of the following methods: 

(1) By flying over a route or area as 

pilot in command using the applicable 
special type of navigation system. 

(2) By flying over a route or area as 

pilot in command under the super-
vision of a check airman using the spe-
cial type of navigation system. 

(3) By completing the training pro-

gram requirements of appendix G of 
this part. 

[Doc. No. 17897, 45 FR 41594, June 19, 1980] 

§ 121.447 [Reserved] 

§ 121.453 Flight engineer qualifica-

tions. 

(a) No certificate holder may use any 

person nor may any person serve as a 
flight engineer on an airplane unless, 
within the preceding 6 calendar 
months, he has had at least 50 hours of 
flight time as a flight engineer on that 
type airplane or the certificate holder 
or the Administrator has checked him 
on that type airplane and determined 
that he is familiar and competent with 
all essential current information and 
operating procedures. 

(b) A flight check given in accord-

ance with § 121.425(a)(2) satisfies the re-
quirements of paragraph (a) of this sec-
tion. 

[Doc. No. 9509, 35 FR 96, Jan. 3, 1970] 

§§ 121.455–121.459 [Reserved] 

Subpart P—Aircraft Dispatcher 

Qualifications and Duty Time 

Limitations: 

D

OMESTIC AND

F

LAG

O

PER

-

ATIONS

; F

LIGHT

A

TTENDANT

D

UTY

P

E

-

RIOD

L

IMITATIONS AND

R

EST

R

EQUIRE

-

MENTS

: D

OMESTIC

, F

LAG

AND

S

UPPLE

-

MENTAL

O

PERATIONS

 

§ 121.461 Applicability. 

This subpart prescribes— 
(a) Qualifications and duty time limi-

tations for aircraft dispatchers for cer-
tificate holders conducting domestic 
flag operations; and 

(b) Duty period limitations and rest 

requirements for flight attendants used 
by certificate holders conducting do-
mestic, flag, or supplemental oper-
ations. 

[Doc. No. 28154, 61 FR 2612, Jan. 26, 1996] 

§ 121.463 Aircraft dispatcher qualifica-

tions. 

(a) No certificate holder conducting 

domestic or flag operations may use 
any person, nor may any person serve, 
as an aircraft dispatcher for a par-
ticular airplane group unless that per-
son has, with respect to an airplane of 
that group, satisfactorily completed 
the following: 

(1) Initial dispatcher training, except 

that a person who has satisfactorily 
completed such training for another 
type airplane of the same group need 
only complete the appropriate transi-
tion training. 

(2) Operating familiarization con-

sisting of at least 5 hours observing op-
erations under this part from the flight 
deck or, for airplanes without an ob-
server seat on the flight deck, from a 
forward passenger seat with headset or 
speaker. This requirement may be re-
duced to a minimum of 2

1

2

hours by the 

substitution of one additional takeoff 
and landing for an hour of flight. A per-
son may serve as an aircraft dispatcher 
without meeting the requirement of 
this paragraph (a) for 90 days after ini-
tial introduction of the airplane into 
operations under this part. 

(b) No certificate holder conducting 

domestic or flag operations may use 
any person, nor may any person serve, 

background image

200 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.465 

as an aircraft dispatcher for a par-
ticular type airplane unless that per-
son has, with respect to that airplane, 
satisfactorily completed differences 
training, if applicable. 

(c) No certificate holder conducting 

domestic or flag operations may use 
any person, nor may any person serve, 
as an aircraft dispatcher unless within 
the preceding 12 calendar months the 
aircraft dispatcher has satisfactorily 
completed operating familiarization 
consisting of at least 5 hours observing 
operations under this part, in one of 
the types of airplanes in each group to 
be dispatched. This observation shall 
be made from the flight deck or, for 
airplanes without an observer seat on 
the flight deck, from a forward pas-
senger seat with headset or speaker. 
The requirement of paragraph (a) of 
this section may be reduced to a min-
imum of 2

1

2

hours by the substitution 

of one additional takeoff and landing 
for an hour of flight. The requirement 
of this paragraph may be satisfied by 
observation of 5 hours of simulator 
training for each airplane group in one 
of the simulators approved under 
§ 121.407 for the group. However, if the 
requirement of paragraph (a) is met by 
the use of a simulator, no reduction in 
hours is permitted. 

(d) No certificate holder conducting 

domestic or flag operations may use 
any person, nor may any person serve 
as an aircraft dispatcher to dispatch 
airplanes in operations under this part 
unless the certificate holder has deter-
mined that he is familiar with all es-
sential operating procedures for that 
segment of the operation over which he 
exercises dispatch jurisdiction. How-
ever, a dispatcher who is qualified to 
dispatch airplanes through one seg-
ment of an operation may dispatch air-
planes through other segments of the 
operation after coordinating with dis-
patchers who are qualified to dispatch 
airplanes through those other seg-
ments. 

(e) For the purposes of this section, 

the airplane groups, terms, and defini-
tions in § 121.400 apply. 

[Doc. No. 7325, 37 FR 5607, Mar. 17, 1972, as 
amended by Amdt. 121–251, 60 FR 65934, Dec. 
20, 1995] 

§ 121.465 Aircraft dispatcher duty time 

limitations: Domestic and flag oper-

ations. 

(a) Each certificate holder con-

ducting domestic or flag operations 
shall establish the daily duty period for 
a dispatcher so that it begins at a time 
that allows him or her to become thor-
oughly familiar with existing and an-
ticipated weather conditions along the 
route before he or she dispatches any 
airplane. He or she shall remain on 
duty until each airplane dispatched by 
him or her has completed its flight, or 
has gone beyond his or her jurisdiction, 
or until he or she is relieved by another 
qualified dispatcher. 

(b) Except in cases where cir-

cumstances or emergency conditions 
beyond the control of the certificate 
holder require otherwise— 

(1) No certificate holder conducting 

domestic or flag operations may sched-
ule a dispatcher for more than 10 con-
secutive hours of duty; 

(2) If a dispatcher is scheduled for 

more than 10 hours of duty in 24 con-
secutive hours, the certificate holder 
shall provide him or her a rest period 
of at least eight hours at or before the 
end of 10 hours of duty. 

(3) Each dispatcher must be relieved 

of all duty with the certificate holder 
for at least 24 consecutive hours during 
any seven consecutive days or the 
equivalent thereof within any calendar 
month. 

(c) Notwithstanding paragraphs (a) 

and (b) of this section, a certificate 
holder conducting flag operations may, 
if authorized by the Administrator, 
schedule an aircraft dispatcher at a 
duty station outside of the 48 contig-
uous States and the District of Colum-
bia, for more than 10 consecutive hours 
of duty in a 24-hour period if that air-
craft dispatcher is relieved of all duty 
with the certificate holder for at least 
eight hours during each 24-hour period. 

[Doc. No. 28154, 61 FR 2612, Jan. 26, 1996] 

§ 121.467 Flight attendant duty period 

limitations and rest requirements: 

Domestic, flag, and supplemental 

operations. 

(a) For purposes of this section— 

Calendar day 

means the period of 

elapsed time, using Coordinated Uni-
versal Time or local time, that begins 

background image

201 

Federal Aviation Administration, DOT 

§ 121.467 

at midnight and ends 24 hours later at 
the next midnight. 

Duty period 

means the period of 

elapsed time between reporting for an 
assignment involving flight time and 
release from that assignment by the 
certificate holder conducting domestic, 
flag, or supplemental operations. The 
time is calculated using either Coordi-
nated Universal Time or local time to 
reflect the total elapsed time. 

Flight attendant 

means an individual, 

other than a flight crewmember, who is 
assigned by a certificate holder con-
ducting domestic, flag, or supple-
mental operations, in accordance with 
the required minimum crew com-
plement under the certificate holder’s 
operations specifications or in addition 
to that minimum complement, to duty 
in an aircraft during flight time and 
whose duties include but are not nec-
essarily limited to cabin-safety-related 
responsibilities. 

Rest period 

means the period free of 

all restraint or duty for a certificate 
holder conducting domestic, flag, or 
supplemental operations and free of all 
responsibility for work or duty should 
the occasion arise. 

(b) Except as provided in paragraph 

(c) of this section, a certificate holder 
conducting domestic, flag, or supple-
mental operations may assign a duty 
period to a flight attendant only when 
the applicable duty period limitations 
and rest requirements of this para-
graph are met. 

(1) Except as provided in paragraphs 

(b)(4), (b)(5), and (b)(6) of this section, 
no certificate holder conducting do-
mestic, flag, or supplemental oper-
ations may assign a flight attendant to 
a scheduled duty period of more than 14 
hours. 

(2) A flight attendant scheduled to a 

duty period of 14 hours or less as pro-
vided under paragraph (b)(1) of this sec-
tion must be given a scheduled rest pe-
riod of at least 10 consecutive hours. 
This rest period must occur between 
the completion of the scheduled duty 
period and the commencement of the 
subsequent duty period. 

(3) The rest period required under 

paragraph (b)(2) of this section may not 
be reduced to less than 10 consecutive 
hours. 

(4) A certificate holder conducting 

domestic, flag, or supplemental oper-
ations may assign a flight attendant to 
a scheduled duty period of more than 14 
hours, but no more than 16 hours, if the 
certificate holder has assigned to the 
flight or flights in that duty period at 
least one flight attendant in addition 
to the minimum flight attendant com-
plement required for the flight or 
flights in that duty period under the 
certificate holder’s operations speci-
fications. 

(5) A certificate holder conducting 

domestic, flag, or supplemental oper-
ations may assign a flight attendant to 
a scheduled duty period of more than 16 
hours, but no more than 18 hours, if the 
certificate holder has assigned to the 
flight or flights in that duty period at 
least two flight attendants in addition 
to the minimum flight attendant com-
plement required for the flight or 
flights in that duty period under the 
certificate holder’s operations speci-
fications. 

(6) A certificate holder conducting 

domestic, flag, or supplemental oper-
ations may assign a flight attendant to 
a scheduled duty period of more than 18 
hours, but no more than 20 hours, if the 
scheduled duty period includes one or 
more flights that land or take off out-
side the 48 contiguous states and the 
District of Columbia, and if the certifi-
cate holder has assigned to the flight 
or flights in that duty period at least 
three flight attendants in addition to 
the minimum flight attendant com-
plement required for the flight or 
flights in that duty period under the 
domestic certificate holder’s oper-
ations specifications. 

(7) Except as provided in paragraph 

(b)(8) of this section, a flight attendant 
scheduled to a duty period of more 
than 14 hours but no more than 20 
hours, as provided in paragraphs (b)(4), 
(b)(5), and (b)(6) of this section, must be 
given a scheduled rest period of at least 
12 consecutive hours. This rest period 
must occur between the completion of 
the scheduled duty period and the com-
mencement of the subsequent duty pe-
riod. 

(8) The rest period required under 

paragraph (b)(7) of this section may be 
scheduled or reduced to 10 consecutive 

background image

202 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.467 

hours if the flight attendant is pro-
vided a subsequent rest period of at 
least 14 consecutive hours; this subse-
quent rest period must be scheduled to 
begin no later than 24 hours after the 
beginning of the reduced rest period 
and must occur between the comple-
tion of the scheduled duty period and 
the commencement of the subsequent 
duty period. 

(9) Notwithstanding paragraphs 

(b)(4), (b)(5), and (b)(6) of this section, if 
a certificate holder conducting domes-
tic, flag, or supplemental operations 
elects to reduce the rest period to 10 
hours as authorized by paragraph (b)(8) 
of this section, the certificate holder 
may not schedule a flight attendant for 
a duty period of more than 14 hours 
during the 24-hour period commencing 
after the beginning of the reduced rest 
period. 

(10) No certificate holder conducting 

domestic, flag, or supplemental oper-
ations may assign a flight attendant 
any duty period with the certificate 
holder unless the flight attendant has 
had at least the minimum rest required 
under this section. 

(11) No certificate holder conducting 

domestic, flag, or supplemental oper-
ations may assign a flight attendant to 
perform any duty with the certificate 
holder during any required rest period. 

(12) Time spent in transportation, 

not local in character, that a certifi-
cate holder conducting domestic, flag, 
or supplemental operations requires of 
a flight attendant and provides to 
transport the flight attendant to an 
airport at which that flight attendant 
is to serve on a flight as a crew-
member, or from an airport at which 
the flight attendant was relieved from 
duty to return to the flight attendant’s 
home station, is not considered part of 
a rest period. 

(13) Each certificate holder con-

ducting domestic, flag, or supple-
mental operations must relieve each 
flight attendant engaged in air trans-
portation and each commercial oper-
ator must relieve each flight attendant 
engaged in air commerce from all fur-
ther duty for at least 24 consecutive 
hours during any 7 consecutive cal-
endar days. 

(14) A flight attendant is not consid-

ered to be scheduled for duty in excess 

of duty period limitations if the flights 
to which the flight attendant is as-
signed are scheduled and normally ter-
minate within the limitations but due 
to circumstances beyond the control of 
the certificate holder conducting do-
mestic, flag, or supplemental oper-
ations (such as adverse weather condi-
tions) are not at the time of departure 
expected to reach their destination 
within the scheduled time. 

(c) Notwithstanding paragraph (b) of 

this section, a certificate holder con-
ducting domestic, flag, or supple-
mental operations may apply the 
flightcrew member flight time and 
duty limitations and rest requirements 
of part 117 of this chapter to flight at-
tendants for all operations conducted 
under this part provided that— 

(1) The certificate holder establishes 

written procedures that— 

(i) Apply to all flight attendants used 

in the certificate holder’s operation; 

(ii) Include the flightcrew member 

requirements contained in part 117, as 
appropriate to the operation being con-
ducted, except that rest facilities on 
board the aircraft are not required; 

(iii) Include provisions to add one 

flight attendant to the minimum flight 
attendant complement for each 
flightcrew member who is in excess of 
the minimum number required in the 
aircraft type certificate data sheet and 
who is assigned to the aircraft under 
the provisions of part 117, as applica-
ble, of this part; 

(iv) Are approved by the Adminis-

trator and are described or referenced 
in the certificate holder’s operations 
specifications; and 

(2) Whenever the Administrator finds 

that revisions are necessary for the 
continued adequacy of the written pro-
cedures that are required by paragraph 
(c)(1) of this section and that had been 
granted final approval, the certificate 
holder must, after notification by the 
Administrator, make any changes in 
the procedures that are found nec-
essary by the Administrator. Within 30 
days after the certificate holder re-
ceives such notice, it may file a peti-
tion to reconsider the notice with the 
responsible Flight Standards office. 
The filing of a petition to reconsider 
stays the notice, pending decision by 

background image

203 

Federal Aviation Administration, DOT 

§ 121.471 

the Administrator. However, if the Ad-
ministrator finds that an emergency 
requires immediate action in the inter-
est of safety, the Administrator may, 
upon a statement of the reasons, re-
quire a change effective without stay. 

[Amdt. 121–241, 59 FR 42991, Aug. 19, 1994, as 
amended by Amdt. 121–253, 61 FR 2612, Jan. 
26, 1996; Amdt. 121–357, 77 FR 402, Jan. 4, 2012; 
Amdt. 121–357A, 77 FR 28764, May 16, 2012; 
Docket FAA–2018–0119, Amdt. 121–380, 83 FR 
9172, Mar. 5, 2018; Amdt. 121–386, 87 FR 61465, 
Oct. 12, 2022] 

Subpart Q—Flight Time Limitations 

and Rest Requirements: Do-
mestic Operations 

S

OURCE

: Docket No. 23634, 50 FR 29319, July 

18, 1985, unless otherwise noted. 

§ 121.470 Applicability. 

This subpart prescribes flight time 

limitations and rest requirements for 
domestic all-cargo operations, except 
that: 

(a) Certificate holders conducting op-

erations with aircraft having a pas-
senger seat configuration of 30 seats or 
fewer, excluding each crewmember 
seat, and a payload capacity of 7,500 
pounds or less, may comply with the 
applicable requirements of §§ 135.261 
through 135.273 of this chapter. 

(b) Certificate holders conducting 

scheduled operations entirely within 
the States of Alaska or Hawaii with 
aircraft having a passenger seat con-
figuration of more than 30 seats, ex-
cluding each crewmember seat, or a 
payload capacity of more than 7,500 
pounds, may comply with the require-
ments of this subpart or subpart R of 
this part for those operations. 

(c) A certificate holder may apply 

the flightcrew member flight time and 
duty limitations and requirements of 
part 117 of this chapter. A certificate 
holder may choose to apply part 117 to 
its— 

(1) Cargo operations conducted under 

contract to a U.S. government agency. 

(2) All-cargo operations not con-

ducted under contract to a U.S. Gov-
ernment agency, 

(3) A certificate holder may elect to 

treat operations in paragraphs (c)(1) 
and (c)(2) of this section differently 
but, once having decided to conduct 

those operations under part 117, may 
not segregate those operations between 
this subpart and part 117. 

[Doc. No. FAA–2009–1093, 77 FR 402, Jan. 4, 
2012; Amdt. 121–357, 78 FR 69288, Nov. 19, 2013, 
as amended by Docket No. FAA–2022–1563; 
Amdt. No. 121–390, 88 FR 48090, July 26, 2023] 

§ 121.471 Flight time limitations and 

rest requirements: All flight crew-

members. 

(a) No certificate holder conducting 

domestic operations may schedule any 
flight crewmember and no flight crew-
member may accept an assignment for 
flight time in scheduled air transpor-
tation or in other commercial flying if 
that crewmember’s total flight time in 
all commercial flying will exceed— 

(1) 1,000 hours in any calendar year; 
(2) 100 hours in any calendar month; 
(3) 30 hours in any 7 consecutive days; 
(4) 8 hours between required rest peri-

ods. 

(b) Except as provided in paragraph 

(c) of this section, no certificate holder 
conducting domestic operations may 
schedule a flight crewmember and no 
flight crewmember may accept an as-
signment for flight time during the 24 
consecutive hours preceding the sched-
uled completion of any flight segment 
without a scheduled rest period during 
that 24 hours of at least the following: 

(1) 9 consecutive hours of rest for less 

than 8 hours of scheduled flight time. 

(2) 10 consecutive hours of rest for 8 

or more but less than 9 hours of sched-
uled flight time. 

(3) 11 consecutive hours of rest for 9 

or more hours of scheduled flight time. 

(c) A certificate holder may schedule 

a flight crewmember for less than the 
rest required in paragraph (b) of this 
section or may reduce a scheduled rest 
under the following conditions: 

(1) A rest required under paragraph 

(b)(1) of this section may be scheduled 
for or reduced to a minimum of 8 hours 
if the flight crewmember is given a rest 
period of at least 10 hours that must 
begin no later than 24 hours after the 
commencement of the reduced rest pe-
riod. 

(2) A rest required under paragraph 

(b)(2) of this section may be scheduled 
for or reduced to a minimum of 8 hours 
if the flight crewmember is given a rest 
period of at least 11 hours that must 

background image

204 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.473 

begin no later than 24 hours after the 
commencement of the reduced rest pe-
riod. 

(3) A rest required under paragraph 

(b)(3) of this section may be scheduled 
for or reduced to a minimum of 9 hours 
if the flight crewmember is given a rest 
period of at least 12 hours that must 
begin no later than 24 hours after the 
commencement of the reduced rest pe-
riod. 

(4) No certificate holder may assign, 

nor may any flight crewmember per-
form any flight time with the certifi-
cate holder unless the flight crew-
member has had at least the minimum 
rest required under this paragraph. 

(d) Each certificate holder con-

ducting domestic operations shall re-
lieve each flight crewmember engaged 
in scheduled air transportation from 
all further duty for at least 24 consecu-
tive hours during any 7 consecutive 
days. 

(e) No certificate holder conducting 

domestic operations may assign any 
flight crewmember and no flight crew-
member may accept assignment to any 
duty with the air carrier during any re-
quired rest period. 

(f) Time spent in transportation, not 

local in character, that a certificate 
holder requires of a flight crewmember 
and provides to transport the crew-
member to an airport at which he is to 
serve on a flight as a crewmember, or 
from an airport at which he was re-
lieved from duty to return to his home 
station, is not considered part of a rest 
period. 

(g) A flight crewmember is not con-

sidered to be scheduled for flight time 
in excess of flight time limitations if 
the flights to which he is assigned are 
scheduled and normally terminate 
within the limitations, but due to cir-
cumstances beyond the control of the 
certificate holder (such as adverse 
weather conditions), are not at the 
time of departure expected to reach 
their destination within the scheduled 
time. 

[Doc. No. 23634, 50 FR 29319, July 18, 1985, as 
amended by Amdt. 121–253, 61 FR 2612, Jan. 
26, 1996] 

§ 121.473 Fatigue risk management 

system. 

(a) No certificate holder may exceed 

any provision of this subpart unless ap-
proved by the FAA under a Fatigue 
Risk Management System. 

(b) The Fatigue Risk Management 

System must include: 

(1) A fatigue risk management pol-

icy. 

(2) An education and awareness train-

ing program. 

(3) A fatigue reporting system. 
(4) A system for monitoring 

flightcrew fatigue. 

(5) An incident reporting process. 
(6) A performance evaluation. 

[Doc. No. FAA–2009–1093, 77 FR 403, Jan. 4, 
2012] 

Subpart R—Flight Time Limitations: 

Flag Operations 

S

OURCE

: Docket No. 6258, 29 FR 19217, Dec. 

31, 1964; 30 FR 3639, Mar. 19, 1965, unless oth-
erwise noted. 

§ 121.480 Applicability. 

This subpart prescribes flight time 

limitations and rest requirements for 
flag all-cargo operations, except that: 

(a) Certificate holders conducting op-

erations with aircraft having a pas-
senger seat configuration of 30 seats or 
fewer, excluding each crewmember 
seat, and a payload capacity of 7,500 
pounds or less, may comply with the 
applicable requirements of §§ 135.261 
through 135.273 of this chapter. 

(b) A certificate holder may apply 

the flightcrew member flight time and 
duty limitations and requirements of 
part 117 of this chapter. A certificate 
holder may choose to apply part 117 to 
its— 

(1) All-cargo operations conducted 

under contract to a U.S. government 
agency. 

(2) All-cargo operations not con-

ducted under contract to a U.S. Gov-
ernment agency, 

(3) A certificate holder may elect to 

treat operations in paragraphs (b)(1) 
and (b) (2) of this section differently 
but, once having decided to conduct 
those operations under part 117, may 

background image

205 

Federal Aviation Administration, DOT 

§ 121.485 

not segregate those operations between 
this subpart and part 117. 

[Doc. No. FAA–2009–1093, 77 FR 403, Jan. 4, 
2012, as amended by Docket No. FAA–2022– 
1563; Amdt. No. 121–390, 88 FR 48090, July 26, 
2023] 

§ 121.481 Flight time limitations: One 

or two pilot crews. 

(a) A certificate holder conducting 

flag operations may schedule a pilot to 
fly in an airplane that has a crew of 
one or two pilots for eight hours or less 
during any 24 consecutive hours with-
out a rest period during these eight 
hours. 

(b) If a certificate holder conducting 

flag operations schedules a pilot to fly 
more than eight hours during any 24 
consecutive hours, it shall give him an 
intervening rest period, at or before 
the end of eight scheduled hours of 
flight duty. This rest period must be at 
least twice the number of hours flown 
since the preceding rest period, but not 
less than eight hours. The certificate 
holder shall relieve that pilot of all 
duty with it during that rest period. 

(c) Each pilot who has flown more 

than eight hours during 24 consecutive 
hours must be given at least 18 hours of 
rest before being assigned to any duty 
with the certificate holder. 

(d) No pilot may fly more than 32 

hours during any seven consecutive 
days, and each pilot must be relieved 
from all duty for at least 24 consecu-
tive hours at least once during any 
seven consecutive days. 

(e) No pilot may fly as a member of 

a crew more than 100 hours during any 
one calendar month. 

(f) No pilot may fly as a member of a 

crew more than 1,000 hours during any 
12-calendar-month period. 

[Doc. No. 6258, 29 FR 19217, Dec. 31, 1964; 30 
FR 3639, Mar. 19, 1965, as amended by Amdt. 
121–253, 61 FR 2612, Jan. 26, 1996] 

§ 121.483 Flight time limitations: Two 

pilots and one additional flight 

crewmember. 

(a) No certificate holder conducting 

flag operations may schedule a pilot to 
fly, in an airplane that has a crew of 
two pilots and at least one additional 
flight crewmember, for a total of more 
than 12 hours during any 24 consecutive 
hours. 

(b) If a pilot has flown 20 or more 

hours during any 48 consecutive hours 
or 24 or more hours during any 72 con-
secutive hours, he must be given at 
least 18 hours of rest before being as-
signed to any duty with the air carrier. 
In any case, he must be given at least 
24 consecutive hours of rest during any 
seven consecutive days. 

(c) No pilot may fly as a flight crew-

member more than— 

(1) 120 hours during any 30 consecu-

tive days; 

(2) 300 hours during any 90 consecu-

tive days; or 

(3) 1,000 hours during any 12-calendar- 

month period. 

[Doc. No. 6258, 29 FR 19217, Dec. 31, 1964; 30 
FR 3639, Mar. 19, 1965, as amended by Amdt. 
121–253, 61 FR 2612, Jan. 26, 1996] 

§ 121.485 Flight time limitations: Three 

or more pilots and an additional 
flight crewmember. 

(a) Each certificate holder con-

ducting flag operations shall schedule 
its flight hours to provide adequate 
rest periods on the ground for each 
pilot who is away from his base and 
who is a pilot on an airplane that has 
a crew of three or more pilots and an 
additional flight crewmember. It shall 
also provide adequate sleeping quarters 
on the airplane whenever a pilot is 
scheduled to fly more than 12 hours 
during any 24 consecutive hours. 

(b) The certificate holder conducting 

flag operations shall give each pilot, 
upon return to his base from any flight 
or series of flights, a rest period that is 
at least twice the total number of 
hours he flew since the last rest period 
at his base. During the rest period re-
quired by this paragraph, the air car-
rier may not require him to perform 
any duty for it. If the required rest pe-
riod is more than seven days, that part 
of the rest period in excess of seven 
days may be given at any time before 
the pilot is again scheduled for flight 
duty on any route. 

(c) No pilot may fly as a flight crew-

member more than— 

(1) 350 hours during any 90 consecu-

tive days; or 

background image

206 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.487 

(2) 1,000 hours during any 12-calendar- 

month period. 

[Doc. No. 6258, 29 FR 19217, Dec. 31, 1964; 30 
FR 3639, Mar. 19, 1965, as amended by Amdt. 
121–253, 61 FR 2612, Jan. 26, 1996] 

§ 121.487 Flight time limitations: Pilots 

not regularly assigned. 

(a) Except as provided in paragraphs 

(b) through (e) of this section, a pilot 
who is not regularly assigned as a 
flight crewmember for an entire cal-
endar month under § 121.483 or 121.485 
may not fly more than 100 hours in any 
30 consecutive days. 

(b) The monthly flight time limita-

tions for a pilot who is scheduled for 
duty aloft for more than 20 hours in 
two-pilot crews in any calendar month, 
or whose assignment in such a crew is 
interrupted more than once in that cal-
endar month by assignment to a crew 
consisting of two or more pilots and an 
additional flight crewmember, are 
those set forth in § 121.481. 

(c) Except for a pilot covered by para-

graph (b) of this section, the monthly 
and quarterly flight time limitations 
for a pilot who is scheduled for duty 
aloft for more than 20 hours in two- 
pilot and additional flight crewmember 
crews in any calendar month, or whose 
assignment in such a crew is inter-
rupted more than once in that calendar 
month by assignment to a crew con-
sisting of three pilots and additional 
flight crewmember, are those set forth 
in § 121.483. 

(d) The quarterly flight time limita-

tions for a pilot to whom paragraphs 
(b) and (c) of this section do not apply 
and who is scheduled for duty aloft for 
a total of not more than 20 hours with-
in any calendar month in two-pilot 
crews (with or without additional 
flight crewmembers) are those set forth 
in § 121.485. 

(e) The monthly and quarterly flight 

time limitations for a pilot assigned to 
each of two-pilot, two-pilot and addi-
tional flight crewmember, and three- 
pilot and additional flight crewmember 
crews in a given calendar month, and 
who is not subject to paragraph (b), (c), 

or (d) of this section, are those set 
forth in § 121.483. 

[Doc. No. 6258, 29 FR 19217, Dec. 31, 1964; 
Amdt. 121–3, 30 FR 3639, Mar. 19, 1965, as 
amended by Amdt. 121–137, 42 FR 43973, Sept. 
1, 1977] 

§ 121.489 Flight time limitations: Other 

commercial flying. 

No pilot that is employed as a pilot 

by a certificate holder conducting flag 
operations may do any other commer-
cial flying if that commercial flying 
plus his flying in air transportation 
will exceed any flight time limitation 
in this part. 

[Doc. No. 28154, 61 FR 2612, Jan. 26, 1996] 

§ 121.491 Flight time limitations: 

Deadhead transportation. 

Time spent in deadhead transpor-

tation to or from duty assignment is 
not considered to be a part of a rest pe-
riod. 

§ 121.493 Flight time limitations: 

Flight engineers and flight naviga-

tors. 

(a) In any operation in which one 

flight engineer or flight navigator is 
required, the flight time limitations in 
§ 121.483 apply to that flight engineer or 
flight navigator. 

(b) In any operation in which more 

than one flight engineer or flight navi-
gator is required, the flight time limi-
tations in § 121.485 apply to those flight 
engineers or flight navigators. 

§ 121.495 Fatigue risk management 

system. 

(a) No certificate holder may exceed 

any provision of this subpart unless ap-
proved by the FAA under a Fatigue 
Risk Management System. 

(b) The Fatigue Risk Management 

System must include: 

(1) A fatigue risk management pol-

icy. 

(2) An education and awareness train-

ing program. 

(3) A fatigue reporting system. 
(4) A system for monitoring 

flightcrew fatigue. 

(5) An incident reporting process. 
(6) A performance evaluation. 

[Doc. No. FAA–2009–1093, 77 FR 403, Jan. 4, 
2012] 

background image

207 

Federal Aviation Administration, DOT 

§ 121.505 

Subpart S—Flight Time Limitations: 

Supplemental Operations 

S

OURCE

: Docket No. 6258, 29 FR 19218, Dec. 

31, 1964; 30 FR 3639, Mar. 19, 1965, unless oth-
erwise noted. 

§ 121.500 Applicability. 

This subpart prescribes flight time 

limitations and rest requirements for 
supplemental all-cargo operations, ex-
cept that: 

(a) Certificate holders conducting op-

erations with aircraft having a pas-
senger seat configuration of 30 seats or 
fewer, excluding each crewmember 
seat, and a payload capacity of 7,500 
pound or less, may comply with the ap-
plicable requirements of §§ 135.261 
through 135.273 of this chapter. 

(b) A certificate holder may apply 

the flightcrew member flight time and 
duty limitations and requirements of 
part 117 of this chapter. A certificate 
holder may choose to apply part 117 to 
its— 

(1) All-cargo operations conducted 

under contract to a U.S. Government 
agency. 

(2) All-cargo operations not con-

ducted under contract to a U.S. Gov-
ernment agency, 

(3) A certificate holder may elect to 

treat operations in paragraphs (b)(1) 
and (b)(2) of this section differently 
but, once having decided to conduct 
those operations under part 117, may 
not segregate those operations between 
this subpart and part 117. 

[Doc. No. FAA–2009–1093, 77 FR 403, Jan. 4, 
2012, as amended by Docket No. FAA–2022– 
1563; Amdt. No. 121–390, 88 FR 48090, July 26, 
2023] 

§ 121.503 Flight time limitations: Pi-

lots: airplanes. 

(a) A certificate holder conducting 

supplemental operations may schedule 
a pilot to fly in an airplane for eight 
hours or less during any 24 consecutive 
hours without a rest period during 
those eight hours. 

(b) Each pilot who has flown more 

than eight hours during any 24 con-
secutive hours must be given at least 
16 hours of rest before being assigned 
to any duty with the certificate holder. 

(c) Each certificate holder con-

ducting supplemental operations shall 

relieve each pilot from all duty for at 
least 24 consecutive hours at least once 
during any seven consecutive days. 

(d) No pilot may fly as a crewmember 

in air transportation more than 100 
hours during any 30 consecutive days. 

(e) No pilot may fly as a crewmember 

in air transportation more than 1,000 
hours during any calendar year. 

(f) Notwithstanding paragraph (a) of 

this section, the certificate holder 
may, in conducting a transcontinental 
nonstop flight, schedule a flight crew-
member for more than eight but not 
more than 10 hours of continuous duty 
aloft without an intervening rest pe-
riod, if— 

(1) The flight is in an airplane with a 

pressurization system that is operative 
at the beginning of the flight; 

(2) The flight crew consists of at least 

two pilots and a flight engineer; and 

(3) The certificate holder uses, in 

conducting the operation, an air/ 
ground communication service that is 
independent of systems operated by the 
United States, and a dispatch organiza-
tion, both of which are approved by the 
Administrator as adequate to serve the 
terminal points concerned. 

[Doc. No. 6258, 29 FR 19218, Dec. 31, 1964; 30 
FR 3639, Mar. 19, 1965, as amended by Amdt. 
121–253, 61 FR 2613, Jan. 26, 1996] 

§ 121.505 Flight time limitations: Two 

pilot crews: airplanes. 

(a) If a certificate holder conducting 

supplemental operations schedules a 
pilot to fly more than eight hours dur-
ing any 24 consecutive hours, it shall 
give him an intervening rest period at 
or before the end of eight scheduled 
hours of flight duty. This rest period 
must be at least twice the number of 
hours flown since the preceding rest pe-
riod, but not less than eight hours. The 
certificate holder conducting supple-
mental operations shall relieve that 
pilot of all duty with it during that 
rest period. 

(b) No pilot of an airplane that has a 

crew of two pilots may be on duty for 
more than 16 hours during any 24 con-
secutive hours. 

[Doc. No. 6258, 29 FR 19218, Dec. 31, 1964; 30 
FR 3639, Mar. 19, 1965, as amended by Amdt. 
121–253, 61 FR 2613, Jan. 26, 1996] 

background image

208 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.507 

§ 121.507 Flight time limitations: Three 

pilot crews: airplanes. 

(a) No certificate holder conducting 

supplemental operations may schedule 
a pilot— 

(1) For flight deck duty in an air-

plane that has a crew of three pilots for 
more than eight hours in any 24 con-
secutive hours; or 

(2) To be aloft in an airplane that has 

a crew of three pilot for more than 12 
hours in any 24 consecutive hours. 

(b) No pilot of an airplane that has a 

crew of three pilots may be on duty for 
more than 18 hours in any 24 consecu-
tive hours. 

[Doc. No. 6258, 29 FR 19218, Dec. 31, 1964; 30 
FR 3639, Mar. 19, 1965, as amended by Amdt. 
121–253, 61 FR 2613, Jan. 26, 1996] 

§ 121.509 Flight time limitations: Four 

pilot crews: airplanes. 

(a) No certificate holder conducting 

supplemental operations may schedule 
a pilot— 

(1) For flight deck duty in an air-

plane that has a crew of four pilots for 
more than eight hours in any 24 con-
secutive hours; or 

(2) To be aloft in an airplane that has 

a crew of four pilots for more than 16 
hours in any 24 consecutive hours. 

(b) No pilot of an airplane that has a 

crew of four pilots may be on duty for 
more than 20 hours in any 24 consecu-
tive hours. 

[Doc. No. 6258, 29 FR 19218, Dec. 31, 1964; 30 
FR 3639, Mar. 19, 1965, as amended by Amdt. 
121–253, 61 FR 2613, Jan. 26, 1996] 

§ 121.511 Flight time limitations: 

Flight engineers: airplanes. 

(a) In any operation in which one 

flight engineer is serving the flight 
time limitations in §§ 121.503 and 121.505 
apply to that flight engineer. 

(b) In any operation in which more 

than one flight engineer is serving and 
the flight crew contains more than two 
pilots the flight time limitations in 
§ 121.509 apply in place of those in 
§ 121.505. 

§ 121.513 Flight time limitations: Over-

seas and international operations: 

airplanes. 

In place of the flight time limita-

tions in §§ 121.503 through 121.511, a cer-
tificate holder conducting supple-

mental operations may elect to comply 
with the flight time limitations of 
§§ 121.515 and 121.521 through 121.525 for 
operations conducted— 

(a) Between a place in the 48 contig-

uous States and the District of Colum-
bia, or Alaska, and any place outside 
thereof; 

(b) Between any two places outside 

the 48 contiguous States, the District 
of Columbia, and Alaska; or 

(c) Between two places within the 

State of Alaska or the State of Hawaii. 

[Doc. No. 6258, 29 FR 19218, Dec. 31, 1964; 30 
FR 3639, Mar. 19, 1965, as amended by Amdt. 
121–253, 61 FR 2613, Jan. 26, 1996] 

§ 121.515 Flight time limitations: All 

airmen: airplanes. 

No airman may be aloft as a flight 

crewmember more than 1,000 hours in 
any 12-calendar-month period. 

§ 121.517 Flight time limitations: Other 

commercial flying: airplanes. 

No airman who is employed by a cer-

tificate holder conducting supple-
mental operations may do any other 
commercial flying, if that commercial 
flying plus his flying in operations 
under this part will exceed any flight 
time limitation in this part. 

[Doc. No. 28154, 61 FR 2613, Jan. 26, 1996] 

§ 121.519 Flight time limitations: 

Deadhead transportation: airplanes. 

Time spent by an airman in deadhead 

transportation to or from a duty as-
signment is not considered to be part 
of any rest period. 

§ 121.521 Flight time limitations: Crew 

of two pilots and one additional air-

man as required. 

(a) No certificate holder conducting 

supplemental operations may schedule 
an airman to be aloft as a member of 
the flight crew in an airplane that has 
a crew of two pilots and at least one 
additional flight crewmember for more 
than 12 hours during any 24 consecutive 
hours. 

(b) If an airman has been aloft as a 

member of a flight crew for 20 or more 
hours during any 48 consecutive hours 
or 24 or more hours during any 72 con-
secutive hours, he must be given at 
least 18 hours of rest before being as-
signed to any duty with the certificate 

background image

209 

Federal Aviation Administration, DOT 

§ 121.525 

holder. In any case, he must be relieved 
of all duty for at least 24 consecutive 
hours during any seven consecutive 
days. 

(c) No airman may be aloft as a flight 

crewmember more than— 

(1) 120 hours during any 30 consecu-

tive days; or 

(2) 300 hours during any 90 consecu-

tive days. 

[Doc. No. 6258, 29 FR 19218, Dec. 31, 1964, as 
amended by Amdt. 121–17, 31 FR 1147, Jan. 28, 
1966; Amdt. 121–253, 61 FR 2613, Jan. 26, 1996] 

§ 121.523 Flight time limitations: Crew 

of three or more pilots and addi-

tional airmen as required. 

(a) No certificate holder conducting 

supplemental operations may schedule 
an airman for flight deck duty as a 
flight engineer, or navigator in a crew 
of three or more pilots and additional 
airmen for a total of more than 12 
hours during any 24 consecutive hours. 

(b) Each certificate holder con-

ducting supplemental operations shall 
schedule its flight hours to provide 
adequate rest periods on the ground for 
each airman who is away from his prin-
cipal operations base. It shall also pro-
vide adequate sleeping quarters on the 
airplane whenever an airman is sched-
uled to be aloft as a flight crewmember 
for more than 12 hours during any 24 
consecutive hours. 

(c) No certificate holder conducting 

supplemental operations may schedule 
any flight crewmember to be on contin-
uous duty for more than 30 hours. Such 
a crewmember is considered to be on 
continuous duty from the time he re-
ports for duty until the time he is re-
leased from duty for a rest period of at 
least 10 hours on the ground. If a flight 
crewmember is on continuous duty for 
more than 24 hours (whether scheduled 
or not) during any scheduled duty pe-
riod, he must be given at least 16 hours 
for rest on the ground after completing 
the last flight scheduled for that sched-
uled duty period before being assigned 
any further flight duty. 

(d) If a flight crewmember is required 

to engage in deadhead transportation 
for more than four hours before begin-
ning flight duty, one half of the time 
spent in deadhead transportation must 
be treated as duty time for the purpose 
of complying with duty time limita-

tions, unless he is given at least 10 
hours of rest on the ground before 
being assigned to flight duty. 

(e) Each certificate holder con-

ducting supplemental operations shall 
give each airman, upon return to his 
operations base from any flight or se-
ries of flights, a rest period that is at 
least twice the total number of hours 
he was aloft as a flight crewmember 
since the last rest period at his base, 
before assigning him to any further 
duty. If the required rest period is 
more than seven days, that part of the 
rest period that is more than seven 
days may be given at any time before 
the pilot is again scheduled for flight 
duty. 

(f) No airman may be aloft as a flight 

crewmember for more than 350 hours in 
any 90 consecutive days. 

[Doc. No. 6258, 29 FR 19218, Dec. 31, 1964; 30 
FR 3639, Mar. 19, 1965, as amended by Amdt. 
121–253, 61 FR 2613, Jan. 26, 1996; Amdt. 121– 
387, 87 FR 75846, Dec. 9, 2022] 

§ 121.525 Flight time limitations: Pilots 

serving in more than one kind of 

flight crew. 

(a) This section applies to each pilot 

assigned during any 30 consecutive 
days to more than one type of flight 
crew. 

(b) The flight time limitations for a 

pilot who is scheduled for duty aloft for 
more than 20 hours in two-pilot crews 
in 30 consecutive days, or whose assign-
ment in such a crew is interrupted 
more than once in any 30 consecutive 
days by assignment to a crew of two or 
more pilots and an additional flight 
crewmember, are those listed in 
§§ 121.503 through 121.509, as appro-
priate. 

(c) Except for a pilot covered by para-

graph (b) of this section, the flight 
time limitations for a pilot scheduled 
for duty aloft for more than 20 hours in 
two-pilot and additional flight crew-
member crews in 30 consecutive days or 
whose assignment in such a crew is in-
terrupted more than once in any 30 
consecutive days by assignment to a 
crew consisting of three pilots and an 
additional flight crewmember, are 
those set forth in § 121.521. 

(d) The flight time limitations for a 

pilot to whom paragraphs (b) and (c) of 
this section do not apply, and who is 

background image

210 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.527 

scheduled for duty aloft for a total of 
not more than 20 hours within 30 con-
secutive days in two-pilot crews (with 
or without additional flight crew-
members) are those set forth in 
§ 121.523. 

(e) The flight time limitations for a 

pilot assigned to each of two-pilot, 
two-pilot and additional flight crew-
member, and three-pilot and additional 
flight crewmember crews in 30 consecu-
tive days, and who is not subject to 
paragraph (b), (c), or (d) of this section, 
are those listed in § 121.523. 

§ 121.527 Fatigue risk management 

system. 

(a) No certificate holder may exceed 

any provision of this subpart unless ap-
proved by the FAA under a Fatigue 
Risk Management System. 

(b) The Fatigue Risk Management 

System must include: 

(1) A fatigue risk management pol-

icy. 

(2) An education and awareness train-

ing program. 

(3) A fatigue reporting system. 
(4) A system for monitoring 

flightcrew fatigue. 

(5) An incident reporting process. 
(6) A performance evaluation. 

[Doc. No. FAA–2009–1093, 77 FR 403, Jan. 4, 
2012] 

Subpart T—Flight Operations 

S

OURCE

: Docket No. 6258, 29 FR 19219, Dec. 

31, 1964, unless otherwise noted. 

§ 121.531 Applicability. 

This subpart prescribes requirements 

for flight operations applicable to all 
certificate holders, except where other-
wise specified. 

§ 121.533 Responsibility for oper-

ational control: Domestic oper-

ations. 

(a) Each certificate holder con-

ducting domestic operations is respon-
sible for operational control. 

(b) The pilot in command and the air-

craft dispatcher are jointly responsible 
for the preflight planning, delay, and 
dispatch release of a flight in compli-
ance with this chapter and operations 
specifications. 

(c) The aircraft dispatcher is respon-

sible for— 

(1) Monitoring the progress of each 

flight; 

(2) Issuing necessary information for 

the safety of the flight; and 

(3) Cancelling or redispatching a 

flight if, in his opinion or the opinion 
of the pilot in command, the flight can-
not operate or continue to operate 
safely as planned or released. 

(d) Each pilot in command of an air-

craft is, during flight time, in com-
mand of the aircraft and crew and is re-
sponsible for the safety of the pas-
sengers, crewmembers, cargo, and air-
plane. 

(e) Each pilot in command has full 

control and authority in the operation 
of the aircraft, without limitation, 
over other crewmembers and their du-
ties during flight time, whether or not 
he holds valid certificates authorizing 
him to perform the duties of those 
crewmembers. 

[Doc. No. 6258, 29 FR 19219, Dec. 31, 1964, as 
amended by Amdt. 121–253, 61 FR 2613, Jan. 
26, 1996] 

§ 121.535 Responsibility for oper-

ational control: Flag operations. 

(a) Each certificate holder con-

ducting flag operations is responsible 
for operational control. 

(b) The pilot in command and the air-

craft dispatcher are jointly responsible 
for the preflight planning, delay, and 
dispatch release of a flight in compli-
ance with this chapter and operations 
specifications. 

(c) The aircraft dispatcher is respon-

sible for— 

(1) Monitoring the progress of each 

flight; 

(2) Issuing necessary instructions and 

information for the safety of the flight; 
and 

(3) Cancelling or redispatching a 

flight if, in his opinion or the opinion 
of the pilot in command, the flight can-
not operate or continue to operate 
safely as planned or released. 

(d) Each pilot in command of an air-

craft is, during flight time, in com-
mand of the aircraft and crew and is re-
sponsible for the safety of the pas-
sengers, crewmembers, cargo, and air-
plane. 

background image

211 

Federal Aviation Administration, DOT 

§ 121.541 

(e) Each pilot in command has full 

control and authority in the operation 
of the aircraft, without limitation, 
over other crewmembers and their du-
ties during flight time, whether or not 
he holds valid certificates authorizing 
him to perform the duties of those 
crewmembers. 

(f) No pilot may operate an aircraft 

in a careless or reckless manner so as 
to endanger life or property. 

[Doc. No. 6258, 29 FR 19219, Dec. 31, 1964, as 
amended by Amdt. 121–253, 61 FR 2613, Jan. 
26, 1996] 

§ 121.537 Responsibility for oper-

ational control: Supplemental oper-

ations. 

(a) Each certificate holder con-

ducting supplemental operations— 

(1) Is responsible for operational con-

trol; and 

(2) Shall list each person authorized 

by it to exercise operational control in 
its operator’s manual. 

(b) The pilot in command and the di-

rector of operations are jointly respon-
sible for the initiation, continuation, 
diversion, and termination of a flight 
in compliance with this chapter and 
the operations specifications. The di-
rector of operations may delegate the 
functions for the initiation, continu-
ation, diversion, and termination of a 
flight but he may not delegate the re-
sponsibility for those functions. 

(c) The director of operations is re-

sponsible for cancelling, diverting, or 
delaying a flight if in his opinion or the 
opinion of the pilot in command the 
flight cannot operate or continue to 
operate safely as planned or released. 
The director of operations is respon-
sible for assuring that each flight is 
monitored with respect to at least the 
following: 

(1) Departure of the flight from the 

place of origin and arrival at the place 
of destination, including intermediate 
stops and any diversions therefrom. 

(2) Maintenance and mechanical 

delays encountered at places of origin 
and destination and intermediate 
stops. 

(3) Any known conditions that may 

adversely affect the safety of flight. 

(d) Each pilot in command of an air-

craft is, during flight time, in com-
mand of the aircraft and crew and is re-

sponsible for the safety of the pas-
sengers, crewmembers, cargo, and air-
craft. The pilot in command has full 
control and authority in the operation 
of the aircraft, without limitation, 
over other crewmembers and their du-
ties during flight time, whether or not 
he holds valid certificates authorizing 
him to perform the duties of those 
crewmembers. 

(e) Each pilot in command of an air-

craft is responsible for the preflight 
planning and the operation of the 
flight in compliance with this chapter 
and the operations specifications. 

(f) No pilot may operate an aircraft, 

in a careless or reckless manner, so as 
to endanger life or property. 

[Doc. No. 6258, 29 FR 19219, Dec. 31, 1964, as 
amended by Amdt. 121–253, 61 FR 2613, Jan. 
26, 1996] 

§ 121.538 Aircraft security. 

Certificate holders conducting oper-

ations under this part must comply 
with the applicable security require-
ments in 49 CFR chapter XII. 

[67 FR 8350, Feb. 22, 2002] 

§ 121.539 Operations notices. 

Each certificate holder shall notify 

its appropriate operations personnel of 
each change in equipment and oper-
ating procedures, including each 
known change in the use of navigation 
aids, airports, air traffic control proce-
dures and regulations, local airport 
traffic control rules, and known haz-
ards to flight, including icing and other 
potentially hazardous meteorological 
conditions and irregularities in ground 
and navigation facilities. 

§ 121.541 Operations schedules: Do-

mestic and flag operations. 

In establishing flight operations 

schedules, each certificate holder con-
ducting domestic or flag operations 
shall allow enough time for the proper 
servicing of aircraft at intermediate 
stops, and shall consider the prevailing 
winds en route and the cruising speed 
of the type of aircraft used. This cruis-
ing speed may not be more than that 
resulting from the specified cruising 
output of the engines. 

[Doc. No. 28154, 61 FR 2613, Jan. 26, 1996] 

background image

212 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.542 

§ 121.542 Flight crewmember duties. 

(a) No certificate holder shall re-

quire, nor may any flight crewmember 
perform, any duties during a critical 
phase of flight except those duties re-
quired for the safe operation of the air-
craft. Duties such as company required 
calls made for such nonsafety related 
purposes as ordering galley supplies 
and confirming passenger connections, 
announcements made to passengers 
promoting the air carrier or pointing 
out sights of interest, and filling out 
company payroll and related records 
are not required for the safe operation 
of the aircraft. 

(b) No flight crewmember may en-

gage in, nor may any pilot in command 
permit, any activity during a critical 
phase of flight which could distract 
any flight crewmember from the per-
formance of his or her duties or which 
could interfere in any way with the 
proper conduct of those duties. Activi-
ties such as eating meals, engaging in 
nonessential conversations within the 
cockpit and nonessential communica-
tions between the cabin and cockpit 
crews, and reading publications not re-
lated to the proper conduct of the 
flight are not required for the safe op-
eration of the aircraft. 

(c) For the purposes of this section, 

critical phases of flight includes all 
ground operations involving taxi, take-
off and landing, and all other flight op-
erations conducted below 10,000 feet, 
except cruise flight. 

N

OTE

: Taxi is defined as ‘‘movement of an 

airplane under its own power on the surface 
of an airport.’’ 

(d) During all flight time as defined 

in 14 CFR 1.1, no flight crewmember 
may use, nor may any pilot in com-
mand permit the use of, a personal 
wireless communications device (as de-
fined in 49 U.S.C. 44732(d)) or laptop 
computer while at a flight crewmember 
duty station unless the purpose is di-
rectly related to operation of the air-
craft, or for emergency, safety-related, 
or employment-related communica-
tions, in accordance with air carrier 
procedures approved by the Adminis-
trator. 

[Doc. No. 20661, 46 FR 5502, Jan. 19, 1981, as 
amended by Amdt. 121–369, 79 FR 8263, Feb. 
12, 2014] 

§ 121.543 Flight crewmembers at con-

trols. 

(a) Except as provided in paragraph 

(b) of this section, each required flight 
crewmember on flight deck duty must 
remain at the assigned duty station 
with seat belt fastened while the air-
craft is taking off or landing, and while 
it is en route. 

(b) A required flight crewmember 

may leave the assigned duty station— 

(1) If the crewmember’s absence is 

necessary for the performance of duties 
in connection with the operation of the 
aircraft; 

(2) If the crewmember’s absence is in 

connection with physiological needs; or 

(3) If the crewmember is taking a rest 

period, and relief is provided— 

(i) In the case of the assigned pilot in 

command during the en route cruise 
portion of the flight, by a pilot who 
holds an airline transport pilot certifi-
cate not subject to the limitations in 
§ 61.167 of this chapter and an appro-
priate type rating, is currently quali-
fied as pilot in command or second in 
command, and is qualified as pilot in 
command of that aircraft during the en 
route cruise portion of the flight. A 
second in command qualified to act as 
a pilot in command en route need not 
have completed the following pilot in 
command requirements: The 6-month 
recurrent flight training required by 
§ 121.433(c)(1)(iii); the operating experi-
ence required by § 121.434; the takeoffs 
and landings required by § 121.439; the 
line check required by § 121.440; and the 
6-month proficiency check or simu-
lator training required by § 121.441(a)(1); 
and 

(ii) In the case of the assigned second 

in command, by a pilot qualified to act 
as second in command of that aircraft 
during en route operations. However, 
the relief pilot need not meet the re-
cent experience requirements of 
§ 121.439(b). 

[Doc. No. 16383, 43 FR 22648, May 25, 1978, as 
amended by Amdt. 121–179, 47 FR 33390, Aug. 
2, 1982; Amdt. 121–365, 78 FR 42378, July 15, 
2013] 

§ 121.544 Pilot monitoring. 

Each pilot who is seated at the pilot 

controls of the aircraft, while not fly-
ing the aircraft, must accomplish pilot 

background image

213 

Federal Aviation Administration, DOT 

§ 121.547 

monitoring duties as appropriate in ac-
cordance with the certificate holder’s 
procedures contained in the manual re-
quired by § 121.133 of this part. Compli-
ance with this section is required no 
later than March 12, 2019. 

[Doc. No. FAA–2008–0677, 78 FR 67841, Nov. 12, 
2013] 

§ 121.545 Manipulation of controls. 

No pilot in command may allow any 

person to manipulate the controls of an 
aircraft during flight nor may any per-
son manipulate the controls during 
flight unless that person is— 

(a) A qualified pilot of the certificate 

holder operating that aircraft. 

(b) An authorized pilot safety rep-

resentative of the Administrator or of 
the National Transportation Safety 
Board who has the permission of the 
pilot in command, is qualified in the 
aircraft, and is checking flight oper-
ations; or 

(c) A pilot of another certificate 

holder who has the permission of the 
pilot in command, is qualified in the 
aircraft, and is authorized by the cer-
tificate holder operating the aircraft. 

[Doc. No. 6258, 29 FR 19220, Dec. 31, 1964, as 
amended by Doc. No. 8084, 32 FR 5769, Apr. 11, 
1967; Amdt. 121–144, 43 FR 22648, May 25, 1978] 

§ 121.547 Admission to flight deck. 

(a) No person may admit any person 

to the flight deck of an aircraft unless 
the person being admitted is— 

(1) A crewmember; 
(2) An FAA air carrier inspector, a 

DOD commercial air carrier evaluator, 
or an authorized representative of the 
National Transportation Safety Board, 
who is performing official duties; 

(3) Any person who— 
(i) Has permission of the pilot in 

command, an appropriate management 
official of the part 119 certificate hold-
er, and the Administrator; and 

(ii) Is an employee of— 
(A) The United States, or 
(B) A part 119 certificate holder and 

whose duties are such that admission 
to the flightdeck is necessary or advan-
tageous for safe operation; or 

(C) An aeronautical enterprise cer-

tificated by the Administrator and 
whose duties are such that admission 
to the flightdeck is necessary or advan-
tageous for safe operation. 

(4) Any person who has the permis-

sion of the pilot in command, an appro-
priate management official of the part 
119 certificate holder and the Adminis-
trator. Paragraph (a)(2) of this section 
does not limit the emergency authority 
of the pilot in command to exclude any 
person from the flightdeck in the inter-
ests of safety. 

(b) For the purposes of paragraph 

(a)(3) of this section, employees of the 
United States who deal responsibly 
with matters relating to safety and 
employees of the certificate holder 
whose efficiency would be increased by 
familiarity with flight conditions, may 
be admitted by the certificate holder. 
However, the certificate holder may 
not admit employees of traffic, sales, 
or other departments that are not di-
rectly related to flight operations, un-
less they are eligible under paragraph 
(a)(4) of this section. 

(c) No person may admit any person 

to the flight deck unless there is a seat 
available for his use in the passenger 
compartment, except— 

(1) An FAA air carrier inspector, a 

DOD commercial air carrier evaluator, 
or authorized representative of the Ad-
ministrator or National Transpor-
tation Safety Board who is checking or 
observing flight operations; 

(2) An air traffic controller who is au-

thorized by the Administrator to ob-
serve ATC procedures; 

(3) A certificated airman employed 

by the certificate holder whose duties 
require an airman certificate; 

(4) A certificated airman employed 

by another part 119 certificate holder 
whose duties with that part 119 certifi-
cate holder require an airman certifi-
cate and who is authorized by the part 
119 certificate holder operating the air-
craft to make specific trips over a 
route; 

(5) An employee of the part 119 cer-

tificate holder operating the aircraft 
whose duty is directly related to the 
conduct or planning of flight oper-
ations or the in-flight monitoring of 
aircraft equipment or operating proce-
dures, if his presence on the flightdeck 
is necessary to perform his duties and 
he has been authorized in writing by a 
responsible supervisor, listed in the Op-
erations Manual as having that author-
ity; and 

background image

214 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.548 

(6) A technical representative of the 

manufacturer of the aircraft or its 
components whose duties are directly 
related to the in-flight monitoring of 
aircraft equipment or operating proce-
dures, if his presence on the flightdeck 
is necessary to perform his duties and 
he has been authorized in writing by 
the Administrator and by a responsible 
supervisor of the operations depart-
ment of the part 119 certificate holder, 
listed in the Operations Manual as hav-
ing that authority. 

[Doc. No. 6258, 29 FR 19220, Dec. 31, 1964, as 
amended by Doc. No. 8084, 32 FR 5769, Apr. 11, 
1967; Amdt. 121–253, 61 FR 2613, Jan. 26, 1996; 
Amdt. 121–288, 67 FR 2127, Jan. 15, 2002; Amdt. 
121–298, 68 FR 41217, July 10, 2003] 

§ 121.548 Aviation safety inspector’s 

credentials: Admission to pilot’s 

compartment. 

Whenever, in performing the duties 

of conducting an inspection, an inspec-
tor of the Federal Aviation Adminis-
tration presents form FAA 110A, 
‘‘Aviation Safety Inspector’s Creden-
tial,’’ to the pilot in command of an 
aircraft operated by a certificate hold-
er, the inspector must be given free and 
uninterrupted access to the pilot’s 
compartment of that aircraft. 

[Doc. No. 28154, 61 FR 2613, Jan. 26, 1996] 

§ 121.548a DOD Commercial Air Car-

rier Evaluator’s Credential. 

Whenever, in performing the duties 

of conducting an evaluation, a DOD 
commercial air carrier evaluator pre-
sents S&A Form 110B, ‘‘DOD Commer-
cial Air Carrier Evaluator’s Creden-
tial,’’ to the pilot in command of an 
airplane operated by the certificate 
holder, the evaluator must be given 
free and uninterrupted access to the pi-
lot’s compartment of that airplane. 

[Doc. No. FAA–2003–15571, 68 FR 41217, July 
10, 2003] 

§ 121.549 Flying equipment. 

(a) The pilot in command shall en-

sure that appropriate aeronautical 
charts containing adequate informa-
tion concerning navigation aids and in-
strument approach procedures are 
aboard the aircraft for each flight. 

(b) Each crewmember shall, on each 

flight, have readily available for his 

use a flashlight that is in good working 
order. 

§ 121.550 Secret Service Agents: Admis-

sion to flight deck. 

Whenever an Agent of the Secret 

Service who is assigned the duty of 
protecting a person aboard an aircraft 
operated by a certificate holder con-
siders it necessary in the performance 
of his duty to ride on the flight deck of 
the aircraft, he must, upon request and 
presentation of his Secret Service cre-
dentials to the pilot in command of the 
aircraft, be admitted to the flight deck 
and permitted to occupy an observer 
seat thereon. 

[Doc. No. 9031, 35 FR 12061, July 28, 1970, as 
amended by Amdt. 121–253, 61 FR 2613, Jan. 
26, 1996] 

§ 121.551 Restriction or suspension of 

operation: Domestic and flag oper-
ations. 

When a certificate holder conducting 

domestic or flag operations knows of 
conditions, including airport and run-
way conditions, that are a hazard to 
safe operations, it shall restrict or sus-
pend operations until those conditions 
are corrected. 

[Doc. No. 28154, 61 FR 2613, Jan. 26, 1996] 

§ 121.553 Restriction or suspension of 

operation: Supplemental oper-
ations. 

When a certificate holder conducting 

supplemental operations or pilot in 
command knows of conditions, includ-
ing airport and runway conditions, 
that are a hazard to safe operations, 
the certificate holder or pilot in com-
mand, as the case may be, shall re-
strict or suspend operations until those 
conditions are corrected. 

[Doc. No. 28154, 61 FR 2613, Jan. 26, 1996] 

§ 121.555 Compliance with approved 

routes and limitations: Domestic 
and flag operations. 

No pilot may operate an airplane in 

scheduled air transportation— 

(a) Over any route or route segment 

unless it is specified in the certificate 
holder’s operations specifications; or 

background image

215 

Federal Aviation Administration, DOT 

§ 121.561 

(b) Other than in accordance with the 

limitations in the operations specifica-
tions. 

[Doc. No. 6258, 29 FR 19219, Dec. 31, 1964, as 
amended by Amdt. 121–253, 61 FR 2614, Jan. 
26, 1996] 

§ 121.557 Emergencies: Domestic and 

flag operations. 

(a) In an emergency situation that 

requires immediate decision and action 
the pilot in command may take any ac-
tion that he considers necessary under 
the circumstances. In such a case he 
may deviate from prescribed oper-
ations procedures and methods, weath-
er minimums, and this chapter, to the 
extent required in the interests of safe-
ty. 

(b) In an emergency situation arising 

during flight that requires immediate 
decision and action by an aircraft dis-
patcher, and that is known to him, the 
aircraft dispatcher shall advise the 
pilot in command of the emergency, 
shall ascertain the decision of the pilot 
in command, and shall have the deci-
sion recorded. If the aircraft dispatcher 
cannot communicate with the pilot, he 
shall declare an emergency and take 
any action that he considers necessary 
under the circumstances. 

(c) Whenever a pilot in command or 

dispatcher exercises emergency author-
ity, he shall keep the appropriate ATC 
facility and dispatch centers fully in-
formed of the progress of the flight. 
The person declaring the emergency 
shall send a written report of any devi-
ation through the certificate holder’s 
operations manager, to the Adminis-
trator. A dispatcher shall send his re-
port within 10 days after the date of 
the emergency, and a pilot in command 
shall send his report within 10 days 
after returning to his home base. 

[Doc. No. 6258, 29 FR 19219, Dec. 31, 1964, as 
amended by Amdt. 121–253, 61 FR 2614, Jan. 
26, 1996] 

§ 121.559 Emergencies: Supplemental 

operations. 

(a) In an emergency situation that 

requires immediate decision and ac-
tion, the pilot in command may take 
any action that he considers necessary 
under the circumstances. In such a 
case, he may deviate from prescribed 
operations, procedures and methods, 

weather minimums, and this chapter, 
to the extent required in the interests 
of safety. 

(b) In an emergency situation arising 

during flight that requires immediate 
decision and action by appropriate 
management personnel in the case of 
operations conducted with a flight fol-
lowing service and which is known to 
them, those personnel shall advise the 
pilot in command of the emergency, 
shall ascertain the decision of the pilot 
in command, and shall have the deci-
sion recorded. If they cannot commu-
nicate with the pilot, they shall de-
clare an emergency and take any ac-
tion that they consider necessary 
under the circumstances. 

(c) Whenever emergency authority is 

exercised, the pilot in command or the 
appropriate management personnel 
shall keep the appropriate communica-
tion facility fully informed of the 
progress of the flight. The person de-
claring the emergency shall send a 
written report of any deviation, 
through the certificate holder’s direc-
tor of operations, to the Administrator 
within 10 days after the flight is com-
pleted or, in the case of operations out-
side the United States, upon return to 
the home base. 

[Doc. No. 6258, 29 FR 19219, Dec. 31, 1964, as 
amended by Amdt. 121–253, 61 FR 2614, Jan. 
26, 1996; Amdt. 121–333, 72 FR 31682, June 7, 
2007] 

§ 121.561 Reporting potentially haz-

ardous meteorological conditions 
and irregularities of ground facili-
ties or navigation aids. 

(a) Whenever he encounters a mete-

orological condition or an irregularity 
in aground facility or navigation aid, 
in flight, the knowledge of which he 
considers essential to the safety of 
other flights, the pilot in command 
shall notify an appropriate ground sta-
tion as soon as practicable. 

(b) The ground radio station that is 

notified under paragraph (a) of this sec-
tion shall report the information to the 
agency directly responsible for oper-
ating the facility. 

[Doc. No. 6258, 29 FR 19219, Dec. 31, 1964, as 
amended by Amdt. 121–333, 72 FR 31682, June 
7, 2007] 

background image

216 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.563 

§ 121.563 Reporting mechanical irreg-

ularities. 

The pilot in command shall ensure 

that all mechanical irregularities oc-
curring during flight time are entered 
in the maintenance log of the airplane 
at the end of that flight time. Before 
each flight the pilot in command shall 
ascertain the status of each irregu-
larity entered in the log at the end of 
the preceding flight. 

[Doc. No. 17897, 45 FR 41594, June 19, 1980, as 
amended by Amdt. 121–179, 47 FR 33390, Aug. 
2, 1982] 

§ 121.565 Engine inoperative: Landing; 

reporting. 

(a) Except as provided in paragraph 

(b) of this section, whenever an air-
plane engine fails or whenever an en-
gine is shutdown to prevent possible 
damage, the pilot in command must 
land the airplane at the nearest suit-
able airport, in point of time, at which 
a safe landing can be made. 

(b) If not more than one engine of an 

airplane that has three or more engines 
fails or is shut down to prevent pos-
sible damage, the pilot-in-command 
may proceed to an airport that the 
pilot selects if, after considering the 
following, the pilot makes a reasonable 
decision that proceeding to that air-
port is as safe as landing at the nearest 
suitable airport: 

(1) The nature of the malfunction and 

the possible mechanical difficulties 
that may occur if flight is continued. 

(2) The altitude, weight, and useable 

fuel at the time that the engine is 
shutdown. 

(3) The weather conditions en route 

and at possible landing points. 

(4) The air traffic congestion. 
(5) The kind of terrain. 
(6) His familiarity with the airport to 

be used. 

(c) The pilot-in-command must re-

port each engine shutdown in flight to 
the appropriate communication facil-
ity as soon as practicable and must 
keep that facility fully informed of the 
progress of the flight. 

(d) If the pilot in command lands at 

an airport other than the nearest suit-
able airport, in point of time, he or she 
shall (upon completing the trip) send a 
written report, in duplicate, to his or 
her director of operations stating the 

reasons for determining that the selec-
tion of an airport, other than the near-
est airport, was as safe a course of ac-
tion as landing at the nearest suitable 
airport. The director of operations 
shall, within 10 days after the pilot re-
turns to his or her home base, send a 
copy of this report with the director of 
operation’s comments to the respon-
sible Flight Standards office. 

[Doc. No. 6258, 29 FR 19219, Dec. 31, 1964, as 
amended by Amdt. 121–207, 54 FR 39293, Sept. 
25, 1989; Amdt. 121–253, 61 FR 2614, Jan. 26, 
1996; Amdt. 121–329, 72 FR 1881, Jan. 16, 2007; 
Amdt. 121–333, 72 FR 31682, June 7, 2007; 
Docket FAA–2018–0119, Amdt. 121–380, 83 FR 
9172, Mar. 5, 2018] 

§ 121.567 Instrument approach proce-

dures and IFR landing minimums. 

No person may make an instrument 

approach at an airport except in ac-
cordance with IFR weather minimums 
and instrument approach procedures 
set forth in the certificate holder’s op-
erations specifications. 

§ 121.569 Equipment interchange: Do-

mestic and flag operations. 

(a) Before operating under an inter-

change agreement, each certificate 
holder conducting domestic or flag op-
erations shall show that— 

(1) The procedures for the inter-

change operation conform with this 
chapter and with safe operating prac-
tices; 

(2) Required crewmembers and dis-

patchers meet approved training re-
quirements for the airplanes and equip-
ment to be used and are familiar with 
the communications and dispatch pro-
cedures to be used; 

(3) Maintenance personnel meet 

training requirements for the airplanes 
and equipment, and are familiar with 
the maintenance procedures to be used; 

(4) Flight crewmembers and dis-

patchers meet appropriate route and 
airport qualifications; and 

(5) The airplanes to be operated are 

essentially similar to the airplanes of 
the certificate holder with whom the 
interchange is effected with respect to 
the arrangement of flight instruments 
and the arrangement and motion of 
controls that are critical to safety un-
less the Administrator determines that 
the certificate holder has adequate 

background image

217 

Federal Aviation Administration, DOT 

§ 121.571 

training programs to insure that any 
potentially hazardous dissimilarities 
are safely overcome by flight crew fa-
miliarization. 

(b) Each certificate holder con-

ducting domestic or flag operations 
shall include the pertinent provisions 
and procedures involved in the equip-
ment interchange agreement in its 
manuals. 

[Doc. No. 6258, 29 FR 19219, Dec. 31, 1964, as 
amended by Amdt. 121–253, 61 FR 2614, Jan. 
26, 1996] 

§ 121.570 Airplane evacuation capa-

bility. 

(a) No person may cause an airplane 

carrying passengers to be moved on the 
surface, take off, or land unless each 
automatically deployable emergency 
evacuation assisting means, installed 
pursuant to § 121.310(a), is ready for 
evacuation. 

(b) Each certificate holder shall en-

sure that, at all times passengers are 
on board prior to airplane movement 
on the surface, at least one floor-level 
exit provides for the egress of pas-
sengers through normal or emergency 
means. 

[Doc. No. 26142, 57 FR 42674, Sept. 15, 1992] 

§ 121.571 Briefing passengers before 

takeoff. 

(a) Each certificate holder operating 

a passenger-carrying airplane shall in-
sure that all passengers are orally 
briefed by the appropriate crewmember 
as follows: 

(1) Before each takeoff, on each of the 

following: 

(i) 

Smoking. 

Each passenger shall be 

briefed on when, where, and under what 
conditions smoking is prohibited in-
cluding, but not limited to, any appli-
cable requirements of part 252 of this 
title). This briefing shall include a 
statement that the Federal Aviation 
Regulations require passenger compli-
ance with the lighted passenger infor-
mation signs, posted placards, areas 
designated for safety purposes as no 
smoking areas, and crewmember in-
structions with regard to these items. 
The briefing shall also include a state-
ment that Federal law prohibits tam-
pering with, disabling, or destroying 
any smoke detector in an airplane lav-
atory; smoking in lavatories; and, 

when applicable, smoking in passenger 
compartments. 

(ii) The location of emergency exits. 
(iii) The use of safety belts, including 

instructions on how to fasten and un-
fasten the safety belts. Each passenger 
shall be briefed on when, where, and 
under what conditions the safety belt 
must be fastened about that passenger. 
This briefing shall include a statement 
that the Federal Aviation Regulations 
require passenger compliance with 
lighted passenger information signs 
and crewmember instructions con-
cerning the use of safety belts. 

(iv) The location and use of any re-

quired emergency flotation means. 

(v) On operations that do not use a 

flight attendant, the following addi-
tional information: 

(A) The placement of seat backs in an 

upright position before takeoff and 
landing. 

(B) Location of survival equipment. 
(C) If the flight involves operations 

above 12,000 MSL, the normal and 
emergency use of oxygen. 

(D) Location and operation of fire ex-

tinguisher. 

(2) After each takeoff, immediately 

before or immediately after turning 
the seat belt sign off, an announcement 
shall be made that passengers should 
keep their seat belts fastened, while 
seated, even when the seat belt sign is 
off. 

(3) Except as provided in paragraph 

(a)(4) of this section, before each take-
off a required crewmember assigned to 
the flight shall conduct an individual 
briefing of each person who may need 
the assistance of another person to 
move expeditiously to an exit in the 
event of an emergency. In the briefing 
the required crewmember shall— 

(i) Brief the person and his attend-

ant, if any, on the routes to each ap-
propriate exit and on the most appro-
priate time to begin moving to an exit 
in the event of an emergency; and 

(ii) Inquire of the person and his at-

tendant, if any, as to the most appro-
priate manner of assisting the person 
so as to prevent pain and further in-
jury. 

(4) The requirements of paragraph 

(a)(3) of this section do not apply to a 
person who has been given a briefing 
before a previous leg of a flight in the 

background image

218 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.573 

same aircraft when the crewmembers 
on duty have been advised as to the 
most appropriate manner of assisting 
the person so as to prevent pain and 
further injury. 

(b) Each certificate holder must 

carry on each passenger-carrying air-
plane, in convenient locations for use 
of each passenger, printed cards 
supplementing the oral briefing. Each 
card must contain information perti-
nent only to the type and model of air-
plane used for that flight, including— 

(1) Diagrams of, and methods of oper-

ating, the emergency exits; 

(2) Other instructions necessary for 

use of emergency equipment; and 

(3) No later than June 12, 2005, for Do-

mestic and Flag scheduled passenger- 
carrying flights, the sentence, ‘‘Final 
assembly of this airplane was com-
pleted in [INSERT NAME OF COUN-
TRY].’’ 

(c) The certificate holder shall de-

scribe in its manual the procedure to 
be followed in the briefing required by 
paragraph (a) of this section. 

[Doc. No. 2033, 30 FR 3206, Mar. 9, 1965] 

E

DITORIAL

N

OTE

: For F

EDERAL

R

EGISTER

ci-

tations affecting § 121.571, see the List of CFR 
Sections Affected, which appears in the 
Finding Aids section of the printed volume 
and at 

www.govinfo.gov. 

§ 121.573 Briefing passengers: Ex-

tended overwater operations. 

(a) In addition to the oral briefing re-

quired by § 121.571(a), each certificate 
holder operating an airplane in ex-
tended overwater operations shall en-
sure that all passengers are orally 
briefed by the appropriate crewmember 
on the location and operation of life 
preservers, liferafts, and other flota-
tion means, including a demonstration 
of the method of donning and inflating 
a life preserver. 

(b) The certificate holder shall de-

scribe in its manual the procedure to 
be followed in the briefing required by 
paragraph (a) of this section. 

(c) If the airplane proceeds directly 

over water after takeoff, the briefing 
required by paragraph (a) of this sec-
tion must be done before takeoff. 

(d) If the airplane does not proceed 

directly over water after takeoff, no 
part of the briefing required by para-
graph (a) of this section has to be given 

before takeoff, but the entire briefing 
must be given before reaching the 
overwater part of the flight. 

[Doc. No. 2033, 30 FR 3206, Mar. 9, 1965, as 
amended by Amdt. 121–144, 43 FR 22648, May 
25, 1978; Amdt. 121–146, 43 FR 28403, June 29, 
1978] 

§ 121.574 Oxygen and portable oxygen 

concentrators for medical use by 

passengers. 

(a) A certificate holder may allow a 

passenger to carry and operate equip-
ment for the storage, generation, or 
dispensing of oxygen when all of the 
conditions in paragraphs (a) through 
(d) of this section are satisfied. Begin-
ning August 22, 2016, a certificate hold-
er may allow a passenger to carry and 
operate a portable oxygen concentrator 
when the conditions in paragraphs (b) 
and (e) of this section are satisfied. 

(1) The equipment is— 
(i) Furnished by the certificate hold-

er; 

(ii) Of an approved type or is in con-

formity with the manufacturing, pack-
aging, marking, labeling, and mainte-
nance requirements of 49 CFR parts 
171, 172, and 173, except § 173.24(a)(1); 

(iii) Maintained by the certificate 

holder in accordance with an approved 
maintenance program; 

(iv) Free of flammable contaminants 

on all exterior surfaces; 

(v) Capable of providing a minimum 

mass flow of oxygen to the user of four 
liters per minute; 

(vi) Constructed so that all valves, 

fittings, and gauges are protected from 
damage; and 

(vii) Appropriately secured. 
(2) When the oxygen is stored in the 

form of a liquid, the equipment has 
been under the certificate holder’s ap-
proved maintenance program since its 
purchase new or since the storage con-
tainer was last purged. 

(3) When the oxygen is stored in the 

form of a compressed gas as defined in 
49 CFR 173.115(b)— 

(i) The equipment has been under the 

certificate holder’s approved mainte-
nance program since its purchase new 
or since the last hydrostatic test of the 
storage cylinder; and 

(ii) The pressure in any oxygen cyl-

inder does not exceed the rated cyl-
inder pressure. 

background image

219 

Federal Aviation Administration, DOT 

§ 121.574 

(4) Each person using the equipment 

has a medical need to use it evidenced 
by a written statement to be kept in 
that person’s possession, signed by a li-
censed physician which specifies the 
maximum quantity of oxygen needed 
each hour and the maximum flow rate 
needed for the pressure altitude cor-
responding to the pressure in the cabin 
of the airplane under normal operating 
conditions. This paragraph does not 
apply to the carriage of oxygen in an 
airplane in which the only passengers 
carried are persons who may have a 
medical need for oxygen during flight, 
no more than one relative or other in-
terested person for each of those per-
sons, and medical attendants. 

(5) When a physician’s statement is 

required by paragraph (a)(4) of this sec-
tion, the total quantity of oxygen car-
ried is equal to the maximum quantity 
of oxygen needed each hour, as speci-
fied in the physician’s statement, mul-
tiplied by the number of hours used to 
compute the amount of airplane fuel 
required by this part. 

(6) The pilot in command is advised 

when the equipment is on board, and 
when it is intended to be used. 

(7) The equipment is stowed, and 

each person using the equipment is 
seated, so as not to restrict access to 
or use of any required emergency, or 
regular exit or of the aisle in the pas-
senger compartment. 

(b) No person may smoke or create 

an open flame and no certificate holder 
may allow any person to smoke or cre-
ate an open flame within 10 feet of oxy-
gen storage and dispensing equipment 
carried in accordance with paragraph 
(a) of this section or a portable oxygen 
concentrator carried and operated in 
accordance with paragraph (e) of this 
section. 

(c) No certificate holder may allow 

any person to connect or disconnect 
oxygen dispensing equipment, to or 
from a gaseous oxygen cylinder while 
any passenger is aboard the airplane. 

(d) The requirements of this section 

do not apply to the carriage of supple-
mental or first-aid oxygen and related 
equipment required by this chapter. 

(e) 

Portable oxygen concentrators

—(1) 

Acceptance criteria. 

A passenger may 

carry or operate a portable oxygen con-
centrator for personal use on board an 

aircraft and a certificate holder may 
allow a passenger to carry or operate a 
portable oxygen concentrator on board 
an aircraft operated under this part 
during all phases of flight if the port-
able oxygen concentrator satisfies all 
of the requirements in this paragraph 
(e): 

(i) Is legally marketed in the United 

States in accordance with Food and 
Drug Administration requirements in 
title 21 of the CFR; 

(ii) Does not radiate radio frequency 

emissions that interfere with aircraft 
systems; 

(iii) Generates a maximum oxygen 

pressure of less than 200 kPa gauge 
(29.0 psig/43.8 psia) at 20 

°

C (68 

°

F); 

(iv) Does not contain any hazardous 

materials subject to the Hazardous Ma-
terials Regulations (49 CFR parts 171 
through 180) except as provided in 49 
CFR 175.10 for batteries used to power 
portable electronic devices and that do 
not require aircraft operator approval; 
and 

(v) Bears a label on the exterior of 

the device applied in a manner that en-
sures the label will remain affixed for 
the life of the device and containing 
the following certification statement 
in red lettering: ‘‘The manufacturer of 
this POC has determined this device 
conforms to all applicable FAA accept-
ance criteria for POC carriage and use 
on board aircraft.’’ The label require-
ments in this paragraph (e)(1)(v) do not 
apply to the following portable oxygen 
concentrators approved by the FAA for 
use on board aircraft prior to May 24, 
2016: 

(A) AirSep Focus; 
(B) AirSep FreeStyle; 
(C) AirSep FreeStyle 5; 
(D) AirSep LifeStyle; 
(E) Delphi RS–00400; 
(F) DeVilbiss Healthcare iGo; 
(G) Inogen One; 
(H) Inogen One G2; 
(I) Inogen One G3; 
(J) Inova Labs LifeChoice; 
(K) Inova Labs LifeChoice Activox; 
(L) International Biophysics 

LifeChoice; 

(M) Invacare Solo2; 
(N) Invacare XPO2; 
(O) Oxlife Independence Oxygen Con-

centrator; 

(P) Oxus RS–00400; 

background image

220 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.575 

(Q) Precision Medical EasyPulse; 
(R) Respironics EverGo; 
(S) Respironics SimplyGo; 
(T) SeQual Eclipse; 
(U) SeQual eQuinox Oxygen System 

(model 4000); 

(V) SeQual Oxywell Oxygen System 

(model 4000); 

(W) SeQual SAROS; and 
(X) VBox Trooper Oxygen Concen-

trator. 

(2) 

Operating requirements. 

Portable 

oxygen concentrators that satisfy the 
acceptance criteria identified in para-
graph (e)(1) of this section may be car-
ried or operated by a passenger on an 
aircraft provided the aircraft operator 
ensures that all of the conditions in 
this paragraph (e)(2) are satisfied: 

(i) 

Exit seats. 

No person operating a 

portable oxygen concentrator is per-
mitted to occupy an exit seat. 

(ii) 

Stowage of device. 

During move-

ment on the surface, takeoff and land-
ing, the device must be stowed under 
the seat in front of the user, or in an-
other approved stowage location so 
that it does not block the aisle way or 
the entryway to the row. If the device 
is to be operated by the user, it must 
be operated only at a seat location that 
does not restrict any passenger’s access 
to, or use of, any required emergency 
or regular exit, or the aisle(s) in the 
passenger compartment. 

[Doc. No. 12169, 39 FR 42677, Dec. 6, 1974, as 
amended by Amdt. 121–159, 45 FR 41594, June 
19, 1980; Docket FAA–2014–0554, Amdt. 121– 
374, 81 FR 33118, May 24, 2016] 

§ 121.575 Alcoholic beverages. 

(a) No person may drink any alco-

holic beverage aboard an aircraft un-
less the certificate holder operating 
the aircraft has served that beverage to 
him. 

(b) No certificate holder may serve 

any alcoholic beverage to any person 
aboard any of its aircraft who— 

(1) Appears to be intoxicated; 
(2) Is escorting a person or being es-

corted in accordance with 49 CFR 
1544.221; or 

(3) Has a deadly or dangerous weapon 

accessible to him while aboard the air-
craft in accordance with 49 CFR 
1544.219, 1544.221, or 1544.223. 

(c) No certificate holder may allow 

any person to board any of its aircraft 

if that person appears to be intoxi-
cated. 

(d) Each certificate holder shall, 

within five days after the incident, re-
port to the Administrator the refusal 
of any person to comply with para-
graph (a) of this section, or of any dis-
turbance caused by a person who ap-
pears to be intoxicated aboard any of 
its aircraft. 

[Doc. No. 6258, 29 FR 19219, Dec. 31, 1964, as 
amended by Amdt. 121–118, 40 FR 17552, Apr. 
21, 1975; Amdt. 121–178, 47 FR 13316, Mar. 29, 
1982; Amdt. 121–275, 67 FR 31932, May 10, 2002] 

§ 121.576 Retention of items of mass in 

passenger and crew compartments. 

The certificate holder must provide 

and use means to prevent each item of 
galley equipment and each serving 
cart, when not in use, and each item of 
crew baggage, which is carried in a pas-
senger or crew compartment from be-
coming a hazard by shifting under the 
appropriate load factors corresponding 
to the emergency landing conditions 
under which the airplane was type cer-
tificated. 

[Doc. No. 16383, 43 FR 22648, May 25, 1978] 

§ 121.577 Stowage of food, beverage, 

and passenger service equipment 
during airplane movement on the 
surface, takeoff, and landing. 

(a) No certificate holder may move 

an airplane on the surface, take off, or 
land when any food, beverage, or table-
ware furnished by the certificate hold-
er is located at any passenger seat. 

(b) No certificate holder may move 

an airplane on the surface, take off, or 
land unless each food and beverage 
tray and seat back tray table is se-
cured in its stowed position. 

(c) No certificate holder may permit 

an airplane to move on the surface, 
take off, or land unless each passenger 
serving cart is secured in its stowed po-
sition. 

(d) No certificate holder may permit 

an airplane to move on the surface, 
take off, or land unless each movie 
screen that extends into an aisle is 
stowed. 

(e) Each passenger shall comply with 

instructions given by a crewmember 

background image

221 

Federal Aviation Administration, DOT 

§ 121.579 

with regard to compliance with this 
section. 

[Doc. No. 26142, 57 FR 42674, Sept. 15, 1992] 

§ 121.578 Cabin ozone concentration. 

(a) For the purpose of this section, 

the following definitions apply: 

(1) 

Flight segment 

means scheduled 

nonstop flight time between two air-
ports. 

(2) 

Sea level equivalent 

refers to condi-

tions of 25 

°

C and 760 millimeters of 

mercury pressure. 

(b) Except as provided in paragraphs 

(d) and (e) of this section, no certifi-
cate holder may operate an airplane 
above the following flight levels unless 
it is successfully demonstrated to the 
Administrator that the concentration 
of ozone inside the cabin will not ex-
ceed— 

(1) For flight above flight level 320, 

0.25 parts per million by volume, sea 
level equivalent, at any time above 
that flight level; and 

(2) For flight above flight level 270, 

0.1 parts per million by volume, sea 
level equivalent, time-weighted aver-
age for each flight segment that ex-
ceeds 4 hours and includes flight above 
that flight level. (For this purpose, the 
amount of ozone below flight level 180 
is considered to be zero.) 

(c) Compliance with this section 

must be shown by analysis or tests, 
based on either airplane operational 
procedures and performance limita-
tions or the certificate holder’s oper-
ations. The analysis or tests must show 
either of the following: 

(1) Atmospheric ozone statistics indi-

cate, with a statistical confidence of at 
least 84%, that at the altitudes and lo-
cations at which the airplane will be 
operated cabin ozone concentrations 
will not exceed the limits prescribed by 
paragraph (b) of this section. 

(2) The airplane ventilation system 

including any ozone control equipment, 
will maintain cabin ozone concentra-
tions at or below the limits prescribed 
by paragraph (b) of this section. 

(d) A certificate holder may obtain 

an authorization to deviate from the 
requirements of paragraph (b) of this 
section, by an amendment to its oper-
ations specifications, if— 

(1) It shows that due to cir-

cumstances beyond its control or to 

unreasonable economic burden it can-
not comply for a specified period of 
time; and 

(2) It has submitted a plan acceptable 

to the Administrator to effect compli-
ance to the extent possible. 

(e) A certificate holder need not com-

ply with the requirements of paragraph 
(b) of this section for an aircraft— 

(1) When the only persons carried are 

flight crewmembers and persons listed 
in § 121.583; 

(2) If the aircraft is scheduled for re-

tirement before January 1, 1985; or 

(3) If the aircraft is scheduled for re- 

engining under the provisions of sub-
part E of part 91, until it is re-engined. 

[Doc. No. 121–154, 45 FR 3883, Jan. 21, 1980. Re-
designated by Amdt. 121–162, 45 FR 46739, 
July 10, 1980, and amended by Amdt. 121–181, 
47 FR 58489, Dec. 30, 1982; Amdt. 121–251, 60 
FR 65935, Dec. 20, 1995] 

§ 121.579 Minimum altitudes for use of 

autopilot. 

(a) 

Definitions. 

For purpose of this 

section— 

(1) Altitudes for takeoff/initial climb 

and go-around/missed approach are de-
fined as above the airport elevation. 

(2) Altitudes for enroute operations 

are defined as above terrain elevation. 

(3) Altitudes for approach are defined 

as above the touchdown zone elevation 
(TDZE), unless the altitude is specifi-
cally in reference to DA (H) or MDA, in 
which case the altitude is defined by 
reference to the DA(H) or MDA itself. 

(b) 

Takeoff and initial climb. 

No person 

may use an autopilot for takeoff or ini-
tial climb below the higher of 500 feet 
or an altitude that is no lower than 
twice the altitude loss specified in the 
Airplane Flight Manual (AFM), except 
as follows— 

(1) At a minimum engagement alti-

tude specified in the AFM; or 

(2) At an altitude specified by the Ad-

ministrator, whichever is greater. 

(c) 

Enroute. 

No person may use an 

autopilot enroute, including climb and 
descent, below the following— 

(1) 500 feet; 
(2) At an altitude that is no lower 

than twice the altitude loss specified in 
the AFM for an autopilot malfunction 
in cruise conditions; or 

(3) At an altitude specified by the Ad-

ministrator, whichever is greater. 

background image

222 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.580 

(d) 

Approach. 

No person may use an 

autopilot at an altitude lower than 50 
feet below the DA(H) or MDA for the 
instrument procedure being flown, ex-
cept as follows— 

(1) For autopilots with an AFM speci-

fied altitude loss for approach oper-
ations— 

(i) An altitude no lower than twice 

the specified altitude loss if higher 
than 50 feet below the MDA or DA(H); 

(ii) An altitude no lower than 50 feet 

higher than the altitude loss specified 
in the AFM, when the following condi-
tions are met— 

(A) Reported weather conditions are 

less than the basic VFR weather condi-
tions in § 91.155 of this chapter; 

(B) Suitable visual references speci-

fied in § 91.175 of this chapter have been 
established on the instrument ap-
proach procedure; and 

(C) The autopilot is coupled and re-

ceiving both lateral and vertical path 
references; 

(iii) An altitude no lower than the 

higher of the altitude loss specified in 
the AFM or 50 feet above the TDZE, 
when the following conditions are 
met— 

(A) Reported weather conditions are 

equal to or better than the basic VFR 
weather conditions in § 91.155 of this 
chapter; and 

(B) The autopilot is coupled and re-

ceiving both lateral and vertical path 
references; or 

(iv) A greater altitude specified by 

the Administrator. 

(2) For autopilots with AFM specified 

approach altitude limitations, the 
greater of— 

(i) The minimum use altitude speci-

fied for the coupled approach mode se-
lected; 

(ii) 50 feet; or 
(iii) An altitude specified by Admin-

istrator. 

(3) For autopilots with an AFM speci-

fied negligible or zero altitude loss for 
an autopilot approach mode malfunc-
tion, the greater of— 

(i) 50 feet; or 
(ii) An altitude specified by Adminis-

trator. 

(4) If executing an autopilot coupled 

go-around or missed approach using a 
certificated and functioning autopilot 

in accordance with paragraph (e) in 
this section. 

(e) 

Go-Around/Missed Approach. 

No 

person may engage an autopilot during 
a go-around or missed approach below 
the minimum engagement altitude 
specified for takeoff and initial climb 
in paragraph (b) in this section. An 
autopilot minimum use altitude does 
not apply to a go-around/missed ap-
proach initiated with an engaged auto-
pilot. Performing a go-around or 
missed approach with an engaged auto-
pilot must not adversely affect safe ob-
stacle clearance. 

(f) 

Landing. 

Notwithstanding para-

graph (d) of this section, autopilot min-
imum use altitudes do not apply to 
autopilot operations when an approved 
automatic landing system mode is 
being used for landing. Automatic 
landing systems must be authorized in 
an operations specification issued to 
the operator. 

[Doc. No. FAA–2012–1059, 79 FR 6086, Feb. 3, 
2014] 

§ 121.580 Prohibition on interference 

with crewmembers. 

No person may assault, threaten, in-

timidate, or interfere with a crew-
member in the performance of the 
crewmember’s duties aboard an air-
craft being operated under this part. 

[Doc. No. FAA–1998–4954, 64 FR 1080, Jan. 7, 
1999] 

§ 121.581 Observer’s seat: En route in-

spections. 

(a) Except as provided in paragraph 

(c) of this section, each certificate 
holder shall make available a seat on 
the flight deck of each airplane, used 
by it in air commerce, for occupancy 
by the Administrator while conducting 
en route inspections. The location and 
equipment of the seat, with respect to 
its suitability for use in conducting en 
route inspections, is determined by the 
Administrator. 

(b) In each airplane that has more 

than one observer’s seat, in addition to 
the seats required for the crew com-
plement for which the airplane was cer-
tificated, the forward observer’s seat or 
the observer’s seat selected by the Ad-
ministrator must be made available 
when complying with paragraph (a) of 
this section. 

background image

223 

Federal Aviation Administration, DOT 

§ 121.583 

(c) For any airplane type certificated 

before December 20, 1995, for not more 
than 30 passengers that does not have 
an observer seat on the flightdeck, the 
certificate holder must provide a for-
ward passenger seat with headset or 
speaker for occupancy by the Adminis-
trator while conducting en route in-
spections. 

[Doc. No. 6258, 29 FR 19219, Dec. 31, 1964, as 
amended by Amdt. 121–144, 43 FR 22648, May 
25, 1978; Amdt. 121–251, 60 FR 65935, Dec. 20, 
1995; Amdt. 121–288, 67 FR 2128, Jan. 15, 2002] 

§ 121.582 Means to discreetly notify a 

flightcrew. 

Except for all-cargo operations as de-

fined in § 110.2 of this chapter, after Oc-
tober 15, 2007, for all passenger car-
rying airplanes that require a lockable 
flightdeck door in accordance with 
§ 121.313(f), the certificate holder must 
have an approved means by which the 
cabin crew can discreetly notify the 
flightcrew in the event of suspicious 
activity or security breaches in the 
cabin. 

[Doc. No. FAA–2005–22449, 72 FR 45635, Aug. 
15, 2007, as amended by Amdt. 121–353, 76 FR 
7488, Feb. 10, 2011] 

§ 121.583 Carriage of persons without 

compliance with the passenger-car-
rying requirements of this part. 

(a) When authorized by the certifi-

cate holder, the following persons, but 
no others, may be carried aboard an 
airplane without complying with the 
passenger-carrying airplane require-
ments in §§ 121.309(f), 121.310, 121.391, 
121.571, and 121.587; the passenger-car-
rying operation requirements in part 
117 and §§ 121.157(c) and 121.291; the re-
quirements pertaining to passengers in 
§§ 121.285, 121.313(f), 121.317, 121.547, and 
121.573; and the information disclosure 
requirements in § 121.311(k): 

(1) A crewmember. 
(2) A company employee. 
(3) An FAA air carrier inspector, a 

DOD commercial air carrier evaluator, 
or an authorized representative of the 
National Transportation Safety Board, 
who is performing official duties. 

(4) A person necessary for— 
(i) The safety of the flight; 
(ii) The safe handling of animals; 

(iii) The safe handling of hazardous 

materials whose carriage is governed 
by regulations in 49 CFR part 175; 

(iv) The security of valuable or con-

fidential cargo; 

(v) The preservation of fragile or per-

ishable cargo; 

(vi) Experiments on, or testing of, 

cargo containers or cargo handling de-
vices; 

(vii) The operation of special equip-

ment for loading or unloading cargo; 
and 

(viii) The loading or unloading of 

outsize cargo. 

(5) A person described in paragraph 

(a)(4) of this section, when traveling to 
or from his assignment. 

(6) A person performing duty as an 

honor guard accompanying a shipment 
made by or under the authority of the 
United States. 

(7) A military courier, military route 

supervisor, military cargo contract co-
ordinator, or a flight crewmember of 
another military cargo contract air 
carrier or commercial operator, carried 
by a military cargo contract air carrier 
or commercial operator in operations 
under a military cargo contract, if that 
carriage is specifically authorized by 
the appropriate armed forces. 

(8) A dependent of an employee of the 

certificate holder when traveling with 
the employee on company business to 
or from outlying stations not served by 
adequate regular passenger flights. 

(b) No certificate holder may operate 

an airplane carrying a person covered 
by paragraph (a) of this section un-
less— 

(1) Each person has unobstructed ac-

cess from his seat to the pilot compart-
ment or to a regular or emergency exit; 

(2) The pilot in command has a 

means of notifying each person when 
smoking is prohibited and when safety 
belts must be fastened; and 

(3) The airplane has an approved seat 

with an approved safety belt for each 
person. The seat must be located so 
that the occupant is not in any posi-
tion to interfere with the flight crew-
members performing their duties. 

(c) Before each takeoff, each certifi-

cate holder operating an airplane car-
rying persons covered by paragraph (a) 
of this section shall ensure that all 

background image

224 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.584 

such persons have been orally briefed 
by the appropriate crewmember on— 

(1) Smoking; 
(2) The use of seat belts; 
(3) The location and operation of 

emergency exits; 

(4) The use of oxygen and emergency 

oxygen equipment; and 

(5) For extended overwater oper-

ations, the location of life rafts, and 
the location and operation of life pre-
servers including a demonstration of 
the method of donning and inflating a 
life preserver. 

(d) Each certificate holder operating 

an airplane carrying persons covered 
by paragraph (a) of this section shall 
incorporate procedures for the safe car-
riage of such persons into the certifi-
cate holder’s operations manual. 

(e) The pilot in command may au-

thorize a person covered by paragraph 
(a) of this section to be admitted to the 
crew compartment of the airplane. 

[Doc. No. 10580, 35 FR 14612, Sept. 18, 1970, as 
amended by Amdt. 121–96, 37 FR 19608, Sept. 
21, 1972; Amdt. 121–159, 45 FR 41594, June 19, 
1980; Amdt. 121–232, 57 FR 48663, Oct. 27, 1992; 
Amdt. 121–251, 60 FR 65935, Dec. 20, 1995; 
Amdt. 121–253, 61 FR 2614, Jan. 26, 1996; Amdt. 
121–298, 68 FR 41217, July 10, 2003; Amdt. 121– 
357, 77 FR 403, Jan. 4, 2012; Amdt. 121–373, 80 
FR 58586, Sept. 30, 2015] 

§ 121.584 Requirement to view the 

area outside the flightdeck door. 

From the time the airplane moves in 

order to initiate a flight segment 
through the end of that flight segment, 
no person may unlock or open the 
flightdeck door unless: 

(a) A person authorized to be on the 

flightdeck uses an approved audio pro-
cedure and an approved visual device to 
verify that: 

(1) The area outside the flightdeck 

door is secure, and; 

(2) If someone outside the flightdeck 

is seeking to have the flightdeck door 
opened, that person is not under du-
ress, and; 

(3) If the airplane is in flight, any in-

stalled physical secondary barrier 
(IPSB) required by § 121.313(l) has been 
deployed; and 

(b) After the requirements of para-

graph (a) of this section have been sat-
isfactorily accomplished, the crew-
member in charge on the flightdeck au-

thorizes the door to be unlocked and 
open. 

[Amdt. 121–334, 72 FR 45635, Aug. 15, 2007, as 
amended by Amdt. No. 121–389, 88 FR 41308, 
June 26, 2023] 

§ 121.585 Exit seating. 

(a)(1) Each certificate holder shall 

determine, to the extent necessary to 
perform the applicable functions of 
paragraph (d) of this section, the suit-
ability of each person it permits to oc-
cupy an exit seat, in accordance with 
this section. For the purpose of this 
section— 

(i) 

Exit seat 

means— 

(A) Each seat having direct access to 

an exit; and, 

(B) Each seat in a row of seats 

through which passengers would have 
to pass to gain access to an exit, from 
the first seat inboard of the exit to the 
first aisle inboard of the exit. 

(ii) A passenger seat having ‘‘direct 

access’’ means a seat from which a pas-
senger can proceed directly to the exit 
without entering an aisle or passing 
around an obstruction. 

(2) Each certificate holder shall make 

the passenger exit seating determina-
tions required by this paragraph in a 
non-discriminatory manner consistent 
with the requirements of this section, 
by persons designated in the certificate 
holder’s required operations manual. 

(3) Each certificate holder shall des-

ignate the exit seats for each passenger 
seating configuration in its fleet in ac-
cordance with the definitions in this 
paragraph and submit those designa-
tions for approval as part of the proce-
dures required to be submitted for ap-
proval under paragraphs (n) and (p) of 
this section. 

(b) No certificate holder may seat a 

person in a seat affected by this section 
if the certificate holder determines 
that it is likely that the person would 
be unable to perform one or more of 
the applicable functions listed in para-
graph (d) of this section because— 

(1) The person lacks sufficient mobil-

ity, strength, or dexterity in both arms 
and hands, and both legs: 

(i) To reach upward, sideways, and 

downward to the location of emergency 
exit and exit-slide operating mecha-
nisms; 

background image

225 

Federal Aviation Administration, DOT 

§ 121.585 

(ii) To grasp and push, pull, turn, or 

otherwise manipulate those mecha-
nisms; 

(iii) To push, shove, pull, or other-

wise open emergency exits; 

(iv) To lift out, hold, deposit on near-

by seats, or maneuver over the 
seatbacks to the next row objects the 
size and weight of over-wing window 
exit doors; 

(v) To remove obstructions similar in 

size and weight to over-wing exit doors; 

(vi) To reach the emergency exit ex-

peditiously; 

(vii) To maintain balance while re-

moving obstructions; 

(viii) To exit expeditiously; 
(ix) To stabilize an escape slide after 

deployment; or 

(x) To assist others in getting off an 

escape slide; 

(2) The person is less than 15 years of 

age or lacks the capacity to perform 
one or more of the applicable functions 
listed in paragraph (d) of this section 
without the assistance of an adult com-
panion, parent, or other relative; 

(3) The person lacks the ability to 

read and understand instructions re-
quired by this section and related to 
emergency evacuation provided by the 
certificate holder in printed or graphic 
form or the ability to understand oral 
crew commands. 

(4) The person lacks sufficient visual 

capacity to perform one or more of the 
applicable functions in paragraph (d) of 
this section without the assistance of 
visual aids beyond contact lenses or 
eyeglasses; 

(5) The person lacks sufficient aural 

capacity to hear and understand in-
structions shouted by flight attend-
ants, without assistance beyond a hear-
ing aid; 

(6) The person lacks the ability ade-

quately to impart information orally 
to other passengers; or, 

(7) The person has: 
(i) A condition or responsibilities, 

such as caring for small children, that 
might prevent the person from per-
forming one or more of the applicable 
functions listed in paragraph (d) of this 
section; or 

(ii) A condition that might cause the 

person harm if he or she performs one 
or more of the applicable functions 
listed in paragraph (d) of this section. 

(c) Each passenger shall comply with 

instructions given by a crewmember or 
other authorized employee of the cer-
tificate holder implementing exit seat-
ing restrictions established in accord-
ance with this section. 

(d) Each certificate holder shall in-

clude on passenger information cards, 
presented in the language in which 
briefings and oral commands are given 
by the crew, at each exit seat affected 
by this section, information that, in 
the event of an emergency in which a 
crewmember is not available to assist, 
a passenger occupying an exit seat may 
use if called upon to perform the fol-
lowing functions: 

(1) Locate the emergency exit; 
(2) Recognize the emergency exit 

opening mechanism; 

(3) Comprehend the instructions for 

operating the emergency exit; 

(4) Operate the emergency exit; 
(5) Assess whether opening the emer-

gency exit will increase the hazards to 
which passengers may be exposed; 

(6) Follow oral directions and hand 

signals given by a crewmember; 

(7) Stow or secure the emergency exit 

door so that it will not impede use of 
the exit; 

(8) Assess the condition of an escape 

slide, activate the slide, and stabilize 
the slide after deployment to assist 
others in getting off the slide; 

(9) Pass expeditiously through the 

emergency exit; and 

(10) Assess, select, and follow a safe 

path away from the emergency exit. 

(e) Each certificate holder shall in-

clude on passenger information cards, 
at each exit seat— 

(1) In the primary language in which 

emergency commands are given by the 
crew, the selection criteria set forth in 
paragraph (b) of this section, and a re-
quest that a passenger identify himself 
or herself to allow reseating if he or 
she: 

(i) Cannot meet the selection criteria 

set forth in paragraph (b) of this sec-
tion; 

(ii) Has a nondiscernible condition 

that will prevent him or her from per-
forming the applicable functions listed 
in paragraph (d) of this section; 

(iii) May suffer bodily harm as the re-

sult of performing one or more of those 
functions; or 

background image

226 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.585 

(iv) Does not wish to perform those 

functions; and 

(2) In each language used by the cer-

tificate holder for passenger informa-
tion cards, a request that a passenger 
identify himself or herself to allow re-
seating if he or she lacks the ability to 
read, speak, or understand the lan-
guage or the graphic form in which in-
structions required by this section and 
related to emergency evacuation are 
provided by the certificate holder, or 
the ability to understand the specified 
language in which crew commands will 
be given in an emergency. 

(3) May suffer bodily harm as the re-

sult of performing one or more of those 
functions; or, 

(4) Does not wish to perform those 

functions. 

A certificate holder shall not require 
the passenger to disclose his or her rea-
son for needing reseating. 

(f) Each certificate holder shall make 

available for inspection by the public 
at all passenger loading gates and tick-
et counters at each airport where it 
conducts passenger operations, written 
procedures established for making de-
terminations in regard to exit row 
seating. 

(g) No certificate holder may allow 

taxi or pushback unless at least one re-
quired crewmember has verified that 
no exit seat is occupied by a person the 
crewmember determines is likely to be 
unable to perform the applicable func-
tions listed in paragraph (d) of this sec-
tion. 

(h) Each certificate holder shall in-

clude in its passenger briefings a ref-
erence to the passenger information 
cards, required by paragraphs (d) and 
(e), the selection criteria set forth in 
paragraph (b), and the functions to be 
performed, set forth in paragraph (d) of 
this section. 

(i) Each certificate holder shall in-

clude in its passenger briefings a re-
quest that a passenger identify himself 
or herself to allow reseating if he or 
she— 

(1) Cannot meet the selection criteria 

set forth in paragraph (b) of this sec-
tion; 

(2) Has a nondiscernible condition 

that will prevent him or her from per-
forming the applicable functions listed 
in paragraph (d) of this section; 

(3) May suffer bodily harm as the re-

sult of performing one or more of those 
functions listed in paragraph (d) of this 
section; or, 

(4) Does not wish to perform those 

functions listed in paragraph (d) of this 
section. 

A certificate holder shall not require 
the passenger to disclose his or her rea-
son for needing reseating. 

(j) [Reserved] 
(k) In the event a certificate holder 

determines in accordance with this sec-
tion that it is likely that a passenger 
assigned to an exit seat would be un-
able to perform the functions listed in 
paragraph (d) of this section or a pas-
senger requests a non-exit seat, the 
certificate holder shall expeditiously 
relocate the passenger to a non-exit 
seat. 

(l) In the event of full booking in the 

non-exit seats and if necessary to ac-
commodate a passenger being relocated 
from an exit seat, the certificate hold-
er shall move a passenger who is will-
ing and able to assume the evacuation 
functions that may be required, to an 
exit seat. 

(m) A certificate holder may deny 

transportation to any passenger under 
this section only because— 

(1) The passenger refuses to comply 

with instructions given by a crew-
member or other authorized employee 
of the certificate holder implementing 
exit seating restrictions established in 
accordance with this section, or 

(2) The only seat that will physically 

accommodate the person’s handicap is 
an exit seat. 

(n) In order to comply with this sec-

tion certificate holders shall— 

(1) Establish procedures that address: 
(i) The criteria listed in paragraph 

(b) of this section; 

(ii) The functions listed in paragraph 

(d) of this section; 

(iii) The requirements for airport in-

formation, passenger information 
cards, crewmember verification of ap-
propriate seating in exit seats, pas-
senger briefings, seat assignments, and 
denial of transportation as set forth in 
this section; 

(iv) How to resolve disputes arising 

from implementation of this section, 
including identification of the certifi-
cate holder employee on the airport to 

background image

227 

Federal Aviation Administration, DOT 

§ 121.589 

whom complaints should be addressed 
for resolution; and, 

(2) Submit their procedures for pre-

liminary review and approval to the 
principal operations inspectors as-
signed to them at the responsible 
Flight Standards office. 

(o) Certificate holders shall assign 

seats prior to boarding consistent with 
the criteria listed in paragraph (b) and 
the functions listed in paragraph (d) of 
this section, to the maximum extent 
feasible. 

(p) The procedures required by para-

graph (n) of this section will not be-
come effective until final approval is 
granted by the Executive Director, 
Flight Standards Service, Washington, 
DC. Approval will be based solely upon 
the safety aspects of the certificate 
holder’s procedures. 

[Doc. No. 25821, 55 FR 8072, Mar. 6, 1990, as 
amended by Amdt. 121–232, 57 FR 48663, Oct. 
27, 1992; Amdt. 121–253, 61 FR 2614, Jan. 26, 
1996; Docket FAA–2018–0119, Amdt. 121–380, 83 
FR 9172, 9173, Mar. 5, 2018] 

§ 121.586 Authority to refuse transpor-

tation. 

(a) No certificate holder may refuse 

transportation to a passenger on the 
basis that, because the passenger may 
need the assistance of another person 
to move expeditiously to an exit in the 
event of an emergency, his transpor-
tation would or might be inimical to 
safety of flight unless— 

(1) The certificate holder has estab-

lished procedures (including reasonable 
notice requirements) for the carriage 
of passengers who may need the assist-
ance of another person to move expedi-
tiously to an exit in the event of an 
emergency; and 

(2) At least one of the following con-

ditions exist: 

(i) The passenger fails to comply with 

the notice requirements in the certifi-
cate holder’s procedures. 

(ii) The passenger cannot be carried 

in accordance with the certificate hold-
er’s procedures. 

(b) Each certificate holder shall pro-

vide the responsible Flight Standards 
office with a copy of each procedure it 
establishes in accordance with para-
graph (a)(2) of this section. 

(c) Whenever the Administrator finds 

that revisions in the procedures de-

scribed in paragraph (a)(2) of this sec-
tion are necessary in the interest of 
safety or in the public interest, the cer-
tificate holder, after notification by 
the Administrator, shall make those 
revisions in its procedures. Within 30 
days after the certificate holder re-
ceives such notice, it may file a peti-
tion to reconsider the notice with the 
responsible Flight Standards office. 
The filing of a petition to reconsider 
stays the notice pending a decision by 
the Administrator. However, if the Ad-
ministrator finds that there is an 
emergency that requires immediate ac-
tion in the interest of safety in air 
commerce, he may, upon a statement 
of the reasons, require a change effec-
tive without stay. 

(d) Each certificate holder shall 

make available to the public at each 
airport it serves a copy of each proce-
dure it establishes in accordance with 
paragraph (a)(1) of this section. 

[Doc. No. 12881, 42 FR 18394, Apr. 7, 1977, as 
amended by Amdt. 121–174, 46 FR 38051, July 
23, 1981; Amdt. 121–207, 54 FR 39293, Sept. 25, 
1989; Amdt. 121–253, 61 FR 2614, Jan. 26, 1996; 
Docket FAA–2018–0119, Amdt. 121–380, 83 FR 
9172, Mar. 5, 2018] 

§ 121.587 Closing and locking of 

flightcrew compartment door. 

(a) Except as provided in paragraph 

(b) of this section, a pilot in command 
of an airplane that has a lockable 
flightcrew compartment door in ac-
cordance with § 121.313 and that is car-
rying passengers shall ensure that the 
door separating the flightcrew com-
partment from the passenger compart-
ment is closed and locked at all times 
when the aircraft is being operated. 

(b) The provisions of paragraph (a) of 

this section do not apply at any time 
when it is necessary to permit access 
and egress by persons authorized in ac-
cordance with § 121.547 and provided the 
part 119 operator complies with FAA 
approved procedures regarding the 
opening, closing and locking of the 
flightdeck doors. 

[Doc. No. FAA–2001–11032, 67 FR 2128, Jan. 15, 
2002] 

§ 121.589 Carry-on baggage. 

(a) No certificate holder may allow 

the boarding of carry-on baggage on an 

background image

228 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.590 

airplane unless each passenger’s bag-
gage has been scanned to control the 
size and amount carried on board in ac-
cordance with an approved carry-on 
baggage program in its operations 
specifications. In addition, no pas-
senger may board an airplane if his/her 
carry-on baggage exceeds the baggage 
allowance prescribed in the carry-on 
baggage program in the certificate 
holder’s operations specifications. 

(b) No certificate holder may allow 

all passenger entry doors of an airplane 
to be closed in preparation for taxi or 
pushback unless at least one required 
crewmember has verified that each ar-
ticle of baggage is stowed in accord-
ance with this section and § 121.285 (c) 
and (d). 

(c) No certificate holder may allow 

an airplane to take off or land unless 
each article of baggage is stowed: 

(1) In a suitable closet or baggage or 

cargo stowage compartment placarded 
for its maximum weight and providing 
proper restraint for all baggage or 
cargo stowed within, and in a manner 
that does not hinder the possible use of 
any emergency equipment; or 

(2) As provided in § 121.285 (c) and (d); 

or 

(3) Under a passenger seat. 
(d) Baggage, other than articles of 

loose clothing, may not be placed in an 
overhead rack unless that rack is 
equipped with approved restraining de-
vices or doors. 

(e) Each passenger must comply with 

instructions given by crewmembers re-
garding compliance with paragraphs 
(a), (b), (c), (d), and (g) of this section. 

(f) Each passenger seat under which 

baggage is allowed to be stowed shall 
be fitted with a means to prevent arti-
cles of baggage stowed under it from 
sliding forward. In addition, each aisle 
seat shall be fitted with a means to 
prevent articles of baggage stowed 
under it from sliding sideward into the 
aisle under crash impacts severe 
enough to induce the ultimate inertia 
forces specified in the emergency land-
ing condition regulations under which 
the airplane was type certificated. 

(g) In addition to the methods of 

stowage in paragraph (c) of this sec-
tion, flexible travel canes carried by 
blind individuals may be stowed— 

(1) Under any series of connected pas-

senger seats in the same row, if the 
cane does not protrude into an aisle 
and if the cane is flat on the floor; or 

(2) Between a nonemergency exit 

window seat and the fuselage, if the 
cane is flat on the floor; or 

(3) Beneath any two nonemergency 

exit window seats, if the cane is flat on 
the floor; or 

(4) In accordance with any other 

method approved by the Adminis-
trator. 

[Doc. No. 24996, 52 FR 21476, June 5, 1987, as 
amended by Amdt. 121–251, 60 FR 65935, Dec. 
20, 1995] 

§ 121.590 Use of certificated land air-

ports in the United States. 

(a) Except as provided in paragraphs 

(b) or (c) of this section, or unless au-
thorized by the Administrator under 49 
U.S.C. 44706(c), no air carrier and no 
pilot being used by an air carrier may 
operate, in the conduct of a domestic 
type operation, flag type operation, or 
supplemental type operation, an air-
plane at a land airport in any State of 
the United States, the District of Co-
lumbia, or any territory or possession 
of the United States unless that air-
port is certificated under part 139 of 
this chapter. Further, after June 9, 2005 
for Class I airports and after December 
9, 2005 for Class II, III, and IV airports, 
when an air carrier and a pilot being 
used by the air carrier are required to 
operate at an airport certificated under 
part 139 of this chapter, the air carrier 
and the pilot may only operate at that 
airport if the airport is classified under 
part 139 to serve the type airplane to be 
operated and the type of operation to 
be conducted. 

(b)(1) An air carrier and a pilot being 

used by the air carrier in the conduct 
of a domestic type operation, flag type 
operation, or supplemental type oper-
ation may designate and use as a re-
quired alternate airport for departure 
or destination an airport that is not 
certificated under part 139 of this chap-
ter. 

(2) Until December 9, 2005, an air car-

rier and a pilot being used by the air 
carrier in the conduct of domestic type 
operations and flag type operations, 
may operate an airplane designed for 
more than 9 but less than 31 passenger 

background image

229 

Federal Aviation Administration, DOT 

§ 121.590 

seats, at a land airport, in any State of 
the United States, the District of Co-
lumbia, or any territory or possession 
of the United States, that does not 
hold an airport operating certificate 
issued under part 139 of this chapter, 
and that serves small air carrier air-
craft (as defined under ‘‘Air carrier air-
craft’’ and ‘‘Class III airport’’ in § 139.5 
of this Chapter). 

(c) An air carrier and a pilot used by 

the air carrier in conducting a domes-
tic type operation, flag type operation, 
or supplemental type operation may 
operate an airplane at an airport oper-
ated by the U.S. Government that is 
not certificated under part 139 of this 
chapter, only if that airport meets the 
equivalent— 

(1) Safety standards for airports cer-

tificated under part 139 of this chapter; 
and 

(2) Airport classification require-

ments under part 139 to serve the type 
airplane to be operated and the type of 
operation to be conducted. 

(d) An air carrier, a commercial oper-

ator, and a pilot being used by the air 
carrier or the commercial operator— 
when conducting a passenger-carrying 
airplane operation under this part that 
is not a domestic type operation, a flag 
type operation, or a supplemental type 
operation—may operate at a land air-
port not certificated under part 139 of 
this chapter only when the following 
conditions are met: 

(1) The airport is adequate for the 

proposed operation, considering such 
items as size, surface, obstructions, 
and lighting. 

(2) For an airplane carrying pas-

sengers at night, the pilot may not 
take off from, or land at, an airport un-
less— 

(i) The pilot has determined the wind 

direction from an illuminated wind di-
rection indicator or local ground com-
munications or, in the case of takeoff, 
that pilot’s personal observations; and 

(ii) The limits of the area to be used 

for landing or takeoff are clearly 
shown by boundary or runway marker 
lights. If the area to be used for takeoff 
or landing is marked by flare pots or 
lanterns, their use must be authorized 
by the Administrator. 

(e) A commercial operator and a pilot 

used by the commercial operator in 

conducting a domestic type operation, 
flag type operation, or supplemental 
type operation may operate an airplane 
at an airport operated by the U.S. Gov-
ernment that is not certificated under 
part 139 of this chapter only if that air-
port meets the equivalent— 

(1) Safety standards for airports cer-

tificated under part 139 of this chapter; 
and 

(2) Airport classification require-

ments under part 139 of this chapter to 
serve the type airplane to be operated 
and the type of operation to be con-
ducted. 

(f) For the purpose of this section, 

the terms— 

Domestic type operation 

means any do-

mestic operation conducted with— 

(1) An airplane designed for at least 

31 passenger seats (as determined by 
the aircraft type certificate issued by a 
competent civil aviation authority) at 
any land airport in any State of the 
United States, the District of Colum-
bia, or any territory or possession of 
the United States; or 

(2) An airplane designed for more 

than 9 passenger seats but less than 31 
passenger seats (as determined by the 
aircraft type certificate issued by a 
competent civil aviation authority) at 
any land airport in any State of the 
United States (except Alaska), the Dis-
trict of Columbia, or any territory or 
possession of the United States. 

Flag type operation 

means any flag op-

eration conducted with— 

(1) An airplane designed for at least 

31 passenger seats (as determined by 
the aircraft type certificate issued by a 
competent civil aviation authority) at 
any land airport in any State of the 
United States, the District of Colum-
bia, or any territory or possession of 
the United States; or 

(2) An airplane designed for more 

than 9 passenger seats but less than 31 
passenger seats (as determined by the 
aircraft type certificate issued by a 
competent civil aviation authority) at 
any land airport in any State of the 
United States (except Alaska), the Dis-
trict of Columbia, or any territory or 
possession of the United States. 

Supplemental type operation 

means 

any supplemental operation (except an 
all-cargo operation) conducted with an 

background image

230 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.591 

airplane designed for at least 31 pas-
senger seats (as determined by the air-
craft type certificate issued by a com-
petent civil aviation authority) at any 
land airport in any State of the United 
States, the District of Columbia, or 
any territory or possession of the 
United States. 

United States 

means the States of the 

United States, the District of Colum-
bia, and the territories and possessions 
of the United States. 

N

OTE

: Special Statutory Requirement to 

Operate to or From a Part 139 Airport. Each 
air carrier that provides—in an aircraft (e.g., 
airplane, rotorcraft, etc.) designed for more 
than 9 passenger seats—regularly scheduled 
charter air transportation for which the pub-
lic is provided in advance a schedule con-
taining the departure location, departure 
time, and arrival location of the flight must 
operate to and from an airport certificated 
under part 139 of this chapter in accordance 
with 49 U.S.C. 41104(b). That statutory provi-
sion contains stand-alone requirements for 
such air carriers and special exceptions for 
operations in Alaska and outside the United 
States. Nothing in § 121.590 exempts the air 
carriers described in this note from the re-
quirements of 49 U.S.C. 41104(b). Certain op-
erations by air carriers that conduct public 
charter operations under 14 CFR part 380 are 
covered by the statutory requirements to op-
erate to and from part 139 airports. 

See 

49 

U.S.C. 41104(b). 

[Doc. No. FAA–2000–7479, 69 FR 6424, Feb. 10, 
2004; Amdt. 121–304, 69 FR 31522, June 4, 2004] 

Subpart U—Dispatching and Flight 

Release Rules 

S

OURCE

: Docket No. 6258, 29 FR 19222, Dec. 

31, 1964, unless otherwise noted. 

§ 121.591 Applicability. 

This subpart prescribes dispatching 

rules for domestic and flag operations 
and flight release rules for supple-
mental operations. 

[Doc. No. 28154, 61 FR 2614, Jan. 26, 1996] 

§ 121.593 Dispatching authority: Do-

mestic operations. 

Except when an airplane lands at an 

intermediate airport specified in the 
original dispatch release and remains 
there for not more than one hour, no 
person may start a flight unless an air-
craft dispatcher specifically authorizes 
that flight. 

§ 121.595 Dispatching authority: Flag 

operations. 

(a) No person may start a flight un-

less an aircraft dispatcher specifically 
authorizes that flight. 

(b) No person may continue a flight 

from an intermediate airport without 
redispatch if the airplane has been on 
the ground more than six hours. 

§ 121.597 Flight release authority: Sup-

plemental operations. 

(a) No person may start a flight 

under a flight following system with-
out specific authority from the person 
authorized by the operator to exercise 
operational control over the flight. 

(b) No person may start a flight un-

less the pilot in command or the person 
authorized by the operator to exercise 
operational control over the flight has 
executed a flight release setting forth 
the conditions under which the flights 
will be conducted. The pilot in com-
mand may sign the flight release only 
when he and the person authorized by 
the operator to exercise operational 
control believe that the flight can be 
made with safety. 

(c) No person may continue a flight 

from an intermediate airport without a 
new flight release if the aircraft has 
been on the ground more than six 
hours. 

[Doc. No. 6258, 29 FR 19222, Dec. 31, 1964, as 
amended by Amdt. 121–3, 30 FR 3639, Mar. 19, 
1965] 

§ 121.599 Familiarity with weather 

conditions. 

(a) 

Domestic and flag operations. 

No 

aircraft dispatcher may release a flight 
unless he is thoroughly familiar with 
reported and forecast weather condi-
tions on the route to be flown. 

(b) 

Supplemental operations. 

No pilot 

in command may begin a flight unless 
he is thoroughly familiar with reported 
and forecast weather conditions on the 
route to be flown. 

[Doc. No. 6258, 29 FR 19222, Dec. 31, 1964, as 
amended by Amdt. 121–253, 61 FR 2614, Jan. 
26, 1996] 

§ 121.601 Aircraft dispatcher informa-

tion to pilot in command: Domestic 

and flag operations. 

(a) The aircraft dispatcher shall pro-

vide the pilot in command all available 

background image

231 

Federal Aviation Administration, DOT 

§ 121.613 

current reports or information on air-
port conditions and irregularities of 
navigation facilities that may affect 
the safety of the flight. 

(b) Before beginning a flight, the air-

craft dispatcher shall provide the pilot 
in command with all available weather 
reports and forecasts of weather phe-
nomena that may affect the safety of 
flight, including adverse weather phe-
nomena, such as clear air turbulence, 
thunderstorms, and low altitude wind 
shear, for each route to be flown and 
each airport to be used. 

(c) During a flight, the aircraft dis-

patcher shall provide the pilot in com-
mand any additional available infor-
mation of meteorological conditions 
(including adverse weather phenomena, 
such as clear air turbulence, thunder-
storms, and low altitude wind shear), 
and irregularities of facilities and serv-
ices that may affect the safety of the 
flight. 

[Doc. No. 6258, 29 FR 19222, Dec. 31, 1964, as 
amended by Amdt. 121–134, 42 FR 27573, May 
31, 1977; Amdt. 121–144, 43 FR 22649, May 25, 
1978; Amdt. 121–253, 61 FR 2614, Jan. 26, 1996] 

§ 121.603 Facilities and services: Sup-

plemental operations. 

(a) Before beginning a flight, each 

pilot in command shall obtain all 
available current reports or informa-
tion on airport conditions and irreg-
ularities of navigation facilities that 
may affect the safety of the flight. 

(b) During a flight, the pilot in com-

mand shall obtain any additional avail-
able information of meteorological 
conditions and irregularities of facili-
ties and services that may affect the 
safety of the flight. 

§ 121.605 Airplane equipment. 

No person may dispatch or release an 

airplane unless it is airworthy and is 
equipped as prescribed in § 121.303. 

§ 121.607 Communication and naviga-

tion facilities: Domestic and flag op-

erations. 

(a) Except as provided in paragraph 

(b) of this section for a certificate hold-
er conducting flag operations, no per-
son may dispatch an airplane over an 
approved route or route segment unless 
the communication and navigation fa-
cilities required by §§ 121.99 and 121.103 

for the approval of that route or seg-
ment are in satisfactory operating con-
dition. 

(b) If, because of technical reasons or 

other reasons beyond the control of a 
certificate holder conducting flag oper-
ations, the facilities required by 
§§ 121.99 and 121.103 are not available 
over a route or route segment outside 
the United States, the certificate hold-
er may dispatch an airplane over that 
route or route segment if the pilot in 
command and dispatcher find that 
communication and navigation facili-
ties equal to those required are avail-
able and are in satisfactory operating 
condition. 

[Doc. No. 6258, 29 FR 19222, Dec. 31, 1964, as 
amended by Amdt. 121–253, 61 FR 2614, Jan. 
26, 1996] 

§ 121.609 Communication and naviga-

tion facilities: Supplemental oper-
ations. 

No person may release an aircraft 

over any route or route segment unless 
communication and navigation facili-
ties equal to those required by § 121.121 
are in satisfactory operating condition. 

§ 121.611 Dispatch or flight release 

under VFR. 

No person may dispatch or release an 

aircraft for VFR operation unless the 
ceiling and visibility en route, as indi-
cated by available weather reports or 
forecasts, or any combination thereof, 
are and will remain at or above appli-
cable VFR minimums until the aircraft 
arrives at the airport or airports speci-
fied in the dispatch or flight release. 

§ 121.613 Dispatch or flight release 

under IFR or over the top. 

Except as provided in § 121.615, no per-

son may dispatch or release an aircraft 
for operations under IFR or over-the- 
top, unless appropriate weather reports 
or forecasts, or any combination there-
of, indicate that the weather condi-
tions will be at or above the authorized 
minimums at the estimated time of ar-
rival at the airport or airports to 
which dispatched or released. 

[Doc. No. 6258, 29 FR 19222, Dec. 31, 1964, as 
amended by Amdt. 121–33, 32 FR 13912, Oct. 6, 
1967] 

background image

232 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.615 

§ 121.615 Dispatch or flight release 

over water: Flag and supplemental 

operations. 

(a) No person may dispatch or release 

an aircraft for a flight that involves ex-
tended overwater operation unless ap-
propriate weather reports or forecasts 
or any combination thereof, indicate 
that the weather conditions will be at 
or above the authorized minimums at 
the estimated time of arrival at any 
airport to which dispatched or released 
or to any required alternate airport. 

(b) Each certificate holder con-

ducting a flag or supplemental oper-
ation or a domestic operation within 
the State of Alaska shall conduct ex-
tended overwater operations under IFR 
unless it shows that operating under 
IFR is not necessary for safety. 

(c) Each certificate holder con-

ducting a flag or supplemental oper-
ation or a domestic operation within 
the State of Alaska shall conduct other 
overwater operations under IFR if the 
Administrator determines that oper-
ation under IFR is necessary for safety. 

(d) Each authorization to conduct ex-

tended overwater operations under 
VFR and each requirement to conduct 
other overwater operations under IFR 
will be specified in the certificate hold-
er’s operations specifications. 

[Doc. No. 6258, 29 FR 19222, Dec. 31, 1964, as 
amended by Amdt. 121–33, 32 FR 13912, Oct. 6, 
1967; Amdt. 121–253, 61 FR 2614, Jan. 26, 1996] 

§ 121.617 Alternate airport for depar-

ture. 

(a) If the weather conditions at the 

airport of takeoff are below the landing 
minimums in the certificate holder’s 
operations specifications for that air-
port, no person may dispatch or release 
an aircraft from that airport unless the 
dispatch or flight release specifies an 
alternate airport located within the 
following distances from the airport of 
takeoff: 

(1) 

Aircraft having two engines. 

Not 

more than one hour from the departure 
airport at normal cruising speed in 
still air with one engine inoperative. 

(2) 

Aircraft having three or more en-

gines. 

Not more than two hours from 

the departure airport at normal cruis-
ing speed in still air with one engine 
inoperative. 

(b) For the purpose of paragraph (a) 

of this section, the alternate airport 
weather conditions must meet the re-
quirements of the certificate holder’s 
operations specifications. 

(c) No person may dispatch or release 

an aircraft from an airport unless he 
lists each required alternate airport in 
the dispatch or flight release. 

§ 121.619 Alternate airport for destina-

tion: IFR or over-the-top: Domestic 

operations. 

(a) No person may dispatch an air-

plane under IFR or over-the-top unless 
he lists at least one alternate airport 
for each destination airport in the dis-
patch release. When the weather condi-
tions forecast for the destination and 
first alternate airport are marginal at 
least one additional alternate must be 
designated. However, no alternate air-
port is required if for at least 1 hour 
before and 1 hour after the estimated 
time of arrival at the destination air-
port the appropriate weather reports or 
forecasts, or any combination of them, 
indicate— 

(1) The ceiling will be at least 2,000 

feet above the airport elevation; and 

(2) Visibility will be at least 3 miles. 
(b) For the purposes of paragraph (a) 

of this section, the weather conditions 
at the alternate airport must meet the 
requirements of § 121.625. 

(c) No person may dispatch a flight 

unless he lists each required alternate 
airport in the dispatch release. 

[Doc. No. 6258, 29 FR 19222, Dec. 31, 1964, as 
amended by Amdt. 121–159, 45 FR 41594, June 
19, 1980] 

§ 121.621 Alternate airport for destina-

tion: Flag operations. 

(a) No person may dispatch an air-

plane under IFR or over-the-top unless 
he lists at least one alternate airport 
for each destination airport in the dis-
patch release, unless— 

(1) The flight is scheduled for not 

more than 6 hours and, for at least 1 
hour before and 1 hour after the esti-
mated time of arrival at the destina-
tion airport, the appropriate weather 
reports or forecasts, or any combina-
tion of them, indicate the ceiling will 
be: 

(i) At least 1,500 feet above the lowest 

circling MDA, if a circling approach is 

background image

233 

Federal Aviation Administration, DOT 

§ 121.625 

required and authorized for that air-
port; or 

(ii) At least 1,500 feet above the low-

est published instrument approach 
minimum or 2,000 feet above the air-
port elevation, whichever is greater; 
and 

(iii) The visibility at that airport will 

be at least 3 miles, or 2 miles more 
than the lowest applicable visibility 
minimums, whichever is greater, for 
the instrument approach procedures to 
be used at the destination airport; or 

(2) The flight is over a route approved 

without an available alternate airport 
for a particular destination airport and 
the airplane has enough fuel to meet 
the requirements of § 121.641(b) or 
§ 121.645(c). 

(b) For the purposes of paragraph (a) 

of this section, the weather conditions 
at the alternate airport must meet the 
requirements of the certificate holder’s 
operations specifications. 

(c) No person may dispatch a flight 

unless he lists each required alternate 
airport in the dispatch release. 

[Doc. No. 6258, 29 FR 19222, Dec. 31, 1964, as 
amended by Amdt. 121–159, 45 FR 41594, June 
19, 1980; Amdt. 121–253, 61 FR 2614, Jan. 26, 
1996] 

§ 121.623 Alternate airport for destina-

tion: IFR or over-the-top: Supple-
mental operations. 

(a) Except as provided in paragraph 

(b) of this section, each person releas-
ing an aircraft for operation under IFR 
or over-the-top shall list at least one 
alternate airport for each destination 
airport in the flight release. 

(b) An alternate airport need not be 

designated for IFR or over-the-top op-
erations where the aircraft carries 
enough fuel to meet the requirements 
of §§ 121.643 and 121.645 for flights out-
side the 48 contiguous States and the 
District of Columbia over routes with-
out an available alternate airport for a 
particular airport of destination. 

(c) For the purposes of paragraph (a) 

of this section, the weather require-
ments at the alternate airport must 
meet the requirements of the certifi-
cate holder’s operations specifications. 

(d) No person may release a flight un-

less he lists each required alternate 
airport in the flight release. 

[Doc. No. 6258, 29 FR 19222, Dec. 31, 1964, as 
amended by Amdt. 121–253, 61 FR 2614, Jan. 
26, 1996] 

§ 121.624 ETOPS Alternate Airports. 

(a) No person may dispatch or release 

an airplane for an ETOPS flight unless 
enough ETOPS Alternate Airports are 
listed in the dispatch or flight release 
such that the airplane remains within 
the authorized ETOPS maximum diver-
sion time. In selecting these ETOPS 
Alternate Airports, the certificate 
holder must consider all adequate air-
ports within the authorized ETOPS di-
version time for the flight that meet 
the standards of this part. 

(b) No person may list an airport as 

an ETOPS Alternate Airport in a dis-
patch or flight release unless, when it 
might be used (from the earliest to the 
latest possible landing time)— 

(1) The appropriate weather reports 

or forecasts, or any combination there-
of, indicate that the weather condi-
tions will be at or above the ETOPS Al-
ternate Airport minima specified in 
the certificate holder’s operations 
specifications; and 

(2) The field condition reports indi-

cate that a safe landing can be made. 

(c) Once a flight is en route, the 

weather conditions at each ETOPS Al-
ternate Airport must meet the require-
ments of § 121.631 (c). 

(d) No person may list an airport as 

an ETOPS Alternate Airport in the dis-
patch or flight release unless that air-
port meets the public protection re-
quirements of § 121.97(b)(1)(ii). 

[Doc. No. FAA–2002–6717, 72 FR 1881, Jan. 16, 
2007] 

§ 121.625 Alternate Airport weather 

minima. 

Except as provided in § 121.624 for 

ETOPS Alternate Airports, no person 
may list an airport as an alternate in 
the dispatch or flight release unless the 
appropriate weather reports or fore-
casts, or any combination thereof, indi-
cate that the weather conditions will 
be at or above the alternate weather 
minima specified in the certificate 

background image

234 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.627 

holder’s operations specifications for 
that airport when the flight arrives. 

[Doc. No. FAA–2002–6717, 72 FR 1881, Jan. 16, 
2007] 

§ 121.627 Continuing flight in unsafe 

conditions. 

(a) No pilot in command may allow a 

flight to continue toward any airport 
to which it has been dispatched or re-
leased if, in the opinion of the pilot in 
command or dispatcher (domestic and 
flag operations only), the flight cannot 
be completed safely; unless, in the 
opinion of the pilot in command, there 
is no safer procedure. In that event, 
continuation toward that airport is an 
emergency situation as set forth in 
§ 121.557. 

(b) If any instrument or item of 

equipment required under this chapter 
for the particular operation becomes 
inoperative en route, the pilot in com-
mand shall comply with the approved 
procedures for such an occurrence as 
specified in the certificate holder’s 
manual. 

[Doc. No. 6258, 29 FR 1922, Dec. 31, 1964, as 
amended by Amdt. 121–222, 56 FR 12310, Mar. 
22, 1991; Amdt. 121–253, 61 FR 2615, Jan. 26, 
1996] 

§ 121.628 Inoperable instruments and 

equipment. 

(a) No person may take off an air-

plane with inoperable instruments or 
equipment installed unless the fol-
lowing conditions are met: 

(1) An approved Minimum Equipment 

List exists for that airplane. 

(2) The responsible Flight Standards 

office has issued the certificate holder 
operations specifications authorizing 
operations in accordance with an ap-
proved Minimum Equipment List. The 
flight crew shall have direct access at 
all times prior to flight to all of the in-
formation contained in the approved 
Minimum Equipment List through 
printed or other means approved by the 
Administrator in the certificate hold-
ers operations specifications. An ap-
proved Minimum Equipment List, as 
authorized by the operations specifica-
tions, constitutes an approved change 
to the type design without requiring 
recertification. 

(3) The approved Minimum Equip-

ment List must: 

(i) Be prepared in accordance with 

the limitations specified in paragraph 
(b) of this section. 

(ii) Provide for the operation of the 

airplane with certain instruments and 
equipment in an inoperable condition. 

(4) Records identifying the inoperable 

instruments and equipment and the in-
formation required by paragraph 
(a)(3)(ii) of this section must be avail-
able to the pilot. 

(5) The airplane is operated under all 

applicable conditions and limitations 
contained in the Minimum Equipment 
List and the operations specifications 
authorizing use of the Minimum Equip-
ment List. 

(b) The following instruments and 

equipment may not be included in the 
Minimum Equipment List: 

(1) Instruments and equipment that 

are either specifically or otherwise re-
quired by the airworthiness require-
ments under which the airplane is type 
certificated and which are essential for 
safe operations under all operating 
conditions. 

(2) Instruments and equipment re-

quired by an airworthiness directive to 
be in operable condition unless the air-
worthiness directive provides other-
wise. 

(3) Instruments and equipment re-

quired for specific operations by this 
part. 

(c) Notwithstanding paragraphs (b)(1) 

and (b)(3) of this section, an airplane 
with inoperable instruments or equip-
ment may be operated under a special 
flight permit under §§ 21.197 and 21.199 
of this chapter. 

[Doc. No. 25780, 56 FR 12310, Mar. 22, 1991; 
Amdt. 121–222, 56 FR 14290, Apr. 8, 1991; Amdt. 
121–253, 61 FR 2615, Jan. 26, 1996; Docket 
FAA–2018–0119, Amdt. 121–380, 83 FR 9172, 
Mar. 5, 2018] 

§ 121.629 Operation in icing condi-

tions. 

(a) No person may dispatch or release 

an aircraft, continue to operate an air-
craft en route, or land an aircraft when 
in the opinion of the pilot in command 
or aircraft dispatcher (domestic and 
flag operations only), icing conditions 
are expected or met that might ad-
versely affect the safety of the flight. 

background image

235 

Federal Aviation Administration, DOT 

§ 121.629 

(b) No person may take off an air-

craft when frost, ice, or snow is adher-
ing to the wings, control surfaces, pro-
pellers, engine inlets, or other critical 
surfaces of the aircraft or when the 
takeoff would not be in compliance 
with paragraph (c) of this section. 
Takeoffs with frost under the wing in 
the area of the fuel tanks may be au-
thorized by the Administrator. 

(c) Except as provided in paragraph 

(d) of this section, no person may dis-
patch, release, or take off an aircraft 
any time conditions are such that 
frost, ice, or snow may reasonably be 
expected to adhere to the aircraft, un-
less the certificate holder has an ap-
proved ground deicing/anti-icing pro-
gram in its operations specifications 
and unless the dispatch, release, and 
takeoff comply with that program. The 
approved ground deicing/anti-icing pro-
gram must include at least the fol-
lowing items: 

(1) A detailed description of— 
(i) How the certificate holder deter-

mines that conditions are such that 
frost, ice, or snow may reasonably be 
expected to adhere to the aircraft and 
that ground deicing/anti-icing oper-
ational procedures must be in effect; 

(ii) Who is responsible for deciding 

that ground deicing/anti-icing oper-
ational procedures must be in effect; 

(iii) The procedures for implementing 

ground deicing/anti-icing operational 
procedures; 

(iv) The specific duties and respon-

sibilities of each operational position 
or group responsible for getting the 
aircraft safely airborne while ground 
deicing/anti-icing operational proce-
dures are in effect. 

(2) Initial and annual recurrent 

ground training and testing for flight 
crewmembers and qualification for all 
other affected personnel (e.g., aircraft 
dispatchers, ground crews, contract 
personnel) concerning the specific re-
quirements of the approved program 
and each person’s responsibilities and 
duties under the approved program, 
specifically covering the following 
areas: 

(i) The use of holdover times. 
(ii) Aircraft deicing/anti-icing proce-

dures, including inspection and check 
procedures and responsibilities. 

(iii) Communications procedures. 

(iv) Aircraft surface contamination 

(

i.e.

, adherence of frost, ice, or snow) 

and critical area identification, and 
how contamination adversely affects 
aircraft performance and flight charac-
teristics. 

(v) Types and characteristics of deic-

ing/anti-icing fluids. 

(vi) Cold weather preflight inspection 

procedures; 

(vii) Techniques for recognizing con-

tamination on the aircraft. 

(3) The certificate holder’s holdover 

timetables and the procedures for the 
use of these tables by the certificate 
holder’s personnel. Holdover time is 
the estimated time deicing/anti-icing 
fluid will prevent the formation of 
frost or ice and the accumulation of 
snow on the protected surfaces of an 
aircraft. Holdover time begins when 
the final application of deicing/anti- 
icing fluid commences and expires 
when the deicing/anti-icing fluid ap-
plied to the aircraft loses its effective-
ness. The holdover times must be sup-
ported by data acceptable to the Ad-
ministrator. The certificate holder’s 
program must include procedures for 
flight crewmembers to increase or de-
crease the determined holdover time in 
changing conditions. The program 
must provide that takeoff after exceed-
ing any maximum holdover time in the 
certificate holder’s holdover timetable 
is permitted only when at least one of 
the following conditions exists: 

(i) A pretakeoff contamination 

check, as defined in paragraph (c)(4) of 
this section, determines that the 
wings, control surfaces, and other crit-
ical surfaces, as defined in the certifi-
cate holder’s program, are free of frost, 
ice, or snow. 

(ii) It is otherwise determined by an 

alternate procedure approved by the 
Administrator in accordance with the 
certificate holder’s approved program 
that the wings, control surfaces, and 
other critical surfaces, as defined in 
the certificate holder’s program, are 
free of frost, ice, or snow. 

(iii) The wings, control surfaces, and 

other critical surfaces are redeiced and 
a new holdover time is determined. 

(4) Aircraft deicing/anti-icing proce-

dures and responsibilities, pretakeoff 
check procedures and responsibilities, 
and pretakeoff contamination check 

background image

236 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.631 

procedures and responsibilities. A pre-
takeoff check is a check of the air-
craft’s wings or representative aircraft 
surfaces for frost, ice, or snow within 
the aircraft’s holdover time. A pre-
takeoff contamination check is a check 
to make sure the wings, control sur-
faces, and other critical surfaces, as de-
fined in the certificate holder’s pro-
gram, are free of frost, ice, and snow. It 
must be conducted within five minutes 
prior to beginning take off. This check 
must be accomplished from outside the 
aircraft unless the program specifies 
otherwise. 

(d) A certificate holder may continue 

to operate under this section without a 
program as required in paragraph (c) of 
this section, if it includes in its oper-
ations specifications a requirement 
that, any time conditions are such that 
frost, ice, or snow may reasonably be 
expected to adhere to the aircraft, no 
aircraft will take off unless it has been 
checked to ensure that the wings, con-
trol surfaces, and other critical sur-
faces are free of frost, ice, and snow. 
The check must occur within five min-
utes prior to beginning takeoff. This 
check must be accomplished from out-
side the aircraft. 

[Doc. No. 6258, 29 FR 19222, Dec. 31, 1964, as 
amended by Amdt. 121–231, 57 FR 44942, Sept. 
29, 1992; Amdt. 121–253, 61 FR 2615, Jan. 26, 
1996] 

§ 121.631 Original dispatch or flight re-

lease, redispatch or amendment of 

dispatch or flight release. 

(a) A certificate holder may specify 

any regular, provisional, or refueling 
airport, authorized for the type of air-
craft, as a destination for the purpose 
of original dispatch or release. 

(b) No person may allow a flight to 

continue to an airport to which it has 
been dispatched or released unless the 
weather conditions at an alternate air-
port that was specified in the dispatch 
or flight release are forecast to be at or 
above the alternate minimums speci-
fied in the operations specifications for 
that airport at the time the aircraft 
would arrive at the alternate airport. 
However, the dispatch or flight release 
may be amended en route to include 
any alternate airport that is within the 
fuel range of the aircraft as specified in 
§§ 121.639 through 121.647. 

(c) No person may allow a flight to 

continue beyond the ETOPS Entry 
Point unless— 

(1) Except as provided in paragraph 

(d) of this section, the weather condi-
tions at each ETOPS Alternate Airport 
required by § 121.624 are forecast to be 
at or above the operating minima for 
that airport in the certificate holder’s 
operations specifications when it 
might be used (from the earliest to the 
latest possible landing time); and 

(2) All ETOPS Alternate Airports 

within the authorized ETOPS max-
imum diversion time are reviewed and 
the flight crew advised of any changes 
in conditions that have occurred since 
dispatch. 

(d) If paragraph (c)(1) of this section 

cannot be met for a specific airport, 
the dispatch or flight release may be 
amended to add an ETOPS Alternate 
Airport within the maximum ETOPS 
diversion time that could be authorized 
for that flight with weather conditions 
at or above operating minima. 

(e) Before the ETOPS Entry Point, 

the pilot in command for a supple-
mental operator or a dispatcher for a 
flag operator must use company com-
munications to update the flight plan 
if needed because of a re-evaluation of 
aircraft system capabilities. 

(f) No person may change an original 

destination or alternate airport that is 
specified in the original dispatch or 
flight release to another airport while 
the aircraft is en route unless the other 
airport is authorized for that type of 
aircraft and the appropriate require-
ments of §§ 121.593 through 121.661 and 
121.173 are met at the time of redis-
patch or amendment of the flight re-
lease. 

(g) Each person who amends a dis-

patch or flight release en route shall 
record that amendment. 

[Doc. No. 628, 29 FR 19222, Dec. 31, 1964, as 
amended by Amdt. 121–65, 35 FR 12709, Aug. 
11, 1970; Amdt. 121–329, 72 FR 1881, Jan. 16, 
2007] 

§ 121.633 Considering time-limited sys-

tems in planning ETOPS alternates. 

(a) For ETOPS up to and including 

180 minutes, no person may list an air-
port as an ETOPS Alternate Airport in 
a dispatch or flight release if the time 

background image

237 

Federal Aviation Administration, DOT 

§ 121.639 

needed to fly to that airport (at the ap-
proved one-engine inoperative cruise 
speed under standard conditions in still 
air) would exceed the approved time for 
the airplane’s most limiting ETOPS 
Significant System (including the air-
plane’s most limiting fire suppression 
system time for those cargo and bag-
gage compartments required by regula-
tion to have fire-suppression systems) 
minus 15 minutes. 

(b) For ETOPS beyond 180 minutes, 

no person may list an airport as an 
ETOPS Alternate Airport in a dispatch 
or flight release if the time needed to 
fly to that airport: 

(1) at the all engine operating cruise 

speed, corrected for wind and tempera-
ture, exceeds the airplane’s most lim-
iting fire suppression system time 
minus 15 minutes for those cargo and 
baggage compartments required by reg-
ulation to have fire suppression sys-
tems (except as provided in paragraph 
(c) of this section), or 

(2) at the one-engine-inoperative 

cruise speed, corrected for wind and 
temperature, exceeds the airplane’s 
most limiting ETOPS Significant Sys-
tem time (other than the airplane’s 
most limiting fire suppression system 
time minus 15 minutes for those cargo 
and baggage compartments required by 
regulation to have fire-suppression sys-
tems). 

(c) For turbine-engine powered air-

planes with more than two engines, the 
certificate holder need not meet para-
graph (b)(1) of this section until Feb-
ruary 15, 2013. 

[Doc. No. FAA–2002–6717, 72 FR 1882, Jan. 16, 
2007] 

§ 121.635 Dispatch to and from refuel-

ing or provisional airports: Domes-
tic and flag operations. 

No person may dispatch an airplane 

to or from a refueling or provisional 
airport except in accordance with the 
requirements of this part applicable to 
dispatch from regular airports and un-
less that airport meets the require-
ments of this part applicable to regular 
airports. 

[Doc. No. 16383, 43 FR 22649, May 25, 1978] 

§ 121.637 Takeoffs from unlisted and 

alternate airports: Domestic and 

flag operations. 

(a) No pilot may takeoff an airplane 

from an airport that is not listed in the 
operations specifications unless— 

(1) The airport and related facilities 

are adequate for the operation of the 
airplane; 

(2) He can comply with the applicable 

airplane operating limitations; 

(3) The airplane has been dispatched 

according to dispatching rules applica-
ble to operation from an approved air-
port; and 

(4) The weather conditions at that 

airport are equal to or better than the 
following: 

(i) 

Airports in the United States. 

The 

weather minimums for takeoff pre-
scribed in part 97 of this chapter; or 
where minimums are not prescribed for 
the airport, 800–2, 900–1

1

2

, or 1,000–1. 

(ii) 

Airports outside the United States. 

The weather minimums for takeoff pre-
scribed or approved by the government 
of the country in which the airport is 
located; or where minimums are not 
prescribed or approved for the airport, 
800–2, 900–1

1

2

, or 1,000–1. 

(b) No pilot may take off from an al-

ternate airport unless the weather con-
ditions are at least equal to the mini-
mums prescribed in the certificate 
holder’s operations specifications for 
alternate airports. 

[Doc. No. 6258, 29 FR 19222, Dec. 31, 1964, as 
amended by Amdt. 121–33, 32 FR 13912, Oct. 6, 
1967; Amdt. 121–253, 61 FR 2615, Jan. 26, 1996] 

§ 121.639 Fuel supply: All domestic op-

erations. 

No person may dispatch or take off 

an airplane unless it has enough fuel— 

(a) To fly to the airport to which it is 

dispatched; 

(b) Thereafter, to fly to and land at 

the most distant alternate airport 
(where required) for the airport to 
which dispatched; and 

(c) Thereafter, to fly for 45 minutes 

at normal cruising fuel consumption 
or, for certificate holders who are au-
thorized to conduct day VFR oper-
ations in their operations specifica-
tions and who are operating non-
transport category airplanes type cer-
tificated after December 31, 1964, to fly 

background image

238 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.641 

for 30 minutes at normal cruising fuel 
consumption for day VFR operations. 

[Doc. No. 6258, 29 FR 19222, Dec. 31, 1964, as 
amended by Amdt. 121–251, 60 FR 65935, Dec. 
20, 1995] 

§ 121.641 Fuel supply: Nonturbine and 

turbo-propeller-powered airplanes: 

Flag operations. 

(a) No person may dispatch or take 

off a nonturbine or turbo-propeller- 
powered airplane unless, considering 
the wind and other weather conditions 
expected, it has enough fuel— 

(1) To fly to and land at the airport 

to which it is dispatched; 

(2) Thereafter, to fly to and land at 

the most distant alternate airport 
specified in the dispatch release; and 

(3) Thereafter, to fly for 30 minutes 

plus 15 percent of the total time re-
quired to fly at normal cruising fuel 
consumption to the airports specified 
in paragraphs (a) (1) and (2) of this sec-
tion or to fly for 90 minutes at normal 
cruising fuel consumption, whichever 
is less. 

(b) No person may dispatch a nontur-

bine or turbo-propeller-powered air-
plane to an airport for which an alter-
nate is not specified under 
§ 121.621(a)(2), unless it has enough fuel, 
considering wind and forecast weather 
conditions, to fly to that airport and 
thereafter to fly for three hours at nor-
mal cruising fuel consumption. 

§ 121.643 Fuel supply: Nonturbine and 

turbo-propeller-powered airplanes: 

Supplemental operations. 

(a) Except as provided in paragraph 

(b) of this section, no person may re-
lease for flight or takeoff a nonturbine 
or turbo-propeller-powered airplane un-
less, considering the wind and other 
weather conditions expected, it has 
enough fuel— 

(1) To fly to and land at the airport 

to which it is released; 

(2) Thereafter, to fly to and land at 

the most distant alternate airport 
specified in the flight release; and 

(3) Thereafter, to fly for 45 minutes 

at normal cruising fuel consumption 
or, for certificate holders who are au-
thorized to conduct day VFR oper-
ations in their operations specifica-
tions and who are operating non-
transport category airplanes type cer-

tificated after December 31, 1964, to fly 
for 30 minutes at normal cruising fuel 
consumption for day VFR operations. 

(b) If the airplane is released for any 

flight other than from one point in the 
contiguous United States to another 
point in the contiguous United States, 
it must carry enough fuel to meet the 
requirements of paragraphs (a) (1) and 
(2) of this section and thereafter fly for 
30 minutes plus 15 percent of the total 
time required to fly at normal cruising 
fuel consumption to the airports speci-
fied in paragraphs (a) (1) and (2) of this 
section, or to fly for 90 minutes at nor-
mal cruising fuel consumption, which-
ever is less. 

(c) No person may release a nontur-

bine or turbo-propeller-powered air-
plane to an airport for which an alter-
nate is not specified under § 121.623(b), 
unless it has enough fuel, considering 
wind and other weather conditions ex-
pected, to fly to that airport and there-
after to fly for three hours at normal 
cruising fuel consumption. 

[Doc. No. 6258, 29 FR 19222, Dec. 31, 1964, as 
amended by Amdt. 121–10, 30 FR 10025, Aug. 
12, 1965; Amdt. 121–251, 60 FR 65935, Dec. 20, 
1995] 

§ 121.645 Fuel supply: Turbine-engine 

powered airplanes, other than 
turbo propeller: Flag and supple-
mental operations. 

(a) Any flag operation within the 48 

contiguous United States and the Dis-
trict of Columbia may use the fuel re-
quirements of § 121.639. 

(b) For any certificate holder con-

ducting flag or supplemental oper-
ations outside the 48 contiguous United 
States and the District of Columbia, 
unless authorized by the Administrator 
in the operations specifications, no per-
son may release for flight or takeoff a 
turbine-engine powered airplane (other 
than a turbo-propeller powered air-
plane) unless, considering wind and 
other weather conditions expected, it 
has enough fuel— 

(1) To fly to and land at the airport 

to which it is released; 

(2) After that, to fly for a period of 10 

percent of the total time required to 
fly from the airport of departure to, 
and land at, the airport to which it was 
released; 

background image

239 

Federal Aviation Administration, DOT 

§ 121.646 

(3) After that, to fly to and land at 

the most distant alternate airport 
specified in the flight release, if an al-
ternate is required; and 

(4) After that, to fly for 30 minutes at 

holding speed at 1,500 feet above the al-
ternate airport (or the destination air-
port if no alternate is required) under 
standard temperature conditions. 

(c) No person may release a turbine- 

engine powered airplane (other than a 
turbo-propeller airplane) to an airport 
for which an alternate is not specified 
under § 121.621(a)(2) or § 121.623(b) unless 
it has enough fuel, considering wind 
and other weather conditions expected, 
to fly to that airport and thereafter to 
fly for at least two hours at normal 
cruising fuel consumption. 

(d) The Administrator may amend 

the operations specifications of a cer-
tificate holder conducting flag or sup-
plemental operations to require more 
fuel than any of the minimums stated 
in paragraph (a) or (b) of this section if 
he finds that additional fuel is nec-
essary on a particular route in the in-
terest of safety. 

(e) For a supplemental operation 

within the 48 contiguous States and 
the District of Columbia with a turbine 
engine powered airplane the fuel re-
quirements of § 121.643 apply. 

[Doc. No. 6258, 29 FR 19222, Dec. 31, 1964, as 
amended by Amdt. 121–10, 30 FR 10025, Aug. 
12, 1965; Amdt. 121–144, 43 FR 22649, May 25, 
1978; Amdt. 121–253, 61 FR 2615, Jan. 26, 1996] 

§ 121.646 En-route fuel supply: flag and 

supplemental operations. 

(a) No person may dispatch or release 

for flight a turbine-engine powered air-
plane with more than two engines for a 
flight more than 90 minutes (with all 
engines operating at cruise power) 
from an Adequate Airport unless the 
following fuel supply requirements are 
met: 

(1) The airplane has enough fuel to 

meet the requirements of § 121.645(b); 

(2) The airplane has enough fuel to 

fly to the Adequate Airport— 

(i) Assuming a rapid decompression 

at the most critical point; 

(ii) Assuming a descent to a safe alti-

tude in compliance with the oxygen 
supply requirements of § 121.333; and 

(iii) Considering expected wind and 

other weather conditions. 

(3) The airplane has enough fuel to 

hold for 15 minutes at 1500 feet above 
field elevation and conduct a normal 
approach and landing. 

(b) No person may dispatch or release 

for flight an ETOPS flight unless, con-
sidering wind and other weather condi-
tions expected, it has the fuel other-
wise required by this part and enough 
fuel to satisfy each of the following re-
quirements: 

(1) Fuel to fly to an ETOPS Alternate 

Airport. 

(i) Fuel to account for rapid decom-

pression and engine failure. The air-
plane must carry the greater of the fol-
lowing amounts of fuel: 

(A) Fuel sufficient to fly to an 

ETOPS Alternate Airport assuming a 
rapid decompression at the most crit-
ical point followed by descent to a safe 
altitude in compliance with the oxygen 
supply requirements of § 121.333 of this 
chapter; 

(B) Fuel sufficient to fly to an 

ETOPS Alternate Airport (at the one- 
engine-inoperative cruise speed) as-
suming a rapid decompression and a si-
multaneous engine failure at the most 
critical point followed by descent to a 
safe altitude in compliance with the 
oxygen requirements of § 121.333 of this 
chapter; or 

(C) Fuel sufficient to fly to an 

ETOPS Alternate Airport (at the one 
engine inoperative cruise speed) assum-
ing an engine failure at the most crit-
ical point followed by descent to the 
one engine inoperative cruise altitude. 

(ii) Fuel to account for errors in wind 

forecasting. In calculating the amount 
of fuel required by paragraph (b)(1)(i) of 
this section, the certificate holder 
must increase the actual forecast wind 
speed by 5% (resulting in an increase in 
headwind or a decrease in tailwind) to 
account for any potential errors in 
wind forecasting. If a certificate holder 
is not using the actual forecast wind 
based on a wind model accepted by the 
FAA, the airplane must carry addi-
tional fuel equal to 5% of the fuel re-
quired for paragraph (b)(1)(i) of this 
section, as reserve fuel to allow for er-
rors in wind data. 

(iii) Fuel to account for icing. In cal-

culating the amount of fuel required by 
paragraph (b)(1)(i) of this section (after 
completing the wind calculation in 

background image

240 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.647 

paragraph (b)(1)(ii) of this section), the 
certificate holder must ensure that the 
airplane carries the greater of the fol-
lowing amounts of fuel in anticipation 
of possible icing during the diversion: 

(A) Fuel that would be burned as a 

result of airframe icing during 10 per-
cent of the time icing is forecast (in-
cluding the fuel used by engine and 
wing anti-ice during this period). 

(B) Fuel that would be used for en-

gine anti-ice, and if appropriate wing 
anti-ice, for the entire time during 
which icing is forecast. 

(iv) Fuel to account for engine dete-

rioration. In calculating the amount of 
fuel required by paragraph (b)(1)(i) of 
this section (after completing the wind 
calculation in paragraph (b)(1)(ii) of 
this section), the airplane also carries 
fuel equal to 5% of the fuel specified 
above, to account for deterioration in 
cruise fuel burn performance unless the 
certificate holder has a program to 
monitor airplane in-service deteriora-
tion to cruise fuel burn performance. 

(2) Fuel to account for holding, ap-

proach, and landing. In addition to the 
fuel required by paragraph (b)(1) of this 
section, the airplane must carry fuel 
sufficient to hold at 1500 feet above 
field elevation for 15 minutes upon 
reaching an ETOPS Alternate Airport 
and then conduct an instrument ap-
proach and land. 

(3) Fuel to account for APU use. If an 

APU is a required power source, the 
certificate holder must account for its 
fuel consumption during the appro-
priate phases of flight. 

[Doc. No. FAA–2002–6717, 72 FR 1882, Jan. 16, 
2007, as amended by Amdt. 121–348, 75 FR 
12121, Mar. 15, 2010] 

§ 121.647 Factors for computing fuel 

required. 

Each person computing fuel required 

for the purposes of this subpart shall 
consider the following: 

(a) Wind and other weather condi-

tions forecast. 

(b) Anticipated traffic delays. 
(c) One instrument approach and pos-

sible missed approach at destination. 

(d) Any other conditions that may 

delay landing of the aircraft. 

For the purposes of this section, re-
quired fuel is in addition to unusable 
fuel. 

§ 121.649 Takeoff and landing weather 

minimums: VFR: Domestic oper-

ations. 

(a) Except as provided in paragraph 

(b) of this section, regardless of any 
clearance from ATC, no pilot may 
takeoff or land an airplane under VFR 
when the reported ceiling or visibility 
is less than the following: 

(1) For day operations—1,000-foot 

ceiling and one-mile visibility. 

(2) For night operations—1,000-foot 

ceiling and two-mile visibility. 

(b) Where a local surface restriction 

to visibility exists (e.g., smoke, dust, 
blowing snow or sand) the visibility for 
day and night operations may be re-
duced to 

1

2

mile, if all turns after take-

off and prior to landing, and all flight 
beyond one mile from the airport 
boundary can be accomplished above or 
outside the area of local surface visi-
bility restriction. 

(c) The weather minimums in this 

section do not apply to the VFR oper-
ation of fixed-wing aircraft at any of 
the locations where the special weather 
minimums of § 91.157 of this chapter are 
not applicable (See part 91, appendix D, 
section 3 of this chapter). The basic 
VFR weather minimums of § 91.155 of 
this chapter apply at those locations. 

[Doc. No. 6258, 29 FR 19222, Dec. 31, 1964, as 
amended by Amdt. 121–39, 33 FR 4097, Mar. 2, 
1968; Amdt. 121–206, 54 FR 34331, Aug. 18, 1989; 
Amdt. 121–226, 56 FR 65663, Dec. 17, 1991] 

§ 121.651 Takeoff and landing weather 

minimums: IFR: All certificate hold-

ers. 

(a) Notwithstanding any clearance 

from ATC, no pilot may begin a takeoff 
in an airplane under IFR when the 
weather conditions reported by the 
U.S. National Weather Service, a 
source approved by that Service, or a 
source approved by the Administrator, 
are less than those specified in— 

(1) The certificate holder’s operations 

specifications; or 

(2) Parts 91 and 97 of this chapter, if 

the certificate holder’s operations 
specifications do not specify takeoff 
minimums for the airport. 

(b) Except as provided in paragraphs 

(d) and (e) of this section, no pilot may 
continue an approach past the final ap-
proach fix, or where a final approach 
fix is not used, begin the final approach 

background image

241 

Federal Aviation Administration, DOT 

§ 121.651 

segment of an instrument approach 
procedure— 

(1) At any airport, unless the U.S. 

National Weather Service, a source ap-
proved by that Service, or a source ap-
proved by the Administrator, issues a 
weather report for that airport; and 

(2) At airports within the United 

States and its territories or at U.S. 
military airports, unless the latest 
weather report for that airport issued 
by the U.S. National Weather Service, 
a source approved by that Service, or a 
source approved by the Administrator, 
reports the visibility to be equal to or 
more than the visibility minimums 
prescribed for that procedure. For the 
purpose of this section, the term ‘‘U.S. 
military airports’’ means airports in 
foreign countries where flight oper-
ations are under the control of U.S. 
military authority. 

(c) A pilot who has begun the final 

approach segment of an instrument ap-
proach procedure in accordance with 
paragraph (b) of this section, and after 
that receives a later weather report in-
dicating below-minimum conditions, 
may continue the approach to DA/DH 
or MDA. Upon reaching DA/DH or at 
MDA, and at any time before the 
missed approach point, the pilot may 
continue the approach below DA/DH or 
MDA if either the requirements of 
§ 91.176 of this chapter, or the following 
requirements are met: 

(1) The aircraft is continuously in a 

position from which a descent to a 
landing on the intended runway can be 
made at a normal rate of descent using 
normal maneuvers, and where that de-
scent rate will allow touchdown to 
occur within the touchdown zone of the 
runway of intended landing; 

(2) The flight visibility is not less 

than the visibility prescribed in the 
standard instrument approach proce-
dure being used; 

(3) Except for Category II or Cat-

egory III approaches where any nec-
essary visual reference requirements 
are specified by authorization of the 
Administrator, at least one of the fol-
lowing visual references for the in-
tended runway is distinctly visible and 
identifiable to the pilot: 

(i) The approach light system, except 

that the pilot may not descend below 
100 feet above the touchdown zone ele-

vation using the approach lights as a 
reference unless the red terminating 
bars or the red side row bars are also 
distinctly visible and identifiable. 

(ii) The threshold. 
(iii) The threshold markings. 
(iv) The threshold lights. 
(v) The runway end identifier lights. 
(vi) The visual approach slope indi-

cator. 

(vii) The touchdown zone or touch-

down zone markings. 

(viii) The touchdown zone lights. 
(ix) The runway or runway markings. 
(x) The runway lights; and 
(4) When the aircraft is on a straight- 

in nonprecision approach procedure 
which incorporates a visual descent 
point, the aircraft has reached the vis-
ual descent point, except where the air-
craft is not equipped for or capable of 
establishing that point, or a descent to 
the runway cannot be made using nor-
mal procedures or rates of descent if 
descent is delayed until reaching that 
point. 

(d) A pilot may begin the final ap-

proach segment of an instrument ap-
proach procedure other than a Cat-
egory II or Category III procedure at 
an airport when the visibility is less 
than the visibility minimums pre-
scribed for that procedure if the airport 
is served by an operative ILS and an 
operative PAR, and both are used by 
the pilot. However, no pilot may con-
tinue an approach below the authorized 
DA/DH unless the requirements of 
§ 91.176 of this chapter, or the following 
requirements are met: 

(1) The aircraft is continuously in a 

position from which a descent to a 
landing on the intended runway can be 
made at a normal rate of descent using 
normal maneuvers and where such a 
descent rate will allow touchdown to 
occur within the touchdown zone of the 
runway of intended landing; 

(2) The flight visibility is not less 

than the visibility prescribed in the 
standard instrument approach proce-
dure being used; and 

(3) Except for Category II or Cat-

egory III approaches where any nec-
essary visual reference requirements 
are specified by the authorization of 
the Administrator, at least one of the 

background image

242 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.652 

following visual references for the in-
tended runway is distinctly visible and 
identifiable to the pilot: 

(i) The approach light system, except 

that the pilot may not descend below 
100 feet above the touchdown zone ele-
vation using the approach lights as a 
reference unless the red terminating 
bars or the red side row bars are also 
distinctly visible and identifiable. 

(ii) The threshold. 
(iii) The threshold markings. 
(iv) The threshold lights. 
(v) The runway end identifier lights. 
(vi) The visual approach slope indi-

cator. 

(vii) The touchdown zone or touch-

down zone markings. 

(viii) The touchdown zone lights. 
(ix) The runway or runway markings. 
(x) The runway lights. 
(e) A pilot may begin the final ap-

proach segment of an instrument ap-
proach procedure, or continue that ap-
proach procedure, at an airport when 
the visibility is reported to be less than 
the visibility minimums prescribed for 
that procedure if the pilot uses an op-
erable EFVS in accordance with § 91.176 
of this chapter and the certificate hold-
er’s operations specifications for EFVS 
operations. 

(f) For the purpose of this section, 

the final approach segment begins at 
the final approach fix or facility pre-
scribed in the instrument approach 
procedure. When a final approach fix is 
not prescribed for a procedure that in-
cludes a procedure turn, the final ap-
proach segment begins at the point 
where the procedure turn is completed 
and the aircraft is established inbound 
toward the airport on the final ap-
proach course within the distance pre-
scribed in the procedure. 

(g) Unless otherwise authorized in 

the certificate holder’s operations 
specifications, each pilot making an 
IFR takeoff, approach, or landing at a 
foreign airport shall comply with the 
applicable instrument approach proce-
dures and weather minimums pre-
scribed by the authority having juris-
diction over the airport. 

[Doc. No. 20060, 46 FR 2291, Jan. 8, 1981, as 
amended by Amdt. 121–303, 69 FR 1641, Jan. 9, 
2004; Amdt. 121–333, 72 FR 31682, June 7, 2007; 
Docket FAA–2013–0485, Amdt. 121–376, 81 FR 
90175, Dec. 13, 2016] 

§ 121.652 Landing weather minimums: 

IFR: All certificate holders. 

(a) If the pilot in command of an air-

plane has not served 100 hours as pilot 
in command in operations under this 
part in the type of airplane he is oper-
ating, the MDA or DA/DH and visi-
bility landing minimums in the certifi-
cate holder’s operations specification 
for regular, provisional, or refueling 
airports are increased by 100 feet and 
one-half mile (or the RVR equivalent). 
The MDA or DA/DH and visibility 
minimums need not be increased above 
those applicable to the airport when 
used as an alternate airport, but in no 
event may the landing minimums be 
less than 300 and 1. However, a Pilot in 
command employed by a certificate 
holder conducting operations in large 
aircraft under part 135 of this chapter, 
may credit flight time acquired in op-
erations conducted for that operator 
under part 91 in the same type airplane 
for up to 50 percent of the 100 hours of 
pilot in command experience required 
by this paragraph. 

(b) The 100 hours of pilot in command 

experience required by paragraph (a) of 
this section may be reduced (not to ex-
ceed 50 percent) by substituting one 
landing in operations under this part in 
the type of airplane for 1 required hour 
of pilot in command experience, if the 
pilot has at least 100 hours as pilot in 
command of another type airplane in 
operations under this part. 

(c) Category II minimums and the 

sliding scale when authorized in the 
certificate holder’s operations speci-
fications do not apply until the pilot in 
command subject to paragraph (a) of 
this section meets the requirements of 
that paragraph in the type of airplane 
he is operating. 

[Doc. No. 7594, 33 FR 10843, July 31, 1968, as 
amended by Amdt. 121–143, 43 FR 22642, May 
25, 1978; Amdt. 121–253, 61 FR 2615, Jan. 26, 
1996; Amdt. 121–333, 72 FR 31682, June 7, 2007] 

§ 121.653 [Reserved] 

§ 121.655 Applicability of reported 

weather minimums. 

In conducting operations under 

§§ 121.649 through 121.653, the ceiling 
and visibility values in the main body 
of the latest weather report control for 
VFR and IFR takeoffs and landings and 

background image

243 

Federal Aviation Administration, DOT 

§ 121.661 

for instrument approach procedures on 
all runways of an airport. However, if 
the latest weather report, including an 
oral report from the control tower, 
contains a visibility value specified as 
runway visibility or runway visual 
range for a particular runway of an air-
port, that specified value controls for 
VFR and IFR landings and takeoffs and 
straight-in instrument approaches for 
that runway. 

§ 121.657 Flight altitude rules. 

(a) 

General. 

Notwithstanding § 91.119 

or any rule applicable outside the 
United States, no person may operate 
an aircraft below the minimums set 
forth in paragraphs (b) and (c) of this 
section, except when necessary for 
takeoff or landing, or except when, 
after considering the character of the 
terrain, the quality and quantity of 
meteorological services, the naviga-
tional facilities available, and other 
flight conditions, the Administrator 
prescribes other minimums for any 
route or part of a route where he finds 
that the safe conduct of the flight re-
quires other altitudes. Outside of the 
United States the minimums pre-
scribed in this section are controlling 
unless higher minimums are prescribed 
in the certificate holder’s operations 
specifications or by the foreign country 
over which the aircraft is operating. 

(b) 

Day VFR operations. 

No certificate 

holder conducting domestic operations 
may operate a passenger-carrying air-
craft and no certificate holder con-
ducting flag or supplemental oper-
ations may operate any aircraft under 
VFR during the day at an altitude less 
than 1,000 feet above the surface or less 
than 1,000 feet from any mountain, hill, 
or other obstruction to flight. 

(c) 

Night VFR, IFR, and over-the-top 

operations. 

No person may operate an 

aircraft under IFR including over-the- 
top or at night under VFR at an alti-
tude less than 1,000 feet above the high-
est obstacle within a horizontal dis-
tance of five miles from the center of 
the intended course, or, in designated 
mountainous areas, less than 2,000 feet 
above the highest obstacle within a 
horizontal distance of five miles from 
the center of the intended course. 

(d) 

Day over-the-top operations below 

minimum en route altitudes. 

A person 

may conduct day over-the-top oper-
ations in an airplane at flight altitudes 
lower than the minimum en route IFR 
altitudes if— 

(1) The operation is conducted at 

least 1,000 feet above the top of lower 
broken or overcast cloud cover; 

(2) The top of the lower cloud cover is 

generally uniform and level; 

(3) Flight visibility is at least five 

miles; and 

(4) The base of any higher broken or 

overcast cloud cover is generally uni-
form and level and is at least 1,000 feet 
above the minimum en route IFR alti-
tude for that route segment. 

[Doc. No. 6258, 29 FR 19222, Dec. 31, 1964, as 
amended by Amdt. 121–144, 43 FR 22649, May 
25, 1978; Amdt. 121–206, 54 FR 34331, Aug. 18, 
1989; Amdt. 121–253, 61 FR 2615, Jan. 26, 1996] 

§ 121.659 Initial approach altitude: Do-

mestic and supplemental oper-

ations. 

(a) Except as provided in paragraph 

(b) of this section, when making an ini-
tial approach to a radio navigation fa-
cility under IFR, no person may de-
scend an aircraft below the pertinent 
minimum altitude for initial approach 
(as specified in the instrument ap-
proach procedure for that facility) 
until his arrival over that facility has 
been definitely established. 

(b) When making an initial approach 

on a flight being conducted under 
§ 121.657(d), no pilot may commence an 
instrument approach until his arrival 
over the radio facility has definitely 
been established. In making an instru-
ment approach under these cir-
cumstances no person may descend an 
aircraft lower than 1,000 feet above the 
top of the lower cloud or the minimum 
altitude determined by the Adminis-
trator for that part of the IFR ap-
proach, whichever is lower. 

§ 121.661 Initial approach altitude: 

Flag operations. 

When making an initial approach to 

a radio navigation facility under IFR, 
no person may descend below the perti-
nent minimum altitude for initial ap-
proach (as specified in the instrument 
approach procedure for that facility) 
until his arrival over that facility has 
been definitely established. 

background image

244 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.663 

§ 121.663 Responsibility for dispatch 

release: Domestic and flag oper-

ations. 

Each certificate holder conducting 

domestic or flag operations shall pre-
pare a dispatch release for each flight 
between specified points, based on in-
formation furnished by an authorized 
aircraft dispatcher. The pilot in com-
mand and an authorized aircraft dis-
patcher shall sign the release only if 
they both believe that the flight can be 
made with safety. The aircraft dis-
patcher may delegate authority to sign 
a release for a particular flight, but he 
may not delegate his authority to dis-
patch. 

[Doc. No. 28154, 61 FR 2615, Jan. 26, 1996] 

§ 121.665 Load manifest. 

Each certificate holder is responsible 

for the preparation and accuracy of a 
load manifest form before each takeoff. 
The form must be prepared and signed 
for each flight by employees of the cer-
tificate holder who have the duty of su-
pervising the loading of aircraft and 
preparing the load manifest forms or 
by other qualified persons authorized 
by the certificate holder. 

§ 121.667 Flight plan: VFR and IFR: 

Supplemental operations. 

(a) No person may take off an air-

craft unless the pilot in command has 
filed a flight plan, containing the ap-
propriate information required by part 
91, with the nearest FAA communica-
tion station or appropriate military 
station or, when operating outside the 
United States, with other appropriate 
authority. However, if communications 
facilities are not readily available, the 
pilot in command shall file the flight 
plan as soon as practicable after the 
aircraft is airborne. A flight plan must 
continue in effect for all parts of the 
flight. 

(b) When flights are operated into 

military airports, the arrival or com-
pletion notice required by §§ 91.153 and 
91.169 may be filed with the appropriate 
airport control tower or aeronautical 
communication facility used for that 
airport. 

[Doc. No. 6258, 29 FR 19222, Dec. 31, 1964, as 
amended by Amdt. 121–206, 54 FR 34331, Aug. 
18, 1989] 

Subpart V—Records and Reports 

S

OURCE

: Docket No. 6258, 29 FR 19226, Dec. 

31, 1964, unless otherwise noted. 

§ 121.681 Applicability. 

This subpart prescribes requirements 

for the preparation and maintenance of 
records and reports for all certificate 
holders. 

§ 121.683 Crewmember and dispatcher 

record. 

(a) Each certificate holder shall— 
(1) Maintain current records of each 

crewmember and each aircraft dis-
patcher (domestic and flag operations 
only) that show whether the crew-
member or aircraft dispatcher complies 
with the applicable sections of this 
chapter, including, but not limited to, 
proficiency and route checks, airplane 
and route qualifications, training, any 
required physical examinations, flight, 
duty, and rest time records; and 

(2) Record each action taken con-

cerning the release from employment 
or physical or professional disqualifica-
tion of any flight crewmember or air-
craft dispatcher (domestic and flag op-
erations only) and keep the record for 
at least six months thereafter. 

(b) Each certificate holder con-

ducting supplemental operations shall 
maintain the records required by para-
graph (a) of this section at its principal 
base of operations, or at another loca-
tion used by it and approved by the Ad-
ministrator. 

(c) Computer record systems ap-

proved by the Administrator may be 
used in complying with the require-
ments of paragraph (a) of this section. 

[Doc. No. 6258, 29 FR 19226, Dec. 31, 1964, as 
amended by Amdt. 121–144, 43 FR 22649, May 
25, 1978; Amdt. 121–241, 59 FR 42993, Aug. 19, 
1994; Amdt. 121–253, 61 FR 2615, Jan. 26, 1996] 

§ 121.685 Aircraft record: Domestic 

and flag operations. 

Each certificate holder conducting 

domestic or flag operations shall main-
tain a current list of each aircraft that 
it operates in scheduled air transpor-
tation and shall send a copy of the 
record and each change to the respon-
sible Flight Standards office. Airplanes 
of another certificate holder operated 

background image

245 

Federal Aviation Administration, DOT 

§ 121.693 

under an interchange agreement may 
be incorporated by reference. 

[Doc. No. 28154, 61 FR 2615, Jan. 26, 1996, as 
amended by Docket FAA–2018–0119, Amdt. 
121–380, 83 FR 9172, Mar. 5, 2018] 

§ 121.687 Dispatch release: Flag and 

domestic operations. 

(a) The dispatch release may be in 

any form but must contain at least the 
following information concerning each 
flight: 

(1) Identification number of the air-

craft. 

(2) Trip number. 
(3) Departure airport, intermediate 

stops, destination airports, and alter-
nate airports. 

(4) A statement of the type of oper-

ation (e.g., IFR, VFR). 

(5) Minimum fuel supply. 
(6) For each flight dispatched as an 

ETOPS flight, the ETOPS diversion 
time for which the flight is dispatched. 

(b) The dispatch release must con-

tain, or have attached to it, weather 
reports, available weather forecasts, or 
a combination thereof, for the destina-
tion airport, intermediate stops, and 
alternate airports, that are the latest 
available at the time the release is 
signed by the pilot in command and 
dispatcher. It may include any addi-
tional available weather reports or 
forecasts that the pilot in command or 
the aircraft dispatcher considers nec-
essary or desirable. 

[Doc. No. 6258, 29 FR 19226, Dec. 31, 1964, as 
amended by Amdt. 121–329, 72 FR 1883, Jan. 
16, 2007] 

§ 121.689 Flight release form: Supple-

mental operations. 

(a) Except as provided in paragraph 

(c) of this section, the flight release 
may be in any form but must contain 
at least the following information con-
cerning each flight: 

(1) Company or organization name. 
(2) Make, model, and registration 

number of the aircraft being used. 

(3) Flight or trip number, and date of 

flight. 

(4) Name of each flight crewmember, 

flight attendant, and pilot designated 
as pilot in command. 

(5) Departure airport, destination air-

ports, alternate airports, and route. 

(6) Minimum fuel supply (in gallons 

or pounds). 

(7) A statement of the type of oper-

ation (e.g., IFR, VFR). 

(8) For each flight released as an 

ETOPS flight, the ETOPS diversion 
time for which the flight is released. 

(b) The aircraft flight release must 

contain, or have attached to it, weath-
er reports, available weather forecasts, 
or a combination thereof, for the des-
tination airport, and alternate air-
ports, that are the latest available at 
the time the release is signed. It may 
include any additional available weath-
er reports or forecasts that the pilot in 
command considers necessary or desir-
able. 

(c) Each certificate holder con-

ducting domestic or flag operations 
under the rules of this part applicable 
to supplemental operations shall com-
ply with the dispatch or flight release 
forms required for scheduled operations 
under this subpart. 

[Doc. No. 6258, 29 FR 19226, Dec. 31, 1964, as 
amended by Amdt. 121–253, 61 FR 2615, Jan. 
26, 1996; Amdt. 121–329, 72 FR 1883, Jan. 16, 
2007] 

§ 121.691 [Reserved] 

§ 121.693 Load manifest: All certificate 

holders. 

The load manifest must contain the 

following information concerning the 
loading of the airplane at takeoff time: 

(a) The weight of the aircraft, fuel 

and oil, cargo and baggage, passengers 
and crewmembers. 

(b) The maximum allowable weight 

for that flight that must not exceed 
the least of the following weights: 

(1) Maximum allowable takeoff 

weight for the runway intended to be 
used (including corrections for altitude 
and gradient, and wind and tempera-
ture conditions existing at the takeoff 
time). 

(2) Maximum takeoff weight consid-

ering anticipated fuel and oil consump-
tion that allows compliance with appli-
cable en route performance limita-
tions. 

(3) Maximum takeoff weight consid-

ering anticipated fuel and oil consump-
tion that allows compliance with the 
maximum authorized design landing 

background image

246 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.695 

weight limitations on arrival at the 
destination airport. 

(4) Maximum takeoff weight consid-

ering anticipated fuel and oil consump-
tion that allows compliance with land-
ing distance limitations on arrival at 
the destination and alternate airports. 

(c) The total weight computed under 

approved procedures. 

(d) Evidence that the aircraft is load-

ed according to an approved schedule 
that insures that the center of gravity 
is within approved limits. 

(e) Names of passengers, unless such 

information is maintained by other 
means by the certificate holder. 

[Doc. No. 6258, 29 FR 19226, Dec. 31, 1964, as 
amended by Amdt. 121–159, 45 FR 41595, June 
19, 1980; Amdt. 121–253, 61 FR 2615, Jan. 26, 
1996] 

§ 121.695 Disposition of load manifest, 

dispatch release, and flight plans: 

Domestic and flag operations. 

(a) The pilot in command of an air-

plane shall carry in the airplane to its 
destination— 

(1) A copy of the completed load 

manifest (or information from it, ex-
cept information concerning cargo and 
passenger distribution); 

(2) A copy of the dispatch release; 

and 

(3) A copy of the flight plan. 
(b) The certificate holder shall keep 

copies of the records required in this 
section for at least three months. 

[Doc. No. 6258, 29 FR 19226, Dec. 31, 1964, as 
amended by Amdt. 121–178, 47 FR 13316, Mar. 
29, 1982; Amdt. 121–253, 61 FR 2616, Jan. 26, 
1996] 

§ 121.697 Disposition of load manifest, 

flight release, and flight plans: Sup-

plemental operations. 

(a) The pilot in command of an air-

plane shall carry in the airplane to its 
destination the original or a signed 
copy of the— 

(1) Load manifest; 
(2) Flight release; 
(3) Airworthiness release; 
(4) Pilot route certification; and 
(5) Flight plan. 
(b) If a flight originates at the cer-

tificate holder’s principal base of oper-
ations, it shall retain at that base a 
signed copy of each document listed in 
paragraph (a) of this section. 

(c) Except as provided in paragraph 

(d) of this section, if a flight originates 
at a place other than the certificate 
holder’s principal base of operations, 
the pilot in command (or another per-
son not aboard the airplane who is au-
thorized by the certificate holder) 
shall, before or immediately after de-
parture of the flight, mail signed cop-
ies of the documents listed in para-
graph (a) of this section, to the prin-
cipal base of operations. 

(d) If a flight originates at a place 

other than the certificate holder’s prin-
cipal base of operations, and there is at 
that place a person to manage the 
flight departure for the certificate 
holder who does not himself or herself 
depart on the airplane, signed copies of 
the documents listed in paragraph (a) 
of this section may be retained at that 
place for not more than 30 days before 
being sent to the certificate holder’s 
principal base of operations. However, 
the documents for a particular flight 
need not be further retained at that 
place or be sent to the principal base of 
operations, if the originals or other 
copies of them have been previously re-
turned to the principal base of oper-
ations. 

(e) The certificate holder conducting 

supplemental operations shall: 

(1) Identify in its operations manual 

the person having custody of the copies 
of documents retained in accordance 
with paragraph (d) of this section; and 

(2) Retain at its principal base of op-

erations either an original or a copy of 
the records required by this section for 
at least three months. 

[Doc. No. 6258, 29 FR 19226, Dec. 31, 1964, as 
amended by Amdt. 121–123, 40 FR 44541, Sept. 
29, 1975; Amdt. 121–143, 43 FR 22642, May 25, 
1978; Amdt. 121–178, 47 FR 13316, Mar. 29, 1982; 
Amdt. 121–253, 61 FR 2616, Jan. 26, 1996] 

§§ 121.698–121.699 [Reserved] 

§ 121.701 Maintenance log: Aircraft. 

(a) Each person who takes action in 

the case of a reported or observed fail-
ure or malfunction of an airframe, en-
gine, propeller, or appliance that is 
critical to the safety of flight shall 
make, or have made, a record of that 
action in the airplane’s maintenance 
log. 

background image

247 

Federal Aviation Administration, DOT 

§ 121.703 

(b) Each certificate holder shall have 

an approved procedure for keeping ade-
quate copies of the record required in 
paragraph (a) of this section in the air-
plane in a place readily accessible to 
each flight crewmember and shall put 
that procedure in the certificate hold-
er’s manual. 

§ 121.703 Service difficulty reports. 

(a) Each certificate holder shall re-

port the occurrence or detection of 
each failure, malfunction, or defect 
concerning— 

(1) Fires during flight and whether 

the related fire-warning system func-
tioned properly; 

(2) Fires during flight not protected 

by a related fire-warning system; 

(3) False fire warning during flight; 
(4) An engine exhaust system that 

causes damage during flight to the en-
gine, adjacent structure, equipment, or 
components; 

(5) An aircraft component that 

causes accumulation or circulation of 
smoke, vapor, or toxic or noxious 
fumes in the crew compartment or pas-
senger cabin during flight; 

(6) Engine shutdown during flight be-

cause of flameout; 

(7) Engine shutdown during flight 

when external damage to the engine or 
airplane structure occurs; 

(8) Engine shutdown during flight due 

to foreign object ingestion or icing; 

(9) Engine shutdown during flight of 

more than one engine; 

(10) A propeller feathering system or 

ability of the system to control over-
speed during flight; 

(11) A fuel or fuel-dumping system 

that affects fuel flow or causes haz-
ardous leakage during flight; 

(12) An unwanted landing gear exten-

sion or retraction, or an unwanted 
opening or closing of landing gear 
doors during flight; 

(13) Brake system components that 

result in loss of brake actuating force 
when the airplane is in motion on the 
ground; 

(14) Aircraft structure that requires 

major repair; 

(15) Cracks, permanent deformation, 

or corrosion of aircraft structures, if 
more than the maximum acceptable to 
the manufacturer or the FAA; 

(16) Aircraft components or systems 

that result in taking emergency ac-
tions during flight (except action to 
shut down an engine); and 

(17) Emergency evacuation systems 

or components including all exit doors, 
passenger emergency evacuation light-
ing systems, or evacuation equipment 
that are found defective, or that fail to 
perform the intended functions during 
an actual emergency or during train-
ing, testing, maintenance, demonstra-
tions, or inadvertent deployments. 

(b) For the purpose of this section 

during flight 

means the period from the 

moment the aircraft leaves the surface 
of the earth on takeoff until it touches 
down on landing. 

(c) In addition to the reports required 

by paragraph (a) of this section, each 
certificate holder shall report any 
other failure, malfunction, or defect in 
an aircraft that occurs or is detected at 
any time if, in its opinion, that failure, 
malfunction, or defect has endangered 
or may endanger the safe operation of 
an aircraft used by it. 

(d) Each certificate holder shall sub-

mit each report required by this sec-
tion, covering each 24-hour period be-
ginning at 0900 local time of each day 
and ending at 0900 local time on the 
next day, to the FAA offices in Okla-
homa City, Oklahoma. Each report of 
occurrences during a 24-hour period 
shall be submitted to the collection 
point within the next 96 hours. How-
ever, a report due on Saturday or Sun-
day may be submitted on the following 
Monday, and a report due on a holiday 
may be submitted on the next work 
day. 

(e) The certificate holder shall sub-

mit the reports required by this section 
on a form or in another format accept-
able to the Administrator. The reports 
shall include the following informa-
tion: 

(1) Type and identification number of 

the aircraft. 

(2) The name of the operator. 
(3) The date, flight number, and stage 

during which the incident occurred 
(e.g., preflight, takeoff, climb, cruise, 
descent landing, and inspection). 

(4) The emergency procedure effected 

(e.g., unscheduled landing and emer-
gency descent). 

background image

248 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.705 

(5) The nature of the failure, mal-

function, or defect. 

(6) Identification of the part and sys-

tem involved, including available infor-
mation pertaining to type designation 
of the major component and time since 
overhaul. 

(7) Apparent cause of the failure, 

malfunction, or defect (e.g., wear, 
crack, design deficiency, or personnel 
error). 

(8) Whether the part was repaired, re-

placed, sent to the manufacturer, or 
other action taken. 

(9) Whether the aircraft was ground-

ed. 

(10) Other pertinent information nec-

essary for more complete identifica-
tion, determination of seriousness, or 
corrective action. 

(f) A certificate holder that is also 

the holder of a Type Certificate (in-
cluding a Supplemental Type Certifi-
cate), a Parts Manufacturer Approval, 
or a Technical Standard Order Author-
ization, or that is the licensee of a type 
certificate holder, need not report a 
failure, malfunction, or defect under 
this section if the failure, malfunction, 
or defect has been reported by it under 
§ 21.3 of this chapter or under the acci-
dent reporting provisions of 49 CFR 
part 830. 

(g) No person may withhold a report 

required by this section even though 
all information required in this section 
is not available. 

(h) When certificate holder gets addi-

tional information, including informa-
tion from the manufacturer or other 
agency, concerning a report required 
by this section, it shall expeditiously 
submit it as a supplement to the first 
report and reference the date and place 
of submission of the first report. 

[Doc. No. 6258, 29 FR 19226, Dec. 31, 1964, as 
amended by Doc. No. 8084, 32 FR 5770, Apr. 11, 
1967; Amdt. 121–72, 35 FR 18188, Nov. 28, 1970; 
Amdt. 121–143, 43 FR 22642, May 25, 1978; 
Amdt. 121–178, 47 FR 13316, Mar. 29, 1982; 
Amdt. 121–187, 50 FR 32375, Aug. 9, 1985; 
Amdt. 121–195, 53 FR 8728, Mar. 16, 1988; 
Amdt. 121–251, 60 FR 65936, Dec. 20, 1995; 
Amdt. 121–319, 70 FR 76979, Dec. 29, 2005; 
Amdt. 121–387, 87 FR 75846, Dec. 9, 2022] 

§ 121.705 Mechanical interruption 

summary report. 

Each certificate holder shall submit 

to the Administrator, before the end of 

the 10th day of the following month, a 
summary report for the previous 
month of: 

(a) Each interruption to a flight, un-

scheduled change of aircraft en route, 
or unscheduled stop or diversion from a 
route, caused by known or suspected 
mechanical difficulties or malfunctions 
that are not required to be reported 
under § 121.703. 

(b) The number of engines removed 

prematurely because of malfunction, 
failure or defect, listed by make and 
model and the aircraft type in which it 
was installed. 

(c) The number of propeller 

featherings in flight, listed by type of 
propeller and engine and aircraft on 
which it was installed. Propeller 
featherings for training, demonstra-
tion, or flight check purposes need not 
be reported. 

[Doc. No. 6258, 29 FR 19226, Dec. 31, 1964, as 
amended by Amdt. 121–10, 30 FR 10025, Aug. 
12, 1965; Amdt. 121–319, 70 FR 76979, Dec. 29, 
2005] 

§ 121.707 Alteration and repair re-

ports. 

(a) Each certificate holder shall, 

promptly upon its completion, prepare 
a report of each major alteration or 
major repair of an airframe, aircraft 
engine, propeller, or appliance of an 
aircraft operated by it. 

(b) The certificate holder shall sub-

mit a copy of each report of a major al-
teration to, and shall keep a copy of 
each report of a major repair available 
for inspection by, the representative of 
the Administrator who is assigned to 
it. 

§ 121.709 Airworthiness release or air-

craft log entry. 

(a) No certificate holder may operate 

an aircraft after maintenance, preven-
tive maintenance or alterations are 
performed on the aircraft unless the 
certificate holder, or the person with 
whom the certificate holder arranges 
for the performance of the mainte-
nance, preventive maintenance, or al-
terations, prepares or causes to be pre-
pared— 

(1) An airworthiness release; or 
(2) An appropriate entry in the air-

craft log. 

background image

249 

Federal Aviation Administration, DOT 

§ 121.713 

(b) The airworthiness release or log 

entry required by paragraph (a) of this 
section must— 

(1) Be prepared in accordance with 

the procedures set forth in the certifi-
cate holder’s manual; 

(2) Include a certification that— 
(i) The work was performed in ac-

cordance with the requirements of the 
certificate holder’s manual; 

(ii) All items required to be inspected 

were inspected by an authorized person 
who determined that the work was sat-
isfactorily completed; 

(iii) No known condition exists that 

would make the airplane unairworthy; 
and 

(iv) So far as the work performed is 

concerned, the aircraft is in condition 
for safe operation; and 

(3) Be signed by an authorized certifi-

cated mechanic or repairman except 
that a certificated repairman may sign 
the release or entry only for the work 
for which he is employed and certifi-
cated. 

(c) Notwithstanding paragraph (b)(3) 

of this section, after maintenance, pre-
ventive maintenance, or alterations 
performed by a repair station that is 
located outside the United States, the 
airworthiness release or log entry re-
quired by paragraph (a) of this section 
may be signed by a person authorized 
by that repair station. 

(d) When an airworthiness release 

form is prepared the certificate holder 
must give a copy to the pilot in com-
mand and must keep a record thereof 
for at least 2 months. 

(e) Instead of restating each of the 

conditions of the certification required 
by paragraph (b) of this section, the air 
carrier may state in its manual that 
the signature of an authorized certifi-
cated mechanic or repairman con-
stitutes that certification. 

[Doc. No. 6258, 29 FR 19226, Dec. 31, 1964, as 
amended by Amdt. 121–6, 30 FR 6432, May 8, 
1965; Amdt. 121–21, 31 FR 10613, Aug. 9, 1966; 
Amdt. 121–286, 66 FR 41116, Aug. 6, 2001] 

§ 121.711 Communication records: Do-

mestic and flag operations. 

(a) Each certificate holder con-

ducting domestic or flag operations 
must record each en route communica-
tion between the certificate holder and 

its pilots using a communication sys-
tem as required by § 121.99 of this part. 

(b) For purposes of this section the 

term en route means from the time the 
aircraft pushes back from the depart-
ing gate until the time the aircraft 
reaches the arrival gate at its destina-
tion. 

(c) The record required in paragraph 

(a) of this section must contain at least 
the following information: 

(1) The date and time of the contact; 
(2) The flight number; 
(3) Aircraft registration number; 
(4) Approximate position of the air-

craft during the contact; 

(5) Call sign; and 
(6) Narrative of the contact. 
(d) The record required in paragraph 

(a) of this section must be kept for at 
least 30 days. 

[Doc. No. FAA–2008–0677, 78 FR 67841, Nov. 12, 
2013] 

§ 121.713 Retention of contracts and 

amendments: Commercial operators 
who conduct intrastate operations 
for compensation or hire. 

(a) Each commercial operator who 

conducts intrastate operations for 
compensation or hire shall keep a copy 
of each written contract under which it 
provides services as a commercial oper-
ator for a period of at least 1 year after 
the date of execution of the contract. 
In the case of an oral contract, it shall 
keep a memorandum stating its ele-
ments, and of any amendments to it, 
for a period of at least one year after 
the execution of that contract or 
change. 

(b) Each commercial operator who 

conducts intrastate operations for 
compensation or hire shall submit a fi-
nancial report for the first 6 months of 
each fiscal year and another financial 
report for each complete fiscal year. If 
that person’s operating certificate is 
suspended for more than 29 days, that 
person shall submit a financial report 
as of the last day of the month in 
which the suspension is terminated. 
The report required to be submitted by 
this section shall be submitted within 
60 days of the last day of the period 
covered by the report and must in-
clude— 

background image

250 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.721 

(1) A balance sheet that shows assets, 

liabilities, and net worth on the last 
day of the reporting period; 

(2) The information required by 

§ 119.36 (e)(2), (e)(7), and (e)(8) of this 
chapter; 

(3) An itemization of claims in litiga-

tion against the applicant, if any, as of 
the last day of the period covered by 
the report; 

(4) A profit and loss statement with 

the separation of items relating to the 
applicant’s commercial operator ac-
tivities from his other business activi-
ties, if any; and 

(5) A list of each contract that gave 

rise to operating income on the profit 
and loss statement, including the 
names and addresses of the contracting 
parties and the nature, scope, date, and 
duration of each contract. 

[Doc. No. 28154, 60 FR 65936, Dec. 20, 1995, as 
amended by Amdt. 121–262, 62 FR 13257, Mar. 
19, 1997] 

Subpart W—Crewmember 

Certificate: International 

§ 121.721 Applicability. 

This section describes the certifi-

cates that were issued to United States 
citizens who were employed by air car-
riers at the time of issuance as flight 
crewmembers on United States reg-
istered aircraft engaged in inter-
national air commerce. The purpose of 
the certificate is to facilitate the entry 
and clearance of those crewmembers 
into ICAO contracting states. They 
were issued under Annex 9, as amended, 
to the Convention on International 
Civil Aviation. 

[Doc. No. 28154, 61 FR 30435, June 14, 1996] 

§ 121.723 Surrender of international 

crewmember certificate. 

The holder of a certificate issued 

under this section, or the air carrier by 
whom the holder is employed, shall 
surrender the certificate for cancella-
tion at the responsible Flight Stand-
ards office at the termination of the 
holder’s employment with that air car-
rier. 

[Doc. No. 28154, 61 FR 30435, June 14, 1996, as 
amended by Docket FAA–2018–0119, Amdt. 
121–380, 83 FR 9173, Mar. 5, 2018] 

Subpart X—Emergency Medical 

Equipment and Training 

S

OURCE

: Docket No. FAA–2000–7119, 66 FR 

19044, Apr. 12, 2001, unless otherwise noted. 

§ 121.801 Applicability. 

This subpart prescribes the emer-

gency medical equipment and training 
requirements applicable to all certifi-
cate holders operating passenger-car-
rying airplanes under this part. Noth-
ing in this subpart is intended to re-
quire certificate holders or its agents 
to provide emergency medical care or 
to establish a standard of care for the 
provision of emergency medical care. 

§ 121.803 Emergency medical equip-

ment. 

(a) No person may operate a pas-

senger-carrying airplane under this 
part unless it is equipped with the 
emergency medical equipment listed in 
this section. 

(b) Each equipment item listed in 

this section— 

(1) Must be inspected regularly in ac-

cordance with inspection periods estab-
lished in the operations specifications 
to ensure its condition for continued 
serviceability and immediate readiness 
to perform its intended emergency pur-
poses; 

(2) Must be readily accessible to the 

crew and, with regard to equipment lo-
cated in the passenger compartment, 
to passengers; 

(3) Must be clearly identified and 

clearly marked to indicate its method 
of operation; and 

(4) When carried in a compartment or 

container, must be carried in a com-
partment or container marked as to 
contents and the compartment or con-
tainer, or the item itself, must be 
marked as to date of last inspection. 

(c) For treatment of injuries, medical 

events, or minor accidents that might 
occur during flight time each airplane 
must have the following equipment 
that meets the specifications and re-
quirements of appendix A of this part: 

(1) Approved first-aid kits. 
(2) In airplanes for which a flight at-

tendant is required, an approved emer-
gency medical kit. 

background image

251 

Federal Aviation Administration, DOT 

§ 121.903 

(3) In airplanes for which a flight at-

tendant is required, an approved emer-
gency medical kit as modified effective 
April 12, 2004. 

(4) In airplanes for which a flight at-

tendant is required and with a max-
imum payload capacity of more than 
7,500 pounds, an approved automated 
external defibrillator as of April 12, 
2004. 

§ 121.805 Crewmember training for in- 

flight medical events. 

(a) Each training program must pro-

vide the instruction set forth in this 
section with respect to each airplane 
type, model, and configuration, each 
required crewmember, and each kind of 
operation conducted, insofar as appro-
priate for each crewmember and the 
certificate holder. 

(b) Training must provide the fol-

lowing: 

(1) Instruction in emergency medical 

event procedures, including coordina-
tion among crewmembers. 

(2) Instruction in the location, func-

tion, and intended operation of emer-
gency medical equipment. 

(3) Instruction to familiarize crew-

members with the content of the emer-
gency medical kit. 

(4) Instruction to familiarize crew-

members with the content of the emer-
gency medical kit as modified on April 
12, 2004. 

(5) For each flight attendant— 
(i) Instruction, to include perform-

ance drills, in the proper use of auto-
mated external defibrillators. 

(ii) Instruction, to include perform-

ance drills, in cardiopulmonary resus-
citation. 

(iii) Recurrent training, to include 

performance drills, in the proper use of 
an automated external defibrillators 
and in cardiopulmonary resuscitation 
at least once every 24 months. 

(c) The crewmember instruction, per-

formance drills, and recurrent training 
required under this section are not re-
quired to be equivalent to the expert 
level of proficiency attained by profes-
sional emergency medical personnel. 

Subpart Y—Advanced 

Qualification Program 

S

OURCE

: Docket No. FAA–2005–20750, 70 FR 

54815, Sept. 16, 2005, unless otherwise noted. 

§ 121.901 Purpose and eligibility. 

(a) Contrary provisions of parts 61, 63, 

65, 121, 135, and 142 of this chapter not-
withstanding, this subpart provides for 
approval of an alternative method 
(known as ‘‘Advanced Qualification 
Program’’ or ‘‘AQP’’) for qualifying, 
training, certifying, and otherwise en-
suring competency of crewmembers, 
aircraft dispatchers, other operations 
personnel, instructors, and evaluators 
who are required to be trained under 
parts 121 and 135 of this chapter. 

(b) A certificate holder is eligible 

under this subpart if the certificate 
holder is required or elects to have an 
approved training program under 
§§ 121.401, 135.3(c), or 135.341 of this 
chapter. 

(c) A certificate holder obtains ap-

proval of each proposed curriculum 
under this AQP as specified in § 121.909. 

§ 121.903 General requirements for Ad-

vanced Qualification Programs. 

(a) A curriculum approved under an 

AQP may include elements of existing 
training programs under part 121 and 
part 135 of this chapter. Each cur-
riculum must specify the make, model, 
series or variant of aircraft and each 
crewmember position or other posi-
tions to be covered by that curriculum. 
Positions to be covered by the AQP 
must include all flight crewmember po-
sitions, flight instructors, and eval-
uators and may include other posi-
tions, such as flight attendants, air-
craft dispatchers, and other operations 
personnel. 

(b) Each certificate holder that ob-

tains approval of an AQP under this 
subpart must comply with all the re-
quirements of the AQP and this sub-
part instead of the corresponding pro-
visions of parts 61, 63, 65, 121, or 135 of 
this chapter. However, each applicable 
requirement of parts 61, 63, 65, 121, or 
135 of this chapter, including but not 
limited to practical test requirements, 
that is not specifically addressed in the 
AQP continues to apply to the certifi-
cate holder and to the individuals 

background image

252 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.905 

being trained and qualified by the cer-
tificate holder. No person may be 
trained under an AQP unless that AQP 
has been approved by the FAA and the 
person complies with all the require-
ments of the AQP and this subpart. 

(c) No certificate holder that con-

ducts its training program under this 
subpart may use any person nor may 
any person serve in any duty position 
as a required crewmember, an aircraft 
dispatcher, an instructor, or an eval-
uator, unless that person has satisfac-
torily accomplished, in a training pro-
gram approved under this subpart for 
the certificate holder, the training and 
evaluation of proficiency required by 
the AQP for that type airplane and 
duty position. 

(d) All documentation and data re-

quired under this subpart must be sub-
mitted in a form and manner accept-
able to the FAA. 

(e) Any training or evaluation re-

quired under an AQP that is satisfac-
torily completed in the calendar month 
before or the calendar month after the 
calendar month in which it is due is 
considered to have been completed in 
the calendar month it was due. 

§ 121.905 Confidential commercial in-

formation. 

(a) Each certificate holder that 

claims that AQP information or data it 
is submitting to the FAA is entitled to 
confidential treatment under 5 U.S.C. 
552(b)(4) because it constitutes con-
fidential commercial information as 
described in 5 U.S.C. 552(b)(4), and 
should be withheld from public disclo-
sure, must include its request for con-
fidentiality with each submission. 

(b) When requesting confidentiality 

for submitted information or data, the 
certificate holder must: 

(1) If the information or data is 

transmitted electronically, embed the 
claim of confidentiality within the 
electronic record so the portions 
claimed to be confidential are readily 
apparent when received and reviewed. 

(2) If the information or data is sub-

mitted in paper format, place the word 
‘‘CONFIDENTIAL’’ on the top of each 
page containing information or data 
claimed to be confidential. 

(3) Justify the basis for a claim of 

confidentiality under 5 U.S.C. 552(b)(4). 

§ 121.907 Definitions. 

The following definitions apply to 

this subpart: 

Crew Resource Management (CRM) 

means the effective use of all the re-
sources available to crewmembers, in-
cluding each other, to achieve a safe 
and efficient flight. 

Curriculum outline 

means a listing of 

each segment, module, lesson, and les-
son element in a curriculum, or an 
equivalent listing acceptable to the 
FAA. 

Evaluation of proficiency 

means a Line 

Operational Evaluation (LOE) or an 
equivalent evaluation under an AQP 
acceptable to the FAA. 

Evaluator 

means a person who as-

sesses or judges the performance of 
crewmembers, instructors, other eval-
uators, aircraft dispatchers, or other 
operations personnel. 

First Look 

means the assessment of 

performance to determine proficiency 
on designated flight tasks before any 
briefing, training, or practice on those 
tasks is given in the training session 
for a continuing qualification cur-
riculum. First Look is conducted dur-
ing an AQP continuing qualification 
cycle to determine trends of degraded 
proficiency, if any, due in part to the 
length of the interval between training 
sessions. 

Instructional systems development 

means a systematic methodology for 
developing or modifying qualification 
standards and associated curriculum 
content based on a documented anal-
ysis of the job tasks, skills, and knowl-
edge required for job proficiency. 

Job task listing 

means a listing of all 

tasks, subtasks, knowledge, and skills 
required for accomplishing the oper-
ational job. 

Line Operational Evaluation (LOE) 

means a simulated line environment, 
the scenario content of which is de-
signed to test integrating technical 
and CRM skills. 

Line Operational Simulation (LOS) 

means a training or evaluation session, 
as applicable, that is conducted in a 
simulated line environment using 
equipment qualified and approved for 
its intended purpose in an AQP. 

Planned hours 

means the estimated 

amount of time (as specified in a cur-
riculum outline) that it takes a typical 

background image

253 

Federal Aviation Administration, DOT 

§ 121.909 

student to complete a segment of in-
struction (to include all instruction, 
demonstration, practice, and evalua-
tion, as appropriate, to reach pro-
ficiency). 

Qualification standard 

means a state-

ment of a minimum required perform-
ance, applicable parameters, criteria, 
applicable flight conditions, evaluation 
strategy, evaluation media, and appli-
cable document references. 

Qualification standards document 

means a single document containing 
all the qualification standards for an 
AQP together with a prologue that pro-
vides a detailed description of all fac-
ets of the evaluation process. 

Special tracking 

means assigning a 

person to an augmented schedule of 
training, checking, or both. 

Training session 

means a contiguously 

scheduled period devoted to training 
activities at a facility approved by the 
FAA for that purpose. 

Variant 

means a specifically config-

ured aircraft for which the FAA has 
identified training and qualifications 
that are significantly different from 
those applicable to other aircraft of the 
same make, model, and series. 

§ 121.909 Approval of Advanced Quali-

fication Program. 

(a) 

Approval process. 

Application for 

approval of an AQP curriculum under 
this subpart is made to the responsible 
Flight Standards office. 

(b) 

Approval criteria. 

Each AQP must 

have separate curriculums for indoc-
trination, qualification, and continuing 
qualification (including upgrade, tran-
sition, and requalification), as specified 
in §§ 121.911, 121.913, and 121.915. All 
AQP curriculums must be based on an 
instructional systems development 
methodology. This methodology must 
incorporate a thorough analysis of the 
certificate holder’s operations, air-
craft, line environment and job func-
tions. All AQP qualification and con-
tinuing qualification curriculums must 
integrate the training and evaluation 
of CRM and technical skills and knowl-
edge. An application for approval of an 
AQP curriculum may be approved if 
the program meets the following re-
quirements: 

(1) The program must meet all the re-

quirements of this subpart. 

(2) Each indoctrination, qualifica-

tion, and continuing qualification 
AQP, and derivatives must include the 
following documentation: 

(i) Initial application for AQP. 
(ii) Initial job task listing. 
(iii) Instructional systems develop-

ment methodology. 

(iv) Qualification standards docu-

ment. 

(v) Curriculum outline. 
(vi) Implementation and operations 

plan. 

(3) Subject to approval by the FAA, 

certificate holders may elect, where 
appropriate, to consolidate informa-
tion about multiple programs within 
any of the documents referenced in 
paragraph (b)(2) of this section. 

(4) The Qualification Standards Doc-

ument must indicate specifically the 
requirements of the parts 61, 63, 65, 121, 
or 135 of this chapter, as applicable, 
that would be replaced by an AQP cur-
riculum. If a practical test require-
ment of parts 61, 63, 65, 121, or 135 of 
this chapter is replaced by an AQP cur-
riculum, the certificate holder must es-
tablish an initial justification and a 
continuing process approved by the 
FAA to show how the AQP curriculum 
provides an equivalent level of safety 
for each requirement that is to be re-
placed. 

(c) 

Application and transition. 

Each 

certificate holder that applies for one 
or more advanced qualification cur-
riculums must include as part of its ap-
plication a proposed transition plan 
(containing a calendar of events) for 
moving from its present approved 
training to the advanced qualification 
program training. 

(d) 

Advanced Qualification Program re-

visions or rescissions of approval. 

If after 

a certificate holder begins training and 
qualification under an AQP, the FAA 
finds the certificate holder is not meet-
ing the provisions of its approved AQP, 
the FAA may require the certificate 
holder, pursuant to § 121.405(e), to make 
revisions. Or if otherwise warranted, 
the FAA may withdraw AQP approval 
and require the certificate holder to 
submit and obtain approval for a plan 
(containing a schedule of events) that 
the certificate holder must comply 
with and use to transition to an ap-
proved training program under subpart 

background image

254 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.911 

N of this part or under subpart H of 
part 135 of this chapter, as appropriate. 
The certificate holder may also volun-
tarily submit and obtain approval for a 
plan (containing a schedule of events) 
to transition to an approved training 
program under subpart N of this part 
or under subpart H of part 135 of this 
chapter, as appropriate. 

(e) 

Approval by the FAA. 

Final ap-

proval of an AQP by the FAA indicates 
the FAA has accepted the justification 
provided under paragraph (b)(4) of this 
section and the applicant’s initial jus-
tification and continuing process es-
tablish an equivalent level of safety for 
each requirement of parts 61, 63, 65, 121, 
and 135 of this chapter that is being re-
placed. 

[Docket No. FAA–2005–20750, 70 FR 54815, 
Sept. 16, 2005, as amended by Docket FAA– 
2018–0119, Amdt. 121–380, 83 FR 9173, Mar. 5, 
2018; Docket No. FAA–2022–1355; Amdt. 121– 
387, 87 FR 75846, Dec. 9, 2022] 

§ 121.911 Indoctrination curriculum. 

Each indoctrination curriculum must 

include the following: 

(a) For newly hired persons being 

trained under an AQP: The certificate 
holder’s policies and operating prac-
tices and general operational knowl-
edge. 

(b) For newly hired crewmembers and 

aircraft dispatchers: General aero-
nautical knowledge appropriate to the 
duty position. 

(c) For instructors: The fundamental 

principles of the teaching and learning 
process; methods and theories of in-
struction; and the knowledge necessary 
to use aircraft, flight training devices, 
flight simulators, and other training 
equipment in advanced qualification 
curriculums, as appropriate. 

(d) For evaluators: General evalua-

tion requirements of the AQP; methods 
of evaluating crewmembers and air-
craft dispatchers and other operations 
personnel, as appropriate, and policies 
and practices used to conduct the kinds 
of evaluations particular to an AQP 
(e.g., LOE). 

§ 121.913 Qualification curriculum. 

Each qualification curriculum must 

contain training, evaluation, and cer-
tification activities, as applicable for 

specific positions subject to the AQP, 
as follows: 

(a) The certificate holder’s planned 

hours of training, evaluation, and su-
pervised operating experience. 

(b) For crewmembers, aircraft dis-

patchers, and other operations per-
sonnel, the following: 

(1) Training, evaluation, and certifi-

cation activities that are aircraft- and 
equipment-specific to qualify a person 
for a particular duty position on, or du-
ties related to the operation of, a spe-
cific make, model, series, or variant 
aircraft. 

(2) A list of and text describing the 

knowledge requirements, subject mate-
rials, job skills, and qualification 
standards of each proficiency objective 
to be trained and evaluated. 

(3) The requirements of the certifi-

cate holder’s approved AQP program 
that are in addition to or in place of, 
the requirements of parts 61, 63, 65, 121 
or 135 of this chapter, including any ap-
plicable practical test requirements. 

(4) A list of and text describing oper-

ating experience, evaluation/remedi-
ation strategies, provisions for special 
tracking, and how recency of experi-
ence requirements will be accom-
plished. 

(c) For flight crewmembers: Initial 

operating experience and line check. 

(d) For instructors, the following as 

appropriate: 

(1) Training and evaluation activities 

to qualify a person to conduct instruc-
tion on how to operate, or on how to 
ensure the safe operation of a par-
ticular make, model, and series air-
craft (or variant). 

(2) A list of and text describing the 

knowledge requirements, subject mate-
rials, job skills, and qualification 
standards of each procedure and pro-
ficiency objective to be trained and 
evaluated. 

(3) A list of and text describing eval-

uation/remediation strategies, stand-
ardization policies and recency require-
ments. 

(e) For evaluators: The requirements 

of paragraph (d)(1) of this section plus 
the following, as appropriate: 

(1) Training and evaluation activities 

that are aircraft and equipment spe-
cific to qualify a person to assess the 
performance of persons who operate or 

background image

255 

Federal Aviation Administration, DOT 

§ 121.915 

who ensure the safe operation of, a par-
ticular make, model, and series air-
craft (or variant). 

(2) A list of and text describing the 

knowledge requirements, subject mate-
rials, job skills, and qualification 
standards of each procedure and pro-
ficiency objective to be trained and 
evaluated. 

(3) A list of and text describing eval-

uation/remediation strategies, stand-
ardization policies and recency require-
ments. 

§ 121.915 Continuing qualification cur-

riculum. 

Each continuing qualification cur-

riculum must contain training and 
evaluation activities, as applicable for 
specific positions subject to the AQP, 
as follows: 

(a) 

Continuing qualification cycle. 

continuing qualification cycle that en-
sures that during each cycle each per-
son qualified under an AQP, including 
instructors and evaluators, will receive 
a mix that will ensure training and 
evaluation on all events and subjects 
necessary to ensure that each person 
maintains proficiency in knowledge, 
technical skills, and cognitive skills 
required for initial qualification in ac-
cordance with the approved continuing 
qualification AQP, evaluation/remedi-
ation strategies, and provisions for spe-
cial tracking. Each continuing quali-
fication cycle must include at least the 
following: 

(1) 

Evaluation period. 

Initially the 

continuing qualification cycle is com-
prised of two or more evaluation peri-
ods of equal duration. Each person 
qualified under an AQP must receive 
ground training and flight training, as 
appropriate, and an evaluation of pro-
ficiency during each evaluation period 
at a training facility. The number and 
frequency of training sessions must be 
approved by the FAA. 

(2) 

Training. 

Continuing qualification 

must include training in all tasks, pro-
cedures and subjects required in ac-
cordance with the approved program 
documentation, as follows: 

(i) For pilots in command, seconds in 

command, and flight engineers, First 
Look in accordance with the certifi-
cate holder’s FAA-approved program 
documentation. 

(ii) For pilots in command, seconds 

in command, flight engineers, flight at-
tendants, instructors and evaluators: 
Ground training including a general re-
view of knowledge and skills covered in 
qualification training, updated infor-
mation on newly developed procedures, 
and safety information. 

(iii) For crewmembers, instructors, 

evaluators, and other operational per-
sonnel who conduct their duties in 
flight: Proficiency training in an air-
craft, flight training device, flight sim-
ulator, or other equipment, as appro-
priate, on normal, abnormal, and emer-
gency flight procedures and maneuvers. 

(iv) For dispatchers and other oper-

ational personnel who do not conduct 
their duties in flight: ground training 
including a general review of knowl-
edge and skills covered in qualification 
training, updated information on newly 
developed procedures, safety related in-
formation, and, if applicable, a line ob-
servation program. 

(v) For instructors and evaluators: 

Proficiency training in the type flight 
training device or the type flight simu-
lator, as appropriate, regarding train-
ing equipment operation. For instruc-
tors and evaluators who are limited to 
conducting their duties in flight sim-
ulators or flight training devices: 
Training in operational flight proce-
dures and maneuvers (normal, abnor-
mal, and emergency). 

(b) 

Evaluation of performance. 

Con-

tinuing qualification must include 
evaluation of performance on a sample 
of those events and major subjects 
identified as diagnostic of competence 
and approved for that purpose by the 
FAA. The following evaluation require-
ments apply: 

(1) Evaluation of proficiency as fol-

lows: 

(i) For pilots in command, seconds in 

command, and flight engineers: An 
evaluation of proficiency, portions of 
which may be conducted in an aircraft, 
flight simulator, or flight training de-
vice as approved in the certificate 
holder’s curriculum that must be com-
pleted during each evaluation period. 

(ii) For any other persons covered by 

an AQP, a means to evaluate their pro-
ficiency in the performance of their du-
ties in their assigned tasks in an oper-
ational setting. 

background image

256 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.917 

(2) Line checks as follows: 
(i) Except as provided in paragraph 

(b)(2)(ii) of this section, for pilots in 
command: A line check conducted in 
an aircraft during actual flight oper-
ations under part 121 or part 135 of this 
chapter or during operationally (line) 
oriented flights, such as ferry flights or 
proving flights. A line check must be 
completed in the calendar month at 
the midpoint of the evaluation period. 

(ii) With the FAA’s approval, a no- 

notice line check strategy may be used 
in lieu of the line check required by 
paragraph (b)(2)(i) of this section. The 
certificate holder who elects to exer-
cise this option must ensure the ‘‘no- 
notice’’ line checks are administered so 
the flight crewmembers are not noti-
fied before the evaluation. In addition, 
the AQP certificate holder must ensure 
that each pilot in command receives at 
least one ‘‘no-notice’’ line check every 
24 months. As a minimum, the number 
of ‘‘no-notice’’ line checks adminis-
tered each calendar year must equal at 
least 50% of the certificate holder’s 
pilot-in-command workforce in accord-
ance with a strategy approved by the 
FAA for that purpose. In addition, the 
line checks to be conducted under this 
paragraph must be conducted over all 
geographic areas flown by the certifi-
cate holder in accordance with a sam-
pling methodology approved by the 
FAA for that purpose. 

(iii) During the line checks required 

under paragraph (b)(2)(i) and (ii) of this 
section, each person performing duties 
as a pilot in command, second in com-
mand, or flight engineer for that flight, 
must be individually evaluated to de-
termine whether the person remains 
adequately trained and currently pro-
ficient with respect to the particular 
aircraft, crew position, and type of op-
eration in which he or she serves; and 
the person has sufficient knowledge 
and skills to operate effectively as part 
of a crew. The evaluator must be a 
check airman, an APD, or an FAA in-
spector and must hold the certificates 
and ratings required of the pilot in 
command. 

(c) 

Recency of experience. 

For pilots in 

command, seconds in command, flight 
engineers, aircraft dispatchers, instruc-
tors, evaluators, and flight attendants, 

approved recency of experience require-
ments appropriate to the duty position. 

(d) 

Duration of cycles and periods. 

Ini-

tially, the continuing qualification 
cycle approved for an AQP must not 
exceed 24 calendar months in duration, 
and must include two or more evalua-
tion periods of equal duration. After 
that, upon demonstration by a certifi-
cate holder that an extension is war-
ranted, the FAA may approve an exten-
sion of the continuing qualification 
cycle to a maximum of 36 calendar 
months in duration. 

(e) 

Requalification. 

Each continuing 

qualification curriculum must include 
a curriculum segment that covers the 
requirements for requalifying a crew-
member, aircraft dispatcher, other op-
erations personnel, instructor, or eval-
uator who has not maintained con-
tinuing qualification. 

§ 121.917 Other requirements. 

In addition to the requirements of 

§§ 121.913 and 121.915, each AQP quali-
fication and continuing qualification 
curriculum must include the following 
requirements: 

(a) Integrated Crew Resource Man-

agement (CRM) or Dispatcher Resource 
Management (DRM) ground and if ap-
propriate flight training applicable to 
each position for which training is pro-
vided under an AQP. 

(b) Approved training on and evalua-

tion of skills and proficiency of each 
person being trained under AQP to use 
his or her resource management skills 
and his or her technical (piloting or 
other) skills in an actual or simulated 
operations scenario. For flight crew-
members this training and evaluation 
must be conducted in an approved 
flight training device, flight simulator, 
or, if approved under this subpart, in 
an aircraft. 

(c) Data collection and analysis proc-

esses acceptable to the FAA that will 
ensure the certificate holder provides 
performance information on its crew-
members, dispatchers, instructors, 
evaluators, and other operations per-
sonnel that will enable the certificate 
holder and the FAA to determine 
whether the form and content of train-
ing and evaluation activities are satis-
factorily accomplishing the overall ob-
jectives of the curriculum. 

background image

257 

Federal Aviation Administration, DOT 

§ 121.923 

§ 121.919 Certification. 

A person subject to an AQP is eligi-

ble to receive a commercial or airline 
transport pilot, flight engineer, or air-
craft dispatcher certificate or appro-
priate rating based on the successful 
completion of training and evaluation 
events accomplished under that pro-
gram if the following requirements are 
met: 

(a) Training and evaluation of re-

quired knowledge and skills under the 
AQP must meet minimum certification 
and rating criteria established by the 
FAA in parts 61, 63, or 65 of this chap-
ter. The FAA may approve alternatives 
to the certification and rating criteria 
of parts 61, 63, or 65 of this chapter, in-
cluding practical test requirements, if 
it can be demonstrated that the newly 
established criteria or requirements 
represent an equivalent or better meas-
ure of crewmember or dispatcher com-
petence, operational proficiency, and 
safety. 

(b) The applicant satisfactorily com-

pletes the appropriate qualification 
curriculum. 

(c) The applicant shows competence 

in required technical knowledge and 
skills (e.g., piloting or other) and crew 
resource management (e.g., CRM or 
DRM) knowledge and skills in sce-
narios (

i.e.

, LOE) that test both types 

of knowledge and skills together. 

(d) The applicant is otherwise eligi-

ble under the applicable requirements 
of part 61, 63, or 65 of this chapter. 

(e) The applicant has been trained to 

proficiency on the certificate holder’s 
approved AQP Qualification Standards 
as witnessed by an instructor, check 
airman, or APD and has passed an LOE 
administered by an APD or the FAA. 

§ 121.921 Training devices and simula-

tors. 

(a) Each flight training device or air-

plane simulator that will be used in an 
AQP for one of the following purposes 
must be evaluated by the FAA for as-
signment of a flight training device or 
flight simulator qualification level: 

(1) Required evaluation of individual 

or crew proficiency. 

(2) Training to proficiency or train-

ing activities that determine if an indi-
vidual or crew is ready for an evalua-
tion of proficiency. 

(3) Activities used to meet recency of 

experience requirements. 

(4) Line Operational Simulations 

(LOS). 

(b) Approval of other training equip-

ment. 

(1) Any training equipment that is 

intended to be used in an AQP for pur-
poses other than those set forth in 
paragraph (a) of this section must be 
approved by the FAA for its intended 
use. 

(2) An applicant for approval of train-

ing equipment under this paragraph 
must identify the device by its nomen-
clature and describe its intended use. 

(3) Each training device approved for 

use in an AQP must be part of a con-
tinuing program to provide for its serv-
iceability and fitness to perform its in-
tended function as approved by the 
FAA. 

§ 121.923 Approval of training, quali-

fication, or evaluation by a person 

who provides training by arrange-

ment. 

(a) A certificate holder operating 

under part 121 or part 135 of this chap-
ter may arrange to have AQP training, 
qualification, evaluation, or certifi-
cation functions performed by another 
person (a ‘‘training provider’’) if the 
following requirements are met: 

(1) The training provider is certifi-

cated under part 119 or 142 of this chap-
ter. 

(2) The training provider’s AQP 

training and qualification curriculums, 
curriculum segments, or portions of 
curriculum segments must be provi-
sionally approved by the FAA. A train-
ing provider may apply for provisional 
approval independently or in conjunc-
tion with a certificate holder’s applica-
tion for AQP approval. Application for 
provisional approval must be made to 
the responsible Flight Standards office. 

(3) The specific use of provisionally 

approved curriculums, curriculum seg-
ments, or portions of curriculum seg-
ments in a certificate holder’s AQP 
must be approved by the FAA as set 
forth in § 121.909. 

(b) An applicant for provisional ap-

proval of a curriculum, curriculum seg-
ment, or portion of a curriculum seg-
ment under this paragraph must show 
the following requirements are met: 

background image

258 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.925 

(1) The applicant must have a cur-

riculum for the qualification and con-
tinuing qualification of each instructor 
and evaluator used by the applicant. 

(2) The applicant’s facilities must be 

found by the FAA to be adequate for 
any planned training, qualification, or 
evaluation for a certificate holder op-
erating under part 121 or part 135 of 
this chapter. 

(3) Except for indoctrination curricu-

lums, the curriculum, curriculum seg-
ment, or portion of a curriculum seg-
ment must identify the specific make, 
model, and series aircraft (or variant) 
and crewmember or other positions for 
which it is designed. 

(c) A certificate holder who wants ap-

proval to use a training provider’s pro-
visionally approved curriculum, cur-
riculum segment, or portion of a cur-
riculum segment in its AQP, must 
show the following requirements are 
met: 

(1) Each instructor or evaluator used 

by the training provider must meet all 
the qualification and continuing quali-
fication requirements that apply to 
employees of the certificate holder 
that has arranged for the training, in-
cluding knowledge of the certificate 
holder’s operations. 

(2) Each provisionally approved cur-

riculum, curriculum segment, or por-
tion of a curriculum segment must be 
approved by the FAA for use in the cer-
tificate holder’s AQP. The FAA will ei-
ther provide approval or require modi-
fications to ensure that each cur-
riculum, curriculum segment, or por-
tion of a curriculum segment is appli-
cable to the certificate holder’s AQP. 

[Docket No. FAA–2005–20750, 70 FR 54815, 
Sept. 16, 2005, as amended by Docket FAA– 
2018–0119, Amdt. 121–380, 83 FR 9173, Mar. 5, 
2018; Doc. No. FAA–2022–1355; Amdt. 121–387; 
87 FR 75846, Dec. 9, 2022] 

§ 121.925 Recordkeeping requirements. 

Each certificate holder conducting 

an approved AQP must establish and 
maintain records in sufficient detail to 
demonstrate the certificate holder is in 
compliance with all the requirements 
of the AQP and this subpart. 

Subpart Z—Hazardous Materials 

Training Program 

S

OURCE

: Docket No. FAA–2003–15085, 70 FR 

58823, Oct. 7, 2005, unless otherwise noted. 

§ 121.1001 Applicability and defini-

tions. 

(a) This subpart prescribes the re-

quirements applicable to each certifi-
cate holder for training each crew-
member and person performing or di-
rectly supervising any of the following 
job functions involving any item for 
transport on board an aircraft: 

(1) Acceptance; 
(2) Rejection; 
(3) Handling; 
(4) Storage incidental to transport; 
(5) Packaging of company material; 

or 

(6) Loading. 
(b) 

Definitions. 

For purposes of this 

subpart, the following definitions 
apply: 

(1) 

Company material (COMAT)

—Mate-

rial owned or used by a certificate 
holder. 

(2) 

Initial hazardous materials train-

ing

—The basic training required for 

each newly hired person, or each per-
son changing job functions, who per-
forms or directly supervises any of the 
job functions specified in paragraph (a) 
of this section. 

(3) 

Recurrent hazardous materials 

training

—The training required every 

24 months for each person who has sat-
isfactorily completed the certificate 
holder’s approved initial hazardous ma-
terials training program and performs 
or directly supervises any of the job 
functions specified in paragraph (a) of 
this section. 

§ 121.1003 Hazardous materials train-

ing: General. 

(a) Each certificate holder must es-

tablish and implement a hazardous ma-
terials training program that: 

(1) Satisfies the requirements of Ap-

pendix O of this part; 

(2) Ensures that each person per-

forming or directly supervising any of 
the job functions specified in 
§ 121.1001(a) is trained to comply with 
all applicable parts of 49 CFR parts 171 
through 180 and the requirements of 
this subpart; and 

background image

259 

Federal Aviation Administration, DOT 

§ 121.1005 

(3) Enables the trained person to rec-

ognize items that contain, or may con-
tain, hazardous materials regulated by 
49 CFR parts 171 through 180. 

(b) Each certificate holder must pro-

vide initial hazardous materials train-
ing and recurrent hazardous materials 
training to each crewmember and per-
son performing or directly supervising 
any of the job functions specified in 
§ 121.1001(a). 

(c) Each certificate holder’s haz-

ardous materials training program 
must be approved by the FAA prior to 
implementation. 

§ 121.1005 Hazardous materials train-

ing required. 

(a) 

Training requirement. 

Except as 

provided in paragraphs (b), (c) and (f) of 
this section, no certificate holder may 
use any crewmember orperson to per-
form any of the job functions or direct 
supervisory responsibilities, and no 
person may perform any of the job 
functions or direct supervisory respon-
sibilities, specified in § 121.1001(a) un-
less that person has satisfactorily com-
pleted the certificate holder’s FAA-ap-
proved initial or recurrent hazardous 
materials training program within the 
past 24 months. 

(b) 

New hire or new job function. 

A per-

son who is a new hire and has not yet 
satisfactorily completed the required 
initial hazardous materials training, or 
a person who is changing job functions 
and has not received initial or recur-
rent training for a job function involv-
ing storage incidental to transport, or 
loading of items for transport on an 
aircraft, may perform those job func-
tions for not more than 30 days from 
the date of hire or a change in job func-
tion, if the person is under the direct 
visual supervision of a person who is 
authorized by the certificate holder to 
supervise that person and who has suc-
cessfully completed the certificate 
holder’s FAA-approved initial or recur-
rent training program within the past 
24 months. 

(c) 

Persons who work for more than one 

certificate holder. 

A certificate holder 

that uses or assigns a person to per-
form or directly supervise a job func-
tion specified in § 121.1001(a), when that 
person also performs or directly super-
vises the same job function for another 

certificate holder, need only train that 
person in its own policies and proce-
dures regarding those job functions, if 
all of the following are met: 

(1) The certificate holder using this 

exception receives written verification 
from the person designated to hold the 
training records representing the other 
certificate holder that the person has 
satisfactorily completed hazardous ma-
terials training for the specific job 
function under the other certificate 
holder’s FAA approved hazardous ma-
terial training program under Appen-
dix O of this part; and 

(2) The certificate holder who trained 

the person has the same operations 
specifications regarding the accept-
ance, handling, and transport of haz-
ardous materials as the certificate 
holder using this exception. 

(d) 

Recurrent hazardous materials 

training—Completion date. 

A person who 

satisfactorily completes recurrent haz-
ardous materials training in the cal-
endar month before, or the calendar 
month after, the month in which the 
recurrent training is due, is considered 
to have taken that training during the 
month in which it is due. If the person 
completes this training earlier than 
the month before it is due, the month 
of the completion date becomes his or 
her new anniversary month. 

(e) 

Repair stations. 

A certificate hold-

er must ensure that each repair station 
performing work for, or on the certifi-
cate holder’s behalf is notified in writ-
ing of the certificate holder’s policies 
and operations specification authoriza-
tion permitting or prohibition against 
the acceptance, rejection, handling, 
storage incidental to transport, and 
transportation of hazardous materials, 
including company material. This noti-
fication requirement applies only to re-
pair stations that are regulated by 49 
CFR parts 171 through 180. 

(f) 

Certificate holders operating at for-

eign locations. 

This exception applies if 

a certificate holder operating at a for-
eign location where the country re-
quires the certificate holder to use per-
sons working in that country to load 
aircraft. In such a case, the certificate 
holder may use those persons even if 
they have not been trained in accord-
ance with the certificate holder’s FAA 
approved hazardous materials training 

background image

260 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.1007 

program. Those persons, however, must 
be under the direct visual supervision 
of someone who has successfully com-
pleted the certificate holder’s approved 
initial or recurrent hazardous mate-
rials training program in accordance 
with this part. This exception applies 
only to those persons who load air-
craft. 

§ 121.1007 Hazardous materials train-

ing records. 

(a) 

General requirement. 

Each certifi-

cate holder must maintain a record of 
all training required by this part re-
ceived within the preceding three years 
for each person who performs or di-
rectly supervises a job function speci-
fied in § 121.1001(a). The record must be 
maintained during the time that the 
person performs or directly supervises 
any of those job functions, and for 90 
days thereafter. These training records 
must be kept for direct employees of 
the certificate holder, as well as inde-
pendent contractors, subcontractors, 
and any other person who performs or 
directly supervises these job functions 
for or on behalf of the certificate hold-
er. 

(b) 

Location of records. 

The certificate 

holder must retain the training records 
required by paragraph (a) of this sec-
tion for all initial and recurrent train-
ing received within the preceding 3 
years for all persons performing or di-
rectly supervising the job functions 
listed in Appendix O at a designated lo-
cation. The records must be available 
upon request at the location where the 
trained person performs or directly su-
pervises the job function specified in 
§ 121.1001(a). Records may be main-
tained electronically and provided on 
location electronically. When the per-
son ceases to perform or directly super-
vise a hazardous materials job func-
tion, the certificate holder must retain 
the hazardous materials training 
records for an additional 90 days and 
make them available upon request at 
the last location where the person 
worked. 

(c) 

Content of records. 

Each record 

must contain the following: 

(1) The individual’s name; 
(2) The most recent training comple-

tion date; 

(3) A description, copy or reference to 

training materials used to meet the 
training requirement; 

(4) The name and address of the orga-

nization providing the training; and 

(5) A copy of the certification issued 

when the individual was trained, which 
shows that a test has been completed 
satisfactorily. 

(d) 

New hire or new job function. 

Each 

certificate holder using a person under 
the exception in § 121.1005(b) must 
maintain a record for that person. The 
records must be available upon request 
at the location where the trained per-
son performs or directly supervises the 
job function specified in § 121.1001(a). 
Records may be maintained electroni-
cally and provided on location elec-
tronically. The record must include the 
following: 

(1) A signed statement from an au-

thorized representative of the certifi-
cate holder authorizing the use of the 
person in accordance with the excep-
tion; 

(2) The date of hire or change in job 

function; 

(3) The person’s name and assigned 

job function; 

(4) The name of the supervisor of the 

job function; and 

(5) The date the person is to complete 

hazardous materials training in accord-
ance with appendix O of this part. 

Subpart AA—Continued Airworthi-

ness and Safety Improve-
ments 

S

OURCE

: Amdt. 121–336, 72 FR 63411, Nov. 8, 

2007, unless otherwise noted. 

§ 121.1101 Purpose and definition. 

(a) This subpart requires persons 

holding an air carrier or operating cer-
tificate under part 119 of this chapter 
to support the continued airworthiness 
of each airplane. These requirements 
may include, but are not limited to, re-
vising the maintenance program, incor-
porating design changes, and incor-
porating revisions to Instructions for 
Continued Airworthiness. 

(b) [Reserved] 

[Amdt. 121–336, 72 FR 63411, Nov. 8, 2007, as 
amended by Docket FAA–2018–0119, Amdt. 
121–380, 83 FR 9173, Mar. 5, 2018] 

background image

261 

Federal Aviation Administration, DOT 

§ 121.1107 

§ 121.1103 [Reserved] 

§ 121.1105 Aging airplane inspections 

and records reviews. 

(a) 

Applicability. 

This section applies 

to all airplanes operated by a certifi-
cate holder under this part, except for 
those airplanes operated between any 
point within the State of Alaska and 
any other point within the State of 
Alaska. 

(b) 

Operation after inspection and 

records review. 

After the dates specified 

in this paragraph, a certificate holder 
may not operate an airplane under this 
part unless the Administrator has noti-
fied the certificate holder that the Ad-
ministrator has completed the aging 
airplane inspection and records review 
required by this section. During the in-
spection and records review, the cer-
tificate holder must demonstrate to 
the Administrator that the mainte-
nance of age-sensitive parts and com-
ponents of the airplane has been ade-
quate and timely enough to ensure the 
highest degree of safety. 

(1) 

Airplanes exceeding 24 years in serv-

ice on December 8, 2003; initial and repet-
itive inspections and records reviews. 

For 

an airplane that has exceeded 24 years 
in service on December 8, 2003, no later 
than December 5, 2007, and thereafter 
at intervals not to exceed 7 years. 

(2) 

Airplanes exceeding 14 years in serv-

ice but not 24 years in service on Decem-
ber 8, 2003; initial and repetitive inspec-
tions and records reviews. 

For an air-

plane that has exceeded 14 years in 
service but not 24 years in service on 
December 8, 2003, no later than Decem-
ber 4, 2008, and thereafter at intervals 
not to exceed 7 years. 

(3) 

Airplanes not exceeding 14 years in 

service on December 8, 2003; initial and re-
petitive inspections and records reviews. 

For an airplane that has not exceeded 
14 years in service on December 8, 2003, 
no later than 5 years after the start of 
the airplane’s 15th year in service and 
thereafter at intervals not to exceed 7 
years. 

(c) 

Unforeseen schedule conflict. 

In the 

event of an unforeseen scheduling con-
flict for a specific airplane, the Admin-
istrator may approve an extension of 
up to 90 days beyond an interval speci-
fied in paragraph (b) of this section. 

(d) 

Airplane and records availability. 

The certificate holder must make 
available to the Administrator each 
airplane for which an inspection and 
records review is required under this 
section, in a condition for inspection 
specified by the Administrator, to-
gether with records containing the fol-
lowing information: 

(1) Total years in service of the air-

plane; 

(2) Total time in service of the air-

frame; 

(3) Total flight cycles of the air-

frame; 

(4) Date of the last inspection and 

records review required by this section; 

(5) Current status of life-limited 

parts of the airframe; 

(6) Time since the last overhaul of all 

structural components required to be 
overhauled on a specific time basis; 

(7) Current inspection status of the 

airplane, including the time since the 
last inspection required by the inspec-
tion program under which the airplane 
is maintained; 

(8) Current status of applicable air-

worthiness directives, including the 
date and methods of compliance, and if 
the airworthiness directive involves re-
curring action, the time and date when 
the next action is required; 

(9) A list of major structural alter-

ations; and 

(10) A report of major structural re-

pairs and the current inspection status 
for those repairs. 

(e) 

Notification to Administrator. 

Each 

certificate holder must notify the Ad-
ministrator at least 60 days before the 
date on which the airplane and air-
plane records will be made available 
for the inspection and records review. 

[Doc. No. FAA–1999–5401, 67 FR 72761, Dec. 6, 
2002, as amended by Amdt. 121–284, 70 FR 
5532, Feb. 2, 2005; Amdt. 121–310, 70 FR 23936, 
May 6, 2005. Redesignated by Amdt. 121–336, 
72 FR 63412, Nov. 8, 2007] 

§ 121.1107 Repairs assessment for pres-

surized fuselages. 

(a) No certificate holder may operate 

an Airbus Model A300 (excluding the 
–600 series), British Aerospace Model 
BAC 1–11, Boeing Model 707, 720, 727, 
737, or 747, McDonnell Douglas Model 
DC–8, DC–9/MD–80 or DC–10, Fokker 
Model F28, or Lockheed Model L–1011 

background image

262 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.1109 

airplane beyond the applicable flight 
cycle implementation time specified 
below, or May 25, 2001, whichever oc-
curs later, unless operations specifica-
tions have been issued to reference re-
pair assessment guidelines applicable 
to the fuselage pressure boundary (fu-
selage skin, door skin, and bulkhead 
webs), and those guidelines are incor-
porated in its maintenance program. 
The repair assessment guidelines must 
be approved by the responsible Aircraft 
Certification Service office for the type 
certificate for the affected airplane. 

(1) For the Airbus Model A300 (ex-

cluding the –600 series), the flight cycle 
implementation time is: 

(i) Model B2: 36,000 flights. 
(ii) Model B4–100 (including Model 

B4–2C): 30,000 flights above the window 
line, and 36,000 flights below the win-
dow line. 

(iii) Model B4–200: 25,500 flights above 

the window line, and 34,000 flights 
below the window line. 

(2) For all models of the British Aero-

space BAC 1–11, the flight cycle imple-
mentation time is 60,000 flights. 

(3) For all models of the Boeing 707, 

the flight cycle implementation time is 
15,000 flights. 

(4) For all models of the Boeing 720, 

the flight cycle implementation time is 
23,000 flights. 

(5) For all models of the Boeing 727, 

the flight cycle implementation time is 
45,000 flights. 

(6) For all models of the Boeing 737, 

the flight cycle implementation time is 
60,000 flights. 

(7) For all models of the Boeing 747, 

the flight cycle implementation time is 
15,000 flights. 

(8) For all models of the McDonnell 

Douglas DC–8, the flight cycle imple-
mentation time is 30,000 flights. 

(9) For all models of the McDonnell 

Douglas DC–9/MD–80, the flight cycle 
implementation time is 60,000 flights. 

(10) For all models of the McDonnell 

Douglas DC–10, the flight cycle imple-
mentation time is 30,000 flights. 

(11) For all models of the Lockheed 

L–1011, the flight cycle implementation 
time is 27,000 flights. 

(12) For the Fokker F–28 Mark 1000, 

2000, 3000, and 4000, the flight cycle im-
plementation time is 60,000 flights. 

(b) [Reserved] 

[Doc. No. 29104, 65 FR 24125, Apr. 25, 2000; 65 
FR 50744, Aug. 21, 2000, as amended by Amdt. 
121–282, 66 FR 23130, May 7, 2001; ; Amdt. 121– 
305, 69 FR 45942, July 30, 2004. Redesignated 
and amended by Amdt. 121–336, 72 FR 63412, 
Nov. 8, 2007; Docket FAA–2018–0119, Amdt. 
121–380, 83 FR 9173, Mar. 5, 2018] 

§ 121.1109 Supplemental inspections. 

(a) 

Applicability. 

Except as specified 

in paragraph (b) of this section, this 
section applies to transport category, 
turbine powered airplanes with a type 
certificate issued after January 1, 1958, 
that as a result of original type certifi-
cation or later increase in capacity 
have— 

(1) A maximum type certificated pas-

senger seating capacity of 30 or more; 
or 

(2) A maximum payload capacity of 

7,500 pounds or more. 

(b) 

Exception. 

This section does not 

apply to an airplane operated by a cer-
tificate holder under this part between 
any point within the State of Alaska 
and any other point within the State of 
Alaska. 

(c) 

General requirements. 

After Decem-

ber 20, 2010, a certificate holder may 
not operate an airplane under this part 
unless the following requirements have 
been met: 

(1) 

Baseline Structure. 

The certificate 

holder’s maintenance program for the 
airplane includes FAA-approved dam-
age-tolerance-based inspections and 
procedures for airplane structure sus-
ceptible to fatigue cracking that could 
contribute to a catastrophic failure. 
For the purpose of this section, this 
structure is termed ‘‘fatigue critical 
structure.’’ 

(2) 

Adverse effects of repairs, alter-

ations, and modifications. 

The mainte-

nance program for the airplane in-
cludes a means for addressing the ad-
verse effects repairs, alterations, and 
modifications may have on fatigue 
critical structure and on inspections 
required by paragraph (c)(1) of this sec-
tion. The means for addressing these 
adverse effects must be approved by 
the responsible Aircraft Certification 
Service office. 

(3) 

Changes to maintenance program. 

The changes made to the maintenance 
program required by paragraphs (c)(1) 

background image

263 

Federal Aviation Administration, DOT 

§ 121.1113 

and (c)(2) of this section, and any later 
revisions to these changes, must be 
submitted to the Principal Mainte-
nance Inspector for review and ap-
proval. 

[Doc. No. FAA–1999–5401, 70 FR 5532, Feb. 2, 
2005. Redesignated by Amdt. 121–336, 72 FR 
63412, Nov. 8, 2007; Amdt. 121–337, 72 FR 70508, 
Dec. 12, 2007; Docket FAA–2018–0119, Amdt. 
121–380, 83 FR 9173, Mar. 5, 2018] 

§ 121.1111 Electrical wiring inter-

connection systems (EWIS) mainte-
nance program. 

(a) Except as provided in paragraph 

(f) of this section, this section applies 
to transport category, turbine-powered 
airplanes with a type certificate issued 
after January 1, 1958, that, as a result 
of original type certification or later 
increase in capacity, have— 

(1) A maximum type-certificated pas-

senger capacity of 30 or more, or 

(2) A maximum payload capacity of 

7500 pounds or more. 

(b) After March 10, 2011, no certifi-

cate holder may operate an airplane 
identified in paragraph (a) of this sec-
tion unless the maintenance program 
for that airplane includes inspections 
and procedures for electrical wiring 
interconnection systems (EWIS). 

(c) The proposed EWIS maintenance 

program changes must be based on 
EWIS Instructions for Continued Air-
worthiness (ICA) that have been devel-
oped in accordance with the provisions 
of Appendix H of part 25 of this chapter 
applicable to each affected airplane (in-
cluding those ICA developed for supple-
mental type certificates installed on 
each airplane) and that have been ap-
proved by the responsible Aircraft Cer-
tification Service office. 

(1) For airplanes subject to § 26.11 of 

this chapter, the EWIS ICA must com-
ply with paragraphs H25.5(a)(1) and (b). 

(2) For airplanes subject to § 25.1729 of 

this chapter, the EWIS ICA must com-
ply with paragraph H25.4 and all of 
paragraph H25.5. 

(d) After March 10, 2011, before re-

turning an airplane to service after any 
alterations for which EWIS ICA are de-
veloped, the certificate holder must in-
clude in the airplane’s maintenance 
program inspections and procedures for 
EWIS based on those ICA. 

(e) The EWIS maintenance program 

changes identified in paragraphs (c) 
and (d) of this section and any later 
EWIS revisions must be submitted to 
the Principal Inspector for review and 
approval. 

(f) This section does not apply to the 

following airplane models: 

(1) Lockheed L–188 
(2) Bombardier CL–44 
(3) Mitsubishi YS–11 
(4) British Aerospace BAC 1–11 
(5) Concorde 
(6) deHavilland D.H. 106 Comet 4C 
(7) VFW-Vereinigte Flugtechnische 

Werk VFW–614 

(8) Illyushin Aviation IL 96T 
(9) Bristol Aircraft Britannia 305 
(10) Handley Page Herald Type 300 
(11) Avions Marcel Dassault—Breguet 

Aviation Mercure 100C 

(12) Airbus Caravelle 
(13) Lockheed L–300 

[Amdt. 121–336, 72 FR 63411, Nov. 8, 2007, as 
amended by Docket FAA–2018–0119, Amdt. 
121–380, 83 FR 9173, Mar. 5, 2018] 

§ 121.1113 Fuel tank system mainte-

nance program. 

(a) Except as provided in paragraph 

(g) of this section, this section applies 
to transport category, turbine-powered 
airplanes with a type certificate issued 
after January 1, 1958, that, as a result 
of original type certification or later 
increase in capacity, have— 

(1) A maximum type-certificated pas-

senger capacity of 30 or more, or 

(2) A maximum payload capacity of 

7500 pounds or more. 

(b) For each airplane on which an 

auxiliary fuel tank is installed under a 
field approval, before June 16, 2008, the 
certificate holder must submit to the 
responsible Aircraft Certification Serv-
ice office proposed maintenance in-
structions for the tank that meet the 
requirements of Special Federal Avia-
tion Regulation No. 88 (SFAR 88) of 
this chapter. 

(c) After December 16, 2008, no certifi-

cate holder may operate an airplane 
identified in paragraph (a) of this sec-
tion unless the maintenance program 
for that airplane has been revised to in-
clude applicable inspections, proce-
dures, and limitations for fuel tanks 
systems. 

background image

264 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.1115 

(d) The proposed fuel tank system 

maintenance program revisions must 
be based on fuel tank system Instruc-
tions for Continued Airworthiness 
(ICA) that have been developed in ac-
cordance with the applicable provisions 
of SFAR 88 of this chapter or § 25.1529 
and part 25, Appendix H, of this chap-
ter, in effect on June 6, 2001 (including 
those developed for auxiliary fuel 
tanks, if any, installed under supple-
mental type certificates or other de-
sign approval) and that have been ap-
proved by the responsible Aircraft Cer-
tification Service office. 

(e) After December 16, 2008, before re-

turning an aircraft to service after any 
alteration for which fuel tank ICA are 
developed under SFAR 88 or under 
§ 25.1529 in effect on June 6, 2001, the 
certificate holder must include in the 
maintenance program for the airplane 
inspections and procedures for the fuel 
tank system based on those ICA. 

(f) The fuel tank system maintenance 

program changes identified in para-
graphs (d) and (e) of this section and 
any later fuel tank system revisions 
must be submitted to the Principal In-
spector for review and approval. 

(g) This section does not apply to the 

following airplane models: 

(1) Bombardier CL–44 
(2) Concorde 
(3) deHavilland D.H. 106 Comet 4C 
(4) VFW–Vereinigte Flugtechnische 

Werk VFW–614 

(5) Illyushin Aviation IL 96T 
(6) Bristol Aircraft Britannia 305 
(7) Handley Page Herald Type 300 
(8) Avions Marcel Dassault—Breguet 

Aviation Mercure 100C 

(9) Airbus Caravelle 
(10) Lockheed L–300 

[Amdt. 121–336, 72 FR 63411, Nov. 8, 2007, as 
amended by Docket FAA–2018–0119, Amdt. 
121–380, 83 FR 9173, Mar. 5, 2018] 

§ 121.1115 Limit of validity. 

(a) 

Applicability. 

This section applies 

to certificate holders operating any 
transport category, turbine-powered 
airplane with a maximum takeoff gross 
weight greater than 75,000 pounds and a 
type certificate issued after January 1, 
1958, regardless of whether the max-
imum takeoff gross weight is a result 
of an original type certificate or a 
later design change. This section also 

applies to certificate holders operating 
any transport category, turbine-pow-
ered airplane with a type certificate 
issued after January 1, 1958, regardless 
of the maximum takeoff gross weight, 
for which a limit of validity of the en-
gineering data that supports the struc-
tural maintenance program (hereafter 
referred to as LOV) is required in ac-
cordance with § 25.571 or § 26.21 of this 
chapter after January 14, 2011. 

(b) 

Limit of validity. 

No certificate 

holder may operate an airplane identi-
fied in paragraph (a) of this section 
after the applicable date identified in 
Table 1 of this section unless an Air-
worthiness Limitations section ap-
proved under Appendix H to part 25 or 
§ 26.21 of this chapter is incorporated 
into its maintenance program. The 
ALS must— 

(1) Include an LOV approved under 

§ 25.571 or § 26.21 of this chapter, as ap-
plicable, except as provided in para-
graph (f) of this section; and 

(2) Be clearly distinguishable within 

its maintenance program. 

(c) 

Operation of airplanes excluded 

from § 26.21. 

No certificate holder may 

operate an airplane identified in 
§ 26.21(g) of this chapter after July 14, 
2013, unless an Airworthiness Limita-
tions section approved under Appendix 
H to part 25 or § 26.21 of this chapter is 
incorporated into its maintenance pro-
gram. The ALS must— 

(1) Include an LOV approved under 

§ 25.571 or § 26.21 of this chapter, as ap-
plicable, except as provided in para-
graph (f) of this section; and 

(2) Be clearly distinguishable within 

its maintenance program. 

(d) 

Extended limit of validity. 

No cer-

tificate holder may operate an airplane 
beyond the LOV, or extended LOV, 
specified in paragraph (b)(1), (c), (d), or 
(f) of this section, as applicable, unless 
the following conditions are met: 

(1) An ALS must be incorporated into 

its maintenance program that— 

(i) Includes an extended LOV and any 

widespread fatigue damage airworthi-
ness limitation items approved under 
§ 26.23 of this chapter; and 

(ii) Is approved under § 26.23 of this 

chapter. 

(2) The extended LOV and the air-

worthiness limitation items pertaining 
to widespread fatigue damage must be 

background image

265 

Federal Aviation Administration, DOT 

§ 121.1115 

clearly distinguishable within its 
maintenance program. 

(e) 

Principal Maintenance Inspector ap-

proval. 

Certificate holders must submit 

the maintenance program revisions re-
quired by paragraphs (b), (c), and (d) of 
this section to the Principal Mainte-
nance Inspector for review and ap-
proval. 

(f) 

Exception. 

For any airplane for 

which an LOV has not been approved as 
of the applicable compliance date spec-
ified in paragraph (c) or Table 1 of this 
section, instead of including an ap-
proved LOV in the ALS, an operator 
must include the applicable default 
LOV specified in Table 1 or Table 2 of 
this section, as applicable, in the ALS. 

T

ABLE

1—A

IRPLANES

S

UBJECT TO

§ 26.21 

Airplane model 

Compliance date— 

months after Janu-

ary 14, 2011 

Default LOV 

[flight cycles (FC) 

or flight hours (FH)] 

Airbus—Existing

1

Models Only: 

A300 B2–1A, B2–1C, B2K–3C, B2–203 ....................................................

30 ..........................

48,000 FC 

A300 B4–2C, B4–103 ................................................................................

30 ..........................

40,000 FC 

A300 B4–203 .............................................................................................

30 ..........................

34,000 FC 

A300–600 Series ........................................................................................

60 ..........................

30,000 FC/67,500 FH 

A310–200 Series ........................................................................................

60 ..........................

40,000 FC/60,000 FH 

A310–300 Series ........................................................................................

60 ..........................

35,000 FC/60,000 FH 

A318 Series ................................................................................................

60 ..........................

48,000 FC/60,000 FH 

A319 Series ................................................................................................

60 ..........................

48,000 FC/60,000 FH 

A320–100 Series ........................................................................................

60 ..........................

48,000 FC/48,000 FH 

A320–200 Series ........................................................................................

60 ..........................

48,000 FC/60,000 FH 

A321 Series ................................................................................................

60 ..........................

48,000 FC/60,000 FH 

A330–200, –300 Series (except WV050 family) (non enhanced) .............

60 ..........................

40,000 FC/60,000 FH 

A330–200, –300 Series WV050 family (enhanced) ..................................

60 ..........................

33,000 FC/100,000 FH 

A330–200 Freighter Series ........................................................................

60 ..........................

See NOTE. 

A340–200, –300 Series (except WV 027 and WV050 family) (non en-

hanced).

60 ..........................

20,000 FC/80,000 FH 

A340–200, –300 Series WV 027 (non enhanced) .....................................

60 ..........................

30,000 FC/60,000 FH 

A340–300 Series WV050 family (enhanced) .............................................

60 ..........................

20,000 FC/100,000 FH 

A340–500, –600 Series .............................................................................

60 ..........................

16,600 FC/100,000 FH 

A380–800 Series ........................................................................................

72 ..........................

See NOTE. 

Boeing—Existing

1

Models Only: 

717 .............................................................................................................

60 ..........................

60,000 FC/60,000 FH 

727 (all series) ...........................................................................................

30 ..........................

60,000 FC 

737 (Classics): 737–100, –200, –200C, –300, –400, –500 .......................

30 ..........................

75,000 FC 

737 (NG): 737–600, –700, –700C, –800, –900, –900ER ..........................

60 ..........................

75,000 FC 

747 (Classics): 747–100, –100B, –100B SUD, –200B, –200C, –200F, 

–300, 747SP, 747SR.

30 ..........................

20,000 FC 

747–400: 747–400, –400D, –400F ............................................................

60 ..........................

20,000 FC 

757 .............................................................................................................

60 ..........................

50,000 FC 

767 .............................................................................................................

60 ..........................

50,000 FC 

777–200, –300 ...........................................................................................

60 ..........................

40,000 FC 

777–200LR, 777–300ER ............................................................................

72 ..........................

40,000 FC 

777F ...........................................................................................................

72 ..........................

11,000 FC 

Bombardier—Existing

1

Models Only: 

CL–600: 2D15 (Regional Jet Series 705), 2D24 (Regional Jet Series 

900).

72 ..........................

60,000 FC 

Embraer—Existing

1

Models Only: 

ERJ 170 .....................................................................................................

72 ..........................

See NOTE. 

ERJ 190 .....................................................................................................

72 ..........................

See NOTE. 

Fokker—Existing

1

Models Only: 

F.28 Mark 0070, Mark 0100 ......................................................................

30 ..........................

90,000 FC 

Lockheed—Existing

1

Models Only: 

L–1011 .......................................................................................................

30 ..........................

36,000 FC 

188 .............................................................................................................

30 ..........................

26,600 FC 

382 (all series) ...........................................................................................

30 ..........................

20,000 FC/50,000 FH 

McDonnell Douglas—Existing

1

Models Only: 

DC–8, –8F ..................................................................................................

30 ..........................

50,000 FC/50,000 FH 

DC–9 (except for MD–80 models) .............................................................

30 ..........................

100,000 FC/100,000 

FH 

MD–80 (DC–9–81, –82, –83, –87, MD–88) ...............................................

30 ..........................

50,000 FC/50,000 FH 

MD–90 ........................................................................................................

60 ..........................

60,000 FC/90,000 FH 

DC–10–10, –15 ..........................................................................................

30 ..........................

42,000 FC/60,000 FH 

DC–10–30, –40, –10F, –30F, –40F ...........................................................

30 ..........................

30,000 FC/60,000 FH 

MD–10–10F ................................................................................................

60 ..........................

42,000 FC/60,000 FH 

MD–10–30F ................................................................................................

60 ..........................

30,000 FC/60,000 FH 

MD–11, MD–11F ........................................................................................

60 ..........................

20,000 FC/60,000 FH 

Maximum Takeoff Gross Weight Changes: 

background image

266 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.1117 

T

ABLE

1—A

IRPLANES

S

UBJECT TO

§ 26.21—Continued 

Airplane model 

Compliance date— 

months after Janu-

ary 14, 2011 

Default LOV 

[flight cycles (FC) 

or flight hours (FH)] 

All airplanes whose maximum takeoff gross weight has been decreased 

to 75,000 pounds or below after January 14, 2011, or increased to 
greater than 75,000 pounds at any time by an amended type certifi-
cate or supplemental type certificate.

30, or within 12 

months after the 
LOV is ap-
proved, or be-
fore operating 
the airplane, 
whichever oc-
curs latest.

Not applicable. 

All Other Airplane Models (TCs and amended TCs) not Listed in Table 2 .............

72, or within 12 

months after the 
LOV is ap-
proved, or be-
fore operating 
the airplane, 
whichever oc-
curs latest.

Not applicable. 

1

Type certificated as of January 14, 2011. 

Note: Airplane operation limitation is stated in the Airworthiness Limitation section. 

T

ABLE

2—A

IRPLANES

E

XCLUDED

F

ROM

§ 26.21 

Airplane model 

Default LOV 

[flight cycles (FC) 

or flight hours 

(FH)] 

Airbus: 

Caravelle ...................................

15,000 FC/24,000 

FH 

Avions Marcel Dassault: 

Breguet Aviation Mercure 100C 

20,000 FC/16,000 

FH 

Boeing: 

Boeing 707 (–100 Series and 

–200 Series) ..........................

20,000 FC 

Boeing 707 (–300 Series and 

–400 Series) ..........................

20,000 FC 

Boeing 720 ................................

30,000 FC 

Bombardier: 

CL–44D4 and CL–44J ..............

20,000 FC 

BD–700 .....................................

15,000 FC 

Bristol Aeroplane Company: 

Britannia 305 .............................

10,000 FC 

British Aerospace Airbus, Ltd.: 

BAC 1–11 (all models) ..............

85,000 FC 

British Aerospace (Commercial Aircraft) 

Ltd.: 

Armstrong Whitworth Argosy 

A.W. 650 Series 101 .............

20,000 FC 

BAE Systems (Operations) Ltd.: 

BAe 146–100A (all models) ......

50,000 FC 

BAe 146–200–07 ......................

50,000 FC 

BAe 146–200–07 Dev ...............

50,000 FC 

BAe 146–200–11 ......................

50,000 FC 

BAe 146–200–07A ....................

47,000 FC 

BAe 146–200–11 Dev ...............

43,000 FC 

BAe 146–300 (all models) ........

40,000 FC 

Avro 146–RJ70A (all models) ...

40,000 FC 

Avro 146–RJ85A and 146– 

RJ100A (all models) ..............

50,000 FC 

D & R Nevada, LLC: 

Convair Model 22 ......................

1,000 FC/1,000 

FH 

Convair Model 23M ...................

1,000 FC/1,000 

FH 

deHavilland Aircraft Company, Ltd.: 

D.H. 106 Comet 4C ..................

8,000 FH 

Gulfstream: 

GV .............................................

40,000 FH 

GV–SP ......................................

40,000 FH 

T

ABLE

2—A

IRPLANES

E

XCLUDED

F

ROM

 

§ 26.21—Continued 

Airplane model 

Default LOV 

[flight cycles (FC) 

or flight hours 

(FH)] 

Ilyushin Aviation Complex: 

IL–96T .......................................

10,000 FC/30,000 

FH 

Lockhead: 

300–50A01(USAF C 141A) .......

20,000 FC 

[Doc. No. FAA–2006–24281, 75 FR 69785, Nov. 
15, 2010, as amended by Amdt. 121–360, 77 FR 
30878, May 24, 2012; Admt. 121–360A, 77 FR 
55105, Sept. 7, 2012; Doc. No. FAA–2022–1355; 
Amdt. 121–387, 87 FR 75847, Dec. 9, 2022] 

§ 121.1117 Flammability reduction 

means. 

(a) 

Applicability. 

Except as provided 

in paragraph (o) of this section, this 
section applies to transport category, 
turbine-powered airplanes with a type 
certificate issued after January 1, 1958, 
that, as a result of original type cer-
tification or later increase in capacity 
have: 

(1) A maximum type-certificated pas-

senger capacity of 30 or more, or 

(2) A maximum payload capacity of 

7,500 pounds or more. 

(b) 

New Production Airplanes. 

Except 

in accordance with § 121.628, no certifi-
cate holder may operate an airplane 
identified in Table 1 of this section (in-
cluding all-cargo airplanes) for which 
the State of Manufacture issued the 
original certificate of airworthiness or 

background image

267 

Federal Aviation Administration, DOT 

§ 121.1117 

export airworthiness approval after De-
cember 27, 2010 unless an Ignition Miti-
gation Means (IMM) or Flammability 
Reduction Means (FRM) meeting the 
requirements of § 26.33 of this chapter is 
operational. 

T

ABLE

Model—Boeing 

Model—Airbus 

747 Series 

A318, A319, A320, A321 Series 

737 Series 

A330, A340 Series 

777 Series 
767 Series 

(c) 

Auxiliary Fuel Tanks. 

After the ap-

plicable date stated in paragraph (e) of 
this section, no certificate holder may 
operate any airplane subject to § 26.33 
of this chapter that has an Auxiliary 
Fuel Tank installed pursuant to a field 
approval, unless the following require-
ments are met: 

(1) The certificate holder complies 

with 14 CFR 26.35 by the applicable 
date stated in that section. 

(2) The certificate holder installs 

Flammability Impact Mitigation 
Means (FIMM), if applicable, that is 
approved by the responsible Aircraft 
Certification Service office. 

(3) Except in accordance with 

§ 121.628, the FIMM, if applicable, is 
operational. 

(d) 

Retrofit. 

Except as provided in 

paragraphs (j), (k), and (l) of this sec-
tion, after the dates specified in para-
graph (e) of this section, no certificate 
holder may operate an airplane to 
which this section applies unless the 
requirements of paragraphs (d)(1) and 
(d)(2) of this section are met. 

(1) IMM, FRM or FIMM, if required 

by §§ 26.33, 26.35, or 26.37 of this chapter, 
that are approved by the responsible 
Aircraft Certification Service office, 
are installed within the compliance 
times specified in paragraph (e) of this 
section. 

(2) Except in accordance with 

§ 121.628, the IMM, FRM or FIMM, as 
applicable, are operational. 

(e) 

Compliance Times. 

Except as pro-

vided in paragraphs (k) and (l) of this 
section, the installations required by 
paragraph (d) of this section must be 
accomplished no later than the appli-
cable dates specified in paragraph 
(e)(1), (e)(2), or (e)(3) of this section. 

(1) Fifty percent of each certificate 

holder’s fleet identified in paragraph 
(d)(1) of this section must be modified 
no later than December 26, 2014. 

(2) One hundred percent of each cer-

tificate holder’s fleet identified in 
paragraph (d)(1) of this section must be 
modified no later than December 26, 
2017. 

(3) For those certificate holders that 

have only one airplane of a model iden-
tified in Table 1 of this section, the air-
plane must be modified no later than 
December 26, 2017. 

(f) 

Compliance After Installation. 

Ex-

cept in accordance with § 121.628, no 
certificate holder may— 

(1) Operate an airplane on which IMM 

or FRM has been installed before the 
dates specified in paragraph (e) of this 
section unless the IMM or FRM is oper-
ational, or 

(2) Deactivate or remove an IMM or 

FRM once installed unless it is re-
placed by a means that complies with 
paragraph (d) of this section. 

(g) 

Maintenance Program Revisions. 

No 

certificate holder may operate an air-
plane for which airworthiness limita-
tions have been approved by the re-
sponsible Aircraft Certification Service 
office in accordance with §§ 26.33, 26.35, 
or 26.37 of this chapter after the air-
plane is modified in accordance with 
paragraph (d) of this section unless the 
maintenance program for that airplane 
is revised to include those applicable 
airworthiness limitations. 

(h) After the maintenance program is 

revised as required by paragraph (g) of 
this section, before returning an air-
plane to service after any alteration 
for which airworthiness limitations are 
required by §§ 25.981, 26.33, or 26.37 of 
this chapter, the certificate holder 
must revise the maintenance program 
for the airplane to include those air-
worthiness limitations. 

(i) The maintenance program 

changes identified in paragraphs (g) 
and (h) of this section must be sub-
mitted to the operator’s Principal 
Maintenance Inspector responsible for 
review and approval prior to incorpora-
tion. 

(j) The requirements of paragraph (d) 

of this section do not apply to air-
planes operated in all-cargo service, 

background image

268 

14 CFR Ch. I (1–1–24 Edition) 

§ 121.1119 

but those airplanes are subject to para-
graph (f) of this section. 

(k) The compliance dates specified in 

paragraph (e) of this section may be ex-
tended by one year, provided that— 

(1) No later than March 26, 2009, the 

certificate holder notifies its respon-
sible Flight Standards office or Prin-
cipal Inspector that it intends to com-
ply with this paragraph; 

(2) No later than June 24, 2009, the 

certificate holder applies for an amend-
ment to its operations specification in 
accordance with § 119.51 of this chapter 
and revises the manual required by 
§ 121.133 to include a requirement for 
the airplane models specified in Table 2 
of this section to use ground air condi-
tioning systems for actual gate times 
of more than 30 minutes, when avail-
able at the gate and operational, when-
ever the ambient temperature exceeds 
60 degrees Fahrenheit; and 

(3) Thereafter, the certificate holder 

uses ground air conditioning systems 
as described in paragraph (k)(2) of this 
section on each airplane subject to the 
extension. 

T

ABLE

Model—Boeing 

Model—Airbus 

747 Series 

A318, A319, A320, A321 Series 

737 Series 

A300, A310 Series 

777 Series 

A330, A340 Series 

767 Series 
757 Series 

(l) For any certificate holder for 

which the operating certificate is 
issued after December 26, 2008, the com-
pliance date specified in paragraph (e) 
of this section may be extended by one 
year, provided that the certificate 
holder meets the requirements of para-
graph (k)(2) of this section when its ini-
tial operations specifications are 
issued and, thereafter, uses ground air 
conditioning systems as described in 
paragraph (k)(2) of this section on each 
airplane subject to the extension. 

(m) After the date by which any per-

son is required by this section to mod-
ify 100 percent of the affected fleet, no 
certificate holder may operate in pas-
senger service any airplane model spec-
ified in Table 2 of this section unless 
the airplane has been modified to com-
ply with § 26.33(c) of this chapter. 

(n) No certificate holder may operate 

any airplane on which an auxiliary fuel 
tank is installed after December 26, 
2017 unless the FAA has certified the 
tank as compliant with § 25.981 of this 
chapter, in effect on December 26, 2008. 

(o) 

Exclusions. 

The requirements of 

this section do not apply to the fol-
lowing airplane models: 

(1) Convair CV–240, 340, 440, including 

turbine powered conversions. 

(2) Lockheed L–188 Electra. 
(3) Vickers VC–10. 
(4) Douglas DC–3, including turbine 

powered conversions. 

(5) Bombardier CL–44. 
(6) Mitsubishi YS–11. 
(7) BAC 1–11. 
(8) Concorde. 
(9) deHavilland D.H. 106 Comet 4C. 
(10) VFW—Vereinigte Flugtechnische 

VFW–614. 

(11) Illyushin Aviation IL 96T. 
(12) Bristol Aircraft Britannia 305. 
(13) Handley Page Herald Type 300. 
(14) Avions Marcel Dassault—Breguet 

Aviation Mercure 100C. 

(15) Airbus Caravelle. 
(16) Fokker F–27/Fairchild Hiller FH– 

227. 

(17) Lockheed L–300. 

[Doc. No. FAA–2005–22997, 73 FR 42501, July 
21, 2008, as amended by Amdt. 121–345, 74 FR 
31619, July 2, 2009; Docket FAA–2018–0119, 
Amdt. 121–380, 83 FR 9173, Mar. 5, 2018] 

§ 121.1119 Fuel tank vent explosion 

protection. 

(a) 

Applicability. 

This section applies 

to transport category, turbine-powered 
airplanes with a type certificate issued 
after January 1, 1958, that have: 

(1) A maximum type-certificated pas-

senger capacity of 30 or more; or 

(2) A maximum payload capacity of 

7,500 pounds or more. 

(b) 

New production airplanes. 

No cer-

tificate holder may operate an airplane 
for which the State of Manufacture 
issued the original certificate of air-
worthiness or export airworthiness ap-
proval after August 23, 2018 unless 
means, approved by the Administrator, 
to prevent fuel tank explosions caused 
by propagation of flames from outside 
the fuel tank vents into the fuel tank 

background image

269 

Federal Aviation Administration, DOT 

Pt. 121, App. A 

vapor spaces are installed and oper-
ational. 

[Docket FAA–2014–0500, Amdt. 121–375, 81 FR 
41208, June 24, 2016] 

Subpart BB 

[

Reserved

§§ 121.1200–121.1399 [Reserved] 

Subpart CC 

[

Reserved

§§ 121.1400–121.1499 [Reserved] 

Subpart DD—Special Federal 

Aviation Regulations 

§ 121.1500 SFAR No. 111—Lavatory Ox-

ygen Systems. 

(a) 

Applicability. 

This SFAR applies 

to the following persons: 

(1) All operators of transport cat-

egory airplanes that are required to 
comply with AD 2012–11–09, but only for 
airplanes on which the actions required 
by that AD have not been accom-
plished. 

(2) Applicants for airworthiness cer-

tificates. 

(3) Holders of production certificates. 
(4) Applicants for type certificates, 

including changes to type certificates. 

(b) 

Regulatory relief. 

Except as noted 

in paragraph (d) of this section and 
contrary provisions of 14 CFR part 21, 
and 14 CFR 25.1447, 119.51, 121.329, 
121.333 and 129.13, notwithstanding, for 
the duration of this SFAR: 

(1) A person described in paragraph 

(a) of this section may conduct flight 
operations and add airplanes to oper-
ations specifications with disabled lav-
atory oxygen systems, modified in ac-
cordance with FAA Airworthiness Di-
rective 2011–04–09, subject to the fol-
lowing limitations: 

(i) This relief is limited to regulatory 

compliance of lavatory oxygen sys-
tems. 

(ii) Within 30 days of March 29, 2013, 

all oxygen masks must be removed 
from affected lavatories, and the mask 
stowage location must be reclosed. 

(iii) Within 60 days of March 29, 2013 

each affected operator must verify that 
crew emergency procedures specifically 
include a visual check of the lavatory 
as a priority when checking the cabin 
following any event where oxygen 
masks were deployed in the cabin. 

(2) An applicant for an airworthiness 

certificate may obtain an airworthi-
ness certificate for airplanes to be op-
erated by a person described in para-
graph (a) of this section, although the 
airplane lavatory oxygen system is dis-
abled. 

(3) A holder of a production certifi-

cate may apply for an airworthiness 
certificate or approval for airplanes to 
be operated by a person described in 
paragraph (a) of this section. 

(4) An applicant for a type certificate 

or change to a type certificate may ob-
tain a design approval without showing 
compliance with § 25.1447(c)(1) of this 
chapter for lavatory oxygen systems, 
in accordance with this SFAR. 

(5) Each person covered by paragraph 

(a) of this section may inform pas-
sengers that the lavatories are not 
equipped with supplemental oxygen. 

(c) 

Return to service documentation. 

When a person described in paragraph 
(a) of this section has modified air-
planes as required by Airworthiness Di-
rective 2011–04–09, the affected air-
planes must be returned to service with 
a note in the airplane maintenance 
records that the modification was done 
under the provisions of this SFAR. 

(d) 

Expiration. 

This SFAR expires on 

September 10, 2015, except this SFAR 
will continue to apply to any airplane 
for which the FAA approves an exten-
sion of the AD compliance time for the 
duration of the extension. 

[Doc. No. FAA–2011–0186, 78 FR 5710, Jan. 28, 
2013] 

A

PPENDIX

TO

P

ART

121—F

IRST

A

ID

 

K

ITS AND

E

MERGENCY

M

EDICAL

K

ITS

 

Approved first-aid kits, at least one ap-

proved emergency medical kit, and at least 
one approved automated external 
defibrillator required under § 121.803 of this 
part must be readily accessible to the crew, 
stored securely, and kept free from dust, 
moisture, and damaging temperatures. 

F

IRST

-

AID

K

ITS

 

1. The minimum number of first aid kits 

required is set forth in the following table: 

No. of passenger seats 

No. of 

first-aid 

kits 

0–50 .......................................................................

background image

270 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. A 

No. of passenger seats 

No. of 

first-aid 

kits 

51–150 ...................................................................

151–250 .................................................................

More than 250 .......................................................

2. Except as provided in paragraph (3), each 

approved first-aid kit must contain at least 
the following appropriately maintained con-
tents in the specified quantities: 

Contents 

Quantity 

Adhesive bandage compresses, 1-inch ................

16 

Antiseptic swabs ....................................................

20 

Ammonia inhalants ................................................

10 

Bandage compresses, 4-inch ................................

Triangular bandage compresses, 40-inch .............

Arm splint, noninflatable ........................................

Leg splint, noninflatable .........................................

Roller bandage, 4-inch ..........................................

Adhesive tape, 1-inch standard roll .......................

Bandage scissors ..................................................

3. Arm and leg splints which do not fit 

within a first-aid kit may be stowed in a 
readily accessible location that is as near as 
practicable to the kit. 

E

MERGENCY

M

EDICAL

K

ITS

 

1. Until April 12, 2004, at least one approved 

emergency medical kit that must contain at 
least the following appropriately maintained 
contents in the specified quantities: 

Contents 

Quantity 

Sphygmomanometer ...........................................

Stethoscope .........................................................

Airways, cropharyngeal (3 sizes) ........................

Syringes (sizes necessary to administer re-

quired drugs).

Needles (sizes necessary to administer required 

drugs).

50% Dextrose injection, 50cc ..............................

Epinephrine 1:1000, single dose ampule or 

equivalent).

Diphenhydramine HC1 injection, single dose 

ampule or equivalent.

Nitroglycerin tablets .............................................

10 

Basic instructions for use of the drugs in the kit

protective nonpermeable gloves or equivalent ...

1 pair 

2. As of April 12, 2004, at least one approved 

emergency medical kit that must contain at 
least the following appropriately maintained 
contents in the specified quantities: 

Contents 

Quantity 

Sphygmonanometer ............................................

Stethoscope .........................................................

Airways, oropharyngeal (3 sizes): 1 pediatric, 1 

small adult, 1 large adult or equivalent.

Self-inflating manual resuscitation device with 3 

masks (1 pediatric, 1 small adult, 1 large adult 
or equivalent).

1:3 masks 

Contents 

Quantity 

CPR mask (3 sizes), 1 pediatric, 1 small adult, 1 

large adult, or equivalent.

IV Admin Set: Tubing w/ 2 Y connectors ............

Alcohol sponges ....................................

Adhesive tape, 1-inch standard roll ad-

hesive.

Tape scissors ........................................

1 pair 

Tourniquet .............................................

Saline solution, 500 cc ........................................

Protective nonpermeable gloves or equivalent ...

1 pair 

Needles (2–18 ga., 2–20 ga., 2–22 ga., or sizes 

necessary to administer required medications).

Syringes (1–5 cc, 2–10 cc, or sizes necessary 

to administer required medications).

Analgesic, non-narcotic, tablets, 325 mg ............

Antihistamine tablets, 25 mg ...............................

Antihistamine injectable, 50 mg, (single dose 

ampule or equivalent).

Atropine, 0.5 mg, 5 cc (single dose ampule or 

equivalent).

Aspirin tablets, 325 mg ........................................

Bronchodilator, inhaled (metered dose inhaler or 

equivalent).

Dextrose, 50%/50 cc injectable, (single dose 

ampule or equivalent).

Epinephrine 1:1000, 1 cc, injectable, (single 

dose ampule or equivalent).

Epinephrine 1:10,000, 2 cc, injectable, (single 

dose ampule or equivalent).

Lidocaine, 5 cc, 20 mg/ml, injectable (single 

dose ampule or equivalent).

Nitroglycerin tablets, 0.4 mg ................................

10 

Basic instructions for use of the drugs in the kit

3. If all of the above-listed items do not fit 

into one container, more than one container 
may be used. 

A

UTOMATED

E

XTERNAL

D

EFIBRILLATORS

 

At least one approved automated external 

defibrillator, legally marketed in the United 
States in accordance with Food and Drug 
Administration requirements, that must: 

1. Be stored in the passenger cabin. 
2. After April 30, 2005: 
(a) Have a power source that meets FAA 

Technical Standard Order requirements for 
power sources for electronic devices used in 
aviation as approved by the Administrator; 
or 

(b) Have a power source that was manufac-

tured before July 30, 2004, and been found by 
the FAA to be equivalent to a power source 
that meets the Technical Standard Order re-
quirements of paragraph (a) of this section. 

3. Be maintained in accordance with the 

manufacturer’s specifications. 

[Doc. No. FAA–2000–7119, 66 FR 19044, Apr. 12, 
2001, as amended by Amdt. 121–280, 69 FR 
19762, Apr. 14, 2004; Amdt. 121–309, 70 FR 15196, 
Mar. 24, 2005] 

background image

271 

Federal Aviation Administration, DOT 

Pt. 121, App. B 

A

PPENDIX

TO

P

ART

121—A

IRPLANE

F

LIGHT

R

ECORDER

S

PECIFICATION

 

Parameters 

Range 

Accuracy sensor input to 

DFDR readout 

Sampling inter-

val (per second) 

Resolution

4

 

readout 

Time (GMT or Frame 

Counter) (range 0 to 4095, 
sampled 1 per frame).

24 Hrs .............................

±

0.125% Per Hour ................

0.25 (1 per 4 

seconds).

1 sec. 

Altitude ....................................

¥

1,000 ft to max certifi-
cated altitude of air-
craft.

±

100 to 

±

700 ft (See Table 1, 

TSO-C51a).

1 ........................

5

′ 

to 35

1

 

Airspeed .................................

50 KIAS to V

so

, and V

so

 

to 1.2V

D

.

±

5%, 

±

3% ..............................

1 ........................

1 kt. 

Heading ..................................

360

°

................................

±

2

°

.........................................

1 ........................

0.5

° 

Normal Acceleration (Vertical) 

¥

3g to + 6g ...................

±

1% of max range excluding 

datum error of 

±

5%.

8 ........................

0.01g. 

Pitch Attitude ..........................

±

75

°

................................

±

2

°

.........................................

1 ........................

0.5

° 

Roll Attitude ............................

±

180

°

..............................

±

2

°

.........................................

1 ........................

0.5

° 

Radio Transmitter Keying .......

On-Off (Discrete) ............

±

2

°

.........................................

±

2% ..................

Thrust/Power on Each Engine 

Full Range Forward ........

±

2

°

.........................................

1 (per engine) ...

0.2%

2

 

Trailing Edge Flap or Cockpit 

Control Selection.

Full Range or Each Dis-

crete Position.

±

3

° 

or as Pilot’s Indicator ......

0.5 .....................

0.5%

2

 

Leading Edge Flap or Cockpit 

Control Selection.

Full Range or Each Dis-

crete Position.

±

3

° 

or as Pilot’s Indicator ......

0.5 .....................

0.5%

2

 

Thrust Reverser Position ........

Stowed, In Transit, and 

Reverse (Discrete).

................................................

1 (per 4 sec-

onds per en-
gine).

Ground Spoiler Position/ 

Speed Brake Selection.

Full Range or Each Dis-

crete Position.

±

2% Unless Higher Accuracy 

Uniquely Required.

1 ........................

0.2%

2

Marker Beacon Passage ........

Discrete ..........................

................................................

1 ........................

Autopilot Engagement ............

Discrete ..........................

................................................

1 ........................

Longitudinal Acceleration .......

±

1g ..................................

±

1.5% max range excluding 

datum error of 

±

5%.

4 ........................

0.01g. 

Pilot Input and/or Surface Po-

sition—Primary Controls 
(Pitch, Roll, Yaw)

3

.

Full Range ......................

±

2

° 

Unless Higher Accuracy 

Uniquely Required.

1 ........................

0.2%

2

Lateral Acceleration ................

±

1g ..................................

±

1.5% max range excluding 

datum error of 

±

5%.

4 ........................

0.01g. 

Pitch Trim Position .................

Full Range ......................

±

3% Unless Higher Accuracy 

Uniquely Required.

1 ........................

0.3%

2

Glideslope Deviation ..............

±

400 Microamps .............

±

3% .......................................

1 ........................

0.3%

2

Localizer Deviation .................

±

400 Microamps .............

±

3% .......................................

1 ........................

0.3%

2

AFCS Mode and Engagement 

Status.

Discrete ..........................

................................................

1 ........................

Radio Altitude .........................

¥

20 ft to 2,500 ft ...........

±

2 Ft or 

±

3% Whichever is 

Greater Below 500 Ft and 

±

5% Above 500 Ft.

1 ........................

1 ft + 5%

2

 

above 500

Master Warning ......................

Discrete ..........................

................................................

1 ........................

Main Gear Squat Switch Sta-

tus.

Discrete ..........................

................................................

1 ........................

Angle of Attack (if recorded di-

rectly)..

As installed .....................

As installed ............................

2 ........................

0.3%

2

 

Outside Air Temperature or 

Total Air Temperature..

¥

50 

°

C to + 90 

°

C .........

±

°

c ......................................

0.5 .....................

0.3 

°

Hydraulics, Each System Low 

Pressure.

Discrete ..........................

................................................

0.5 .....................

or 0.5%

2

 

Groundspeed. .........................

As installed .....................

Most Accurate Systems In-

stalled (IMS Equipped Air-
craft Only).

1 ........................

0.2%

2

 

If additional recording capacity is available, recording of the following parameters is recommended. The parameters are listed in 

order of significance: 

Drift Angle ...............................

When available, As in-

stalled.

As installed ............................

4 ........................

Wind Speed and Direction .....

When available, As in-

stalled.

As installed ............................

4 ........................

Latitude and Longitude ...........

When available, As in-

stalled.

As installed ............................

4 ........................

Brake pressure/Brake pedal 

position.

As installed .....................

As installed ............................

1 ........................

Additional engine parameters: 

EPR .................................

As installed .....................

As installed ............................

1 (per engine). ..

N1 ....................................

As installed .....................

As installed ............................

1 (per engine). ..

N2 ....................................

As installed .....................

As installed ............................

1 (per engine). ..

EGT .................................

As installed .....................

As installed ............................

1 (per engine). ..

background image

272 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. C 

Parameters 

Range 

Accuracy sensor input to 

DFDR readout 

Sampling inter-

val (per second) 

Resolution

4

 

readout 

Throttle Lever Position ...........

As installed .....................

As installed ............................

1 (per engine). ..

Fuel Flow ................................

As installed .....................

As installed ............................

1 (per engine). ..

TCAS: 

TA ....................................

As installed .....................

As installed ............................

1 ........................

RA ...................................

As installed .....................

As installed ............................

1 ........................

Sensitivity level (as se-

lected by crew).

As installed .....................

As installed ............................

2 ........................

GPWS (ground proximity 

warning system).

Discrete ..........................

................................................

1 ........................

Landing gear or gear selector 

position.

Discrete ..........................

................................................

0.25 (1 per 4 

seconds).

DME 1 and 2 Distance ...........

0–200 NM; ......................

As installed ............................

0.25 ...................

1 mi. 

Nav 1 and 2 Frequency Se-

lection.

Full range .......................

As installed ............................

0.25 ...................

1

When altitude rate is recorded. Altitude rate must have sufficient resolution and sampling to permit the derivation of altitude to 

5 feet. 

2

Per cent of full range. 

3

For airplanes that can demonstrate the capability of deriving either the control input on control movement (one from the 

other) for all modes of operation and flight regimes, the ‘‘or’’ applies. For airplanes with non-mechanical control systems (fly-by- 
wire) the ‘‘and’’ applies. In airplanes with split surfaces, suitable combination of inputs is acceptable in lieu of recording each sur-
face separately. 

4

This column applies to aircraft manufactured after October 11, 1991. 

[Doc. No. 25530, 53 FR 26147, July 11, 1988; 53 FR 30906, Aug. 16, 1988] 

A

PPENDIX

TO

P

ART

121—C–46 

N

ONTRANSPORT

C

ATEGORY

A

IRPLANES

 

Cargo Operations 

1. 

Required engines. 

(a) Except as provided 

in paragraph (b) of this section, the engines 
specified in subparagraphs (1) or (2) of this 
section must be installed in C–46 non-
transport category airplanes operated at 
gross weights exceeding 45,000 pounds: 

(1) Pratt and Whitney R2800–51–M1 or 

R2800–75–M1 engines (engines converted from 
basic model R2800–51 or R2800–75 engines in 
accordance with FAA approved data) that— 

(i) Conform to Engine Specification 5E–8; 
(ii) Conform to the applicable portions of 

the operator’s manual; 

(iii) Comply with all the applicable air-

worthiness directives; and 

(iv) Are equipped with high capacity oil 

pump drive gears in accordance with FAA 
approved data. 

(2) Other engines found acceptable by the 

Flight Standards office having type certifi-
cation responsibility for the C–46 airplane. 

(b) Upon application by an operator con-

ducting cargo operations with nontransport 
category C–46 airplanes between points with-
in the State of Alaska, the responsible 
Flight Standards office may authorize the 
operation of such airplanes, between points 
within the State of Alaska; without compli-
ance with paragraph (a) of this section if the 
operator shows that, in its area of operation, 
installation of the modified engines is not 
necessary to provide adequate cooling for 
single-engine operations. Such authorization 
and any conditions or limitations therefor is 
made a part of the Operations Specifications 
of the operator. 

2. 

Minimum acceptable means of complying 

with the special airworthiness requirements. 

Unless otherwise authorized under § 121.213, 
the data set forth in sections 3 through 34 of 
this appendix, as correlated to the C–46 non-
transport category airplane, is the minimum 
means of compliance with the special air-
worthiness requirements of §§ 121.215 through 
121.281. 

3. 

Susceptibility of material to fire. 

[Deleted 

as unnecessary] 

4. 

Cabin interiors. 

C–46 crew compartments 

must meet all the requirements of § 121.215, 
and, as required in § 121.221, the door between 
the crew compartment and main cabin 
(cargo) compartment must be flame resist-
ant. 

5. 

Internal doors. 

Internal doors, including 

the crew to main cabin door, must meet all 
the requirements of § 121.217. 

6. 

Ventilation. 

Standard C–46 crew compart-

ments meet the ventilation requirements of 
§ 121.219 if a means of ventilation for control-
ling the flow of air is available between the 
crew compartment and main cabin. The ven-
tilation requirement may be met by use of a 
door between the crew compartment and 
main cabin. The door need not have louvers 
installed; however, if louvers are installed, 
they must be controllable. 

7. 

Fire precautions. 

Compliance is required 

with all the provisions of § 121.221. 

(a) In establishing compliance with this 

section, the C–46 main cabin is considered as 
a Class A compartment if— 

(1) The operator utilizes a standard system 

of cargo loading and tiedown that allows 
easy access in flight to all cargo in such 
compartment, and, such system is included 
in the appropriate portion of the operator’s 
manual; and 

background image

273 

Federal Aviation Administration, DOT 

Pt. 121, App. C 

(2) A cargo barrier is installed in the for-

ward end of the main cabin cargo compart-
ment. The barrier must— 

(i) Establish the most forward location be-

yond which cargo cannot be carried; 

(ii) Protect the components and systems of 

the airplane that are essential to its safe op-
eration from cargo damage; and 

(iii) Permit easy access, in flight, to cargo 

in the main cabin cargo compartment. 

The barrier may be a cargo net or a network 
of steel cables or other means acceptable to 
the Administrator which would provide 
equivalent protection to that of a cargo net. 
The barrier need not meet crash load re-
quirements of FAR § 25.561; however, it must 
be attached to the cargo retention fittings 
and provide the degree of cargo retention 
that is required by the operators’ standard 
system of cargo loading and tiedown. 

(b) C–46 forward and aft baggage compart-

ments must meet, as a minimum, Class B re-
quirements of this section or be placarded in 
a manner to preclude their use as cargo or 
baggage compartments. 

8. 

Proof of compliance. 

The demonstration 

of compliance required by § 121.223 is not re-
quired for C–46 airplanes in which— 

(1) The main cabin conforms to Class A 

cargo compartment requirements of § 121.219; 
and 

(2) Forward and aft baggage compartments 

conform to Class B requirements of § 121.221, 
or are placarded to preclude their use as 
cargo or baggage compartments. 

9. 

Propeller deicing fluid. 

No change from 

the requirements of § 121.225. Isopropyl alco-
hol is a combustible fluid within the mean-
ing of this section. 

10. 

Pressure cross-feed arrangements, location 

of fuel tanks, and fuel system lines and fittings. 

C–46 fuel systems which conform to all appli-
cable Curtiss design specifications and which 
comply with the FAA type certification re-
quirements are in compliance with the provi-
sions of §§ 121.227 through 121.231. 

11. 

Fuel lines and fittings in designated fire 

zones. 

No change from the requirements of 

§ 121.233. 

12. 

Fuel valves. 

Compliance is required with 

all the provisions of § 121.235. Compliance can 
be established by showing that the fuel sys-
tem conforms to all the applicable Curtiss 
design specifications, the FAA type certifi-
cation requirements, and, in addition, has 
explosion-proof fuel booster pump electrical 
selector switches installed in lieu of the open 
contact type used originally. 

13. 

Oil lines and fittings in designated fire 

zones. 

No change from the requirements of 

§ 121.237. 

14. 

Oil valves. 

C–46 oil shutoff valves must 

conform to the requirements of § 121.239. In 
addition, C–46 airplanes using Hamilton 
Standard propellers must provide, by use of 
stand pipes in the engine oil tanks or other 

approved means, a positive source of oil for 
feathering each propeller. 

15. 

Oil system drains. 

The standard C–46 ‘‘Y’’ 

drains installed in the main oil inlet line for 
each engine meet the requirements of 
§ 121.241. 

16. 

Engine breather line. 

The standard C–46 

engine breather line installation meets the 
requirements of § 121.243 if the lower breather 
lines actually extend to the trailing edge of 
the oil cooler air exit duct. 

17. 

Firewalls and firewall construction. 

Com-

pliance is required with all of the provisions 
of §§ 121.245 and 121.247. The following re-
quirements must be met in showing compli-
ance with these sections: 

(a) 

Engine compartment. 

The engine fire-

walls of the C–46 airplane must— 

(1) Conform to type design, and all applica-

ble airworthiness directives; 

(2) Be constructed of stainless steel or ap-

proved equivalent; and 

(3) Have fireproof shields over the fairleads 

used for the engine control cables that pass 
through each firewall. 

(b) 

Combustion heater compartment. 

C–46 air-

planes must have a combustion heater fire 
extinguishing system which complies with 
AD–49–18–1 or an FAA approved equivalent. 

18. 

Cowling. 

Standard C–46 engine cowling 

(cowling of aluminum construction employ-
ing stainless steel exhaust shrouds) which 
conforms to the type design and cowling con-
figurations which conform to the C–46 trans-
port category requirements meet the re-
quirements of § 121.249. 

19. 

Engine accessory section diaphragm. 

C–46 

engine nacelles which conform to the C–46 
transport category requirements meet the 
requirements of § 121.251. As provided for in 
that section, a means of equivalent protec-
tion which does not require provision of a di-
aphragm to isolate the engine power section 
and exhaust system from the engine acces-
sory compartment is the designation of the 
entire engine compartment forward of and 
including the firewall as a designated fire 
zone, and the installation of adequate fire 
detection and fire extinguishing systems 
which meet the requirements of § 121.263 and 
§ 121.273, respectively, in such zone. 

20. 

Powerplant fire protection. 

C–46 engine 

compartments and combustion heater com-
partments are considered as designated fire 
zones within the meaning of § 121.253. 

21. 

Flammable fluids

— 

(a) 

Engine compartment. 

C–46 engine com-

partments which conform to the type design 
and which comply with all applicable air-
worthiness directives meet the requirements 
of § 121.255. 

(b) 

Combustion heater compartment. 

C–46 

combustion heater compartments which con-
form to type design and which meet all the 
requirements of AD–49–18–1 or an FAA ap-
proved equivalent meet the requirements of 
§ 121.255. 

background image

274 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. C 

22. 

Shutoff means

— 

(a) 

Engine compartment. 

C–46 engine com-

partments which comply with AD–62–10–2 or 
FAA approved equivalent meet the require-
ments of § 121.257 applicable to engine com-
partments, if, in addition, a means satisfac-
tory to the Administrator is provided to shut 
off the flow of hydraulic fluid to the cowl 
flap cylinder in each engine nacelle. The 
shutoff means must be located aft of the en-
gine firewall. The operator’s manual must 
include, in the emergency portion, adequate 
instructions for proper operation of the addi-
tional shutoff means to assure correct se-
quential positioning of engine cowl flaps 
under emergency conditions. In accordance 
with § 121.315, this positioning must also be 
incorporated in the emergency section of the 
pilot’s checklist. 

(b) 

Combustion heater compartment. 

C–46 

heater compartments which comply with 
paragraph (5) of AD–49–18–1 or FAA approved 
equivalent meet the requirements of § 121.257 
applicable to heater compartments if, in ad-
dition, a shutoff valve located above the 
main cabin floor level is installed in the al-
cohol supply line or lines between the alco-
hol supply tank and those alcohol pumps lo-
cated under the main cabin floor. If all of the 
alcohol pumps are located above the main 
cabin floor, the alcohol shutoff valve need 
not be installed. In complying with para-
graph (5) of AD–49–18–1, a fail-safe electric 
fuel shutoff valve may be used in lieu of the 
manually operated valve. 

23. 

Lines and fittings

—(a) 

Engine compart-

ment. 

C–46 engine compartments which com-

ply with all applicable airworthiness direc-
tives, including AD–62–10–2, by using FAA 
approved fire-resistant lines, hoses, and end 
fittings, and engine compartments which 
meet the C–46 transport category require-
ments, meet the requirements of § 121.259. 

(b) 

Combustion heater compartments 

All 

lines, hoses, and end fittings, and couplings 
which carry fuel to the heaters and heater 
controls, must be of FAA approved fire-re-
sistant construction. 

24. 

Vent and drain lines

—(a) 

Enginecompartment. 

C–46 engine compart-

ments meet the requirements of § 121.261 if— 

(1) The compartments conform to type de-

sign and comply with all applicable air-
worthiness directives or FAA approved 
equivalent; and 

(2) Drain lines from supercharger case, en-

gine-driven fuel pump, and engine-driven hy-
draulic pump reach into the scupper drain lo-
cated in the lower cowling segment. 

(b) 

Combustion heater compartment. 

C–46 

heater compartments meet the requirements 
of § 121.261 if they conform to AD–49–18–1 or 
FAA approved equivalent. 

25. 

Fire-extinguishing system. 

(a) To meet 

the requirements of § 121.263, C–46 airplanes 
must have installed fire extinguishing sys-
tems to serve all designated fire zones. The 

fire-extinguishing systems, the quantity of 
extinguishing agent, and the rate of dis-
charge shall be such as to provide a min-
imum of one adequate discharge for each 
designated fire zone. Compliance with this 
provision requires the installation of a sepa-
rate fire extinguisher for each engine com-
partment. Insofar as the engine compart-
ment is concerned, the system shall be capa-
ble of protecting the entire compartment 
against the various types of fires likely to 
occur in the compartment. 

(b) Fire-extinguishing systems which con-

form to the C–46 transport category require-
ments meet the requirements set forth in 
paragraph (a). Furthermore, fire-extin-
guishing systems for combustion heater 
compartments which conform to the require-
ments of AD–49–18–1 or an FAA approved 
equivalent also meet the requirements in 
paragraph (a). 

In addition, a fire-extinguishing system for 

C–46 airplanes meets the adequacy require-
ment of paragraph (a) if it provides the same 
or equivalent protection to that dem-
onstrated by the CAA in tests conducted in 
1941 and 1942, using a CW–20 type engine na-
celle (without diaphragm). These tests were 
conducted at the Bureau of Standards facili-
ties in Washington, DC, and copies of the 
test reports are available through the FAA 
Regional Engineering Offices. In this connec-
tion, the flow rates and distribution of extin-
guishing agent substantiated in American 
Airmotive Report No. 128–52–d, FAA ap-
proved February 9, 1953, provides protection 
equivalent to that demonstrated by the CAA 
in the CW–20 tests. In evaluating any C–46 
fire-extinguishing system with respect to the 
aforementioned CW–20 tests, the Administra-
tion would require data in a narrative form, 
utilizing drawings or photographs to show at 
least the following: 

Installation of containers; installation and 

routing of plumbing; type, number, and loca-
tion of outlets or nozzles; type, total volume, 
and distribution of extinguishing agent; 
length of time required for discharging; 
means for thermal relief, including type and 
location of discharge indicators; means of 
discharging, e.g., mechanical cutterheads, 
electric cartridge, or other method; and 
whether a one- or two-shot system is used; 
and if the latter is used, means of cross-feed-
ing or otherwise selecting distribution of ex-
tinguishing agent; and types of materials 
used in makeup of plumbing. 

High rate discharge (HRD) systems using 

agents such as bromotrifluoromethane, 
dibrodifluoromethane and 
chlorobromomethane (CB), may also meet 
the requirements of paragraph (a). 

26. 

Fire-extinguishing agents, Extinguishing 

agent container pressure relief, Extinguishing 
agent container compartment temperatures, and 
Fire-extinguishing system materials. 

No change 

background image

275 

Federal Aviation Administration, DOT 

Pt. 121, App. C 

from the requirements of §§ 121.265 through 
121.271. 

27. 

Fire-detector system. 

Compliance with 

the requirements of § 121.273 requires that C– 
46 fire detector systems conform to: 

(a) AD–62–10–2 or FAA approved equivalent 

for engine compartments; and 

(b) AD–49–18–1 or FAA approved equivalent 

for combustion heater compartments 

28. 

Fire detectors. 

No change from the re-

quirements of § 121.275. 

29. 

Protection of other airplane components 

against fire. 

To meet the requirements of 

§ 121.277, C–46 airplanes must— 

(a) Conform to the type design and all ap-

plicable airworthiness directives; and 

(b) Be modified or have operational proce-

dures established to provide additional fire 
protection for the wheel well door aft of each 
engine compartment. Modifications may 
consist of improvements in sealing of the 
main landing gear wheel well doors. An oper-
ational procedure which is acceptable to the 
Agency is one requiring the landing gear 
control to be placed in the up position in 
case of in-flight engine fire. In accordance 
with § 121.315, such procedure must be set 
forth in the emergency portion of the opera-
tor’s emergency checklist pertaining to in- 
flight engine fire. 

30. 

Control of engine rotation. 

C–46 propeller 

feathering systems which conform to the 
type design and all applicable airworthiness 
directives meet the requirements of § 121.279. 

31. 

Fuel system independence. 

C–46 fuel sys-

tems which conform to the type design and 
all applicable airworthiness directives meet 
the requirements of § 121.281. 

32. 

Induction system ice prevention. 

The C–46 

carburetor anti-icing system which conforms 
to the type design and all applicable air-
worthiness directives meets the require-
ments of § 121.283. 

33. 

Carriage of cargo in passenger compart-

ments. 

Section 121.285 is not applicable to 

nontransport category C–46 cargo airplanes. 

34. 

Carriage of cargo in cargo compartments. 

A standard cargo loading and tiedown ar-
rangement set forth in the operator’s man-
ual and found acceptable to the Adminis-
trator must be used in complying with 
§ 121.287. 

35. 

Performance data. 

Performance data on 

Curtiss model C–46 airplane certificated for 
maximum weight of 45,000 and 48,000 pounds 
for cargo-only operations. 

1. The following performance limitation 

data, applicable to the Curtiss model C–46 
airplane for cargo-only operation, must be 
used in determining compliance with 
§§ 121.199 through 121.205. These data are pre-
sented in the tables and figures of this ap-
pendix. 

T

ABLE

1—T

AKEOFF

L

IMITATIONS

 

(a) Curtiss C–46 certificated for maximum 

weight of 45,000 pounds. 

(1) 

Effective length 

of runway required when 

effective length is determined in accordance 
with § 121.171 (distance to accelerate to 93 
knots TIAS and stop, with zero wind and 
zero gradient). (Factor = 1.00) 

[Distance in feet] 

Standard altitude in feet 

Airplane weight in pounds 

39,000 

42,000 

45,000

1

 

S.L .......................................

4,110 

4,290 

4,570 

1,000 ....................................

4,250 

4,440 

4,720 

2,000 ....................................

4,400 

4,600 

4,880 

3,000 ....................................

4,650 

4,880 

5,190 

4,000 ....................................

4,910 

5,170 

5,500 

5,000 ....................................

5,160 

5,450 

5,810 

6,000 ....................................

5,420 

5,730 

6,120 

7,000 ....................................

5,680 

6,000 

6,440 

8,000 ....................................

5,940 

6,280 

(

1

1

Ref. Fig. 1(a)(1) for weight and distance for altitudes 

above 7,000

(2) Actual length of runway required when 

effective length, 

considering obstacles, is not 

determined (distance to accelerate to 93 
knots TIAS and stop, divided by the factor 
0.85). 

[Distance in feet] 

Standard altitude in feet 

Airplane weight in pounds 

39,000 

42,000 

45,000

1

 

S.L .......................................

4,830 

5,050 

5,370 

1,000 ....................................

5,000 

5,230 

5,550 

2,000 ....................................

5,170 

5,410 

5,740 

3,000 ....................................

5,470 

5,740 

6,100 

4,000 ....................................

5,770 

6,080 

6,470 

5,000 ....................................

6,070 

6,410 

6,830 

6,000 ....................................

6,380 

6,740 

7,200 

7,000 ....................................

6,680 

7,070 

7,570 

8,000 ....................................

6,990 

7,410 

(

1

1

Ref. Fig. 1(a)(2) for weight and distance for altitudes 

above 7,000

(b) Curtiss C–46 certificated for maximum 

weight 48,000 pounds. 

(1) 

Effective length 

of runway required when 

effective length is determined in accordance 
with § 121.171 (distance to accelerate to 93 
knots TIAS and stop, with zero wind and 
zero gradient). (Factor = 1.00) 

[Distance in feet] 

Standard altitude 

in feet 

Airplane weight in pounds 

39,000 

42,000 

45,000 

48,000

1

 

S.L .....................

4,110 

4,290 

4,570 

4,950 

1,000 ..................

4,250 

4,440 

4,720 

5,130 

2,000 ..................

4,400 

4,600 

4,880 

5,300 

3,000 ..................

4,650 

4,880 

5,190 

5,670 

4,000 ..................

4,910 

5,170 

5,500 

6,050 

5,000 ..................

5,160 

5,450 

5,810 

6,420 

6,000 ..................

5,420 

5,730 

6,120 

6,800 

7,000 ..................

5,680 

6,000 

6,440 

(

1

8,000 ..................

5,940 

6,280 

6,750 

(

1

1

Ref. Fig. 1(b)(1) for weight and distance for altitudes 

above 6,000

(2) Actual length of runway required when 

effective length, 

considering obstacles, is not 

determined (distance to accelerate to 93 

background image

276 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. C 

knots TIAS and stop, divided by the factor 
0.85). 

[Distance in feet] 

Standard altitude 

in feet 

Airplane weight in pounds 

39,000 

42,000 

45,000 

48,000

1

 

S.L .....................

4,830 

5,050 

5,370 

5,830 

1,000 ..................

5,000 

5,230 

5,550 

6,030 

2,000 ..................

5,170 

5,410 

5,740 

6,230 

3,000 ..................

5,470 

5,740 

6,100 

6,670 

4,000 ..................

5,770 

6,080 

6,470 

7,120 

5,000 ..................

6,070 

6,410 

6,830 

7,560 

6,000 ..................

6,380 

6,740 

7,200 

8,010 

7,000 ..................

6,680 

7,070 

7,570 

(

1

8,000 ..................

6,990 

7,410 

7,940 

(

1

1

Ref. Fig. 1(b)(2) for weight and distance for altitudes 

above 6,000

T

ABLE

2—E

N

R

OUTE

L

IMITATIONS

 

(a) Curtiss model C–46 certificated for max-

imum weight of 45,000 pounds (based on a 
climb speed of 113 knots (TIAS)). 

Weight (pounds) 

Terrain 

clearance 

(feet)

1

 

Blower set-

ting 

45,000 ............................................

6,450  Low. 

44,000 ............................................

7,000 

Do. 

43,000 ............................................

7,500 

Do. 

42,200 ............................................

8,000  High. 

41,000 ............................................

9,600 

Do. 

40,000 ............................................

11,000 

Do. 

39,000 ............................................

12,300 

Do. 

1

Highest altitude of terrain over which airplanes may be op-

erated in compliance with § 121.201. 

Ref. Fig. 2(a). 

(b) Curtiss model C–46 certificated for max-

imum weight of 48,000 pounds or with engine 
installation approved for 2,550 revolutions 
per minute (1,700 brake horsepower). Max-
imum continuous power in low blower (based 
on a climb speed of 113 knots (TIAS)). 

Weight (pounds) 

Terrain 

clearance 

(feet)

1

 

Blower set-

ting 

48,000 ............................................

5,850  Low. 

47,000 ............................................

6,300 

Do. 

46,000 ............................................

6,700 

Do. 

45,000 ............................................

7,200 

Do. 

44,500 ............................................

7,450 

Do. 

44,250 ............................................

8,000  High. 

44,000 ............................................

8,550 

Do. 

43,000 ............................................

10,800 

Do. 

42,000 ............................................

12,500 

Do. 

41,000 ............................................

13,000 

Do. 

1

Highest altitude of terrain over which airplanes may be op-

erated in compliance with § 121.201. 

Ref. Fig. 2(b). 

T

ABLE

3—L

ANDING

L

IMITATIONS

 

(a) Intended Destination. 

Effective length 

of runway required for in-

tended destination when effective length is 
determined in accordance with § 121.171 with 
zero wind and zero gradient. 

(1) Curtiss model C–46 certificated for max-

imum weight of 45,000 pounds.

(0.60 factor) 

Distance in feet 

Standard altitude in feet 

Airplane weight in pounds and approach speeds

1

in knots 

40,000 

V

50

 

42,000 

V

50

 

44,000 

V

50

 

45,000 

V

50

 

S.L .........................................................................................

4,320 

86 

4,500 

88 

4,700 

90 

4,800 

91 

1,000 .....................................................................................

4,440 

86 

4,620 

88 

4,830 

90 

4,930 

91 

2,000 .....................................................................................

4,550 

86 

4,750 

88 

4,960 

90 

5,050 

91 

3,000 .....................................................................................

4,670 

86 

4,880 

88 

5,090 

90 

5,190 

91 

4,000 .....................................................................................

4,800 

86 

5,000 

88 

5,220 

90 

5,320 

91 

5,000 .....................................................................................

4,920 

86 

5,140 

88 

5,360 

90 

5,460 

91 

6,000 .....................................................................................

5,040 

86 

5,270 

88 

5,550 

90 

5,600 

91 

7,000 .....................................................................................

5,170 

86 

5,410 

88 

5,650 

90 

5,750 

91 

8,000 .....................................................................................

5,310 

86 

5,550 

88 

5,800 

90 

5,900 

91 

1

Steady approach speed through 50–foot height TIAS denoted by symbol V

50

Ref. Fig. 3(a)(1). 

(2) Curtiss model C–46 certificated for maximum weight of 48,000 pounds.

1

(0.60 factor.) 

Distance in feet 

Standard altitude in feet 

Airplane weight in pounds and approach speeds

2

in knots 

42,000 

V

50

 

44,000 

V

50

 

46,000 

V

50

 

43,000 

V

50

 

S.L .........................................................................................

3,370 

80 

3,490 

82 

3,620 

84 

3,740 

86 

1,000 .....................................................................................

3,460 

80 

3,580 

82 

3,710 

84 

3,830 

86 

2,000 .....................................................................................

3,540 

80 

3,670 

82 

3,800 

84 

3,920 

86 

3,000 .....................................................................................

3,630 

80 

3,760 

82 

3,890 

84 

4,020 

86 

4,000 .....................................................................................

3,720 

80 

3,850 

82 

3,980 

84 

4,110 

86 

5,000 .....................................................................................

3,800 

80 

3,940 

82 

4,080 

84 

4,220 

86 

6,000 .....................................................................................

3,890 

80 

4,040 

82 

4,180 

84 

4,320 

86 

7,000 .....................................................................................

3,980 

80 

4,140 

82 

4,280 

84 

4,440 

86 

8,000 .....................................................................................

4,080 

80 

4,240 

82 

4,390 

84 

4,550 

86 

1

For use with Curtiss model C–46 airplanes when approved for this weight. 

2

Steady approach speed through 50 height knots TIAS denoted by symbol V

50

3. 

background image

277 

Federal Aviation Administration, DOT 

Pt. 121, App. C 

Ref. Fig. 3(a)(2). 

(b) Alternate Airports. 

Effective length 

of runway required when effective length is determined in accordance with 

§ 121.171 with zero wind and zero gradient. 

(1) Curtiss model C–46 certificated for maximum weight of 45,000 pounds.

(0.70 factor.) 

Distance in feet 

Standard altitude in feet 

Airplane weight in pounds and approach speeds

1

in knots 

40,000 

V

50

 

42,000 

V

50

 

44,000 

V

50

 

45,000 

V

50

 

S.L .........................................................................................

3,700 

86 

3,860 

88 

4,030 

90 

4,110 

91 

1,000 .....................................................................................

3,800 

86 

3,960 

88 

4,140 

90 

4,220 

91 

2,000 .....................................................................................

3,900 

86 

4,070 

88 

4,250 

90 

4,340 

91 

3,000 .....................................................................................

4,000 

86 

4,180 

88 

4,360 

90 

4,450 

91 

4,000 .....................................................................................

4,110 

86 

4,290 

88 

4,470 

90 

4,560 

91 

5,000 .....................................................................................

4,210 

86 

4,400 

88 

4,590 

90 

4,680 

91 

6,000 .....................................................................................

4,330 

86 

4,510 

88 

4,710 

90 

4,800 

91 

7,000 .....................................................................................

4,430 

86 

4,630 

88 

4,840 

90 

4,930 

91 

8,000 .....................................................................................

4,550 

86 

4,750 

88 

4,970 

90 

5,060 

91 

1

Steady approach speed through 50 foot-height-knots TIAS denoted by symbol V

50

Ref. Fig. 3(b)(1). 

(2) Curtiss model C–46 certificated for maximum weight of 48,000 pounds.

1

(0.70 factor.) 

Distance in feet 

Standard altitude in feet 

Airplane weight in pounds and approach speeds

2

in knots 

42,000 

V

50

 

44,000 

V

50

 

46,000 

V

50

 

48,000 

V

50

 

S.L .........................................................................................

2,890 

80 

3,000 

82 

3,110 

84 

3,220 

86 

1,000 .....................................................................................

2,960 

80 

3,070 

82 

3,180 

84 

3,280 

86 

2,000 .....................................................................................

3,040 

80 

3,150 

82 

3,260 

84 

3,360 

86 

3,000 .....................................................................................

3,110 

80 

3,220 

82 

3,340 

84 

3,440 

86 

4,000 .....................................................................................

3,180 

80 

3,300 

82 

3,410 

84 

3,520 

86 

5,000 .....................................................................................

3,260 

80 

3,380 

82 

3,500 

84 

3,610 

86 

6,000 .....................................................................................

3,330 

80 

3,460 

82 

3,580 

84 

3,700 

86 

7,000 .....................................................................................

3,420 

80 

3,540 

82 

3,670 

84 

3,800 

86 

8,000 .....................................................................................

3,500 

80 

3,630 

82 

3,760 

84 

3,900 

86 

1

For use with Curtiss model C–46 airplanes when approved for this weight. 

2

Steady approach speed through 50 foot-height-knots TIAS denoted by symbol V

50

Ref. Fig. 3(b)(2). 

(c) Actual length of runway required when effective length, considering obstacles, is not de-

termined in accordance with § 121.171. 

(1) Curtiss model C–46 certificated for maximum weight of 45,000 pounds.

(0.55 factor.) 

Distance in feet 

Standard altitude in feet 

Airplane weight in pounds and approach speeds

1

in knots 

40,000 

V

50

 

42,000 

V

50

 

44,000 

V

50

 

45,000 

V

50

 

S.L .........................................................................................

4,710 

86 

4,910 

88 

5,130 

90 

5,230 

91 

1,000 .....................................................................................

4,840 

86 

5,050 

88 

5,270 

90 

5,370 

91 

2,000 .....................................................................................

4,960 

86 

5,180 

88 

5,410 

90 

5,510 

91 

3,000 .....................................................................................

5,090 

86 

5,320 

88 

5,550 

90 

5,660 

91 

4,000 .....................................................................................

5,230 

86 

5,460 

88 

5,700 

90 

5,810 

91 

5,000 .....................................................................................

5,360 

86 

5,600 

88 

5,850 

90 

5,960 

91 

6,000 .....................................................................................

5,500 

86 

5,740 

88 

6,000 

90 

6,110 

91 

7,000 .....................................................................................

5,640 

86 

5,900 

88 

6,170 

90 

6,280 

91 

8,000 .....................................................................................

5,790 

86 

6,050 

88 

6,340 

90 

6,450 

91 

1

Steady approach speed through 50 foot-height-knots TIAS denoted by symbol V

50

Ref. Fig. 3(c)(1). 

(2) Curtiss C–46 certificated for maximum weight of 48,000 pounds.

1

(0.55 factor.) 

Distance in feet 

Standard altitude in feet 

Airplane weight in pounds and approach speeds

2

in knots 

42,000 

V

50

 

44,000 

V

50

 

46,000 

V

50

 

48,000 

V

50

 

S.L .........................................................................................

3,680 

80 

3,820 

82 

3,960 

84 

4,090 

86 

1,000 .....................................................................................

3,770 

80 

3,910 

82 

4,050 

84 

4,180 

86 

2,000 .....................................................................................

3,860 

80 

4,000 

82 

4,140 

84 

4,280 

86 

3,000 .....................................................................................

3,960 

80 

4,090 

82 

4,240 

84 

4,380 

86 

background image

278 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. C 

Distance in feet 

Standard altitude in feet 

Airplane weight in pounds and approach speeds

2

in knots 

42,000 

V

50

 

44,000 

V

50

 

46,000 

V

50

 

48,000 

V

50

 

4,000 .....................................................................................

4,050 

80 

4,190 

82 

4,340 

84 

4,490 

86 

5,000 .....................................................................................

4,150 

80 

4,290 

82 

4,450 

84 

4,600 

86 

6,000 .....................................................................................

4,240 

80 

4,400 

82 

4,560 

84 

4,710 

86 

7,000 .....................................................................................

4,350 

80 

4,510 

82 

4,670 

84 

4,840 

86 

8,000 .....................................................................................

4,450 

80 

4,620 

82 

4,790 

84 

4,960 

86 

1

For use with Curtiss model C–46 airplanes when approved for this weight. 

2

Steady approach speed through 50 foot-height-knots TIAS denoted by symbol V

50

Ref. Fig. 3(c)(2). 

background image

279 

Federal Aviation Administration, DOT 

Pt. 121, App. C 

background image

280 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. C 

background image

281 

Federal Aviation Administration, DOT 

Pt. 121, App. C 

background image

282 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. C 

background image

283 

Federal Aviation Administration, DOT 

Pt. 121, App. C 

background image

284 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. C 

background image

285 

Federal Aviation Administration, DOT 

Pt. 121, App. C 

background image

286 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. C 

background image

287 

Federal Aviation Administration, DOT 

Pt. 121, App. C 

background image

288 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. C 

background image

289 

Federal Aviation Administration, DOT 

Pt. 121, App. C 

background image

290 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. C 

background image

291 

Federal Aviation Administration, DOT 

Pt. 121, App. C 

[Doc. No. 4080, 30 FR 258, Jan. 3, 1965; 30 FR 481, Jan. 14, 1965, as amended by Amdt. 121–207, 
54 FR 39293, Sept. 25, 1989; Docket FAA–2018–0119, Amdt. 121–380, 83 FR 9173, Mar. 5, 2018] 

background image

292 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. D 

A

PPENDIX

TO

P

ART

121—C

RITERIA FOR

 

D

EMONSTRATION

OF

E

MERGENCY

 

E

VACUATION

P

ROCEDURES

U

NDER

 

§ 121.291 

(a) 

Aborted takeoff demonstration. 

(1) The 

demonstration must be conducted either dur-
ing the dark of the night or during daylight 
with the dark of the night simulated. If the 
demonstration is conducted indoors during 
daylight hours, it must be conducted with 
each window covered and each door closed to 
minimize the daylight effect. Illumination 
on the floor or ground may be used, but it 
must be kept low and shielded against shin-
ing into the airplane’s windows or doors. 

(2) The airplane must be a normal ground 

attitude with landing gear extended. 

(3) Unless the airplane is equipped with an 

off-wing descent means, stands or ramps may 
be used for descent from the wing to the 
ground. Safety equipment such as mats or 
inverted life rafts may be placed on the floor 
or ground to protect participants. No other 
equipment that is not part of the emergency 
evacuation equipment of the airplane may be 
used to aid the participants in reaching the 
ground. 

(4) The airplane’s normal electrical power 

sources must be deenergized. 

(5) All emergency equipment for the type 

of passenger-carrying operation involved 
must be installed in accordance with the cer-
tificate holder’s manual. 

(6) Each external door and exit, and each 

internal door or curtain must be in position 
to simulate a normal takeoff. 

(7) A representative passenger load of per-

sons in normal health must be used. At least 
40 percent of the passenger load must be fe-
males. At least 35 percent of the passenger 
load must be over 50 years of age. At least 15 
percent of the passenger load must be female 
and over 50 year of age. Three life-size dolls, 
not included as part of the total passenger 
load, must be carried by passengers to simu-
late live infants 2 years old or younger. 
Crewmembers, mechanics, and training per-
sonnel, who maintain or operate the airplane 
in the normal course of their duties, may not 
be used as passengers. 

(8) No passenger may be assigned a specific 

seat except as the Administrator may re-
quire. Except as required by item (12) of this 
paragraph, no employee of the certificate 
holder may be seated next to an emergency 
exit. 

(9) Seat belts and shoulder harnesses (as 

required) must be fastened. 

(10) Before the start of the demonstration, 

approximately one-half of the total average 
amount of carry-on baggage, blankets, pil-
lows, and other similar articles must be dis-
tributed at several locations in the aisles 
and emergency exit access ways to create 
minor obstructions. 

(11) The seating density and arrangement 

of the airplane must be representative of the 
highest capacity passenger version of that 
airplane the certificate holder operates or 
proposes to operate. 

(12) Each crewmember must be a member 

of a regularly scheduled line crew, except 
that flight crewmembers need not be mem-
bers of a regularly scheduled line crew, pro-
vided they have knowledge of the airplane. 
Each crewmember must be seated in the seat 
the crewmember is normally assigned for 
takeoff, and must remain in that seat until 
the signal for commencement of the dem-
onstration is received. 

(13) No crewmember or passenger may be 

given prior knowledge of the emergency 
exits available for the demonstration. 

(14) The certificate holder may not prac-

tice, rehearse, or describe the demonstration 
for the participants nor may any participant 
have taken part in this type of demonstra-
tion within the preceding 6 months. 

(15) The pretakeoff passenger briefing re-

quired by § 121.571 may be given in accord-
ance with the certificate holder’s manual. 
The passengers may also be warned to follow 
directions of crewmembers, but may not be 
instructed on the procedures to be followed 
in the demonstration. 

(16) If safety equipment as allowed by item 

(3) of this section is provided, either all pas-
senger and cockpit windows must be blacked 
out or all of the emergency exits must have 
safety equipment in order to prevent disclo-
sure of the available emergency exits. 

(17) Not more than 50 percent of the emer-

gency exits in the sides of the fuselage of an 
airplane that meet all of the requirements 
applicable to the required emergency exits 
for that airplane may be used for the dem-
onstration. Exits that are not to be used in 
the demonstration must have the exit handle 
deactivated or must be indicated by red 
lights, red tape, or other acceptable means, 
placed outside the exits to indicate fire or 
other reason that they are unusable. The 
exits to be used must be representative of all 
of the emergency exits on the airplane and 
must be designated by the certificate holder, 
subject to approval by the Administrator. At 
least one floor level exit must be used. 

(18) Except as provided in paragraph (a)(3) 

of this appendix, all evacuees must leave the 
airplane by a means provided as part of the 
airplane’s equipment. 

(19) The certificate holder’s approved pro-

cedures and all of the emergency equipment 
that is normally available, including slides, 
ropes, lights, and megaphones, must be fully 
utilized during the demonstration, except 
that the flightcrew must take no active role 
in assisting others inside the cabin during 
the demonstration. 

(20) The evacuation time period is com-

pleted when the last occupant has evacuated 
the airplane and is on the ground. Evacuees 

background image

293 

Federal Aviation Administration, DOT 

Pt. 121, App. E 

using stands or ramps allowed by item (3) 
above are considered to be on the ground 
when they are on the stand or ramp: 

Pro-

vided, 

That the acceptance rate of the stand 

or ramp is no greater than the acceptance 
rate of the means available on the airplane 
for descent from the wing during an actual 
crash situation. 

(b) 

Ditching demonstration. 

The demonstra-

tion must assume that daylight hours exist 
outside the airplane, and that all required 
crewmembers are available for the dem-
onstration. 

(1) If the certificate holder’s manual re-

quires the use of passengers to assist in the 
launching of liferafts, the needed passengers 
must be aboard the airplane and participate 
in the demonstration according to the man-
ual. 

(2) A stand must be placed at each emer-

gency exit and wing, with the top of the plat-
form at a height simulating the water level 
of the airplane following a ditching. 

(3) After the ditching signal has been re-

ceived, each evacuee must don a life vest ac-
cording to the certificate holder’s manual. 

(4) Each liferaft must be launched and in-

flated, according to the certificate holder’s 
manual, and all other required emergency 
equipment must be placed in rafts. 

(5) Each evacuee must enter a liferaft, and 

the crewmembers assigned to each liferaft 
must indicate the location of emergency 
equipment aboard the raft and describe its 
use. 

(6) Either the airplane, a mockup of the 

airplane or a floating device simulating a 
passenger compartment must be used. 

(i) If a mockup of the airplane is used, it 

must be a life-size mockup of the interior 
and representative of the airplane currently 
used by or proposed to be used by the certifi-
cate holder, and must contain adequate seats 
for use of the evacuees. Operation of the 
emergency exits and the doors must closely 
simulate those on the airplane. Sufficient 
wing area must be installed outside the over- 
the-wing exits to demonstrate the evacu-
ation. 

(ii) If a floating device simulating a pas-

senger compartment is used, it must be rep-
resentative, to the extent possible, of the 
passenger compartment of the airplane used 
in operations. Operation of the emergency 
exits and the doors must closely simulate op-
eration on that airplane. Sufficient wing 
area must be installed outside the over-the- 
wing exits to demonstrate the evacuation. 
The device must be equipped with the same 
survival equipment as is installed on the air-

plane, to accommodate all persons partici-
pating in the demonstration. 

[Doc. No. 2033, 30 FR 3206, Mar. 9, 1965, as 
amended by Amdt. 121–30, 32 FR 13268, Sept. 
20, 1967; Amdt. 121–41, 33 FR 9067, June 20, 
1968; Amdt. 121–46, 34 FR 5545, Mar. 22, 1969; 
Amdt. 121–47, 34 FR 11489, July 11, 1969; 
Amdt. 121–233, 58 FR 45230, Aug. 26, 1993] 

A

PPENDIX

TO

P

ART

121—F

LIGHT

 

T

RAINING

R

EQUIREMENTS

 

(a) The maneuvers and procedures required 

by § 121.424 for pilot initial, transition, and 
conversion flight training are set forth in 
the certificate holder’s approved low-alti-
tude windshear flight training program, 
§ 121.423 extended envelope training, and in 
this appendix. The maneuvers and proce-
dures required for upgrade training in ac-
cordance with § 121.424 are set forth in this 
appendix and in the certificate holder’s ap-
proved low-altitude windshear flight train-
ing program and § 121.423 extended envelope 
training. For the maneuvers and procedures 
required for upgrade training in accordance 
with § 121.426, this appendix designates the 
airplane or FSTD, as appropriate, that may 
be used. 

(b) All required maneuvers and procedures 

must be performed inflight except that 
windshear and extended envelope training 
maneuvers and procedures must be per-
formed in a full flight simulator (FFS) in 
which the maneuvers and procedures are spe-
cifically authorized to be accomplished. Cer-
tain other maneuvers and procedures may be 
performed in an FFS, an FTD, or a static 
airplane as indicated by the appropriate 
symbol in the respective column opposite 
the maneuver or procedure. 

(c) Whenever a maneuver or procedure is 

authorized to be performed in an FTD, it 
may be performed in an FFS, and in some 
cases, a static airplane. Whenever the re-
quirement may be performed in either an 
FTD or a static airplane, the appropriate 
symbols are entered in the respective col-
umns. 

(d) A Level B or higher FFS may be used 

instead of the airplane to satisfy the inflight 
requirements if the FFS is approved under 
§ 121.407 and is used as part of an approved 
program that meets the requirements for an 
Advanced Simulation Training Program in 
Appendix H of this part. 

(e) For the purpose of this appendix, the 

following symbols mean— 

I = Pilot in Command (PIC) and Second in 

Command (SIC) initial training 

T = PIC and SIC transition training 
U = SIC to PIC upgrade training 
C = Flight engineer (FE) to SIC conversion 

training 

background image

294 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. E 

Maneuvers/procedures 

Inflight 

Static 

airplane 

FFS 

FTD 

As appropriate to the airplane and the oper-

ation involved, flight training for pilots must 
include the following maneuvers and proce-
dures.

I. Preflight: 

(a) Visual inspection of the exterior 

and interior of the airplane, the loca-
tion of each item to be inspected, 
and the purpose for inspecting it. 
The visual inspection may be con-
ducted using an approved pictorial 
means that realistically portrays the 
location and detail of visual inspec-
tion items and provides for the por-
trayal of normal and abnormal con-
ditions.

.............................

I, T, U, C.

(b) Use of the prestart checklist, ap-

propriate control system checks, 
starting procedures, radio and elec-
tronic equipment checks, and the 
selection of proper navigation and 
communications radio facilities and 
frequencies prior to flight.

.............................

.............................

I, T, U, C.

(c)(1) Before March 12, 2019, taxiing, 

sailing, and docking procedures in 
compliance with instructions issued 
by ATC or by the person conducting 
the training.

I, T, U, C.

(2) Taxiing. Beginning March 

12, 2019, this maneuver in-
cludes the following: 

(i) Taxiing, sailing, 

and docking pro-
cedures in compli-
ance with instruc-
tions issued by 
ATC or by the 
person conducting 
the training.

I, T, U, C.

(ii) Use of airport 

diagram (surface 
movement chart).

I, T, U, C.

(iii) Obtaining appro-

priate clearance 
before crossing or 
entering active 
runways.

I, T, U, C.

(iv) Observation of 

all surface move-
ment guidance 
control markings 
and lighting.

I, T, U, C.

(d)(1) Before March 12, 2019, pre- 

takeoff checks that include power-
plant checks.

.............................

.............................

I, T, U, C.

(2) Beginning March 12, 

2019, pre-takeoff proce-
dures that include power-
plant checks, receipt of 
takeoff clearance and con-
firmation of aircraft loca-
tion, and FMS entry (if ap-
propriate) for departure 
runway prior to crossing 
hold short line for takeoff.

.............................

.............................

I, T, U, C.

II. Takeoffs: 
Training in takeoffs must include the types and 

conditions listed below but more than one 
type may be combined where appropriate: 

(a) Normal takeoffs which, for the pur-

pose of this maneuver, begin when 
the airplane is taxied into position 
on the runway to be used.

I, T, U, C.

background image

295 

Federal Aviation Administration, DOT 

Pt. 121, App. E 

Maneuvers/procedures 

Inflight 

Static 

airplane 

FFS 

FTD 

(b) Takeoffs with instrument conditions 

simulated at or before reaching an 
altitude of 100

′ 

above the airport 

elevation.

.............................

.............................

I, T, U, C.

(c)(1) Crosswind takeoffs .....................

I, T, U, C.

(2) Beginning March 12, 

2019, crosswind takeoffs 
including crosswind take-
offs with gusts if prac-
ticable under the existing 
meteorological, airport, and 
traffic conditions.

I, T, U, C.

(d) Takeoffs with a simulated failure of 

the most critical powerplant— 

.............................

.............................

I, T, U, C.

(1) At a point after V1 and 

before V2 that in the judg-
ment of the person con-
ducting the training is ap-
propriate to the airplane 
type under the prevailing 
conditions; or 

.............................

.............................

I, T, U, C.

(2) At a point as close as 

possible after V1 when V1 
and V2 or V1 and VR are 
identical; or 

.............................

.............................

I, T, U, C.

(3) At the appropriate speed 

for nontransport category 
airplanes.

.............................

.............................

I, T, U, C.

(e) Rejected takeoffs accomplished 

during a normal takeoff run after 
reaching a reasonable speed deter-
mined by giving due consideration 
to aircraft characteristics, runway 
length, surface conditions, wind di-
rection and velocity, brake heat en-
ergy, and any other pertinent factors 
that may adversely affect safety or 
the airplane.

.............................

.............................

I, T, U, C.

(f) Night takeoffs. For pilots in transi-

tion training, this requirement may 
be met during the operating experi-
ence required under § 121.434 by 
performing a normal takeoff at night 
when a check airman serving as 
PIC is occupying a pilot station.

I, T, U, C.

III. Flight Maneuvers and Procedures: 

(a) Turns with and without spoilers .....

.............................

.............................

I, T, U, C.

(b) Tuck and Mach buffet ....................

.............................

.............................

I, T, U, C.

(c) Maximum endurance and max-

imum range procedures.

.............................

.............................

I, T, U, C.

(d) Operation of systems and controls 

at the flight engineer station.

.............................

.............................

I, T, U.

(e) Runaway and jammed stabilizer ....

.............................

.............................

I, T, U, C.

(f) Normal and abnormal or alternate 

operation of the following systems 
and procedures: 

(1) Pressurization ..................

.............................

.............................

.............................

I, T, U, C. 

(2) Pneumatic ........................

.............................

.............................

.............................

I, T, U, C. 

(3) Air conditioning ................

.............................

.............................

.............................

I, T, U, C. 

(4) Fuel and oil ......................

.............................

I, T, U, C ............

.............................

I, T, U, C. 

(5) Electrical ..........................

.............................

I, T, U, C ............

.............................

I, T, U, C. 

(6) Hydraulic ..........................

.............................

I, T, U, C ............

.............................

I, T, U, C. 

(7) Flight control ....................

.............................

I, T, U, C ............

.............................

I, T, U, C. 

(8) Anti-icing and deicing ......

.............................

.............................

I, T, U, C.

(9) Autopilot ...........................

.............................

.............................

I, T, U, C.

(10) Automatic or other ap-

proach aids.

.............................

.............................

I, T, U, C.

(11) Stall warning devices, 

stall avoidance devices, 
and stability augmentation 
devices.

.............................

.............................

I, T, U, C.

(12) Airborne radar devices ..

.............................

.............................

I, T, U, C.

background image

296 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. E 

Maneuvers/procedures 

Inflight 

Static 

airplane 

FFS 

FTD 

(13) Any other systems, de-

vices, or aids available.

.............................

.............................

I, T, U, C.

(14) Electrical, hydraulic, 

flight control, and flight in-
strument system malfunc-
tioning or failure.

.............................

I, T, U, C ............

.............................

I, T, U, C. 

(15) Landing gear and flap 

systems failure or malfunc-
tion.

.............................

I, T, U, C ............

.............................

I, T, U, C. 

(16) Failure of navigation or 

communications equipment.

.............................

.............................

I, T, U, C.

(g) Flight emergency procedures that 

include at least the following: 

(1) Powerplant, heater, cargo 

compartment, cabin, flight 
deck, wing, and electrical 
fires.

.............................

I, T, U, C ............

.............................

I, T, U, C. 

(2) Smoke control ..................

.............................

I, T, U, C ............

.............................

I, T, U, C. 

(3) Powerplant failures ..........

.............................

.............................

I, T ......................

U, C. 

(4) Fuel jettisoning .................

.............................

I, T, U, C ............

.............................

I, T, U, C. 

(5) Any other emergency pro-

cedures outlined in the ap-
propriate flight manual.

.............................

.............................

I, T, U, C.

(h) Steep turns in each direction. Each 

steep turn must involve a bank 
angle of 45

° 

with a heading change 

of at least 180

° 

but not more than 

360

°

. This maneuver is not required 

for Group I transition training.

.............................

.............................

I, T, U, C.

(i) Stall Prevention. For the purpose of 

this training the approved recovery 
procedure must be initiated at the 
first indication of an impending stall 
(buffet, stick shaker, aural warning). 
Stall prevention training must be 
conducted in at least the following 
configurations: 

.............................

.............................

I, T, U, C.

(1) Takeoff configuration (ex-

cept where the airplane 
uses only a zero-flap take-
off configuration).

.............................

.............................

I, T, U, C.

(2) Clean configuration ..........

.............................

.............................

I, T, U, C.

(3) Landing configuration ......

.............................

.............................

I, T, U, C.

(j) Recovery from specific flight char-

acteristics that are peculiar to the 
airplane type.

.............................

.............................

I, T, U, C.

(k) Instrument procedures that include 

the following: 

(1) Area departure and arrival  .............................

.............................

I, T, U, C.

(2) Use of navigation systems 

including adherence to as-
signed radials.

.............................

.............................

I, T, U, C.

(3) Holding .............................

.............................

.............................

I, T, U, C.

(l) ILS instrument approaches that in-

clude the following: 

(1) Normal ILS approaches ...

I, T, U, C.

(2) Manually controlled ILS 

approaches with a simu-
lated failure of one power-
plant which occurs before 
initiating the final approach 
course and continues to 
touchdown or through the 
missed approach proce-
dure.

I ..........................

.............................

T, U, C.

(m) Instrument approaches and 

missed approaches other than ILS 
which include the following: 

(1) Nonprecision approaches 

that the pilot is likely to use.

.............................

.............................

U, C ....................

I, T. 

background image

297 

Federal Aviation Administration, DOT 

Pt. 121, App. E 

Maneuvers/procedures 

Inflight 

Static 

airplane 

FFS 

FTD 

(2) In addition to subpara-

graph (1) of this paragraph, 
at least one other nonpreci-
sion approach and missed 
approach procedure that 
the pilot is likely to use.

.............................

.............................

I, T, U, C.

In connection with paragraphs III(l) and III(m), 

each instrument approach must be per-
formed according to any procedures and limi-
tations approved for the approach facility 
used. The instrument approach begins when 
the airplane is over the initial approach fix for 
the approach procedure being used (or 
turned over to the final approach controller in 
the case of GCA approach) and ends when 
the airplane touches down on the runway or 
when transition to a missed approach con-
figuration is completed.

(n) Circling approaches which include 

the following: 

I, T, U, C.

(1) That portion of the circling 

approach to the authorized 
minimum altitude for the 
procedure being used must 
be made under simulated 
instrument conditions.

I, T, U, C.

(2) The circling approach 

must be made to the au-
thorized minimum circling 
approach altitude followed 
by a change in heading 
and the necessary maneu-
vering (by visual reference) 
to maintain a flight path 
that permits a normal land-
ing on a runway at least 
90

° 

from the final approach 

course of the simulated in-
strument portion of the ap-
proach.

I, T, U, C.

(3) The circling approach 

must be performed without 
excessive maneuvering, 
and without exceeding the 
normal operating limits of 
the airplane. The angle of 
bank should not exceed 
30

°

.

I, T, U, C.

Training in the circling approach maneuver is 

not required if the certificate holder’s manual 
prohibits a circling approach in weather con-
ditions below 1000–3 (ceiling and visibility).

(o) Zero-flap approaches. Training in 

this maneuver is not required for a 
particular airplane type if the Admin-
istrator has determined that the 
probability of flap extension failure 
on that type airplane is extremely 
remote due to system design. In 
making this determination, the Ad-
ministrator determines whether 
training on slats only and partial flap 
approaches is necessary.

I, C ......................

.............................

T, U.

(p) Missed approaches which include 

the following: 

(1) Missed approaches from 

ILS approaches.

.............................

.............................

I, T, U, C.

(2) Other missed approaches 

.............................

.............................

.............................

I, T, U, C. 

(3) Missed approaches that 

include a complete ap-
proved missed approach 
procedure.

.............................

.............................

.............................

I, T, U, C. 

background image

298 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. F 

Maneuvers/procedures 

Inflight 

Static 

airplane 

FFS 

FTD 

(4) Missed approaches that 

include a powerplant failure.

.............................

.............................

I, T, U, C.

IV. Landings and Approaches to Landings: 
Training in landings and approaches to land-

ings must include the types and conditions 
listed below but more than one type may be 
combined where appropriate: 

(a) Normal landings .............................

I, T, U, C.

(b) Landing and go around with the 

horizontal stabilizer out of trim.

I, C ......................

.............................

T .........................

U. 

(c) Landing in sequence from an ILS 

instrument approach.

I ..........................

.............................

T, U, C.

(d)(1) Crosswind landing .....................

I, T, U, C.

(2) Beginning March 12, 

2019, crosswind landing, 
including crosswind land-
ings with gusts if prac-
ticable under the existing 
meteorological, airport, and 
traffic conditions.

I, T, U, C.

(e) Maneuvering to a landing with sim-

ulated powerplant failure, as follows: 

(1) For 3-engine airplanes, 

maneuvering to a landing 
with an approved proce-
dure that approximates the 
loss of two powerplants 
(center and one outboard 
engine).

I, C ......................

.............................

T, U.

(2) For other multiengine air-

planes, maneuvering to a 
landing with a simulated 
failure of 50 percent of 
available powerplants with 
the simulated loss of power 
on one side of the airplane.

I, C ......................

.............................

T, U.

(f) Landing under simulated circling 

approach conditions (exceptions 
under III(n) applicable to this re-
quirement).

I ..........................

.............................

T, U, C.

(g) Rejected landings that include a 

normal missed approach procedure 
after the landing is rejected. For the 
purpose of this maneuver the land-
ing should be rejected at approxi-
mately 50 feet and approximately 
over the runway threshold.

I ..........................

.............................

T, U, C.

(h) Zero-flap landings if the Adminis-

trator finds that maneuver appro-
priate for training in the airplane.

I, C ......................

.............................

T, U.

(i) Manual reversion .............................

.............................

.............................

I, T, U, C.

(j) Night landings. For pilots in transi-

tion training, this requirement may 
be met during the operating experi-
ence required under § 121.434 by 
performing a normal landing at night 
when a check airman serving as 
PIC is occupying a pilot station.

I, T, U, C.

[Amdt. 121–382, 85 FR 10926, Feb. 25, 2020] 

A

PPENDIX

TO

P

ART

121—P

ROFICIENCY

 

C

HECK

R

EQUIREMENTS

 

(a) The maneuvers and procedures required 

by § 121.441 for pilot proficiency checks are 
set forth in this appendix. Except for the 
equipment examination, these maneuvers 
and procedures must be performed inflight. 

Certain maneuvers and procedures may be 
performed in an FFS or an FTD as indicated 
by the appropriate symbol in the respective 
column opposite the maneuver or procedure. 

(b) Whenever a maneuver or procedure is 

authorized to be performed in an FTD, it 
may be performed in an FFS. 

(c) A Level B or higher FFS may be used 

instead of the airplane to satisfy the inflight 
requirements if the FFS is approved under 

background image

299 

Federal Aviation Administration, DOT 

Pt. 121, App. F 

§ 121.407 and is used as part of an approved 
program that meets the requirements for an 
Advanced Simulation Training Program in 
Appendix H of this part. 

(d) For the purpose of this appendix, the 

following symbols mean— 

B = Both Pilot in Command (PIC) and Sec-

ond in Command (SIC). 

W = May be waived for both PIC and SIC, 

except during a proficiency check conducted 
to qualify a PIC after completing an upgrade 
training curriculum in accordance with 
§§ 121.420 and 121.426. 

* = A symbol and asterisk (B* or W*) indi-

cates that a particular condition is specified 
in the maneuvers and procedures column. 

# = When a maneuver is preceded by this 

symbol it indicates the maneuver may be re-
quired in the airplane at the discretion of 
the person conducting the check. 

(e) Throughout the maneuvers and proce-

dures prescribed in this appendix, good judg-
ment commensurate with a high level of 
safety must be demonstrated. In determining 
whether such judgment has been shown, the 
person conducting the check considers ad-
herence to approved procedures, actions 
based on analysis of situations for which 
there is no prescribed procedure or rec-
ommended practice, and qualities of pru-
dence and care in selecting a course of ac-
tion. 

Maneuvers/procedures 

Required 

Permitted 

Simulated 

instrument 

conditions 

Inflight 

FFS 

FTD 

Waiver 

provisions of 

§ 121.441(d) 

The procedures and maneuvers set forth in this ap-

pendix must be performed in a manner that satis-
factorily demonstrates knowledge and skill with 
respect to—.

(1) The airplane, its systems and compo-

nents; 

(2) Proper control of airspeed, configura-

tion, direction, altitude, and attitude in 
accordance with procedures and limita-
tions contained in the approved Airplane 
Flight Manual, the certificate holder’s op-
erations manual, checklists, or other ap-
proved material appropriate to the air-
plane type; and 

(3) Compliance with approach, ATC, or 

other applicable procedures. 

I. Preflight: 

(a) Equipment examination (oral or writ-

ten). As part of the proficiency check the 
equipment examination must be closely 
coordinated with, and related to, the 
flight maneuvers portion but may not be 
given during the flight maneuvers por-
tion. The equipment examination must 
cover— 

(1) Subjects requiring a practical 

knowledge of the airplane, its 
powerplants, systems, compo-
nents, operational and perform-
ance factors; 

(2) Normal, abnormal, and emer-

gency procedures, and the op-
erations and limitations relating 
thereto; and.

(3) The appropriate provisions of 

the approved Airplane Flight 
Manual.

The person conducting the check may accept, as 

equal to this equipment examination, an equip-
ment examination given to the pilot in the certifi-
cate holder’s ground training within the preceding 
6 calendar months.

(b) Preflight inspection. The pilot must— 

background image

300 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. F 

Maneuvers/procedures 

Required 

Permitted 

Simulated 

instrument 

conditions 

Inflight 

FFS 

FTD 

Waiver 

provisions of 

§ 121.441(d) 

(1) Conduct an actual visual in-

spection of the exterior and in-
terior of the airplane, locating 
each item and explaining briefly 
the purpose for inspecting it. 
The visual inspection may be 
conducted using an approved 
pictorial means that realistically 
portrays the location and detail 
of visual inspection items and 
provides for the portrayal of 
normal and abnormal condi-
tions. If a flight engineer is a re-
quired flightcrew member for 
the particular type airplane, the 
visual inspection may be 
waived under § 121.441(d) .......

....................

....................

....................

W* 

(2) Demonstrate the use of the 

prestart checklist, appropriate 
control system checks, starting 
procedures, radio and elec-
tronic equipment checks, and 
the selection of proper naviga-
tion and communications radio 
facilities and frequencies prior 
to flight ......................................

....................

....................

....................

(c)(1) Taxiing. Before March 12, 2019, this 

maneuver includes taxiing, sailing, or 
docking procedures in compliance with 
instructions issued by ATC or by the 
person conducting the check. SIC pro-
ficiency checks for a type rating must in-
clude taxiing. However, other SIC pro-
ficiency checks need only include taxiing 
to the extent practical from the seat po-
sition assigned to the SIC .......................

....................

(c)(2) Taxiing. Beginning March 12, 2019, 

this maneuver includes the following: (i) 
Taxiing, sailing, or docking procedures 
in compliance with instructions issued by 
ATC or by the person conducting the 
check. (ii) Use of airport diagram (sur-
face movement chart). (iii) Obtaining ap-
propriate clearance before crossing or 
entering active runways. (iv) Observation 
of all surface movement guidance con-
trol markings and lighting. SIC pro-
ficiency checks for a type rating must in-
clude taxiing. However, other SIC pro-
ficiency checks need only include taxiing 
to the extent practical from the seat po-
sition assigned to the SIC .......................

....................

(d)(1) Powerplant checks. As appropriate 

to the airplane type .................................

....................

....................

(d)(2) Beginning March 12, 2019, pre-take-

off procedures that include powerplant 
checks, receipt of takeoff clearance and 
confirmation of aircraft location, and 
FMS entry (if appropriate), for departure 
runway prior to crossing hold short line 
for takeoff ................................................

....................

....................

II. Takeoff: 
Takeoffs must include the types listed below, but 

more than one type may be combined where ap-
propriate: 

(a) Normal. One normal takeoff which, for 

the purpose of this maneuver, begins 
when the airplane is taxied into position 
on the runway to be used .......................

....................

B* 

background image

301 

Federal Aviation Administration, DOT 

Pt. 121, App. F 

Maneuvers/procedures 

Required 

Permitted 

Simulated 

instrument 

conditions 

Inflight 

FFS 

FTD 

Waiver 

provisions of 

§ 121.441(d) 

(b) Instrument. One takeoff with instrument 

conditions simulated at or before reach-
ing an altitude of 100

′ 

above the airport 

elevation ..................................................

....................

B* 

(c)(1) Crosswind. Before March 12, 2019, 

one crosswind takeoff, if practicable, 
under the existing meteorological, air-
port, and traffic conditions .......................

....................

B* 

(c)(2) Beginning March 12, 2019, one 

crosswind takeoff with gusts, if prac-
ticable, under the existing meteorolog-
ical, airport, and traffic conditions ...........

....................

B* 

#(d) Powerplant failure. One takeoff with a 

simulated failure of the most critical 
powerplant— 

....................

....................

(1) At a point after V1 and before 

V2 that in the judgment of the 
person conducting the check is 
appropriate to the airplane type 
under the prevailing conditions; 

....................

....................

(2) At a point as close as possible 

after V1 when V1 and V2 or V1 
and Vr are identical; or .............

....................

....................

(3) At the appropriate speed for 

nontransport category airplanes 

....................

....................

(e) Rejected. A rejected takeoff may be 

performed in an airplane during a nor-
mal takeoff run after reaching a reason-
able speed determined by giving due 
consideration to aircraft characteristics, 
runway length, surface conditions, wind 
direction and velocity, brake heat en-
ergy, and any other pertinent factors that 
may adversely affect safety or the air-
plane ........................................................

....................

....................

B* 

....................

III. Instrument procedures: 

(a) Area departure and area arrival. During 

each of these maneuvers the pilot 
must— 

....................

....................

W* 

(1) Adhere to actual or simulated 

ATC clearances (including as-
signed radials); and ..................

....................

(2) Properly use available naviga-

tion facilities ..............................

....................

Either area arrival or area departure, but not both, 

may be waived under § 121.441(d). 

(b) Holding. This maneuver includes enter-

ing, maintaining, and leaving holding 
patterns. It may be performed in connec-
tion with either area departure or area 
arrival .......................................................

....................

....................

(c) ILS and other instrument approaches. 

There must be the following: 

(1) At least one normal ILS ap-

proach .......................................

....................

(2) At least one manually con-

trolled ILS approach with a sim-
ulated failure of one power-
plant. The simulated failure 
should occur before initiating 
the final approach course and 
must continue to touchdown or 
through the missed approach 
procedure ..................................

(3) At least one nonprecision ap-

proach procedure using a type 
of nonprecision approach pro-
cedure that the certificate hold-
er is approved to use ................

....................

background image

302 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. F 

Maneuvers/procedures 

Required 

Permitted 

Simulated 

instrument 

conditions 

Inflight 

FFS 

FTD 

Waiver 

provisions of 

§ 121.441(d) 

(4) At least one nonprecision ap-

proach procedure using a dif-
ferent type of nonprecision ap-
proach procedure than per-
formed under subparagraph (3) 
of this paragraph that the cer-
tificate holder is approved to 
use ............................................

....................

....................

(5) For each type of EFVS oper-

ation the certificate holder is 
authorized to conduct, at least 
one instrument approach must 
be made using an EFVS ..........

B* 

Each instrument approach must be performed ac-

cording to any procedures and limitations ap-
proved for the approach procedure used. The in-
strument approach begins when the airplane is 
over the initial approach fix for the approach pro-
cedure being used (or turned over to the final ap-
proach controller in the case of GCA approach) 
and ends when the airplane touches down on the 
runway or when transition to a missed approach 
configuration is completed. Instrument conditions 
need not be simulated below 100

′ 

above touch-

down zone elevation. 

(d) Circling approaches. If the certificate 

holder is approved for circling minimums 
below 1000–3 (ceiling and visibility), at 
least one circling approach must be 
made under the following conditions— 

....................

....................

B* 

....................

W* 

(1) The portion of the approach to 

the authorized minimum circling 
approach altitude must be 
made under simulated instru-
ment conditions .........................

....................

B* 

(2) The approach must be made 

to the authorized minimum cir-
cling approach altitude followed 
by a change in heading and the 
necessary maneuvering (by vis-
ual reference) to maintain a 
flight path that permits a normal 
landing on a runway at least 
90

° 

from the final approach 

course of the simulated instru-
ment portion of the approach ...

....................

....................

B* 

(3) The circling approach must be 

performed without excessive 
maneuvering, and without ex-
ceeding the normal operating 
limits of the airplane. The angle 
of bank should not exceed 30

°

....................

....................

B* 

If local conditions beyond the control of the pilot 

prohibit the maneuver or prevent it from being 
performed as required, it may be waived as pro-
vided in § 121.441(d). However, the maneuver 
may not be waived under this provision for two 
successive proficiency checks. Except for a SIC 
proficiency check for a type rating, the circling 
approach maneuver is not required for a SIC if 
the certificate holder’s manual prohibits a SIC 
from performing a circling approach in operations 
under this part. 

(e) Missed approach. 

(1) At least one missed approach 

from an ILS approach ...............

....................

....................

B* 

(2) At least one additional missed 

approach for SIC proficiency 
checks for a type rating and for 
all PIC proficiency checks ........

....................

....................

B* 

background image

303 

Federal Aviation Administration, DOT 

Pt. 121, App. F 

Maneuvers/procedures 

Required 

Permitted 

Simulated 

instrument 

conditions 

Inflight 

FFS 

FTD 

Waiver 

provisions of 

§ 121.441(d) 

A complete approved missed approach procedure 

must be accomplished at least once. At the dis-
cretion of the person conducting the check a sim-
ulated powerplant failure may be required during 
any of the missed approaches. These maneuvers 
may be performed either independently or in con-
junction with maneuvers required under Sections 
III or V of this appendix. At least one missed ap-
proach must be performed inflight. 

IV. Inflight Maneuvers: 

(a) Steep turns. For SIC proficiency 

checks for a type rating and for all PIC 
proficiency checks, at least one steep 
turn in each direction must be per-
formed. Each steep turn must involve a 
bank angle of 45

° 

with a heading 

change of at least 180

° 

but not more 

than 360

°

.................................................

....................

(b) Stall Prevention. For the purpose of 

this maneuver the approved recovery 
procedure must be initiated at the first 
indication of an impending stall (buffet, 
stick shaker, aural warning). Except as 
provided below there must be at least 
three stall prevention recoveries as fol-
lows: ........................................................

....................

....................

W* 

(1) Takeoff configuration (except 

where the airplane uses only a 
zero-flap takeoff configuration)

....................

(2) Clean configuration .................

....................

(3) Landing configuration .............

....................

At the discretion of the person conducting the 

check, one stall prevention recovery must be per-
formed in one of the above configurations while 
in a turn with the bank angle between 15

° 

and 

30

°

. Two out of the three stall prevention recov-

eries required by this paragraph may be waived. 

If the certificate holder is authorized to dispatch or 

flight release the airplane with a stall warning de-
vice inoperative the device may not be used dur-
ing this maneuver. 

(c) Specific flight characteristics. Recovery 

from specific flight characteristics that 
are peculiar to the airplane type .............

....................

....................

....................

(d) Powerplant failures. In addition to spe-

cific requirements for maneuvers with 
simulated powerplant failures, the per-
son conducting the check may require a 
simulated powerplant failure at any time 
during the check ......................................

....................

....................

V. Landings and Approaches to Landings: 
Notwithstanding the authorizations for combining 

and waiving maneuvers and for the use of an 
FFS, at least two actual landings (one to a full 
stop) must be made for all PIC proficiency 
checks, all initial SIC proficiency checks, and all 
SIC proficiency checks for a type rating.

Landings and approaches to landings must include 

the types listed below, but more than one type 
may be combined where appropriate: 

(a) Normal landing ......................................

....................

(b) Landing in sequence from an ILS in-

strument approach except that if cir-
cumstances beyond the control of the 
pilot prevent an actual landing, the per-
son conducting the check may accept 
an approach to a point where in his 
judgment a landing to a full stop could 
have been made .....................................

....................

B* 

background image

304 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. F 

Maneuvers/procedures 

Required 

Permitted 

Simulated 

instrument 

conditions 

Inflight 

FFS 

FTD 

Waiver 

provisions of 

§ 121.441(d) 

(c)(1) Crosswind landing, if practical under 

existing meteorological, airport, and traf-
fic conditions ...........................................

....................

B* 

(c)(2) Beginning March 12, 2019, cross-

wind landing with gusts, if practical 
under existing meteorological, airport, 
and traffic conditions ...............................

....................

B* 

(d) Maneuvering to a landing with simu-

lated powerplant failure as follows: 

(1) In the case of 3-engine air-

planes, maneuvering to a land-
ing with an approved procedure 
that approximates the loss of 
two powerplants (center and 
one outboard engine); or ..........

....................

....................

B* 

(2) In the case of other multien-

gine airplanes, maneuvering to 
a landing with a simulated fail-
ure of 50 percent of available 
powerplants, with the simulated 
loss of power on one side of 
the airplane ...............................

....................

....................

B* 

Notwithstanding the requirements of subparagraphs 

(d) (1) and (2) of this paragraph, for an SIC pro-
ficiency check, except for an SIC proficiency 
check for a type rating, the simulated loss of 
power may be only the most critical powerplant. 

In addition, a PIC may omit the maneuver required 

by subparagraph (d)(1) or (d)(2) of this paragraph 
during a required proficiency check or FFS 
course of training if he satisfactorily performed 
that maneuver during the preceding proficiency 
check, or during the preceding approved FFS 
course of training under the observation of a 
check airman, whichever was completed later. 

(e) Except as provided in paragraph (f) of 

this section, if the certificate holder is 
approved for circling minimums below 
1000–3 (ceiling and visibility), a landing 
under simulated circling approach condi-
tions. However, when performed in an 
airplane, if circumstances beyond the 
control of the pilot prevent a landing, the 
person conducting the check may ac-
cept an approach to a point where, in 
his judgment, a landing to a full stop 
could have been made ...........................

....................

....................

B* 

#(f) A rejected landing, including a normal 

missed approach procedure, that is re-
jected approximately 50

′ 

over the run-

way and approximately over the runway 
threshold. This maneuver may be com-
bined with instrument, circling, or missed 
approach procedures, but instrument 
conditions need not be simulated below 
100 feet above the runway .....................

....................

....................

(g) If the certificate holder is authorized to 

conduct EFVS operations to touchdown 
and rollout, at least one instrument ap-
proach to a landing must be made using 
an EFVS, including the use of enhanced 
flight vision from 100 feet above the 
touchdown zone elevation to touchdown 
and rollout ...............................................

B* 

background image

305 

Federal Aviation Administration, DOT 

Pt. 121, App. G 

Maneuvers/procedures 

Required 

Permitted 

Simulated 

instrument 

conditions 

Inflight 

FFS 

FTD 

Waiver 

provisions of 

§ 121.441(d) 

(h) If the certificate holder is authorized to 

conduct EFVS operations to 100 feet 
above the touchdown zone elevation, at 
least one instrument approach to a land-
ing must be made using an EFVS, in-
cluding the transition from enhanced 
flight vision to natural vision at 100 feet 
above the touchdown zone elevation .....

B* 

VI. Normal and Abnormal Procedures: 
Each pilot must demonstrate the proper use of as 

many of the systems and devices listed below as 
the person conducting the check finds are nec-
essary to determine that the person being 
checked has a practical knowledge of the use of 
the systems and devices appropriate to the air-
plane type: 

(a) Anti-icing and deicing systems .............

....................

....................

(b) Autopilot systems ..................................

....................

....................

(c) Automatic or other approach aid sys-

tems .........................................................

....................

....................

(d) Stall warning devices, stall avoidance 

devices, and stability augmentation de-
vices ........................................................

....................

....................

(e) Airborne radar devices ..........................

....................

....................

(f) Any other systems, devices, or aids 

available ..................................................

....................

....................

(g) Hydraulic and electrical system failures 

and malfunctions .....................................

....................

....................

....................

(h) Landing gear and flap systems failure 

or malfunction ..........................................

....................

....................

....................

(i) Failure of navigation or communications 

equipment ................................................

....................

....................

VII. Emergency Procedures: 
Each pilot must demonstrate the proper emergency 

procedures for as many of the emergency situa-
tions listed below as the person conducting the 
check finds are necessary to determine that the 
person being checked has an adequate knowl-
edge of, and ability to perform, such procedure: 

(a) Fire in flight ...........................................

....................

....................

(b) Smoke control .......................................

....................

....................

(c) Rapid decompression ............................

....................

....................

(d) Emergency descent ..............................

....................

....................

(e) Any other emergency procedures out-

lined in the approved Airplane Flight 
Manual .....................................................

....................

....................

[Amdt. 121–382, 85 FR 10929, Feb. 25, 2020] 

A

PPENDIX

TO

P

ART

121—D

OPPLER

 

R

ADAR

AND

I

NERTIAL

N

AVIGATION

 

S

YSTEM

(INS): R

EQUEST FOR

E

VAL

-

UATION

; E

QUIPMENT AND

E

QUIPMENT

 

I

NSTALLATION

; T

RAINING

P

ROGRAM

E

QUIPMENT

A

CCURACY

AND

R

ELI

-

ABILITY

; E

VALUATION

P

ROGRAM

 

1. 

Application authority. 

(a) An applicant for 

authority to use a Doppler Radar or Inertial 
Navigation System must submit a request 
for evaluation of the system to the respon-
sible Flight Standards office charged with 
the overall inspection of its operations 30 
days prior to the start of evaluation flights. 

(b) The application must contain: 

(1) A summary of experience with the sys-

tem showing to the satisfaction of the Ad-
ministrator a history of the accuracy and re-
liability of the system proposed to be used. 

(2) A training program curriculum for ini-

tial approval under § 121.405. 

(3) A maintenance program for compliance 

with subpart L of this part. 

(4) A description of equipment installation. 
(5) Proposed revisions to the Operations 

Manual outlining all normal and emergency 
procedures relative to use of the proposed 
system, including detailed methods for con-
tinuing the navigational function with par-
tial or complete equipment failure, and 
methods for determining the most accurate 
system when an unusually large divergence 
between systems occurs. For the purpose of 

background image

306 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. G 

this appendix, a large divergence is a diver-
gence that results in a track that falls be-
yond clearance limits. 

(6) Any proposed revisions to the minimum 

equipment list with adequate justification 
therefor. 

(7) A list of operations to be conducted 

using the system, containing an analysis of 
each with respect to length, magnetic com-
pass reliability, availability of en route aids, 
and adequacy of gateway and terminal radio 
facilities to support the system. For the pur-
pose of this appendix, a gateway is a specific 
navigational fix where use of long range 
navigation commences or terminates. 

2. 

Equipment and equipment installation—In-

ertial Navigation Systems 

(

INS

or Doppler 

Radar System. 

(a) Inertial Navigation and 

Doppler Radar Systems must be installed in 
accordance with applicable airworthiness re-
quirements. 

(b) Cockpit arrangement must be visible 

and useable by either pilot seated at his duty 
station. 

(c) The equipment must provide, by visual, 

mechanical, or electrical output signals, in-
dications of the invalidity of output data 
upon the occurrence of probable failures or 
malfunctions within the system. 

(d) A probable failure or malfunction with-

in the system must not result in loss of the 
aircraft’s required navigation capability. 

(e) The alignment, updating, and naviga-

tion computer functions of the system must 
not be invalidated by normal aircraft power 
interruptions and transients. 

(f) The system must not be the source of 

cause of objectionable radio frequency inter-
ference, and must not be adversely affected 
by radio frequency interference from other 
aircraft systems. 

(g) The FAA-approved airplane flight man-

ual, or supplement thereto, must include 
pertinent material as required to define the 
normal and emergency operating procedures 
and applicable operating limitations associ-
ated with INS and Doppler performance 
(such as maximum latitude at which ground 
alignment capability is provided, or devi-
ations between systems). 

3. 

Equipment and equipment installation—In-

ertial Navigation Systems 

(

INS

). (a) If an appli-

cant elects to use an Inertial Navigation 
System it must be at least a dual system (in-
cluding navigational computers and ref-
erence units). At least two systems must be 
operational at takeoff. The dual system may 
consist of either two INS units, or one INS 
unit and one Doppler Radar unit. 

(b) Each Inertial Navigation System must 

incorporate the following: 

(1) Valid ground alignment capability at 

all latitudes appropriate for intended use of 
the installation. 

(2) A display of alignment status or a ready 

to navigate light showing completed align-
ment to the flight crew. 

(3) The present position of the airplane in 

suitable coordinates. 

(4) Information relative to destinations or 

waypoint positions: 

(i) The information needed to gain and 

maintain a desired track and to determine 
deviations from the desired track. 

(ii) The information needed to determine 

distance and time to go to the next waypoint 
or destination. 

(c) For INS installations that do not have 

memory or other inflight alignment means, 
a separate electrical power source (inde-
pendent of the main propulsion system) must 
be provided which can supply, for at least 5 
minutes, enough power (as shown by analysis 
or as demonstrated in the airplane) to main-
tain the INS in such condition that its full 
capability is restored upon the reactivation 
of the normal electrical supply. 

(d) The equipment must provide such vis-

ual, mechanical, or electrical output signals 
as may be required to permit the flight crew 
to detect probable failures or malfunctions 
in the system. 

4. 

Equipment and equipment installation— 

Doppler Radar Systems. 

(a) If an applicant 

elects to use a Doppler Radar System it 
must be at least a dual system (including 
dual antennas or a combined antenna de-
signed for multiple operation), except that: 

(1) A single operating transmitter with a 

standby capable of operation may be used in 
lieu of two operating transmitters. 

(2) Single heading source information to 

all installations may be utilized, provided a 
compass comparator system is installed and 
operational procedures call for frequent 
cross-checks of all compass heading indica-
tors by crewmembers. 

The dual system may consist of either two 
Doppler Radar units or one Doppler Radar 
unit and one INS unit. 

(b) At least two systems must be oper-

ational at takeoff. 

(c) As determined by the Administrator 

and specified in the certificate holder’s oper-
ations specifications, other navigational aids 
may be required to update the Doppler Radar 
for a particular operation. These may in-
clude DME, VOR, ADF, ground-based radar, 
and airborne weather radar. When these aids 
are required, the cockpit arrangement must 
be such that all controls are accessible to 
each pilot seated at his duty station. 

5. 

Training programs. 

The initial training 

program for Doppler Radar and Inertial 
Navigation Systems must include the fol-
lowing: 

(a) Duties and responsibilities of flight 

crewmembers, dispatchers, and maintenance 
personnel. 

(b) For pilots, instruction in the following: 
(1) Theory and procedures, limitations, de-

tection of malfunctions, preflight and 
inflight testing, and cross-checking methods. 

background image

307 

Federal Aviation Administration, DOT 

Pt. 121, App. H 

(2) The use of computers, an explanation of 

all systems, compass limitations at high 
latitudes, a review of navigation, flight plan-
ning, and applicable meteorology. 

(3) The methods for updating by means of 

reliable fixes. 

(4) The actual plotting of fixes. 
(c) Abnormal and emergency procedures. 
6. 

Equipment accuracy and reliability. 

(a) 

Each Inertial Navigation System must meet 
the following accuracy requirements, as ap-
propriate: 

(1) For flights up to 10 hours’ duration, no 

greater than 2 nautical miles per hour of cir-
cular error on 95 percent of system flights 
completed is permitted. 

(2) For flights over 10 hours’ duration, a 

tolerance of 

±

20 miles cross-track and 

±

25 

miles along-track on 95 percent of system 
flights completed is permitted. 

(b) Compass heading information to the 

Doppler Radar must be maintained to an ac-
curacy of 

±

1

° 

and total system deviations 

must not exceed 2

°

. When free gyro tech-

niques are used, procedures shall be utilized 
to ensure that an equivalent level of heading 
accuracy and total system deviation is at-
tained. 

(c) Each Doppler Radar System must meet 

accuracy requirements of 

±

20 miles cross- 

track and 

±

25 miles along-track for 95 per-

cent of the system flights completed. Updat-
ing is permitted. 

A system that does not meet the require-
ments of this section will be considered a 
failed system. 

7. 

Evaluation program. 

(a) Approval by eval-

uation must be requested as a part of the ap-
plication for operational approval of a Dopp-
ler Radar or Inertial Navigation System. 

(b) The applicant must provide sufficient 

flights which show to the satisfaction of the 
Administrator the applicant’s ability to use 
cockpit navigation in his operation. 

(c) The Administrator bases his evaluation 

on the following: 

(1) Adequacy of operational procedures. 
(2) Operational accuracy and reliability of 

equipment and feasibility of the system with 
regard to proposed operations. 

(3) Availability of terminal, gateway, area, 

and en route ground-based aids, if required, 
to support the self-contained system. 

(4) Acceptability of cockpit workload. 
(5) Adequacy of flight crew qualifications. 
(6) Adequacy of maintenance training and 

availability of spare parts. 

After successful completion of evaluation 
demonstrations, FAA approval is indicated 
by issuance of amended operations specifica-
tions and en route flight procedures defining 
the new operation. Approval is limited to 
those operations for which the adequacy of 
the equipment and the feasibility of cockpit 

navigation has been satisfactorily dem-
onstrated. 

[Doc. No. 10204, 37 FR 6464, Mar. 30, 1972, as 
amended by Amdt. 121–207, 54 FR 39293, Sept. 
25, 1989; Docket FAA–2017–0733, Amdt. 121– 
379, 82 FR 34398, July 25, 2017; Docket FAA– 
2018–0119, Amdt. 121–380, 83 FR 9173, Mar. 5, 
2018] 

A

PPENDIX

TO

P

ART

121—A

DVANCED

 

S

IMULATION

 

This appendix prescribes criteria for use of 

Level B or higher FFSs to satisfy the 
inflight requirements of Appendices E and F 
of this part and the requirements of § 121.439. 
The criteria in this appendix are in addition 
to the FFS approval requirements in 
§ 121.407. Each FFS used under this appendix 
must be approved as a Level B, C, or D FFS, 
as appropriate. 

A

DVANCED

S

IMULATION

T

RAINING

P

ROGRAM

 

For a certificate holder to conduct Level C 

or D training under this appendix all re-
quired FFS instruction and checks must be 
conducted under an advanced simulation 
training program approved by the Adminis-
trator for the certificate holder. This pro-
gram must also ensure that all instructors 
and check airmen used in Appendix H train-
ing and checking are highly qualified to pro-
vide the training required in the training 
program. The advanced simulation training 
program must include the following: 

1. The certificate holder’s initial, transi-

tion, conversion, upgrade, and recurrent FFS 
training programs and its procedures for re- 
establishing recency of experience in the 
FFS. 

2. How the training program will integrate 

Level B, C, and D FFSs with other FSTDs to 
maximize the total training, checking, and 
certification functions. 

3. Documentation that each instructor and 

check airman has served for at least 1 year 
in that capacity in a certificate holder’s ap-
proved program or has served for at least 1 
year as a pilot in command or second in com-
mand in an airplane of the group in which 
that pilot is instructing or checking. 

4. A procedure to ensure that each instruc-

tor and check airman actively participates 
in either an approved regularly scheduled 
line flying program as a flightcrew member 
or an approved line observation program in 
the same airplane type for which that person 
is instructing or checking. 

5. A procedure to ensure that each instruc-

tor and check airman is given a minimum of 
4 hours of training each year to become fa-
miliar with the certificate holder’s advanced 
simulation training program, or changes to 
it, and to emphasize their respective roles in 
the program. Training for instructors and 
check airmen must include training policies 

background image

308 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. K 

and procedures, instruction methods and 
techniques, operation of FFS controls (in-
cluding environmental and trouble panels), 
limitations of the FFS, and minimum equip-
ment required for each course of training. 

6. A special Line-Oriented Flight Training 

(LOFT) program to facilitate the transition 
from the FFS to line flying. This LOFT pro-
gram must consist of at least a 4-hour course 
of training for each flightcrew. It also must 
contain at least two representative flight 
segments of the certificate holder’s oper-
ations. One of the flight segments must con-
tain strictly normal operating procedures 
from push back at one airport to arrival at 
another. Another flight segment must con-
tain training in appropriate abnormal and 
emergency flight operations. After March 12, 
2019, the LOFT must provide an opportunity 
for the pilot to demonstrate workload man-
agement and pilot monitoring skills. 

FFS T

RAINING

, C

HECKING AND

Q

UALIFICATION

 

P

ERMITTED

 

1. Level B FFS 

a. Recent experience (§ 121.439). 
b. Training in night takeoffs and landings 

(Appendix E of this part). 

c. Except for EFVS operations, landings in 

a proficiency check (Appendix F of this 
part). 

2. Level C and D FFS 

a. Recent experience (§ 121.439). 
b. All pilot flight training and checking re-

quired by this part except the following: 

i. The operating experience, operating cy-

cles, and consolidation of knowledge and 
skills requirements of § 121.434; 

ii. The line check required by § 121.440; and 
iii. The visual inspection of the exterior 

and interior of the airplane required by ap-
pendices E and F. 

c. The practical test requirements of 

§ 61.153(h) of this chapter, except the visual 
inspection of the exterior and interior of the 
airplane. 

[Amdt. 121–382, 85 FR 10934, Feb. 25, 2020] 

A

PPENDIXES

I–J 

TO

P

ART

121 

[R

ESERVED

A

PPENDIX

TO

P

ART

121—P

ERFORM

-

ANCE

R

EQUIREMENTS

FOR

C

ERTAIN

 

T

URBOPROPELLER

P

OWERED

A

IR

-

PLANES

 

1. 

Applicability. 

This appendix specifies re-

quirements for the following turbopropeller 
powered airplanes that must comply with 
the Airplane Performance Operating Limita-
tions in §§ 121.189 through 121.197: 

a. After December 20, 2010, each airplane 

manufactured before March 20, 1997 and type 
certificated in the: 

i. Normal category before July 1, 1970, and 

meets special conditions issued by the Ad-
ministrator for airplanes intended for use in 
operations under part 135 of this chapter. 

ii. Normal category before July 19, 1970, 

and meets the additional airworthiness 
standards in SFAR No. 23 of 14 CFR part 23. 

iii. Normal category, and complies with 

the additional airworthiness standards in ap-
pendix A of part 135 of this chapter. 

iv. Normal category, and complies with 

section 1.(a) or 1.(b) of SFAR No. 41 of 14 CFR 
part 21. 

b. After March 20, 1997, each airplane: 
i. Type certificated prior to March 29, 1995, 

in the commuter category. 

ii. Manufactured on or after March 20, 1997, 

and that was type certificated in the normal 
category, and complies with the require-
ments described in paragraphs 1.a.i through 
iii of this appendix. 

2. 

Background. 

Sections 121.157 and 

121.173(b) require that the airplanes operated 
under this part and described in paragraph 1 
of this appendix, comply with the Airplane 
Performance Operating Limitations in 
§§ 121.189 through 121.197. Airplanes described 
in § 121.157(f) and paragraph 1.a of this appen-
dix must comply on and after December 20, 
2010. Airplanes described in § 121.157(e) and 
paragraph 1.b of this appendix must comply 
on and after March 20, 1997. (Airplanes type 
certificated in the normal category, and in 
accordance with SFAR No. 41 of 14 CFR part 
21, as described in paragraph 1.a.iv of this ap-
pendix, may not be produced after October 
17, 1991.) 

3. 

References. 

Unless otherwise specified, 

references in this appendix to sections of 
part 23 of this chapter are to those sections 
of 14 CFR part 23, as amended by Amend-
ment No. 23–45 (August 6, 1993, 58 FR 42156). 

Performance 

4. 

Interim Airplane Performance Operating 

Limitations. 

a. Until December 20, 2010, airplanes de-

scribed in paragraph 1.a of this appendix may 
continue to comply with the requirements in 
subpart I of part 135 and § 135.181(a)(2) of this 
chapter that apply to small, nontransport 
category airplanes. 

b. Until March 20, 1997, airplanes described 

in paragraph 1.b.i of this appendix may con-
tinue to comply with the requirements in 
subpart I of part 135 of this chapter that 
apply to commuter category airplanes. 

5. 

Final Airplane Performance Operating Lim-

itations. 

a. Through an amended type certification 

program or a supplemental type certification 
program, each airplane described in para-
graph 1.a and 1.b.ii of this appendix must be 
shown to comply with the commuter cat-
egory performance requirements specified in 
this appendix, which are included in part 23 

background image

309 

Federal Aviation Administration, DOT 

Pt. 121, App. L 

of this chapter. Each new revision to a cur-
rent airplane performance operating limita-
tion for an airplane that is or has been dem-
onstrated to comply, must also be approved 
by the Administrator. An airplane approved 
to the requirements of section 1.(b) of SFAR 
No. 41 of 14 CFR part 21, as described in para-
graph 1.a.iv of this appendix, and that has 
been demonstrated to comply with the addi-
tional requirements of section 4.(c) of SFAR 
No. 41 of 14 CFR part 21 and International 
Civil Aviation Organization Annex 8 (avail-
able from the FAA, 800 Independence Avenue 
SW., Washington, DC 20591), will be consid-
ered to be in compliance with the commuter 
category performance requirements. 

b. Each turbopropeller powered airplane 

subject to this appendix must be dem-
onstrated to comply with the airplane per-
formance operating limitation requirements 
of this chapter specified as follows: 

i. Section 23.45 Performance General. 
ii. Section 23.51 Takeoff. 
iii. Section 23.53 Takeoff speeds. 
iv. Section 23.55 Accelerate stop distance. 
v. Section 23.57 Takeoff path. 
vi. Section 23.59 Takeoff distance and take-

off run. 

vii. Section 23.61 Takeoff flight path. 
viii. Section 23.65 Climb: All engines oper-

ating. 

ix. Section 23.67 Climb: one engine inoper-

ative. 

x. Section 23.75 Landing. 
xi. Section 23.77 Balked landing. 

xii. Sections 23.1581 through 23.1589 Air-

plane flight manual and approved manual 
material. 

6. 

Operation. 

After compliance with the 

final airplane performance operating limita-
tions requirements has been demonstrated 
and added to the Airplane Flight Manual 
performance data of the affected airplane, 
that airplane must be operated in accordance 
with the performance limitations of §§ 121.189 
through 121.197. 

[Doc. No. 28154, 60 FR 65936, Dec. 20, 1995, as 
amended by Doc. No. OST–2002–13435] 

A

PPENDIX

TO

P

ART

121—T

YPE

C

ER

-

TIFICATION

R

EGULATIONS

M

ADE

P

RE

-

VIOUSLY

E

FFECTIVE

 

Appendix L lists regulations in this part 

that require compliance with standards con-
tained in superseded type certification regu-
lations that continue to apply to certain 
transport category airplanes. The tables set 
out citations to current CFR section, appli-
cable aircraft, superseded type certification 
regulation and applicable time periods, and 
the CFR edition and F

EDERAL

R

EGISTER

doc-

uments where the regulation having prior ef-
fect is found. Copies of all superseded regula-
tions may be obtained at the Federal Avia-
tion Administration Law Library, Room 924, 
800 Independence Avenue SW., Washington, 
DC. 

Part 121 section 

Applicable aircraft 

Provisions: CFR/FR references 

§ 121.312(a)(1)(i) ............

Transport category; or nontransport category 

type certificated before January 1, 1965; pas-
senger capacity of 20 or more; manufactured 
prior to August 20, 1990.

Heat release rate testing. 14 CFR 25.853(d) in 

effect March 6, 1995: 14 CFR parts 1 to 59, 
Revised as of January 1, 1995, and amended 
by Amdt. 25–83, 60 FR 6623, February 2, 
1995. 

Formerly 14 CFR 25.853(a–1) in effect August 

20, 1986: 14 CFR parts 1 to 59, Revised as of 
January 1, 1986. 

§ 121.312(a)(1)(ii) ...........

Transport category; or nontransport category 

type certificated before January 1, 1965; pas-
senger capacity of 20 or more; manufactured 
after August 19, 1990.

Heat release rate and smoke testing. 14 CFR 

25.853(d) in effect March 6, 1995: 14 CFR 
parts 1 to 59, Revised as of January 1, 1995, 
and amended by Amdt. 25–83, 60 FR 6623, 
February 2, 1995. 

Formerly 14 CFR 25.853(a–1) in effect Sep-

tember 26, 1988: 14 CFR parts 1 to 59, Re-
vised as of January 1, 1988, and amended by 
Amdt. 25–66, 53 FR 32584, August 25, 1988 

§ 121.312(a)(2)(i) ............

Transport category; or nontransport category 

type certificate before January 1, 1965; appli-
cation for type certificate filed prior to May 1, 
1972; substantially complete replacement of 
cabin interior on or after May 1, 1972.

Provisions of 14 CFR 25.853 in effect on April 

30, 1972: 14 CFR parts 1 to 59, Revised as of 
January 1, 1972. 

§ 121.312(a)(3)(i) ............

Transport category type certificated after January 

1, 1958; nontransport category type certificated 
after January 1, 1958, but before January 1, 
1965; passenger capacity of 20 or more; sub-
stantially complete replacement of the cabin in-
terior on or after March 6, 1995.

Heat release rate testing. 14 CFR 25.853(d) in 

effect March 6, 1995: 14 CFR parts 1 to 59, 
Revised as of January 1, 1995; and amended 
by 25–83, 60 FR 6623, February 2, 1995. 

Formerly 14 CFR 25.853(a–1) in effect August 

20, 1986: 14 CFR parts 1 to 59, Revised as of 
January 1, 1986. 

background image

310 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. M 

Part 121 section 

Applicable aircraft 

Provisions: CFR/FR references 

§ 121.312(a)(3)(ii) ...........

Transport category type certificated after January 

1, 1958; nontransport category type certificated 
after January 1, 1958, but before January 1, 
1965; passenger capacity of 20 or more; sub-
stantially complete replacement of the cabin in-
terior on or after August 20, 1990.

Heat release rate and smoke testing. 14 CFR 

25.853(d) in effect March 6, 1995; 14 CFR 
parts 1 to 59, Revised as of January 1, 1995; 
and amended by 25–83, 60 FR 6623, February 
2, 1995. 

Formerly 14 CFR § 25.853(a–1) in effect Sep-

tember 26, 1988: CFR, Title 14, Parts 1 to 59, 
Revised as of January 1, 1988, and amended 
by 25–66, 53 FR 32584, August 25, 1988. 

§ 121.312(b) (1) and (2)

Transport category airplane type certificated after 

January 1, 1958; Nontransport category air-
plane type certificated after December 31, 
1964.

Seat cushions. 14 CFR 25.853(c) effective on 

November 26, 1984: 14 CFR parts 1 to 59, 
Revised as of January 1, 1984, and amended 
by \n25–59, 49 FR 43188, October 26, 1984. 

§ 121.312(c) ....................

Airplane type certificated in accordance with 

SFAR No. 41; maximum certificated takeoff 
weight in excess of 12,500 pounds.

Compartment interior requirements. 14 CFR 

25.853(a) in effect March 6, 1995: 14 CFR 
parts 1 to 59, Revised as of January 1, 1995, 
and amended by 25–83, 60 FR 6623, February 
2, 1995. 

Formerly 14 CFR 25.853(a), (b–1), (b–2), and 

(b–3) in effect on September 26, 1978: 14 
CFR parts 1 to 59, Revised as of January 1, 
1978. 

§ 121.314(a) ...................

Transport category airplanes type certificated 

after January 1, 1958.

Class C or D cargo or baggage compartment 

definition, 14 CFR 25.857 in effect on June 16, 
1986, 14 CFR parts 1 to 59, Revised 1/1/97, 
and amended by Amendment 25–60, 51 FR 
18243, May 16, 1986. 

[Doc. No. 28154, 60 FR 65936, Dec. 20, 1995, as amended by Amdt. 121–269, 63 FR 8049, Feb. 17, 
1998] 

A

PPENDIX

TO

P

ART

121—A

IRPLANE

F

LIGHT

R

ECORDER

S

PECIFICATIONS

 

The recorded values must meet the designated range, resolution and accuracy requirements during static and dynamic condi-

tions. Dynamic condition means the parameter is experiencing change at the maximum rate attainable, including the maximum 
rate of reversal. All data recorded must be correlated in time to within one second. 

Parameters 

Range 

Accuracy (sensor 

input) 

Seconds per 

sampling interval 

Resolution 

Remarks 

1. Time or relative 

times counts.

1

 

24 Hrs, 0 to 

4095.

±

0.125% per 

hour.

4 ........................

1 sec .................

UTC time preferred when 

available. Count incre-
ments each 4 seconds of 
system operation. 

2. Pressure Alti-

tude.

¥

1000 ft to max 
certificated alti-
tude of aircraft. 
+ 5000 ft.

±

100 to 

±

700 ft 

(see table, 
TSO C124a or 
TSO C51a).

1 ........................

5

′ 

to 35

.............

Data should be obtained 

from the air data computer 
when practicable. 

3. Indicated air-

speed or Cali-
brated airspeed.

50 KIAS or min-

imum value to 
Max V

so

to 1.2 

V. 

D

.

±

5% and 

±

3% ....

1 ........................

1 kt ....................

Data should be obtained 

from the air data computer 
when practicable. 

4. Heading (Pri-

mary flight crew 
reference).

0–360

° 

and Dis-

crete ‘‘true’’ or 
‘‘mag’’.

±

2

°

.....................

1 ........................

0.5

°

....................

When true or magnetic head-

ing can be selected as the 
primary heading reference, 
a discrete indicating selec-
tion must be recorded. 

5. Normal accel-

eration 
(vertical)

9

.

¥

3g to + 6g ......

±

1% of max 

range exclud-
ing datum 
error of 

±

5%.

0.125 .................

0.004g.

6. Pitch Attitude ..

±

75

°

...................

±

2

°

.....................

1 or 0.25 for air-

planes oper-
ated under 
§ 121.344(f).

0.5

°

....................

A sampling rate of 0.25 is 

recommended. 

7. Roll attitude

2

...

±

180

°

.................

±

2

°

.....................

1 or 0.5 for air-

planes oper-
ated under 
§ 121.344(f).

0.5 .....................

A sampling rate of 0.5 is rec-

ommended. 

background image

311 

Federal Aviation Administration, DOT 

Pt. 121, App. M 

The recorded values must meet the designated range, resolution and accuracy requirements during static and dynamic condi-

tions. Dynamic condition means the parameter is experiencing change at the maximum rate attainable, including the maximum 
rate of reversal. All data recorded must be correlated in time to within one second. 

Parameters 

Range 

Accuracy (sensor 

input) 

Seconds per 

sampling interval 

Resolution 

Remarks 

8. Manual Radio 

Transmitter 
Keying or CVR/ 
DFDR synchro-
nization ref-
erence.

On-Off (Discrete) 
None 

...........................

1 ........................

...........................

Preferably each crew mem-

ber but one discrete ac-
ceptable for all trans-
mission provided the CVR/ 
FDR system complies with 
TSO C124a CVR synchro-
nization requirements 
(paragraph 4.2.1 ED–55). 

9. Thrust/power 

on each en-
gine—primary 
flight crew ref-
erence.

Full range for-

ward.

±

2% ...................

1 (per engine) ...

0.3% of full 

range.

Sufficient parameters (e.g. 

EPR, N1 or Torque, NP) 
as appropriate to the par-
ticular engine being re-
corded to determine power 
in forward and reverse 
thrust, including potential 
overspeed condition. 

10. Autopilot En-

gagement.

Discrete ‘‘on’’ or 

‘‘off’’.

...........................

1 ........................

...........................

11. Longitudinal 

Acceleration.

±

1g ....................

±

1.5% max. 

range exclud-
ing datum 
error of 

±

5%.

0.25 ...................

0.004g ...............

12a. Pitch con-

trol(s) position 
(nonfly-by-wire 
systems).

18

 

Full Range .........

±

2

° 

unless high-

er accuracy 
uniquely re-
quired.

0.5 or 0.25 for 

airplanes oper-
ated under 
§ 121.344(f).

0.5% of full 

range.

For airplanes that have a 

flight control breakaway 
capability that allows either 
pilot to operate the controls 
independently, record both 
control inputs. The control 
inputs may be sampled al-
ternately once per second 
to produce the sampling in-
terval of 0.5 or 0.25, as ap-
plicable. 

12b. Pitch con-

trol(s) position 
(fly-by-wire sys-
tems).

318

 

Full Range .........

±

2

° 

unless high-

er accuracy 
uniquely re-
quired.

0.5 or 0.25 for 

airplanes oper-
ated under 
§ 121.344(f).

0.2% of full 

range.

13a. Lateral con-

trol position(s) 
(nonfly-by- 
wire).

18

 

Full Range .........

±

2

° 

unless high-

er accuracy 
uniquely re-
quired.

0.5 or 0.25 for 

airplanes oper-
ated under 
§ 121.344(f).

0.2% of full 

range.

For airplanes that have a 

flight control breakaway 
capability that allows either 
pilot to operate the controls 
independently, record both 
control inputs. The control 
inputs may be sampled al-
ternately once per second 
to produce the sampling in-
terval of 0.5 or 0.25, as ap-
plicable. 

13b. Lateral con-

trol position(s) 
(fly-by-wire).

418

 

Full Range .........

±

2

° 

unless high-

er accuracy 
uniquely re-
quired.

0.5 or 0.25 for 

airplanes oper-
ated under 
§ 121.344(f).

0.2% of full 

range..

14a. Yaw control 

position(s) 
(nonfly-by- 
wire).

518

 

Full Range .........

±

2

° 

unless high-

er accuracy 
uniquely re-
quired.

0.5 .....................

0.3% of full 

range.

For airplanes that have a 

flight control breakaway 
capability that allows either 
pilot to operate the controls 
independently, record both 
control inputs. The control 
inputs may be sampled al-
ternately once per second 
to produce the sampling in-
terval of 0.5. 

14b. Yaw control 

position(s) (fly- 
by-wire).

18

 

Full Range .........

±

2

° 

unless high-

er accuracy 
uniquely re-
quired.

0.5 .....................

0.2% of full 

range.

background image

312 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. M 

The recorded values must meet the designated range, resolution and accuracy requirements during static and dynamic condi-

tions. Dynamic condition means the parameter is experiencing change at the maximum rate attainable, including the maximum 
rate of reversal. All data recorded must be correlated in time to within one second. 

Parameters 

Range 

Accuracy (sensor 

input) 

Seconds per 

sampling interval 

Resolution 

Remarks 

15. Pitch control 

surface(s) posi-
tion.

618

 

Full Range .........

±

2

° 

unless high-

er accuracy 
uniquely re-
quired.

0.5 or 0.25 for 

airplanes oper-
ated under 
§ 121.344(f).

0.3% of full 

range.

For airplanes fitted with mul-

tiple or split surfaces, a 
suitable combination of in-
puts is acceptable in lieu of 
recording each surface 
separately. The control 
surfaces may be sampled 
alternately once per sec-
ond to produce the sam-
pling interval of 0.5 or 
0.25, as applicable. 

16. Lateral control 

surface(s) posi-
tion.

718

 

Full Range .........

±

2

° 

unless high-

er accuracy 
uniquely re-
quired.

0.5 or 0.25 for 

airplanes oper-
ated under 
§ 121.344(f).

0.3% of full 

range.

A suitable combination of 

surface position sensors is 
acceptable in lieu of re-
cording each surface sepa-
rately. The control surfaces 
may be sampled alter-
nately to produce the sam-
pling interval of 0.5 or 
0.25, as applicable. 

17. Yaw control 

surface(s) posi-
tion.

818

 

Full Range .........

±

2

° 

unless high-

er accuracy 
uniquely re-
quired.

0.5 .....................

0.2% of full 

range.

For airplanes with multiple or 

split surfaces, a suitable 
combination of surface po-
sition sensors is accept-
able in lieu of recording 
each surface separately. 
The control surfaces may 
be sampled alternately to 
produce the sampling inter-
val of 0.5. 

18. Lateral Accel-

eration.

±

1g ....................

±

1.5% max. 

range exclud-
ing datum 
error of 

±

5%.

0.25 ...................

0.004g 

19. Pitch Trim 

Surface Posi-
tion.

Full Range .........

±

3

° 

Unless High-

er Accuracy 
Uniquely Re-
quired.

1 ........................

0.6% of full 

range.

20. Trailing Edge 

Flap or Cockpit 
Control Selec-
tion.

10

.

Full Range or 

Each Position 
(discrete).

±

3

° 

or as Pilot’s 

indicator.

2 ........................

0.5% of full 

range.

Flap position and cockpit 

control may each be sam-
pled at 4 second intervals, 
to give a data point every 
2 seconds. 

21. Leading Edge 

Flap or Cockpit 
Control Selec-
tion.

11

.

Full Range or 

Each Discrete 
Position.

±

3

° 

or as Pilot’s 

indicator and 
sufficient to 
determine 
each discrete 
position.

2 ........................

0.5% of full 

range.

Left and right sides, or flap 

position and cockpit control 
may each be sampled at 4 
second intervals, so as to 
give a data point every 2 
seconds. 

22. Each Thrust 

Reverser Posi-
tion (or equiva-
lent for pro-
peller airplane).

Stowed, In Tran-

sit, and Re-
verse (Dis-
crete).

...........................

1 (per engine) ...

...........................

Turbo-jet—2 discretes enable 

the 3 states to be deter-
mined. 

Turbo-prop—discrete. 

23. Ground spoil-

er position or 
brake selec-
tion

12

.

Full range or 

each position 
(discrete).

±

2

° 

Unless high-

er accuracy 
uniquely re-
quired.

1 or 0.5 for air-

planes oper-
ated under 
§ 121.344(f).

0.5% of full 

range.

24. Outside Air 

Temperature or 
Total Air Tem-
perature.

13

.

¥

50 

°

C to + 90 

°

C.

±

°

C .................

2 ........................

0.3 

°

C ................

25. Autopilot/ 

Autothrottle/ 
AFCS Mode 
and Engage-
ment Status.

A suitable com-

bination of 
discretes.

...........................

1 ........................

...........................

Discretes should show which 

systems are engaged and 
which primary modes are 
controlling the flight path 
and speed of the aircraft. 

background image

313 

Federal Aviation Administration, DOT 

Pt. 121, App. M 

The recorded values must meet the designated range, resolution and accuracy requirements during static and dynamic condi-

tions. Dynamic condition means the parameter is experiencing change at the maximum rate attainable, including the maximum 
rate of reversal. All data recorded must be correlated in time to within one second. 

Parameters 

Range 

Accuracy (sensor 

input) 

Seconds per 

sampling interval 

Resolution 

Remarks 

26. Radio Alti-

tude

14

.

¥

20 ft to 2,500 
ft.

±

2 ft or 

±

3% 

whichever is 
greater below 
500 ft and 

±

5% above 

500 ft.

1 ........................

1 ft + 5% above 

500 ft.

For autoland/category 3 op-

erations. Each radio altim-
eter should be recorded, 
but arranged so that at 
least one is recorded each 
second. 

27. Localizer De-

viation, MLS 
Azimuth, or 
GPS Latitude 
Deviation.

±

400 Microamps 

or available 
sensor range 
as installed.

±

62

° 

As installed 

±

3% 

recommended.

1 ........................

0.3% of full 

range.

For autoland/category 3 op-

erations. Each system 
should be recorded but ar-
ranged so that at least one 
is recorded each second. It 
is not necessary to record 
ILS and MLS at the same 
time, only the approach aid 
in use need be recorded. 

28. Glideslope 

Deviation, MLS 
Elevation, or 
GPS Vertical 
Deviation.

±

400 Microamps 

or available 
sensor range 
as installed 

0.9 to + 30

° 

As installed + 

/3

¥

3% rec-

ommended.

1 ........................

0.3% of full 

range.

For autoland/category 3 op-

erations. Each system 
should be recorded but ar-
ranged so that at least one 
is recorded each second. It 
is not necessary to record 
ILS and MLS at the same 
time, only the approach aid 
in use need be recorded. 

29. Marker Bea-

con Passage.

Discrete ‘‘on’’ or 

‘‘off’’.

...........................

1 ........................

...........................

A single discrete is accept-

able for all markers. 

30. Master Warn-

ing.

Discrete .............

...........................

1 ........................

...........................

Record the master warning 

and record each ‘‘red’’ 
warning that cannot be de-
termined from other pa-
rameters or from the cock-
pit voice recorder. 

31. Air/ground 

sensor (primary 
airplane system 
reference nose 
or main gear).

Discrete ‘‘air’’ or 

‘‘ground’’.

...........................

1 (0.25 rec-

ommended).

32. Angle of At-

tack (If meas-
ured directly).

As installed ........

As installed ........

2 or 0.5 for air-

planes oper-
ated under 
§ 121.344(f).

0.3% of full 

range.

If left and right sensors are 

available, each may be re-
corded at 4 or 1 second in-
tervals, as appropriate, so 
as to give a data point at 2 
seconds or 0.5 second, as 
required. 

33. Hydraulic 

Pressure Low, 
Each System.

Discrete or avail-

able sensor 
range, ‘‘low’’ or 
‘‘normal’’.

±

5% ...................

2 ........................

0.5% of full 

range.

34. Groundspeed 

As Installed .......

Most Accurate 

Systems In-
stalled.

1 ........................

0.2% of full 

range.

35. GPWS 

(ground prox-
imity warning 
system).

Discrete ‘‘warn-

ing’’ or ‘‘off’’.

...........................

1 ........................

...........................

A suitable combination of 

discretes unless recorder 
capacity is limited in which 
case a single discrete for 
all modes is acceptable. 

36. Landing Gear 

Position or 
Landing gear 
cockpit control 
selection.

Discrete .............

...........................

4 ........................

...........................

A suitable combination of 

discretes should be re-
corded. 

37. Drift Angle.

15

 

As installed ........

As installed ........

4 ........................

0.1

°

....................

38. Wind Speed 

and Direction.

As installed ........

As installed ........

4 ........................

1 knot, and 1.0

°

.

background image

314 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. M 

The recorded values must meet the designated range, resolution and accuracy requirements during static and dynamic condi-

tions. Dynamic condition means the parameter is experiencing change at the maximum rate attainable, including the maximum 
rate of reversal. All data recorded must be correlated in time to within one second. 

Parameters 

Range 

Accuracy (sensor 

input) 

Seconds per 

sampling interval 

Resolution 

Remarks 

39. Latitude and 

Longitude.

As installed ........

As installed ........

4 ........................

0.002

°

, or as in-

stalled.

Provided by the Primary 

Navigation System Ref-
erence. Where capacity 
permits Latitude/longitude 
resolution should be 
0.0002

°

40. Stick shaker 

and pusher acti-
vation.

Discrete(s) ‘‘on’’ 

or ‘‘off’’.

...........................

1 ........................

...........................

A suitable combination of 

discretes to determine acti-
vation. 

41. Windshear 

Detection.

Discrete ‘‘warn-

ing’’ or ‘‘off’’.

...........................

1.

42. Throttle/power 

Leverl posi-
tion.

16

.

Full Range .........

±

2% ...................

1 for each lever

2% of full range

For airplanes with non-me-

chanically linked cockpit 
engine controls. 

43. Additional En-

gine Param-
eters.

As installed ........

As installed ........

Each engine 

each second.

2% of full range

Where capacity permits, the 

preferred priority is indi-
cated vibration level, N2, 
EGT, Fuel Flow, Fuel Cut- 
off lever position and N3, 
unless engine manufac-
turer recommends other-
wise. 

44. Traffic Alert 

and Collision 
Avoidance Sys-
tem (TCAS).

Discretes ...........

As installed ........

1 ........................

...........................

A suitable combination of 

discretes should be re-
corded to determine the 
status of—Combined Con-
trol, Vertical Control, Up 
Advisory, and Down Advi-
sory. (ref. ARINC Char-
acteristic 735 Attachment 
6E, TCAS VERTICAL RA 
DATA OUTPUT WORD.) 

45. DME 1 and 2 

Distance.

0–200 NM .........

As installed ........

4 ........................

1 NM .................

1 mile 

46. Nav 1 and 2 

Selected Fre-
quency.

Full Range .........

As installed ........

4 ........................

...........................

Sufficient to determine se-

lected frequency 

47. Selected baro-

metric setting.

Full Range .........

±

5% ...................

(1 per 64 sec.) ..

0.2% of full 

range 

48. Selected Alti-

tude.

Full Range .........

±

5% ...................

1 ........................

100 ft 

49. Selected 

speed.

Full Range .........

±

5% ...................

1 ........................

1 knot 

50. Selected 

Mach.

Full Range .........

±

5% ...................

1 ........................

.01 

51. Selected 

vertical speed.

Full Range .........

±

5% ...................

1 ........................

100 ft/min 

52. Selected 

heading.

Full Range .........

±

5% ...................

1 ........................

1

° 

53. Selected flight 

path.

Full Range .........

±

5% ...................

1 ........................

1

° 

54. Selected deci-

sion height.

Full Range .........

±

5% ...................

64 ......................

1 ft 

55. EFIS display 

format.

Discrete(s) .........

...........................

4 ........................

...........................

Discretes should show the 

display system status (e.g., 
off, normal, fail, composite, 
sector, plan, nav aids, 
weather radar, range, 
copy. 

56. Multi-function/ 

Engine Alerts 
Display format.

Discrete(s) .........

...........................

4 ........................

...........................

Discretes should show the 

display system status (e.g., 
off, normal, fail, and the 
identity of display pages 
for emergency procedures, 
need not be recorded. 

57. Thrust com-

mand.

17

.

Full Range .........

±

2% ...................

2 ........................

2% of full range.

58. Thrust target

Full Range .........

±

2% ...................

4 ........................

2% of full range 

background image

315 

Federal Aviation Administration, DOT 

Pt. 121, App. M 

The recorded values must meet the designated range, resolution and accuracy requirements during static and dynamic condi-

tions. Dynamic condition means the parameter is experiencing change at the maximum rate attainable, including the maximum 
rate of reversal. All data recorded must be correlated in time to within one second. 

Parameters 

Range 

Accuracy (sensor 

input) 

Seconds per 

sampling interval 

Resolution 

Remarks 

59. Fuel quantity 

in CG trim tank.

Full Range .........

±

5% ...................

(1 per 64 sec.) ..

1% of full range 

60. Primary Navi-

gation System 
Reference.

Discrete GPS, 

INS, VOR/ 
DME, MLS, 
Localizer 
Glideslope.

...........................

4 ........................

...........................

A suitable combination of 

discretes to determine the 
Primary Navigation System 
reference. 

61. Ice Detection

Discrete ‘‘ice’’ or 

‘‘no ice’’.

...........................

62. Engine warn-

ing each engine 
vibration.

Discrete .............

...........................

63. Engine warn-

ing each engine 
over temp.

Discrete .............

...........................

64. Engine warn-

ing each engine 
oil pressure low.

Discrete .............

...........................

65. Engine warn-

ing each engine 
over speed.

Discrete .............

...........................

66. Yaw Trim Sur-

face Position.

Full Range .........

±

3% Unless 

Higher Accu-
racy Uniquely 
Required.

2 ........................

0.3% of full 

range.

67. Roll Trim Sur-

face Position.

Full Range .........

±

3% Unless 

Higher Accu-
racy Uniquely 
Required.

2 ........................

0.3% of full 

range.

68. Brake Pres-

sure (left and 
right).

As installed ........

±

5% ...................

1 ........................

...........................

To determine braking effort 

applied by pilots or by 
autobrakes. 

69. Brake Pedal 

Application (left 
and right).

Discrete or Ana-

log ‘‘applied’’ 
or ‘‘off’’.

±

5% (Analog) ....

1 ........................

...........................

To determine braking applied 

by pilots. 

70. Yaw or side-

slip angle.

Full Range .........

±

5% ...................

1 ........................

0.5

° 

71. Engine bleed 

valve position.

Discrete ‘‘open’’ 

or ‘‘closed’’.

...........................

72. De-icing or 

anti-icing sys-
tem selection.

Discrete ‘‘on’’ or 

‘‘off’’.

...........................

73. Computed 

center of gravity.

Full Range .........

±

5% ...................

(1 per 64 sec.) ..

1% of full range 

74. AC electrical 

bus status.

Discrete ‘‘power’’ 

or ‘‘off’’.

...........................

4 ........................

...........................

Each bus. 

75. DC electrical 

bus status.

Discrete ‘‘power’’ 

or ‘‘off’’.

...........................

4 ........................

...........................

Each bus. 

76 APU bleed 

valve position.

Discrete ‘‘open’’ 

or ‘‘closed’’.

...........................

77. Hydraulic 

Pressure (each 
system).

Full range ..........

±

5% ...................

2 ........................

100 psi 

78. Loss of cabin 

pressure.

Discrete ‘‘loss’’ 

or ‘‘normal’’.

...........................

1.

79. Computer fail-

ure (critical 
flight and en-
gine control 
systems).

Discrete ‘‘fail’’ or 

‘‘normal’’.

...........................

4.

80. Heads-up dis-

play (when an 
information 
source is in-
stalled).

Discrete(s) ‘‘on’’ 

or ‘‘off’’.

...........................

background image

316 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. M 

The recorded values must meet the designated range, resolution and accuracy requirements during static and dynamic condi-

tions. Dynamic condition means the parameter is experiencing change at the maximum rate attainable, including the maximum 
rate of reversal. All data recorded must be correlated in time to within one second. 

Parameters 

Range 

Accuracy (sensor 

input) 

Seconds per 

sampling interval 

Resolution 

Remarks 

81. Para-visual 

display (when 
an information 
source is in-
stalled).

Discrete(s) ‘‘on’’ 

or ‘‘off’’.

82. Cockpit trim 

control input po-
sition—pitch.

Full Range .........

±

5% ...................

1 ........................

0.2% of full 

range.

Where mechanical means for 

control inputs are not avail-
able, cockpit display trim 
positions should be re-
corded. 

83. Cockpit trim 

control input po-
sition—roll.

Full Range .........

±

5% ...................

1 ........................

0.7% of full 

range.

Where mechanical means for 

control inputs are not avail-
able, cockpit display trim 
position should be re-
corded. 

84. Cockpit trim 

control input po-
sition—yaw.

Full range ..........

±

5% ...................

1 ........................

0.3% of full 

range.

Where mechanical means for 

control input are not avail-
able, cockpit display trim 
positions should be re-
corded. 

85. Trailing edge 

flap and cockpit 
flap control po-
sition.

Full Range .........

±

5% ...................

2 ........................

0.5% of full 

range.

Trailing edge flaps and cock-

pit flap control position 
may each be sampled al-
ternately at 4 second inter-
vals to provide a sample 
each 0.5 second. 

86. Leading edge 

flap and cockpit 
flap control po-
sition.

Full Range or 

Discrete.

±

5% ...................

1 ........................

0.5% of full 

range 

87. Ground spoil-

er position and 
speed brake se-
lection.

Full range or dis-

crete.

±

5% ...................

0.5 .....................

0.3% of full 

range.

88. All cockpit 

flight control 
input forces 
(control wheel, 
control column, 
rudder 
pedal)

1819

.

Full range ..........
Control wheel 

±

70 lbs.

Control column 

±

85 lbs.

Rudder pedal 

±

165 lbs.

±

5% ...................

1 ........................

0.3% of full 

range.

For fly-by-wire flight control 

systems, where flight con-
trol surface position is a 
function of the displace-
ment of the control input 
device only, it is not nec-
essary to record this pa-
rameter. For airplanes that 
have a flight control break 
away capability that allows 
either pilot to operate the 
control independently, 
record both control force 
inputs. The control force 
inputs may be sampled al-
ternately once per 2 sec-
onds to produce the sam-
pling interval of 1. 

89. Yaw damper 

status.

Discrete (on/off)

0.5 .....................

90. Yaw damper 

command.

Full range ..........

As installed ........

0.5 .....................

1% of full range.

91. Standby rud-

der valve status.

Discrete .............

0.5.

1

For A300 B2/B4 airplanes, resolution = 6 seconds. 

2

For A330/A340 series airplanes, resolution = 0.703

°

3

For A318/A319/A320/A321 series airplanes, resolution = 0.275% (0.088

°

>0.064

°

). 

For A330/A340 series airplanes, resolution = 2.20%(0.703

°

>0.064

°

). 

4

For A318/A319/A320/A321 series airplanes, resolution = 0.22% (0.088

°

>0.080

°

). 

For A330/A340 series airplanes, resolution = 1.76% (0.703

°

>0.080

°

). 

5

For A330/A340 series airplanes, resolution = 1.18% (0.703

° 

>0.120

°

). 

For A330/A340 series airplanes, seconds per sampling interval = 1. 

6

For A330/A340 series airplanes, resolution = 0.783% (0.352

°

>0.090

°

). 

7

For A330/A340 series airplanes, aileron resolution = 0.704% (0.352

°

>0.100

°

). For A330/A340 series airplanes, spoiler resolu-

tion = 1.406% (0.703

°

>0.100

°

). 

8

For A330/A340 series airplanes, resolution = 0.30% (0.176

°

>0.12

°

). 

For A330/A340 series airplanes, seconds per sampling interval = 1. 

background image

317 

Federal Aviation Administration, DOT 

Pt. 121, App. O 

9

For B–717 series airplanes, resolution = .005g. For Dassault F900C/F900EX airplanes, resolution = .007g. 

10

For A330/A340 series airplanes, resolution = 1.05% (0.250

°

>0.120

°

). 

11

For A330/A340 series airplanes, resolution = 1.05% (0.250

°

>0.120

°

). For A300 B2/B4 series airplanes, resolution = 0.92% 

(0.230

°

>0.125

°

). 

12

For A330/A340 series airplanes, spoiler resolution = 1.406% (0.703

°

>0.100

°

). 

13

For A330/A340 series airplanes, resolution = 0.5

°

C. 

14

For Dassault F900C/F900EX airplanes, Radio altitude resolution = 1.25 ft. 

15

For A330/A340 series airplanes, resolution = 0.352 degrees. 

16

For A318/A319/A320/A321 series airplanes, resolution = 4.32%. For A330/A340 series airplanes, resolution is 3.27% of full 

range for throttle lever angle (TLA); for reverse thrust, reverse throttle lever angle (RLA) resolution is nonlinear over the active 
reverse thrust range, which is 51.54 degrees to 96.14 degrees. The resolved element is 2.8 degrees uniformly over the entire ac-
tive reverse thrust range, or 2.9% of the full range value of 96.14 degrees. 

17

For A318/A319/A320/A321 series airplanes, with IAE engines, resolution = 2.58%. 

18

For all aircraft manufactured on or after December 6, 2010, the seconds per sampling interval is 0.125. Each input must be 

recorded at this rate. Alternately sampling inputs (interleaving) to meet this sampling interval is prohibited. 

19

For 737 model airplanes manufactured between August 19, 2000 and April 6, 2010: the seconds per sampling interval is 0.5 

per control input; the remarks regarding the sampling rate do not apply; a single control wheel force transducer installed on the 
left cable control is acceptable provided the left and right control wheel positions also are recorded. 

[Doc. No. 28109, 62 FR 38382, July 17, 1997; 62 FR 48135, Sept. 12, 1997, as amended by Amdt. 
121–271, 64 FR 46120, Aug. 24, 1999; Amdt. 121–278, 65 FR 51745, Aug. 24, 2000; 65 FR 81733, Dec. 
27, 2000; Amdt. 121–292, 67 FR 54323, Aug. 21, 2002; Amdt. 121–300, 68 FR 42936, July 18, 2003; 68 
FR 50069, Aug. 20, 2003; 68 FR 53877, Sept. 15, 2003; 70 FR 41134, July 18, 2005; Amdt. 125–54, 73 
FR 12566, Mar. 7, 2008; Amdt. 121–338, 73 FR 12566, Mar. 7, 2008; Amdt. 121–342, 73 FR 73179, Dec. 
2, 2008; Amdt. 121–349, 75 FR 17046, Apr. 5, 2010; Amdt. 121–347, 75 FR 7356, Feb. 19, 2010; Amdt. 
121–364, 78 FR 39971, July 3, 2013; Docket FAA–2017–0733, Amdt. 121–379, 82 FR 34398, July 25, 
2017] 

A

PPENDIX

TO

P

ART

121 [R

ESERVED

A

PPENDIX

TO

P

ART

121—H

AZARDOUS

 

M

ATERIALS

T

RAINING

R

EQUIRE

-

MENTS

F

OR

C

ERTIFICATE

H

OLDERS

 

This appendix prescribes the requirements 

for hazardous materials training under part 
121, subpart Z, and part 135, subpart K of this 
chapter. The training requirements for var-
ious categories of persons are defined by job 
function or responsibility. An ‘‘X’’ in a box 
under a category of persons indicates that 
the specified category must receive the 
noted training. All training requirements 
apply to direct supervisors as well as to per-
sons actually performing the job function. 
Training requirements for certificate holders 

authorized in their operations specifications 
to transport hazardous materials (will-carry) 
are prescribed in Table 1. Those certificate 
holders with a prohibition in their oper-
ations specifications against carrying or 
handling hazardous materials (will-not- 
carry) must follow the curriculum prescribed 
in Table 2. The method of delivering the 
training will be determined by the certifi-
cate holder. The certificate holder is respon-
sible for providing a method (may include 
email, telecommunication, etc.) to answer 
all questions prior to testing regardless of 
the method of instruction. The certificate 
holder must certify that a test has been com-
pleted satisfactorily to verify understanding 
of the regulations and requirements. 

T

ABLE

1—O

PERATORS

T

HAT

T

RANSPORT

H

AZARDOUS

M

ATERIAL

—W

ILL

-C

ARRY

C

ERTIFICATE

 

H

OLDERS

 

Aspects of transport of 

hazardous materials by 

air with which they must 

be familiar, as a min-

imum 

(See note 1) 

Shippers 

(See Note 2) 

Will-carry 

Operators and 

ground-han-

dling agent’s 

staff accepting 

hazardous ma-

terials 

(See Note 3) 

Will-carry 

Operators and 

ground-han-
dling agents 

staff respon-

sible for the 

handling, stor-

age, and load-

ing of cargo 

and baggage 

Will-carry 

Passenger- 

handling staff 

Will-carry 

Flight crew 

members and 

load planners 

Will-carry 

Crew mem-

bers 

(other than 

flight crew 
members) 

Will-carry 

General philosophy .......

Limitations .....................

General requirements 

for shippers ................

........................

........................

........................

........................

Classification .................

........................

........................

........................

........................

List of hazardous mate-

rials ............................

........................

........................

........................

General packing require-

ments .........................

........................

........................

........................

........................

Labeling and marking ....

background image

318 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. O 

T

ABLE

1—O

PERATORS

T

HAT

T

RANSPORT

H

AZARDOUS

M

ATERIAL

—W

ILL

-C

ARRY

C

ERTIFICATE

 

H

OLDERS

—Continued 

Aspects of transport of 

hazardous materials by 

air with which they must 

be familiar, as a min-

imum 

(See note 1) 

Shippers 

(See Note 2) 

Will-carry 

Operators and 

ground-han-

dling agent’s 

staff accepting 

hazardous ma-

terials 

(See Note 3) 

Will-carry 

Operators and 

ground-han-
dling agents 

staff respon-

sible for the 

handling, stor-

age, and load-

ing of cargo 

and baggage 

Will-carry 

Passenger- 

handling staff 

Will-carry 

Flight crew 

members and 

load planners 

Will-carry 

Crew mem-

bers 

(other than 

flight crew 
members) 

Will-carry 

Hazardous materials 

transport document 
and other relevant 
documentation ...........

........................

........................

........................

........................

Acceptance procedures 

........................

........................

........................

........................

........................

Recognition of 

undeclared hazardous 
materials ....................

Storage and loading 

procedures .................

........................

........................

........................

Pilots’ notification ..........

........................

........................

........................

Provisions for pas-

sengers and crew ......

........................

Emergency procedures

Note 1. Depending on the responsibilities of the person, the aspects of training to be covered may vary from those shown in 

the table. 

Note 2. When a person offers a consignment of hazmat, including COMAT, for or on behalf of the certificate holder, then the 

person must be trained in the certificate holder’s training program and comply with shipper responsibilities and training. If offering 
goods on another certificate holder’s equipment, the person must be trained in compliance with the training requirements in 49 
CFR. All shippers of hazmat must be trained under 49 CFR. The shipper functions in 49 CFR mirror the training aspects that 
must be covered for any shipper offering hazmat for transport. 

Note 3. When an operator, its subsidiary, or an agent of the operator is undertaking the responsibilities of acceptance staff, 

such as the passenger handling staff accepting small parcel cargo, the certificate holder, its subsidy, or the agent must be 
trained in the certificate holder’s training program and comply with the acceptance staff training requirements. 

T

ABLE

2—O

PERATORS

T

HAT

D

O

N

OT

T

RANSPORT

H

AZARDOUS

M

ATERIALS

—W

ILL

-N

OT

-C

ARRY

 

C

ERTIFICATE

H

OLDERS

 

Aspects of transport of 

hazardous materials by 

air with which they must 

be familiar, as a min-

imum 

(See Note 1) 

Shippers 

(See Note 2) 

Will-not-carry 

Operators and 

ground-han-

dling agent’s 

staff accepting 

cargo other 

than haz-

ardous mate-

rials 

(See Note 3) 

Will-not-carry 

Operators and 

ground-han-
dling agents 

staff respon-

sible for the 

handling, stor-

age, and load-

ing of cargo 

and baggage 
Will-not-carry 

Passenger- 

handling staff 

Will-not-carry 

Flight crew 

members and 

load planners 

Will-not-carry 

Crew mem-

bers (other 

than flight 

crew mem-

bers) 

Will-not-carry 

General philosophy .......

Limitations .....................

General requirements 

for shippers ................

........................

........................

........................

........................

........................

Classification .................

........................

........................

........................

........................

........................

List of hazardous mate-

rials ............................

........................

........................

........................

........................

........................

General packing require-

ments .........................

........................

........................

........................

........................

........................

Labeling and marking ....

Hazardous materials 

transport document 
and other relevant 
documentation ...........

........................

........................

........................

........................

Acceptance procedures 

........................

........................

........................

........................

........................

........................

Recognition of 

undeclared hazardous 
materials ....................

Storage and loading 

procedures .................

........................

........................

........................

........................

........................

........................

Pilots’ notification ..........

........................

........................

........................

........................

........................

........................

Provisions for pas-

sengers and Crew .....

........................

background image

319 

Federal Aviation Administration, DOT 

Pt. 121, App. P 

T

ABLE

2—O

PERATORS

T

HAT

D

O

N

OT

T

RANSPORT

H

AZARDOUS

M

ATERIALS

—W

ILL

-N

OT

-C

ARRY

 

C

ERTIFICATE

H

OLDERS

—Continued 

Aspects of transport of 

hazardous materials by 

air with which they must 

be familiar, as a min-

imum 

(See Note 1) 

Shippers 

(See Note 2) 

Will-not-carry 

Operators and 

ground-han-

dling agent’s 

staff accepting 

cargo other 

than haz-

ardous mate-

rials 

(See Note 3) 

Will-not-carry 

Operators and 

ground-han-
dling agents 

staff respon-

sible for the 

handling, stor-

age, and load-

ing of cargo 

and baggage 
Will-not-carry 

Passenger- 

handling staff 

Will-not-carry 

Flight crew 

members and 

load planners 

Will-not-carry 

Crew mem-

bers (other 

than flight 

crew mem-

bers) 

Will-not-carry 

Emergency procedures

Note 1—Depending on the responsibilities of the person, the aspects of training to be covered may vary from those shown in 

the table. 

Note 2—When a person offers a consignment of hazmat, including COMAT, for air transport for or on behalf of the certificate 

holder, then that person must be properly trained. All shippers of hazmat must be trained under 49 CFR. The shipper functions 
in 49 CFR mirror the training aspects that must be covered for any shipper, including a will-not-carry certificate holder offering 
dangerous goods for transport, with the exception of recognition training. Recognition training is a separate FAA requirement in 
the certificate holder’s training program. 

Note 3—When an operator, its subsidiary, or an agent of the operator is undertaking the responsibilities of acceptance staff, 

such as the passenger handling staff accepting small parcel cargo, the certificate holder, its subsidiary, or the agent must be 
trained in the certificate holder’s training program and comply with the acceptance staff training requirements. 

[Doc. No. FAA–2003–15085, 70 FR 58825, Oct. 7, 2005, as amended by Amdt. 121–318, 70 FR 75396, 
Dec. 20, 2005] 

A

PPENDIX

TO

P

ART

121—R

EQUIRE

-

MENTS FOR

ETOPS 

AND

P

OLAR

O

P

-

ERATIONS

 

The FAA approves ETOPS in accordance 

with the requirements and limitations in 
this appendix. 

Section I. 

ETOPS Approvals: Airplanes with 

Two engines. 

(a) 

Propulsion system reliability for ETOPS. 

(1) Before the FAA grants ETOPS oper-
ational approval, the operator must be able 
to demonstrate the ability to achieve and 
maintain the level of propulsion system reli-
ability, if any, that is required by § 21.4(b)(2) 
of this chapter for the ETOPS-approved air-
plane-engine combination to be used. 

(2) Following ETOPS operational approval, 

the operator must monitor the propulsion 
system reliability for the airplane-engine 
combination used in ETOPS, and take action 
as required by § 121.374(i) for the specified 
IFSD rates. 

(b) 

75 Minutes ETOPS

—(1) 

Caribbean/Western 

Atlantic Area. 

The FAA grants approvals to 

conduct 

ETOPS with maximum diversion times up 

to 75 minutes on Western Atlantic/Caribbean 
area routes as follows: 

(i) The FAA reviews the airplane-engine 

combination to ensure the absence of factors 
that could prevent safe operations. The air-
plane-engine combination need not be type- 
design-approved for ETOPS; however, it 
must have sufficient favorable experience to 
demonstrate to the Administrator a level of 
reliability appropriate for 75-minute ETOPS. 

(ii) The certificate holder must comply 

with the requirements of § 121.633 for time- 
limited system planning. 

(iii) The certificate holder must operate in 

accordance with the ETOPS authority as 
contained in its operations specifications. 

(iv) The certificate holder must comply 

with the maintenance program requirements 
of § 121.374, except that a pre-departure serv-
ice check before departure of the return 
flight is not required. 

(2) 

Other Areas. 

The FAA grants approvals 

to conduct ETOPS with maximum diversion 
times up to 75 minutes on other than West-
ern Atlantic/Caribbean area routes as fol-
lows: 

(i) The FAA reviews the airplane-engine 

combination to ensure the absence of factors 
that could prevent safe operations. The air-
plane-engine combination need not be type- 
design-approved for ETOPS; however, it 
must have sufficient favorable experience to 
demonstrate to the Administrator a level of 
reliability appropriate for 75-minute ETOPS. 

(ii) The certificate holder must comply 

with the requirements of § 121.633 for time- 
limited system planning. 

(iii) The certificate holder must operate in 

accordance with the ETOPS authority as 
contained in its operations specifications. 

(iv) The certificate holder must comply 

with the maintenance program requirements 
of § 121.374. 

(v) The certificate holder must comply 

with the MEL in its operations specifications 
for 120-minute ETOPS. 

(c) 

90-minutes ETOPS (Micronesia). 

The FAA 

grants approvals to conduct ETOPS with 
maximum diversion times up to 90 minutes 
on Micronesian area routes as follows: 

(1) The airplane-engine combination must 

be type-design approved for ETOPS of at 
least 120-minutes. 

background image

320 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 121, App. P 

(2) The certificate holder must operate in 

accordance with the ETOPS authority as 
contained in its operations specifications. 

(3) The certificate holder must comply 

with the maintenance program requirements 
of § 121.374, except that a pre-departure serv-
ice check before departure of the return 
flight is not required. 

(4) The certificate holder must comply 

with the MEL requirements in its operations 
specifications for 120-minute ETOPS. 

(d) 

120-minute ETOPS. 

The FAA grants ap-

provals to conduct ETOPS with maximum 
diversion times up to 120 minutes as follows: 

(1) The airplane-engine combination must 

be type-design-approved for ETOPS of at 
least 120 minutes. 

(2) The certificate holder must operate in 

accordance with the ETOPS authority as 
contained in its operations specifications. 

(3) The certificate holder must comply 

with the maintenance program requirements 
of § 121.374. 

(4) The certificate holder must comply 

with the MEL requirements for 120-minute 
ETOPS. 

(e) 

138-Minute ETOPS. 

The FAA grants ap-

proval to conduct ETOPS with maximum di-
version times up to 138 minutes as follows: 

(1) 

Operators with 120-minute ETOPS ap-

proval. 

The FAA grants 138-minute ETOPS 

approval as an extension of an existing 120- 
minute ETOPS approval as follows: 

(i) The authority may be exercised only for 

specific flights for which the 120-minute di-
version time must be exceeded. 

(ii) For these flight-by-flight exceptions, 

the airplane-engine combination must be 
type-design-approved for ETOPS up to at 
least 120 minutes. The capability of the air-
plane’s time-limited systems may not be less 
than 138 minutes calculated in accordance 
with § 121.633. 

(iii) The certificate holder must operate in 

accordance with the ETOPS authority as 
contained in its operations specifications. 

(iv) The certificate holder must comply 

with the maintenance program requirements 
of § 121.374. 

(v) The certificate holder must comply 

with minimum equipment list (MEL) re-
quirements in its operations specifications 
for ‘‘beyond 120 minutes ETOPS’’. Operators 
without a ‘‘beyond 120-minute ETOPS’’ MEL 
may apply through their responsible Flight 
Standards office for a modified MEL which 
satisfies the master MEL policy for system/ 
component relief in ETOPS beyond 120 min-
utes. 

(vi) The certificate holder must conduct 

training for maintenance, dispatch, and 
flight crew personnel regarding differences 
between 138-minute ETOPS authority and its 
previously-approved 120-minute ETOPS au-
thority. 

(2) 

Operators with existing 180-minute ETOPS 

approval. 

The FAA grants approvals to con-

duct 138-minute ETOPS (without the limita-
tion in paragraph (e)(1)(i) of section I of this 
appendix) to certificate holders with existing 
180-minute ETOPS approval as follows: 

(i) The airplane-engine combination must 

be type-design-approved for ETOPS of at 
least 180 minutes. 

(ii) The certificate holder must operate in 

accordance with the ETOPS authority as 
contained in its operations specifications. 

(iii) The certificate holder must comply 

with the maintenance program requirements 
of § 121.374. 

(iv) The certificate holder must comply 

with the MEL requirements for ‘‘beyond 120 
minutes ETOPS.’’ 

(v) The certificate holder must conduct 

training for maintenance, dispatch and flight 
crew personnel for differences between 138- 
minute ETOPS diversion approval and its 
previously approved 180-minute ETOPS di-
version authority. 

(f) 

180-minute ETOPS. 

The FAA grants ap-

proval to conduct ETOPS with diversion 
times up to 180 minutes as follows: 

(1) For these operations the airplane-en-

gine combination must be type-design-ap-
proved for ETOPS of at least 180 minutes. 

(2) The certificate holder must operate in 

accordance with the ETOPS authority as 
contained in its operations specifications. 

(3) The certificate holder must comply 

with the maintenance program requirements 
of § 121.374. 

(4) The certificate holder must comply 

with the MEL requirements for ‘‘beyond 120 
minutes ETOPS.’’ 

(g) 

Greater than 180-minute ETOPS. 

The 

FAA grants approval to conduct ETOPS 
greater than 180 minutes. The following are 
requirements for all operations greater than 
180 minutes. 

(1) The FAA grants approval only to cer-

tificate holders with existing 180-minute 
ETOPS operating authority for the airplane- 
engine combination to be operated. 

(2) The certificate holder must have pre-

vious ETOPS experience satisfactory to the 
Administrator. 

(3) In selecting ETOPS Alternate Airports, 

the operator must make every effort to plan 
ETOPS with maximum diversion distances 
of 180 minutes or less, if possible. If condi-
tions necessitate using an ETOPS Alternate 
Airport beyond 180 minutes, the route may 
be flown only if the requirements for the spe-
cific operating area in paragraph (h) or (i) of 
section I of this appendix are met. 

(4) The certificate holder must inform the 

flight crew each time an airplane is proposed 
for dispatch for greater than 180 minutes and 
tell them why the route was selected. 

(5) In addition to the equipment specified 

in the certificate holder’s MEL for 180- 
minute ETOPS, the following systems must 
be operational for dispatch: 

(i) The fuel quantity indicating system. 

background image

321 

Federal Aviation Administration, DOT 

Pt. 121, App. P 

(ii) The APU (including electrical and 

pneumatic supply and operating to the 
APU’s designed capability). 

(iii) The auto throttle system. 
(iv) The communication system required 

by § 121.99(d) or § 121.122(c), as applicable. 

(v) One-engine-inoperative auto-land capa-

bility, if flight planning is predicated on its 
use. 

(6) The certificate holder must operate in 

accordance with the ETOPS authority as 
contained in its operations specifications. 

(7) The certificate holder must comply 

with the maintenance program requirements 
of § 121.374. 

(h) 

207-minute ETOPS in the North Pacific 

Area of Operations. 

(1) The FAA grants ap-

proval to conduct ETOPS with maximum di-
version times up to 207 minutes in the North 
Pacific Area of Operations as an extension to 
180-minute ETOPS authority to be used on 
an exception basis. This exception may be 
used only on a flight-by-flight basis when an 
ETOPS Alternate Airport is not available 
within 180 minutes for reasons such as polit-
ical or military concerns; volcanic activity; 
temporary airport conditions; and airport 
weather below dispatch requirements or 
other weather related events. 

(2) The nearest available ETOPS Alternate 

Airport within 207 minutes diversion time 
must be specified in the dispatch or flight re-
lease. 

(3) In conducting such a flight the certifi-

cate holder must consider Air Traffic Serv-
ice’s preferred track. 

(4) The airplane-engine combination must 

be type-design-approved for ETOPS of at 
least 180 minutes. The approved time for the 
airplane’s most limiting ETOPS significant 
system and most limiting cargo-fire suppres-
sion time for those cargo and baggage com-
partments required by regulation to have 
fire-suppression systems must be at least 222 
minutes. 

(5) The certificate holder must track how 

many times 207-minute authority is used. 

(i) 

240-minute ETOPS in the North Polar 

Area, in the area north of the NOPAC, and in 
the Pacific Ocean north of the equator. 

(1) The 

FAA grants approval to conduct 240-minute 
ETOPS authority with maximum diversion 
times in the North Polar Area, in the area 
north of the NOPAC area, and the Pacific 
Ocean area north of the equator as an exten-
sion to 180-minute ETOPS authority to be 
used on an exception basis. This exception 
may be used only on a flight-by-flight basis 
when an ETOPS Alternate Airport is not 
available within 180 minutes. In that case, 
the nearest available ETOPS Alternate Air-
port within 240 minutes diversion time must 
be specified in the dispatch or flight release. 

(2) This exception may be used in the 

North Polar Area and in the area north of 
NOPAC only in extreme conditions par-
ticular to these areas such as volcanic activ-

ity, extreme cold weather at en-route air-
ports, airport weather below dispatch re-
quirements, temporary airport conditions, 
and other weather related events. The cri-
teria used by the certificate holder to decide 
that extreme weather precludes using an air-
port must be established by the certificate 
holder, accepted by the FAA, and published 
in the certificate holder’s manual for the use 
of dispatchers and pilots. 

(3) This exception may be used in the Pa-

cific Ocean area north of the equator only 
for reasons such as political or military con-
cern, volcanic activity, airport weather 
below dispatch requirements, temporary air-
port conditions and other weather related 
events. 

(4) The airplane-engine combination must 

be type design approved for ETOPS greater 
than 180 minutes. 

(j) 

240-minute ETOPS in areas South of the 

equator. 

(1) The FAA grants approval to con-

duct ETOPS with maximum diversion times 
of up to 240 minutes in the following areas: 

(i) Pacific oceanic areas between the U.S. 

West coast and Australia, New Zealand and 
Polynesia. 

(ii) South Atlantic oceanic areas. 
(iii) Indian Ocean areas. 
(iv) Oceanic areas between Australia and 

South America. 

(2) The operator must designate the near-

est available ETOPS Alternate Airports 
along the planned route of flight. 

(3) The airplane-engine combination must 

be type-design-approved for ETOPS greater 
than 180 minutes. 

(k) 

ETOPS beyond 240 minutes. 

(1) The FAA 

grants approval to conduct ETOPS with di-
version times beyond 240 minutes for oper-
ations between specified city pairs on routes 
in the following areas: 

(i) The Pacific oceanic areas between the 

U.S. west coast and Australia, New Zealand, 
and Polynesia; 

(ii) The South Atlantic oceanic areas; 
(iii) The Indian Oceanic areas; and 
(iv) The oceanic areas between Australia 

and South America, and the South Polar 
Area. 

(2) This approval is granted to certificate 

holders who have been operating under 180- 
minute or greater ETOPS authority for at 
least 24 consecutive months, of which at 
least 12 consecutive months must be under 
240-minute ETOPS authority with the air-
plane-engine combination to be used. 

(3) The operator must designate the near-

est available ETOPS alternate or alternates 
along the planned route of flight. 

(4) For these operations, the airplane-en-

gine combination must be type-design-ap-
proved for ETOPS greater than 180 minutes. 

Section II. 

ETOPS Approval: Passenger-car-

rying Airplanes With More Than Two Engines. 

(a) The FAA grants approval to conduct 

ETOPS, as follows: 

background image

322 

14 CFR Ch. I (1–1–24 Edition) 

Pt. 125 

(1) Except as provided in § 121.162, the air-

plane-engine combination must be type-de-
sign-approved for ETOPS. 

(2) The operator must designate the near-

est available ETOPS Alternate Airports 
within 240 minutes diversion time (at one-en-
gine-inoperative cruise speed under standard 
conditions in still air). If an ETOPS alter-
nate is not available within 240 minutes, the 
operator must designate the nearest avail-
able ETOPS Alternate Airports along the 
planned route of flight. 

(3) The MEL limitations for the authorized 

ETOPS diversion time apply. 

(i) The Fuel Quantity Indicating System 

must be operational. 

(ii) The communications systems required 

by § 121.99(d) or § 121.122(c) must be oper-
ational. 

(4) The certificate holder must operate in 

accordance with the ETOPS authority as 
contained in its operations specifications. 

Section III. 

Approvals for operations whose 

airplane routes are planned to traverse either 
the North Polar or South Polar Areas. 

(a) Except for intrastate operations within 

the State of Alaska, no certificate holder 
may operate an aircraft in the North Polar 
Area or South Polar Area, unless authorized 
by the FAA. 

(b) In addition to any of the applicable re-

quirements of sections I and II of this appen-
dix, the certificate holder’s operations speci-
fications must contain the following: 

(1) The designation of airports that may be 

used for en-route diversions and the require-
ments the airports must meet at the time of 
diversion. 

(2) Except for supplemental all-cargo oper-

ations, a recovery plan for passengers at des-
ignated diversion airports. 

(3) A fuel-freeze strategy and procedures 

for monitoring fuel freezing. 

(4) A plan to ensure communication capa-

bility for these operations. 

(5) An MEL for these operations. 
(6) A training plan for operations in these 

areas. 

(7) A plan for mitigating crew exposure to 

radiation during solar flare activity. 

(8) A plan for providing at least two cold 

weather anti-exposure suits in the aircraft, 
to protect crewmembers during outside ac-
tivity at a diversion airport with extreme 
climatic conditions. The FAA may relieve 
the certificate holder from this requirement 
if the season of the year makes the equip-
ment unnecessary. 

[Doc. No. FAA–2002–6717, 72 FR 1883, Jan. 16, 
2007, as amended by Docket FAA–2018–0119, 
Amdt. 121–380, 83 FR 9173, Mar. 5, 2018] 

PART 125—CERTIFICATION AND 

OPERATIONS: AIRCRAFT HAVING 
A SEATING CAPACITY OF 20 OR 
MORE PASSENGERS OR A MAX-
IMUM PAYLOAD CAPACITY OF 
6,000 POUNDS OR MORE; AND 
RULES GOVERNING PERSONS ON 
BOARD SUCH AIRCRAFT 

S

PECIAL

F

EDERAL

A

VIATION

R

EGULATION

N

O

89 [N

OTE

S

PECIAL

F

EDERAL

A

VIATION

R

EGULATION

N

O

97 [N

OTE

S

PECIAL

F

EDERAL

A

VIATION

R

EGULATION

N

O

118–2 

Subpart A—General 

Sec. 
125.1

Applicability. 

125.3

Deviation authority. 

125.5

Operating certificate and operations 

specifications required. 

125.7

Display of certificate. 

125.9

Definitions. 

125.11

Certificate eligibility and prohibited 

operations. 

Subpart B—Certification Rules and 

Miscellaneous Requirements 

125.21

Application for operating certificate. 

125.23

Rules applicable to operations subject 

to this part. 

125.25

Management personnel required. 

125.26

Employment of former FAA employ-

ees. 

125.27

Issue of certificate. 

125.29

Duration of certificate. 

125.31

Contents of certificate and operations 

specifications. 

125.33

Operations specifications not a part 

of certificate. 

125.35

Amendment of operations specifica-

tions. 

125.37

Duty period limitations. 

125.39

Carriage of narcotic drugs, mari-

huana, and depressant or stimulant drugs 
or substances. 

125.41

Availability of certificate and oper-

ations specifications. 

125.43

Use of operations specifications. 

125.45

Inspection authority. 

125.47

Change of address. 

125.49

Airport requirements. 

125.51

En route navigation facilities. 

125.53

Flight locating requirements. 

Subpart C—Manual Requirements 

125.71

Preparation. 

125.73

Contents. 

125.75

Airplane flight manual.