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 

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