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511 

Federal Aviation Administration, DOT 

§ 135.422 

inspections and correction or deferral 
of discrepancies including form and 
disposition of records. 

(e) After approval, the certificate 

holder shall include the approved air-
craft inspection program in the manual 
required by § 135.21. 

(f) Whenever the Administrator finds 

that revisions to an approved aircraft 
inspection program are necessary for 
the continued adequacy of the pro-
gram, the certificate holder shall, after 
notification by the Administrator, 
make any changes in the program 
found by the Administrator to be nec-
essary. The certificate holder may pe-
tition the Administrator to reconsider 
the notice to make any changes in a 
program. The petition must be filed 
with the representatives of the Admin-
istrator assigned to it within 30 days 
after the certificate holder receives the 
notice. Except in the case of an emer-
gency requiring immediate action in 
the interest of safety, the filing of the 
petition stays the notice pending a de-
cision by the Administrator. 

(g) Each certificate holder who has 

an approved aircraft inspection pro-
gram shall have each aircraft that is 
subject to the program inspected in ac-
cordance with the program. 

(h) The registration number of each 

aircraft that is subject to an approved 
aircraft inspection program must be in-
cluded in the operations specifications 
of the certificate holder. 

[Doc. No. 16097, 43 FR 46783, Oct. 10, 1978, as 
amended by Amdt. 135–104, 71 FR 536, Jan. 4, 
2006] 

§ 135.421 Additional maintenance re-

quirements. 

(a) Each certificate holder who oper-

ates an aircraft type certificated for a 
passenger seating configuration, ex-
cluding any pilot seat, of nine seats or 
less, must comply with the manufac-
turer’s recommended maintenance pro-
grams, or a program approved by the 
Administrator, for each aircraft en-
gine, propeller, rotor, and each item of 
emergency equipment required by this 
chapter. 

(b) For the purpose of this section, a 

manufacturer’s maintenance program 
is one which is contained in the main-
tenance manual or maintenance in-
structions set forth by the manufac-

turer as required by this chapter for 
the aircraft, aircraft engine, propeller, 
rotor or item of emergency equipment. 

(c) For each single engine aircraft to 

be used in passenger-carrying IFR op-
erations, each certificate holder must 
incorporate into its maintenance pro-
gram either: 

(1) The manufacturer’s recommended 

engine trend monitoring program, 
which includes an oil analysis, if appro-
priate, or 

(2) An FAA approved engine trend 

monitoring program that includes an 
oil analysis at each 100 hour interval or 
at the manufacturer’s suggested inter-
val, whichever is more frequent. 

(d) For single engine aircraft to be 

used in passenger-carrying IFR oper-
ations, written maintenance instruc-
tions containing the methods, tech-
niques, and practices necessary to 
maintain the equipment specified in 
§§ 135.105, and 135.163 (f) and (h) are re-
quired. 

(e) No certificate holder may operate 

a single engine aircraft under IFR, car-
rying passengers, unless the certificate 
holder records and maintains in the en-
gine maintenance records the results of 
each test, observation, and inspection 
required by the applicable engine trend 
monitoring program specified in (c) (1) 
and (2) of this section. 

[Doc. No. 16097, 43 FR 46783, Oct. 10, 1978, as 
amended by Amdt. 135–70, 62 FR 42374, Aug. 6, 
1997] 

§ 135.422 Aging airplane inspections 

and records reviews for multien-

gine airplanes certificated with 

nine or fewer passenger seats. 

(a) 

Applicability. 

This section applies 

to multiengine airplanes certificated 
with nine or fewer passenger seats, op-
erated by a certificate holder in a 
scheduled operation under this part, 
except for those airplanes operated by 
a certificate holder in a scheduled op-
eration between any point within the 
State of Alaska and any other point 
within the State of Alaska. 

(b) 

Operation after inspections and 

records review. 

After the dates specified 

in this paragraph, a certificate holder 
may not operate a multiengine air-
plane in a scheduled operation under 
this part unless the Administrator has 
notified the certificate holder that the 

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512 

14 CFR Ch. I (1–1–24 Edition) 

§ 135.423 

Administrator 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 the records containing the 
following information: 

(1) Total years in service of the air-

plane; 

(2) Total time in service of the air-

frame; 

(3) Date of the last inspection and 

records review required by this section; 

(4) Current status of life-limited 

parts of the airframe; 

(5) Time since the last overhaul of all 

structural components required to be 
overhauled on a specific time basis; 

(6) 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; 

(7) Current status of applicable air-

worthiness directives, including the 
date and methods of compliance, and, 
if the airworthiness directive involves 
recurring action, the time and date 
when the next action is required; 

(8) A list of major structural alter-

ations; and 

(9) A report of major structural re-

pairs and the current inspection status 
for these repairs. 

(e) 

Notification to the Administrator. 

Each certificate holder must notify the 
Administrator 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, 70 FR 5533, Feb. 2, 
2005] 

§ 135.423 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 under § 135.427(b) (2) or (3), (in 
this subpart referred to as 

required in-

spections

), and each person with whom 

it arranges for the performance of that 
work, must have an organization ade-
quate to perform 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