499 

Federal Aviation Administration, DOT 

§ 135.422 

§ 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 
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. 

VerDate Sep<11>2014 

08:20 May 17, 2019

Jkt 247048

PO 00000

Frm 00509

Fmt 8010

Sfmt 8002

Y:\SGML\247048.XXX

247048