Federal Aviation Administration, DOT

Section 135.422

Section 135.421 Additional maintenance requirements.
(a) Each certificate holder who operates an aircraft type certificated for a
passenger seating configuration, excluding any pilot seat, of nine seats or
less, must comply with the manufacturer-s recommended maintenance programs, or a program approved by the
Administrator, for each aircraft engine, 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 maintenance manual or maintenance instructions set forth by the manufacturer 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 operations, each certificate holder must
incorporate into its maintenance program either:
(1) The manufacturer-s recommended
engine trend monitoring program,
which includes an oil analysis, if appropriate, 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 interval, whichever is more frequent.
(d) For single engine aircraft to be
used in passenger-carrying IFR operations, written maintenance instructions containing the methods, techniques, and practices necessary to
maintain the equipment specified in
SectionSection 135.105, and 135.163 (f) and (h) are required.
(e) No certificate holder may operate
a single engine aircraft under IFR, carrying passengers, unless the certificate
holder records and maintains in the engine 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]

Section 135.422 Aging airplane inspections
and records reviews for multiengine airplanes certificated with
nine or fewer passenger seats.
(a) Applicability. This section applies
to multiengine airplanes certificated
with nine or fewer passenger seats, operated by a certificate holder in a
scheduled operation under this part,
except for those airplanes operated by
a certificate holder in a scheduled operation 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 airplane 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 inspection and records review, the certificate holder must demonstrate to
the Administrator that the maintenance of age-sensitive parts and components of the airplane has been adequate and timely enough to ensure the
highest degree of safety.
(1) Airplanes exceeding 24 years in service on December 8, 2003; initial and repetitive 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 service but not 24 years in service on December 8, 2003; initial and repetitive inspections and records reviews. For an airplane that has exceeded 14 years in
service, but not 24 years in service, on
December 8, 2003, no later than December 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 repetitive 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.

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