Section 135.437

14 CFR Ch. I (1-1-19 Edition)

shop or station that performs maintenance, preventive maintenance, alterations, or other functions affecting airworthiness. 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 instruction or decision from higher authority
than that of the person performing the
work.
[Doc. No. 16097, 43 FR 46783, Oct. 10, 1978, as
amended by Amdt. 135-82, 66 FR 41117, Aug. 6,
2001]

Section 135.437 Authority to perform and approve
maintenance,
preventive
maintenance, and alterations.
(a) A certificate holder may perform
or make arrangements with other persons to perform maintenance, preventive maintenance, and alterations as
provided in its maintenance manual. In
addition, a certificate holder may perform these functions for another certificate holder as provided in the maintenance manual of the other certificate
holder.
(b) A certificate holder may approve
any airframe, aircraft engine, propeller, rotor, 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 alteration, the work
must have been done in accordance
with technical data approved by the
Administrator.
Section 135.439 Maintenance
quirements.

recording

re-

(a) Each certificate holder shall keep
(using the system specified in the manual required in Section 135.427) the following
records for the periods specified in
paragraph (b) of this section:
(1) All the records necessary to show
that all requirements for the issuance
of an airworthiness release under
Section 135.443 have been met.
(2) Records containing the following
information:
(i) The total time in service of the
airframe, engine, propeller, and rotor.
(ii) The current status of life-limited
parts of each airframe, engine, propeller, rotor, and appliance.

(iii) The time since last overhaul of
each item installed on the aircraft
which are required to be overhauled on
a specified time basis.
(iv) The identification of the current
inspection status of the aircraft, including the time since the last inspections required by the inspection program under which the aircraft and its
appliances are maintained.
(v) The current status of applicable
airworthiness 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.
(vi) A list of current major alterations and repairs to each airframe, engine, propeller, rotor, and appliance.
(b) Each certificate holder shall retain 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, rotor, 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, propeller, rotor, 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.
(c) The certificate holder shall make
all maintenance records required to be
kept by this section available for inspection by the Administrator or any
representative of the National Transportation Safety Board.
[Doc. No. 16097, 43 FR 46783, Oct. 10, 1978; 43
FR 49975, Oct. 26, 1978]

Section 135.441 Transfer
of
maintenance
records.
Each certificate holder who sells a
United States registered aircraft shall
transfer to the purchaser, at the time
of the sale, the following records of
that aircraft, in plain language form or
in coded form which provides for the
preservation and retrieval of information in a manner acceptable to the Administrator:

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