[Code of Federal Regulations]
[Title 14, Volume 1]
[Revised as of January 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 14CFR43.3]

[Page 875-876]
 
                     TITLE 14--AERONAUTICS AND SPACE
 
CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
 
PART 43--MAINTENANCE, PREVENTIVE MAINTENANCE, REBUILDING, AND ALTERATION--Table 
of Contents
 
Sec. 43.3  Persons authorized to perform maintenance, preventive maintenance, 
rebuilding, and alterations.

    (a) Except as provided in this section and Sec. 43.17, no person may 
maintain, rebuild, alter, or perform preventive maintenance on an 
aircraft, airframe, aircraft engine, propeller, appliance, or component 
part to which this part applies. Those items, the performance of which 
is a major alteration, a major repair, or preventive maintenance, are 
listed in appendix A.
    (b) The holder of a mechanic certificate may perform maintenance, 
preventive maintenance, and alterations as provided in Part 65 of this 
chapter.
    (c) The holder of a repairman certificate may perform maintenance 
and preventive maintenance as provided in Part 65 of this chapter.
    (d) A person working under the supervision of a holder of a mechanic 
or repairman certificate may perform the maintenance, preventive 
maintenance, and alterations that his supervisor is authorized to 
perform, if the supervisor personally observes the work being done to 
the extent necessary to ensure that it is being done properly and if the 
supervisor is readily available, in person, for consultation. However, 
this paragraph does not authorize the performance of any inspection 
required by Part 91 or Part 125 of this chapter or any inspection 
performed after a major repair or alteration.
    (e) The holder of a repair station certificate may perform 
maintenance, preventive maintenance, and alterations as provided in Part 
145 of this chapter.
    (f) The holder of an air carrier operating certificate or an 
operating certificate issued under Part 121 or 135, may perform 
maintenance, preventive maintenance, and alterations as provided in Part 
121 or 135.
    (g) The holder of a pilot certificate issued under Part 61 may 
perform preventive maintenance on any aircraft owned or operated by that 
pilot which is not used under Part 121, 129, or 135.
    (h) Notwithstanding the provisions of paragraph (g) of this section, 
the Administrator may approve a certificate holder under Part 135 of 
this chapter, operating rotorcraft in a remote area, to allow a pilot to 
perform specific preventive maintenance items provided--
    (1) The items of preventive maintenance are a result of a known or 
suspected mechanical difficulty or malfunction that occurred en route to 
or in a remote area;
    (2) The pilot has satisfactorily completed an approved training 
program and is authorized in writing by the certificate holder for each 
item of preventive maintenance that the pilot is authorized to perform;
    (3) There is no certificated mechanic available to perform 
preventive maintenance;

[[Page 876]]

    (4) The certificate holder has procedures to evaluate the 
accomplishment of a preventive maintenance item that requires a decision 
concerning the airworthiness of the rotorcraft; and
    (5) The items of preventive maintenance authorized by this section 
are those listed in paragraph (c) of appendix A of this part.
    (i) Notwithstanding the provisions of paragraph (g) of this section, 
in accordance with an approval issued to the holder of a certificate 
issued under part 135 of this chapter, a pilot of an aircraft type-
certificated for 9 or fewer passenger seats, excluding any pilot seat, 
may perform the removal and reinstallation of approved aircraft cabin 
seats, approved cabin-mounted stretchers, and when no tools are 
required, approved cabin-mounted medical oxygen bottles, provided--
    (1) The pilot has satisfactorily completed an approved training 
program and is authorized in writing by the certificate holder to 
perform each task; and
    (2) The certificate holder has written procedures available to the 
pilot to evaluate the accomplishment of the task.
    (j) A manufacturer may--
    (1) Rebuild or alter any aircraft, aircraft engine, propeller, or 
appliance manufactured by him under a type or production certificate;
    (2) Rebuild or alter any appliance or part of aircraft, aircraft 
engines, propellers, or appliances manufactured by him under a Technical 
Standard Order Authorization, an FAA-Parts Manufacturer Approval, or 
Product and Process Specification issued by the Administrator; and
    (3) Perform any inspection required by Part 91 or Part 125 of this 
chapter on aircraft it manufacturers, while currently operating under a 
production certificate or under a currently approved production 
inspection system for such aircraft.

[Doc. No. 1993, 29 FR 5451, Apr. 23, 1964, as amended by Amdt. 43-4, 31 
FR 5249, Apr. 1, 1966; Amdt. 43-23, 47 FR 41084, Sept. 16, 1982; Amdt. 
43-25, 51 FR 40702, Nov. 7, 1986; Amdt. 43-36, 61 FR 19501, May 1, 1996; 
Amdt. 43-37, 66 FR 21066, Apr. 27, 2001]