847
Federal Aviation Administration, DOT
§ 43.3
(1) The repair or alteration form
specified in §§ 43.5(b) and 43.9(d) is not
required to be completed for products
not produced under an FAA approval;
(2) Major repairs and major alter-
ations for products not produced under
an FAA approval are not required to be
recorded in accordance with appendix B
of this part; and
(3) The listing of major alterations
and major repairs specified in para-
graphs (a) and (b) of appendix A of this
part is not applicable to products not
produced under an FAA approval.
[Doc. No. 1993, 29 FR 5451, Apr. 23, 1964, as
amended by Amdt. 43–23, 47 FR 41084, Sept.
16, 1982; Amdt. 43–37, 66 FR 21066, Apr. 27,
2001; Amdt. 43–38, 67 FR 2109, Jan. 15, 2002;
Amdt. 43–39, 69 FR 44863, July 27, 2004; Amdt.
43–44, 75 FR 5219, Feb. 1, 2010; Docket FAA–
2015–0150, Amdt. 43–48, 81 FR 42208, June 28,
2016; Docket FAA–2018–1087, Amdt. 43–51, 86
FR 4381, Jan. 15, 2021]
§ 43.2
Records of overhaul and rebuild-
ing.
(a) No person may describe in any re-
quired maintenance entry or form an
aircraft, airframe, aircraft engine, pro-
peller, appliance, or component part as
being overhauled unless—
(1) Using methods, techniques, and
practices acceptable to the Adminis-
trator, it has been disassembled,
cleaned, inspected, repaired as nec-
essary, and reassembled; and
(2) It has been tested in accordance
with approved standards and technical
data, or in accordance with current
standards and technical data accept-
able to the Administrator, which have
been developed and documented by the
holder of the type certificate, supple-
mental type certificate, or a material,
part, process, or appliance approval
under part 21 of this chapter.
(b) No person may describe in any re-
quired maintenance entry or form an
aircraft, airframe, aircraft engine, pro-
peller, appliance, or component part as
being rebuilt unless it has been dis-
assembled, cleaned, inspected, repaired
as necessary, reassembled, and tested
to the same tolerances and limits as a
new item, using either new parts or
used parts that either conform to new
part tolerances and limits or to ap-
proved oversized or undersized dimen-
sions.
[Amdt. 43–23, 47 FR 41084, Sept. 16, 1982, as
amended by Amdt. 43–43, 74 FR 53394, Oct. 16,
2009]
§ 43.3
Persons authorized to perform
maintenance, preventive mainte-
nance, rebuilding, and alterations.
(a) Except as provided in this section
and § 43.17, no person may maintain, re-
build, alter, or perform preventive
maintenance on an aircraft, airframe,
aircraft engine, propeller, appliance, or
component part to which this part ap-
plies. Those items, the performance of
which is a major alteration, a major re-
pair, or preventive maintenance, are
listed in appendix A.
(b) The holder of a mechanic certifi-
cate may perform maintenance, pre-
ventive maintenance, and alterations
as provided in Part 65 of this chapter.
(c) The holder of a repairman certifi-
cate may perform maintenance, pre-
ventive maintenance, and alterations
as provided in part 65 of this chapter.
(d) A person working under the su-
pervision 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 per-
son, for consultation. However, this
paragraph does not authorize the per-
formance 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 cer-
tificate may perform maintenance, pre-
ventive maintenance, and alterations
as provided in Part 145 of this chapter.
(f) The holder of an air carrier oper-
ating certificate or an operating cer-
tificate issued under Part 121 or 135,
may perform maintenance, preventive
maintenance, and alterations as pro-
vided in Part 121 or 135.
(g) Except for holders of a sport pilot
certificate, the holder of a pilot certifi-
cate issued under part 61 may perform
preventive maintenance on any air-
craft owned or operated by that pilot
which is not used under part 121, 129, or
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§ 43.5
135 of this chapter. The holder of a
sport pilot certificate may perform
preventive maintenance on an aircraft
owned or operated by that pilot and
issued a special airworthiness certifi-
cate in the light-sport category.
(h) Notwithstanding the provisions of
paragraph (g) of this section, the Ad-
ministrator may approve a certificate
holder under Part 135 of this chapter,
operating rotorcraft in a remote area,
to allow a pilot to perform specific pre-
ventive maintenance items provided—
(1) The items of preventive mainte-
nance are a result of a known or sus-
pected mechanical difficulty or mal-
function that occurred en route to or
in a remote area;
(2) The pilot has satisfactorily com-
pleted an approved training program
and is authorized in writing by the cer-
tificate holder for each item of preven-
tive maintenance that the pilot is au-
thorized to perform;
(3) There is no certificated mechanic
available to perform preventive main-
tenance;
(4) The certificate holder has proce-
dures to evaluate the accomplishment
of a preventive maintenance item that
requires a decision concerning the air-
worthiness of the rotorcraft; and
(5) The items of preventive mainte-
nance authorized by this section are
those listed in paragraph (c) of appen-
dix A of this part.
(i) Notwithstanding the provisions of
paragraph (g) of this section, in accord-
ance with an approval issued to the
holder of a certificate issued under part
135 of this chapter, a pilot of an air-
craft type-certificated for 9 or fewer
passenger seats, excluding any pilot
seat, may perform the removal and re-
installation of approved aircraft cabin
seats, approved cabin-mounted stretch-
ers, and when no tools are required, ap-
proved cabin-mounted medical oxygen
bottles, provided—
(1) The pilot has satisfactorily com-
pleted an approved training program
and is authorized in writing by the cer-
tificate 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, air-
craft 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, pro-
pellers, or appliances manufactured by
him under a Technical Standard Order
Authorization, an FAA-Parts Manufac-
turer Approval, or Product and Process
Specification issued by the Adminis-
trator; and
(3) Perform any inspection required
by part 91 or part 125 of this chapter on
aircraft it manufactured under a type
certificate, or currently manufactures
under a production certificate.
(k) Updates of databases in installed
avionics meeting the conditions of this
paragraph are not considered mainte-
nance and may be performed by pilots
provided:
(1) The database upload is:
(i) Initiated from the flight deck;
(ii) Performed without disassembling
the avionics unit; and
(iii) Performed without the use of
tools and/or special equipment.
(2) The pilot must comply with the
certificate holder’s procedures or the
manufacturer’s instructions.
(3) The holder of operating certifi-
cates must make available written pro-
cedures consistent with manufacturer’s
instructions to the pilot that describe
how to:
(i) Perform the database update; and
(ii) Determine the status of the data
upload.
[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; Amdt. 43–39, 69 FR
44863, July 27, 2004; Amdt. 43–43, 74 FR 53394,
Oct. 16, 2009; Amdt. 43–45, 77 FR 71096, Nov.
29, 2012]
§ 43.5
Approval for return to service
after maintenance, preventive
maintenance, rebuilding, or alter-
ation.
No person may approve for return to
service any aircraft, airframe, aircraft
engine, propeller, or appliance, that
has undergone maintenance, preventive
maintenance, rebuilding, or alteration
unless—
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