853 

Federal Aviation Administration, DOT 

§ 43.17 

chapter, perform the inspection in ac-
cordance with the instructions and pro-
cedures set forth in the inspection pro-
gram for the aircraft being inspected. 

(b) 

Rotorcraft. 

Each person per-

forming an inspection required by Part 
91 on a rotorcraft shall inspect the fol-
lowing systems in accordance with the 
maintenance manual or Instructions 
for Continued Airworthiness of the 
manufacturer concerned: 

(1) The drive shafts or similar sys-

tems. 

(2) The main rotor transmission gear 

box for obvious defects. 

(3) The main rotor and center section 

(or the equivalent area). 

(4) The auxiliary rotor on heli-

copters. 

(c) 

Annual and 100-hour inspections. (1) 

Each person performing an annual or 
100-hour inspection shall use a check-
list while performing the inspection. 
The checklist may be of the person’s 
own design, one provided by the manu-
facturer of the equipment being in-
spected or one obtained from another 
source. This checklist must include the 
scope and detail of the items contained 
in appendix D to this part and para-
graph (b) of this section. 

(2) Each person approving a recipro-

cating-engine-powered aircraft for re-
turn to service after an annual or 100- 
hour inspection shall, before that ap-
proval, run the aircraft engine or en-
gines to determine satisfactory per-
formance in accordance with the manu-
facturer’s recommendations of— 

(i) Power output (static and idle 

r.p.m.); 

(ii) Magnetos; 
(iii) Fuel and oil pressure; and 
(iv) Cylinder and oil temperature. 
(3) Each person approving a turbine- 

engine-powered aircraft for return to 
service after an annual, 100-hour, or 
progressive inspection shall, before 
that approval, run the aircraft engine 
or engines to determine satisfactory 
performance in accordance with the 
manufacturer’s recommendations. 

(d) 

Progressive inspection. (1) Each per-

son performing a progressive inspec-
tion shall, at the start of a progressive 
inspection system, inspect the aircraft 
completely. After this initial inspec-
tion, routine and detailed inspections 
must be conducted as prescribed in the 

progressive inspection schedule. Rou-
tine inspections consist of visual exam-
ination or check of the appliances, the 
aircraft, and its components and sys-
tems, insofar as practicable without 
disassembly. Detailed inspections con-
sist of a thorough examination of the 
appliances, the aircraft, and its compo-
nents and systems, with such dis-
assembly as is necessary. For the pur-
poses of this subparagraph, the over-
haul of a component or system is con-
sidered to be a detailed inspection. 

(2) If the aircraft is away from the 

station where inspections are normally 
conducted, an appropriately rated me-
chanic, a certificated repair station, or 
the manufacturer of the aircraft may 
perform inspections in accordance with 
the procedures and using the forms of 
the person who would otherwise per-
form the inspection. 

[Doc. No. 1993, 29 FR 5451, Apr. 23, 1964, as 
amended by Amdt. 43–23, 47 FR 41086, Sept. 
16, 1982; Amdt. 43–25, 51 FR 40702, Nov. 7, 1986; 
Amdt. 43–31, 54 FR 34330, Aug. 18, 1989; 71 FR 
44188, Aug. 4, 2006] 

§ 43.16

Airworthiness limitations. 

Each person performing an inspec-

tion or other maintenance specified in 
an Airworthiness Limitations section 
of a manufacturer’s maintenance man-
ual or Instructions for Continued Air-
worthiness shall perform the inspec-
tion or other maintenance in accord-
ance with that section, or in accord-
ance with operations specifications ap-
proved by the Administrator under 
part 121 or 135, or an inspection pro-
gram approved under § 91.409(e). 

[71 FR 44188, Aug. 4, 2006] 

§ 43.17

Maintenance, preventive main-

tenance, and alterations performed 
on U.S. aeronautical products by 
certain Canadian persons. 

(a) 

Definitions.  For purposes of this 

section: 

Aeronautical product means any civil 

aircraft or airframe, aircraft engine, 
propeller, appliance, component, or 
part to be installed thereon. 

Canadian aeronautical product means 

any aeronautical product under air-
worthiness regulation by Transport 
Canada Civil Aviation. 

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