Section 35.42

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

demonstrate that the propeller is capable of further operation without maintenance action at the maximum propeller overtorque condition. This may
be accomplished by:
(1) Performance of 20 runs, each of 30
seconds duration, at the maximum propeller overtorque condition; or
(2) Analysis based on test or service
experience.
[Amdt. 35-8, 73 FR 63349, Oct. 24, 2008]

Section 35.42 Components of the propeller
control system.
The applicant must demonstrate by
tests, analysis based on tests, or service experience on similar components,
that each propeller blade pitch control
system component, including governors, pitch change assemblies, pitch
locks, mechanical stops, and feathering
system components, can withstand cyclic operation that simulates the normal load and pitch change travel to
which the component would be subjected during the initially declared
overhaul period or during a minimum
of 1,000 hours of typical operation in
service.
[Amdt. 35-8, 73 FR 63349, Oct. 24, 2008]

Section 35.43 Propeller
nents.

hydraulic

compo-

Applicants must show by test, validated analysis, or both, that propeller
components that contain hydraulic
pressure and whose structural failure
or leakage from a structural failure
could cause a hazardous propeller effect demonstrate structural integrity
by:
(a) A proof pressure test to 1.5 times
the maximum operating pressure for
one minute without permanent deformation or leakage that would prevent
performance of the intended function.
(b) A burst pressure test to 2.0 times
the maximum operating pressure for
one minute without failure. Leakage is
permitted and seals may be excluded
from the test.

spaschal on DSK3GDR082PROD with CFR

[Amdt. 35-8, 73 FR 63349, Oct. 24, 2008]

SectionSection 35.45-35.47

[Reserved]

APPENDIX A TO PART 35 - INSTRUCTIONS
FOR CONTINUED AIRWORTHINESS
A35.1

GENERAL

(a) This appendix specifies requirements
for the preparation of Instructions for Continued Airworthiness as required by Section 35.4.
(b) The Instructions for Continued Airworthiness for each propeller must include
the Instructions for Continued Airworthiness
for all propeller parts. If Instructions for
Continued Airworthiness are not supplied by
the propeller part manufacturer for a propeller part, the Instructions for Continued
Airworthiness for the propeller must include
the information essential to the continued
airworthiness of the propeller.
(c) The applicant must submit to the FAA
a program to show how changes to the Instructions for Continued Airworthiness made
by the applicant or by the manufacturers of
propeller parts will be distributed.
A35.2

FORMAT

(a) The Instructions for Continued Airworthiness must be in the form of a manual
or manuals as appropriate for the quantity
of data to be provided.
(b) The format of the manual or manuals
must provide for a practical arrangement.
A35.3

CONTENT

The contents of the manual must be prepared in the English language. The Instructions for Continued Airworthiness must contain the following sections and information:
(a) Propeller Maintenance Section. (1) Introduction information that includes an explanation of the propeller-s features and data to
the extent necessary for maintenance or preventive maintenance.
(2) A detailed description of the propeller
and its systems and installations.
(3) Basic control and operation information
describing how the propeller components and
systems are controlled and how they operate, including any special procedures that
apply.
(4) Instructions for uncrating, acceptance
checking, lifting, and installing the propeller.
(5) Instructions for propeller operational
checks.
(6) Scheduling information for each part of
the propeller that provides the recommended
periods at which it should be cleaned, adjusted, and tested, the applicable wear tolerances, and the degree of work recommended
at these periods. However, the applicant may
refer to an accessory, instrument, or equipment manufacturer as the source of this information if it shows that the item has an
exceptionally high degree of complexity requiring specialized maintenance techniques,
test equipment, or expertise. The recommended overhaul periods and necessary

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