Section 35.4

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

operating pressure, and filtration levels; and
(6) State the assumptions made to
comply with the requirements of this
part.
(b) Instructions for operating the
propeller which must specify all procedures necessary for operating the propeller within the limitations of the
propeller type design.
[Amdt. 35-8, 73 FR 63346, Oct. 24, 2008]

Section 35.4 Instructions for Continued Airworthiness.
The applicant must prepare Instructions for Continued Airworthiness in
accordance with appendix A to this
part that are acceptable to the Administrator. The instructions may be incomplete at type certification if a program exists to ensure their completion
prior to delivery of the first aircraft
with the propeller installed, or upon
issuance of a standard certificate of
airworthiness for an aircraft with the
propeller installed, whichever occurs
later.
[Amdt. 35-5, 45 FR 60181, Sept. 11, 1980]

spaschal on DSK3GDR082PROD with CFR

Section 35.5 Propeller ratings and operating
limitations.
(a) Propeller ratings and operating
limitations must:
(1) Be established by the applicant
and approved by the Administrator.
(2) Be included directly or by reference in the propeller type certificate
data sheet, as specified in Section 21.41 of this
chapter.
(3) Be based on the operating conditions demonstrated during the tests required by this part as well as any other
information the Administrator requires as necessary for the safe operation of the propeller.
(b) Propeller ratings and operating
limitations must be established for the
following, as applicable:
(1) Power and rotational speed:
(i) For takeoff.
(ii) For maximum continuous.
(iii) If requested by the applicant,
other ratings may also be established.
(2) Overspeed and overtorque limits.
[Amdt. 35-8, 73 FR 63346, Oct. 24, 2008]

Section 35.7

Features and characteristics.

(a) The propeller may not have features or characteristics, revealed by
any test or analysis or known to the
applicant, that make it unsafe for the
uses for which certification is requested.
(b) If a failure occurs during a certification test, the applicant must determine the cause and assess the effect on
the airworthiness of the propeller. The
applicant must make changes to the
design and conduct additional tests
that the Administrator finds necessary
to establish the airworthiness of the
propeller.
[Amdt. 35-8, 73 FR 63346, Oct. 24, 2008]

Subpart B - Design and
Construction
Section 35.11

[Reserved]

Section 35.13

[Reserved]

Section 35.15

Safety analysis.

(a)(1) The applicant must analyze the
propeller system to assess the likely
consequences of all failures that can
reasonably be expected to occur. This
analysis will take into account, if applicable:
(i) The propeller system in a typical
installation. When the analysis depends on representative components,
assumed interfaces, or assumed installed conditions, the assumptions
must be stated in the analysis.
(ii) Consequential secondary failures
and dormant failures.
(iii) Multiple failures referred to in
paragraph (d) of this section, or that
result in the hazardous propeller effects defined in paragraph (g)(1) of this
section.
(2) The applicant must summarize
those failures that could result in
major propeller effects or hazardous
propeller effects defined in paragraph
(g) of this section, and estimate the
probability of occurrence of those effects.
(3) The applicant must show that
hazardous propeller effects are not predicted to occur at a rate in excess of
that defined as extremely remote
(probability of 10Section7 or less per propeller

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