899 

Federal Aviation Administration, DOT 

§ 35.5 

Subpart A—General 

§ 35.1

Applicability. 

(a) This part prescribes airworthiness 

standards for the issue of type certifi-
cates and changes to those certificates, 
for propellers. 

(b) Each person who applies under 

part 21 for such a certificate or change 
must show compliance with the appli-
cable requirements of this part. 

(c) An applicant is eligible for a pro-

peller type certificate and changes to 
those certificates after demonstrating 
compliance with subparts A, B and C of 
this part. However, the propeller may 
not be installed on an airplane unless 
the applicant has shown compliance 
with either § 23.907 or § 25.907 of this 
chapter, as applicable, or compliance is 
not required for installation on that 
airplane. 

(d) For the purposes of this part, the 

propeller consists of those components 
listed in the propeller type design, and 
the propeller system consists of the 
propeller and all the components nec-
essary for its functioning, but not nec-
essarily included in the propeller type 
design. 

[Amdt. 35–3, 41 FR 55475, Dec. 20, 1976, as 
amended by Amdt. 35–8, 73 FR 63346, Oct. 24, 
2008] 

§ 35.2

Propeller configuration. 

The applicant must provide a list of 

all the components, including ref-
erences to the relevant drawings and 
software design data, that define the 
type design of the propeller to be ap-
proved under § 21.31 of this chapter. 

[Amdt. 35–8, 73 FR 63346, Oct. 24, 2008] 

§ 35.3

Instructions for propeller instal-

lation and operation. 

The applicant must provide instruc-

tions that are approved by the Admin-
istrator. Those approved instructions 
must contain: 

(a) Instructions for installing the 

propeller, which: 

(1) Include a description of the oper-

ational modes of the propeller control 
system and functional interface of the 
control system with the airplane and 
engine systems; 

(2) Specify the physical and func-

tional interfaces with the airplane, air-
plane equipment and engine; 

(3) Define the limiting conditions on 

the interfaces from paragraph (a)(2) of 
this section; 

(4) List the limitations established 

under § 35.5; 

(5) Define the hydraulic fluids ap-

proved for use with the propeller, in-
cluding grade and specification, related 
operating pressure, and filtration lev-
els; and 

(6) State the assumptions made to 

comply with the requirements of this 
part. 

(b) Instructions for operating the 

propeller which must specify all proce-
dures necessary for operating the pro-
peller within the limitations of the 
propeller type design. 

[Amdt. 35–8, 73 FR 63346, Oct. 24, 2008] 

§ 35.4

Instructions for Continued Air-

worthiness. 

The applicant must prepare Instruc-

tions for Continued Airworthiness in 
accordance with appendix A to this 
part that are acceptable to the Admin-
istrator. The instructions may be in-
complete at type certification if a pro-
gram 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] 

§ 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 ref-

erence in the propeller type certificate 
data sheet, as specified in § 21.41 of this 
chapter. 

(3) Be based on the operating condi-

tions demonstrated during the tests re-
quired by this part as well as any other 
information the Administrator re-
quires as necessary for the safe oper-
ation of the propeller. 

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