[Code of Federal Regulations]
[Title 14, Volume 1]
[Revised as of January 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 14CFR35.21]

[Page 799-800]
 
                     TITLE 14--AERONAUTICS AND SPACE
 
CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
 
PART 35--AIRWORTHINESS STANDARDS: PROPELLERS--Table of Contents
 
                   Subpart B--Design and Construction
 
Sec. 35.21  Reversible propellers.

    A reversible propeller must be adaptable for use with a reversing 
system in an airplane so that no single failure or

[[Page 800]]

malfunction in that system during normal or emergency operation will 
result in unwanted travel of the propeller blades to a position 
substantially below the normal flight low-pitch stop. Failure of 
structural elements need not be considered if the occurrence of such a 
failure is expected to be extremely remote. For the purposes of this 
section the term ``reversing system'' means that part of the complete 
reversing system that is in the propeller itself and those other parts 
that are supplied by the applicant for installation in the aircraft.