[Code of Federal Regulations]
[Title 14, Volume 1]
[Revised as of January 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 14CFR33.29]

[Page 739]
 
                     TITLE 14--AERONAUTICS AND SPACE
 
CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
 
PART 33--AIRWORTHINESS STANDARDS: AIRCRAFT ENGINES--Table of Contents
 
               Subpart B--Design and Construction; General
 
Sec. 33.29  Instrument connection.

    (a) Unless it is constructed to prevent its connection to an 
incorrect instrument, each connection provided for powerplant 
instruments required by aircraft airworthiness regulations or necessary 
to insure operation of the engine in compliance with any engine 
limitation must be marked to identify it with its corresponding 
instrument.
    (b) A connection must be provided on each turbojet engine for an 
indicator system to indicate rotor system unbalance.
    (c) Each rotorcraft turbine engine having a 30-second OEI rating and 
a 2-minute OEI rating must have a provision for a means to:
    (1) Alert the pilot when the engine is at the 30-second OEI and the 
2-minute OEI power levels, when the event begins, and when the time 
interval expires;
    (2) Determine, in a positive manner, that the engine has been 
operated at each rating; and
    (3) Automatically record each usage and duration of power at each 
rating.

[Amdt. 33-5, 39 FR 1831, Jan. 15, 1974, as amended by Amdt. 33-6, 39 FR 
35465, Oct. 1, 1974; Amdt. 33-18, 61 FR 31328, June 19, 1996]