[Code of Federal Regulations]
[Title 14, Volume 2]
[Revised as of January 1, 2008]
From the U.S. Government Printing Office via GPO Access
[CITE: 14CFR121.289]

[Page 768]
 
                     TITLE 14--AERONAUTICS AND SPACE
 
CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION 
                               (CONTINUED)
 
PART 121_OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS--
 
              Subpart J_Special Airworthiness Requirements
 
Sec. 121.289  Landing gear: Aural warning device.

    (a) Except for airplanes that comply with the requirements of Sec. 
25.729 of this chapter on or after January 6, 1992, each airplane must 
have a landing gear aural warning device that functions continuously 
under the following conditions:
    (1) For airplanes with an established approach wing-flap position, 
whenever the wing flaps are extended beyond the maximum certificated 
approach climb configuration position in the Airplane Flight Manual and 
the landing gear is not fully extended and locked.
    (2) For airplanes without an established approach climb wing-flap 
position, whenever the wing flaps are extended beyond the position at 
which landing gear extension is normally performed and the landing gear 
is not fully extended and locked.
    (b) The warning system required by paragraph (a) of this section--
    (1) May not have a manual shutoff;
    (2) Must be in addition to the throttle-actuated device installed 
under the type certification airworthiness requirements; and
    (3) May utilize any part of the throttle-actuated system including 
the aural warning device.
    (c) The flap position sensing unit may be installed at any suitable 
place in the airplane.

[Doc. No. 6258, 29 FR 19202, Dec. 31, 1964, as amended by Amdt. 121-3, 
30 FR 3638, Mar. 19, 1965; Amdt. 121-130, 41 FR 47229, Oct. 28, 1976; 
Amdt. 121-227, 56 FR 63762, Dec. 5, 1991; Amdt. 121-251, 60 FR 65929, 
Dec. 20, 1995]