[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: 14CFR23.207]

[Page 194]
 
                     TITLE 14--AERONAUTICS AND SPACE
 
CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
 
PART 23--AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER 
CATEGORY AIRPLANES--Table of Contents
 
                            Subpart B--Flight
 
Sec. 23.207  Stall warning.

    (a) There must be a clear and distinctive stall warning, with the 
flaps and landing gear in any normal position, in straight and turning 
flight.
    (b) The stall warning may be furnished either through the inherent 
aerodynamic qualities of the airplane or by a device that will give 
clearly distinguishable indications under expected conditions of flight. 
However, a visual stall warning device that requires the attention of 
the crew within the cockpit is not acceptable by itself.
    (c) During the stall tests required by Sec. 23.201(b) and 
Sec. 23.203(a)(1), the stall warning must begin at a speed exceeding the 
stalling speed by a margin of not less than 5 knots and must continue 
until the stall occurs.
    (d) When following procedures furnished in accordance with 
Sec. 23.1585, the stall warning must not occur during a takeoff with all 
engines operating, a takeoff continued with one engine inoperative, or 
during an approach to landing.
    (e) During the stall tests required by Sec. 23.203(a)(2), the stall 
warning must begin sufficiently in advance of the stall for the stall to 
be averted by pilot action taken after the stall warning first occurs.
    (f) For acrobatic category airplanes, an artificial stall warning 
may be mutable, provided that it is armed automatically during takeoff 
and rearmed automatically in the approach configuration.

[Amdt. 23-7, 34 FR 13087, Aug. 13, 1969, as amended by Amdt. 23-45, 58 
FR 42159, Aug. 6, 1993; Amdt. 23-50, 61 FR 5191, Feb. 9, 1996]

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