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Title 14: Aeronautics and Space
CHAPTER I: FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
SUBCHAPTER C: AIRCRAFT
PART 23: AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES
Subpart D: Design and Construction
: Control Systems
23.679 - Control system locks.
If there is a device to lock the control system on the ground or water:
(a) There must be a means to?
(1) Give unmistakable warning to the pilot when lock is engaged; or
(2) Automatically disengage the device when the pilot operates the primary flight controls in a normal manner.
(b) The device must be installed to limit the operation of the airplane so that, when the device is engaged, the pilot receives unmistakable warning at the start of the takeoff.
(c) The device must have a means to preclude the possibility of it becoming inadvertently engaged in flight.
[Doc. No. 26269, 58 FR 42164, Aug. 6, 1993]
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