14 CFR 29.679 - Control system locks.
If there is a device to lock the control system with the rotorcraft on the ground or water, there must be means to—
(a) Automatically disengage the lock when the pilot operates the controls in a normal manner, or limit the operation of the rotorcraft so as to give unmistakable warning to the pilot before takeoff; and
Title 14 published on 2014-01-01
no entries appear in the Federal Register after this date.