14 C.F.R. § 29.691 Autorotation control mechanism.
Title 14 - Aeronautics and Space
Each main rotor blade pitch control mechanism must allow rapid entry into autorotation after power failure.
Title 14: Aeronautics and Space
PART 29—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY ROTORCRAFT
Subpart D—Design and Construction
Control Systems
§ 29.691 Autorotation control mechanism.