14 C.F.R. § 25.1155 Reverse thrust and propeller pitch settings below the flight regime.
Title 14 - Aeronautics and Space
Each control for reverse thrust and for propeller pitch settings below the flight regime must have means to prevent its inadvertent operation. The means must have a positive lock or stop at the flight idle position and must require a separate and distinct operation by the crew to displace the control from the flight regime (forward thrust regime for turbojet powered airplanes). [Amdt. 25–11, 32 FR 6913, May 5, 1967]
Title 14: Aeronautics and Space
PART 25—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES
Subpart E—Powerplant
Powerplant Controls and Accessories
§ 25.1155 Reverse thrust and propeller pitch settings below the flight regime.
