14 C.F.R. § 23.1153 Propeller feathering controls.
Title 14 - Aeronautics and Space
If there are propeller feathering controls installed, it must be possible to feather each propeller separately. Each control must have a means to prevent inadvertent operation. [Doc. No. 27804, 61 FR 5138, Feb. 9, 1996]
Title 14: Aeronautics and Space
PART 23—AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES
Subpart E—Powerplant
Powerplant Controls and Accessories
§ 23.1153 Propeller feathering controls.
