14 C.F.R. § 29.1159 Supercharger controls.
Title 14 - Aeronautics and Space
Each supercharger control must be accessible to— (a) The pilots; or (b) (If there is a separate flight engineer station with a control panel) the flight engineer.
Title 14: Aeronautics and Space
PART 29—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY ROTORCRAFT
Subpart E—Powerplant
Powerplant Controls and Accessories
§ 29.1159 Supercharger controls.
