14 C.F.R. § 29.1107 Inter-coolers and after-coolers.
Title 14 - Aeronautics and Space
Each inter-cooler and after-cooler must be able to withstand the vibration, inertia, and air pressure loads to which it would be subjected in operation.
Title 14: Aeronautics and Space
PART 29—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY ROTORCRAFT
Subpart E—Powerplant
Induction System
§ 29.1107 Inter-coolers and after-coolers.