Code of Federal Regulations

Title 14 - Aeronautics and Space

Volume: 1Date: 2023-01-01Original Date: 2023-01-01Title: Section 25.1163 - Powerplant accessories.Context: Title 14 - Aeronautics and Space. CHAPTER I - FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION. SUBCHAPTER C - AIRCRAFT. PART 25 - AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES. Subpart E - Powerplant. - Powerplant Controls and Accessories.

Code of Federal Regulations / Title 14 - Aeronautics and Space / Vol. 1 / 2023-01-01332

§ 25.1163 Powerplant accessories. (a) Each engine mounted accessory must— (1) Be approved for mounting on the engine involved; (2) Use the provisions on the engine for mounting; and (3) Be sealed to prevent contamination of the engine oil system and the accessory system. (b) Electrical equipment subject to arcing or sparking must be installed to minimize the probability of contact with any flammable fluids or vapors that might be present in a free state. (c) If continued rotation of an engine-driven cabin supercharger or of any remote accessory driven by the engine is hazardous if malfunctioning occurs, there must be means to prevent rotation without interfering with the continued operation of the engine. [Doc. No. 5066, 29 FR 18291, Dec. 24, 1964, as amended by Amdt. 25–57, 49 FR 6849, Feb. 23, 1984]