14 C.F.R. § 25.1522 Auxiliary power unit limitations.
Title 14 - Aeronautics and Space
If an auxiliary power unit is installed in the airplane, limitations established for the auxiliary power unit, including categories of operation, must be specified as operating limitations for the airplane. [Amdt. 25–72, 55 FR 29786, July 20, 1990]
Title 14: Aeronautics and Space
PART 25—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES
Subpart G—Operating Limitations and Information
Operating Limitations
§ 25.1522 Auxiliary power unit limitations.
