14 C.F.R. § 27.991 Fuel pumps.
Title 14 - Aeronautics and Space
Compliance with §27.955 may not be jeopardized by failure of— (a) Any one pump except pumps that are approved and installed as parts of a type certificated engine; or (b) Any component required for pump operation except, for engine driven pumps, the engine served by that pump. [Amdt. 27–23, 53 FR 34213, Sept. 2, 1988]
Title 14: Aeronautics and Space
PART 27—AIRWORTHINESS STANDARDS: NORMAL CATEGORY ROTORCRAFT
Subpart E—Powerplant
Fuel System Components
§ 27.991 Fuel pumps.
