Code of Federal Regulations

Title 14 - Aeronautics and Space
Volume: 1Date: 2023-01-01Original Date: 2023-01-01Title: Section 25.977 - Fuel tank outlet.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. - Fuel System.
§ 25.977 Fuel tank outlet. (a) There must be a fuel strainer for the fuel tank outlet or for the booster pump. This strainer must— (1) For reciprocating engine powered airplanes, have 8 to 16 meshes per inch; and (2) For turbine engine powered airplanes, prevent the passage of any object that could restrict fuel flow or damage any fuel system component. (b) [Reserved] (c) The clear area of each fuel tank outlet strainer must be at least five times the area of the outlet line. (d) The diameter of each strainer must be at least that of the fuel tank outlet. (e) Each finger strainer must be accessible for inspection and cleaning. [Amdt. 25–11, 32 FR 6913, May 5, 1967, as amended by Amdt. 25–36, 39 FR 35460, Oct. 1, 1974]