---
kind: "section"
citation: "14 C.F.R. § 25.977"
title: "14"
number: "25.977"
heading: "Fuel tank outlet."
url: "https://uscodex.org/cfr/14/25.977"
---

# §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.

## Notes

### Amendments

[Amdt. 25-11, 32 FR 6913, May 5, 1967, as amended by Amdt. 25-36, 39 FR 35460, Oct. 1, 1974]

### Authority

Authority: 49 U.S.C. 106(f), 106(g), 40113, 44701, 44702 and 44704; Pub. L. 115-254, 132 Stat 3281 (49 U.S.C. 44903 note).

### Source

Source: Docket No. 5066, 29 FR 18291, Dec. 24, 1964, unless otherwise noted.

### Amendments

[Amdt. 25-11, 32 FR 6913, May 5, 1967, as amended by Amdt. 25-36, 39 FR 35460, Oct. 1, 1974]