---
kind: "section"
citation: "14 C.F.R. § 27.1189"
title: "14"
number: "27.1189"
heading: "Shutoff means."
url: "https://uscodex.org/cfr/14/27.1189"
---

# §27.1189. Shutoff means.

- (a) There must be means to shut off each line carrying flammable fluids into the engine compartment, except—
  - (1) Lines, fittings, and components forming an intergral part of an engine;
  - (2) For oil systems for which all components of the system, including oil tanks, are fireproof or located in areas not subject to engine fire conditions; and
  - (3) For reciprocating engine installations only, engine oil system lines in installation using engines of less than 500 cu. in. displacement.
- (b) There must be means to guard against inadvertent operation of each shutoff, and to make it possible for the crew to reopen it in flight after it has been closed.
- (c) Each shutoff valve and its control must be designed, located, and protected to function properly under any condition likely to result from an engine fire.

## Notes

### Amendments

[Doc. No. 5074, 29 FR 15695, Nov. 24, 1964, as amended by Amdt. 27-2, 33 FR 964, Jan. 26, 1968; Amdt. 27-20, 49 FR 6850, Feb. 23, 1984; Amdt. 27-23, 53 FR 34214, Sept. 2, 1988]

### Authority

Authority: 49 U.S.C. 106(f), 106(g), 40113, 44701-44702, 44704.

### Source

Source: Docket No. 5074, 29 FR 15695, Nov. 24, 1964, unless otherwise noted.

### Amendments

[Doc. No. 5074, 29 FR 15695, Nov. 24, 1964, as amended by Amdt. 27-2, 33 FR 964, Jan. 26, 1968; Amdt. 27-20, 49 FR 6850, Feb. 23, 1984; Amdt. 27-23, 53 FR 34214, Sept. 2, 1988]