---
kind: "section"
citation: "14 C.F.R. § 125.169"
title: "14"
number: "125.169"
heading: "Fire-extinguishing system materials."
url: "https://uscodex.org/cfr/14/125.169"
---

# §125.169. Fire-extinguishing system materials.

- (a) Except as provided in [paragraph (b)](#b) of this section, each component of a fire-extinguishing system that is in a designated fire zone must be made of fireproof materials.
- (b) Connections that are subject to relative motion between components of the airplane must be made of flexible materials that are at least fire-resistant and be located so as to minimize the probability of failure.

## Notes

### Authority

Authority: 49 U.S.C. 106(f), 106(g), 40113, 44701-44702, 44705, 44710-44711, 44713, 44716-44717, 44722.

### Source

Source: Docket 19779, 45 FR 67235, Oct. 9, 1980, unless otherwise noted.