14 CFR 125.145
§ 125.145 Firewall construction.
United States · 14 CFR — Aeronautics and Space · Status: effective
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- Citation
- 14 CFR 125.145, § 125.145 Firewall construction, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/57091
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Full text
Each firewall and shroud must—
(a) Be so made that no hazardous quantity of air, fluids, or flame can pass from the engine compartment to other parts of the airplane;
(b) Have all openings in the firewall or shroud sealed with close-fitting fireproof grommets, bushings, or firewall fittings;
(c) Be made of fireproof material; and
(d) Be protected against corrosion.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.