Federal Aviation Regulations
Sec. 125.151 — Powerplant fire protection.
(a) Designated fire zones must be protected from fire by compliance with §§125.153 through 125.159.(b) Designated fire zones are—
(1) Engine accessory sections;
(2) Installations where no isolation is provided between the engine and accessory compartment; and
(3) Areas that contain auxiliary power units, fuel-burning heaters, and other combustion equipment.
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