14 C.F.R. § 27.1195 Fire detector systems.
Title 14 - Aeronautics and Space
Each turbine engine powered rotorcraft must have approved quick-acting fire detectors in numbers and locations insuring prompt detection of fire in the engine compartment which cannot be readily observed in flight by the pilot in the cockpit. [Amdt. 27–5, 36 FR 5493, Mar. 24, 1971]
Title 14: Aeronautics and Space
PART 27—AIRWORTHINESS STANDARDS: NORMAL CATEGORY ROTORCRAFT
Subpart E—Powerplant
Powerplant Fire Protection
§ 27.1195 Fire detector systems.