Aircraft Fire Protection System Description and Operation

All about Aircraft Fire Protection System. Operation and description of the system. Typical zones on aircraft that have fixed fire detection and/or fire extinguisher system are: Engines and auxiliary power unit (APU) Cargo and baggage compartments Lavatories on transport aircraft Electronic bays Wheel wells Bleed air ducts To detect fires or overheat conditions, detectors are placed in the various zones to be monitored. Fires are detected in the reciprocating engines and small turboprop aircraft using one or more of the following: Overheat detectors Rate-of-temperature-rise detectors Flame detectors Observation by crew members