Fire Protection - General
Introduction
There are Fire detection and extinguishing systems for the:
- Cargo Compartments
- As installed - Lavatories
The Main Gear Wheel Wells have a Fire Detection system, but no fire extinguishing system. The system will not detect hot brakes alone, without an associated fire.
Overheat detection systems are installed for both engines, struts and pneumatic ducts in the wing and body area.
Refer to:
- Air Systems - Equipment Cooling, for a description of equipment smoke evacuation.
- Air Systems - Pneumatics, for a description of bleed duct leak and overheat protection.
Fire and Overheat Detection System Fault Test
Automatic testing of the engine fire and overheat detectors, APU fire detectors and cargo compartment smoke detectors occurs when electrical power is initially applied. The FIRE/OVHT test panel permits manual testing of the various fire and overheat sensors.
