Fire Protection Flashcards
What areas have fire extinguishing protection?
- cargo compartments
- engines
- APU
- lavatories
- cockpit and cabin via portable extinguishers
How many fire sensing elements on the aircraft?
‐ Three or four (as installed) engine fire sensing elements, in the pylon nacelle, in the engine core, and in the engine fan section
‐ One fire sensing element in the APU compartment
How many fire extinguishing bottles?
- 4 engine bottles (2 per engine)
- 1 APU bottle
- 1 or 2 cargo compartment bottles
What happens when ENG 1(2) FIRE pb is pressed?
‐ Silences the aural fire warning ‐ Arms the fire extinguisher squibs ‐ Closes the low-pressure fuel valve ‐ Closes the hydraulic fire shut off valve ‐ Closes the engine bleed valve ‐ Closes the pack flow control valve ‐ Cuts off the FADEC power supply ‐ Deactivates the IDG
When the APU FIRE pb is pressed
‐ Shuts down the APU
‐ Silences the aural warning
‐ Arms the squib on the APU fire extinguisher
‐ Closes the low-pressure fuel valve
‐ Shuts off the APU fuel pump
‐ Closes the APU bleed valve and X bleed valve
- deactivate the APU gen
What happens when Smoke is detected in the avionics?
When smoke is detected for more than 5 s:
‐ The Single Chime (SC) sounds
‐ The MASTER CAUTION lights flash
‐ The ECAM AVIONICS SMOKE alert triggers
‐ SMOKE light of the GEN 1 LINE pb-sw comes on
‐ FAULT lights of the BLOWER pb-sw and the EXTRACT pb-sw come on
How many smoke detectors in the cargo compartments?
- Two smoke detectors that are in the forward cargo compartment ceiling panel
- Four smoke detectors that are in the aft cargo compartment ceiling panel
When is the 2nd bottle discharge in the cargo compartment?
- 60 min after the discharge of AGENT 1, the DISCH AGENT 2 light comes on to indicate that the flight crew has to discharge AGENT 2
- A flow metering system controls the discharge of bottle 2 over 90 mins
How is SMOKE detected in the Avionics Bay?
Via one smoke detector in the extraction duct of the avionics ventilation system
