Flashcards in Fire Deck (12)
How many fire bottles per engine / APU?
Engine: 2 each
Is fire detection available if a loop fails?
Yes, a fault in one loop (A or B) does not affect the warning system.
What happens if both loops fail within 5 seconds?
What happens when a FIRE switch is released out?
- Silences the aural fire warning
- Arms the fire extinguisher squibs
- Closes the LP fuel valve
- Hydraulic fire shut off valve
- Closes engine bleed valve
- Closes pack flow control valve.
- FADEC supply cut
- IDG deactivated (turned off)
Agent DISCH (amber) indicates what?
“DISCH” lights up amber when its fire extinguisher bottle has lost pressure (being discharged).
What are the indications for an ENG FIRE test? And an APU FIRE test.
ENG FIRE test: a continuous repetitive chime sounds, MASTER WARN lights flash. ENG FIRE (APU) warning appears on ECAM. On the fire panel ENG FIRE p/b lights up red, SQUIB lights come on white if discharge supplies are available. DISCH lights come on amber. On the ENG panel (pedestal), the firelights come on red.
On the external fire panel what does the APU SHUT OFF Switch do?
This p/b is used for manual APU emergency shutdown
- The APU LP fuel shutoff valve closes.
- The ECB receives a signal to shutdown sequence (same as the APU automatic shutdown without cool down).
- Silences the external warning horn.
What happens if a lavatory waste bin catches fire?
And lavatory smoke?
When a detector finds smoke in a lavatory, it sends a signal to the CIDS to FWC to cabin and cockpit warnings. Each lavatory waste bin has an automatic fire extinguisher. (Wax type, melts the discharge).
How many fire bottles for CARGO Fire Extinguishing?
1 fire bottle supplies 3 nozzles (1 FWD 2 AFT) on MOST aircraft.
A couple of aircraft have two bottles.
A red disc in the aircraft skin near the APU indicates what?
The agent is NOT discharged / ready to use.
When is white SQUIB light illuminated?
- Squib is armed.