What are the loops for engine and APU fire detection system?
Loop A & B with a FDU (Fire detection unit
How many fire bottles per engine ?
2
How many fire extinguisher bottles for APU?
1
What system only has smoke detection?
Avionics system
Lavatory protection system ?
One smoke detector in each Lavatory linked to SDCU. A automatic fire extinguisher in lavatory waste bin.
How many loops to send a fire signal ?
Both or one if the other has failed.
how many seconds between each loop to detect flame?
5 seconds
What does activation of fire push button sequence ?
- Silences aural fire warning
- Arms the fire extinguisher
- Closes LP fuel valve
- Closes hydraulic fire shut off valve
- Closes engine bleed valve
6.Closes Pack flow control valve - Cuts off fadec power Supply
- Deactivates the IDG
What happens when fire test button pressed?
- CRC sounds
- The Master Warning lights flash.
- ENG fire warning appears on ECAM
- on fire panel Eng1(2) fire pb-sw lights up red / Squib lights come on white if discharge supplies are available / Disch lights come up amber
- Pedestal - fire lights come on red
*Lights do not illuminate if Loop fault
APU fire PB activates?
-Shuts down APU
-Silences aural warning
-Arms the Squib light
-Closes the LP fuel valve
-Shuts off APU fuel pump
-Closes APU Bleed valve and X-Bleed valve and deactivates APU generator
Caro compartment detectors?
2 forward, 4 AFT
How many Squib bottles in cargo compartment?
2
