Fire Protection Flashcards
How is fire detected in the engines and APU?
Detection works in a loop system which is ran in parallel. The engines and APU have 2 loops. Heat detectors detect abnormally high temperatures and both loops need to detect this to signal a fire.
Where are the fire loops located on the engine?
Nacelle, pylon, core and fan.
Is there a fire extinguisher in the hold?
There is one bottle that can be discharged for all 3 holds via pipes and nozzles. The bottle can be discharged in up to 1 minute.
How is fire detected in the avionics bay?
If smoke is detected for 5 seconds or more, a smoke detector causes a fire warning chime. This smoke can only be removed using the QRH Smoke Removal Checklist.
What happens if the APU fire pb is pushed?
The APU is shut down.
LP fuel valve is closed.
APU fuel pump deactivated.
Aural warning silenced.
Squibs armed.
APU Bleed and Cross Bleed valves closed.
APU Generator is de-activated.
What happens when the ENG 1/2 FIRE TEST pb is pressed?
Repetitive continuous chime sounds. MASTER WARNING lights flash. ENG FIRE warning appears on ECAM.
On the fire panel: ENG 1/2 FIRE pb lights up red. SQUIB lights come on white if discharge supplies avail. DISCH lights come on in amber.
On the ENG MASTER panel: FIRE lights come on in red.
