Fire Protection Flashcards
How many fire detection loops are installed on each engine
Two, dual loops mounted in parallel
How many firex bottles are available for an engine fire
Two
What type of Halon is in the engine firex bottles
Halon 1301 pressurized with dry nitrogen
How is an engine fire detected by the crew
Appropriate ENG Fire push switch light illuminates, fire bell sounds, and an EICAS warning message
What occurs when the ENG Fire Push switch light is pushed
Fuel SOV closes, HYD SOV closes, bleed air SOV close, generator is de-energized and the appropriate squibs are armed
Can we blow both bottles into one engine if necessary
Yes
How many fire detection loops are inside the APU containment case
Two, dual loops mounted in parallel
How is an in-flight APU fire detected by the crew
APU Fire push switch light illuminates, fire bell sounds, and an APU Fire warning message on EICAS
How many firex bottles are available for an APU fire
One
What occurs during an unattended APU fire on the ground
The APU ECU shuts down the APU, 5 seconds later the APU bottle will discharge automatically
How many smoke detectors are there in the aft cargo compartment
Two
How many smoke detectors are there in the fwd cargo compartment
Three
What are the flight deck indications of cargo smoke
Triple chime master warning flashers, smoke aural, smoke aft cargo warning message, or smoke fwd cargo warning message, either fwd or aft cargo smoke push switch lights illuminate
How many firex bottles are there for cargo smoke
Two, one is a slow metered standard bottle that Gould last approximately 60 minutes and the other is a quick discharge bottle
How many smoke detectors are located in the lavatories
One in the fwd and one in the aft
What indication do we have for smoke in a lavatory
Triple chime, master warning flashers, smoke fwd lav or smoke aft lav warning message
What protection do we have for a lavatory waste compartment fire
A firex bottle with heat sensitive capsules that will melt to discharge Halon 1301 directly into the waste compartment
What indication will we get with a waste compartment fire
None, unless it generates enough smoke to set off a smoke detector
Were is a single loop heat detection
Main landing gear well’s
