Fire Protection Flashcards
A total of ___ bottles are available to extinguish an engine fire, and _____ bottles available to extinguish an APU fire.
2,1
During normal operations, both engine overheat detector loops must detect a fire before a warning generates (T/F).
True
Describe the fire bottle discharge with an annunciated forward cargo fire in flight.
The high rate bottle discharges first, followed by the low rate bottle one minute later.
What are the indications that the lavatory waste bin extinguisher has discharged?
There is no flight deck or cabin indication that the bottle has discharged
What aircraft systems have fire detection and protection?
Engines, APU, cargo compartments, lavatories
Pushing the test button on the fire extinguisher will test which systems?
Cargo smoke detection, engine fire detection, APU fire detection
What overhead panel indications display during the fire test?
CARGO SMOKE FWD Extinguisher CARGO SMOKE AFT Extinguisher APU FIRE APU EMER STOP (Upper half) ENGINE 1 FIRE HANDLE ENGINE 2 FIRE HANDLE
What should be seen/heard during the fire test?
6-2-2-7
Overhead Panel: FWD CARGO SMOKE AFT CARGO SMOKE APU EMER STOP APU FIRE ENGINE 1 FIRE HANDLE ENGINE 2 FIRE HANDLE
Aural Warnings
Continuous fire bell
Triple chime
Glareshield:
Master Warning Left
Master Warning Right
EICAS: CARGO SMOKE FWD CARGO SMOKE AFT ENGINE 1 FIRE ENGINE 2 FIRE APU FIRE ITT GAUGE 1 FIRE ITT GAUGE 2 FIRE
What happens if you do a fire test with the APU running and you hold the test button for more than 10 seconds?
APU will shut down
What is available in the flight deck to combat a fire?
A handheld fire extinguisher
How is the cabin protected from fire?
Four handheld fire extinguishers (2 forward and 2 aft)
Can both engine fire extinguishing bottles be used for one engine if needed?
Yes
How many fire extinguishing bottle shots do you have for the engine
2, A and B. Both bottles can be used for one engine, or one bottle on each engine.
What does pulling an engine fire handle do?
Closes the respective engine fuel shutoff valve
Closes the respective hydraulic shutoff valve
Closes the respective bleed shutoff valve
Closes the crossfeed valve
Does pulling an engine fire handle work without power on the aircraft?
Yes, fire bottles, fuel SOV, hydraulic SOV are on the HOT BATT BUSES
Does pulling the engine fire handle discharge the bottle?
No
Describe the engine and APU fire detection system
Engine and APU are monitored by two detector loops
What are the initial indications of an APU fire?
Fire bell and master warning triple chime, red stripe in the APU EMER STOP button, APU FIRE EICAS and 2 master warning lights
On the ground, the APU will shut down automatically ______ seconds after the fire condition is sensed
10
When will the APU automatically shut down on the ground for a fire?
10 seconds after fire detection and the APU EMER STOP button has not been pressed
Will the APU automatically shut down in flight for a fire?
No
What happens when the APU EMER STOP button is pushed after a fire has been detected?
APU shuts down immediately without a one minute cooldown.
APU shutoff valve closes
APU FIRE EXTG button illuminates
What happens if the APU EMER STOP button is not pushed after a fire has been detected?
After one minute, the APU FIRE EXTG illuminates.
On the ground, the APU will automatically shut down after 10 seconds.
What does it take for the APU FIRE EXTINGUISHER light to illuminate?
APU EMER STOP button has been pushed in when an APU fire is detected, or one minute after detection with no pilot action
