Fire Protection Flashcards
What are all the different locations that can detect/protect against fire?
The engines
The APU
The cargo compartments
Both lavatories
(T/F) Each cargo compartment has a separate extinguishing system
False. There is one extinguishing system for both compartment, which is built around 2 fire extinguishing bottles
(T/F) The lavatory waste bin is equipped with a fire extinguisher that will automatically deploy in the event of a fire
True
The engine fire detection system is equipped with a ____ (single/dual) loop system
Dual
(T/F) Both loops are required to detect a fire for the bell to sound, under normal conditions
True
(T/F) Both loops are required for dispatch of an aircraft, this is because both loops must detect a fire and if one is inop. the bell would never go off, even if the engine is on fire.
False. If one loop is inoperative and the operative loop detects a fire the bell will sound
What would ENG X FIRE DET FAIL mean as an EICAS message?
Both fire detection loops have failed
What are ALL the indications of an engine fire?
MASTER WARN will illuminate Fire bell will sound ENG X FIRE on EICAS FIRE on ITT spool on EICAS Red light in fire handle
Pressing the TEST button on the fire panel will do what?
Illuminate both fire handles Illuminate both FWD and AFT cargo smoke buttons Illuinate APU FIRE button MASTER WARNING ENG 1 FIRE on EICAS ENG 2 FIRE on EICAS APU FIRE on EICAS CRG FWD SMOKE CRG AFT SMOKE Aural fire bell FIRE on both ENG 1 and 2 ITT on EICAS
Performing the fire test with the APU running should not last more than __ seconds, otherwise the APU will shut-down
10 seconds
There are a total of ___ bottles for the engine fire extinguishing system
2
What message on EICAS will appear when an engine fire bottle has been discharged
ENG FIREXBTL A(B) DISCH
Blue
The APU fire detection system has __ loops with ___ detector
2 loops with 1 detector. They detect fire in the same area
If there is an APU fire, what are ALL the indications?
APU FIRE on EICAS
Fire bell
MASTER WARNING
Red bar on APU EMER STOP
What happens when you push the APU EMER STOP if the APU is on fire?
The switch will change from a red bar to a white bar
The APU FIRE button will illuminate
If the MAU doesn’t detect the EMER STOP button pushed within ___ seconds the APU FIRE button will illuminate
60 seconds
When on the ground, if the APU detects a fire it will automatically shutdown if the EMER STOP button is not pressed within ___ seconds
10 seconds
APU FIRE DET FAIL on EICAS means what?
Both APU fire loops have failed
There is ___ fire extinguishing bottles for the APU
1
APU FIREX FAIL on EICAS means what?
Some part of the APU fire bottle has failed
When the APU EMER STOP button is pressed, what message should appear on EICAS?
APU FUEL SOV CLOSED
What message should appear on EICAS when you discharge the APU fire bottle?
APU FIREXBTL DISCH
In the rear cargo compartment, smoke must be detected by ___ smoke detectors in order to get an alarm
2
What are ALL the indications of a fire in the rear cargo compartment?
MASTER WARNING Fire bell AFT CARGO SMOKE button illuminates CRG AFT SMOKE on EICAS in red CRG AFT FIREX HI ARM on EICAS in blue
What happens if only one detector in the FWD cargo compartment detects smoke?
The Re-circulation fan is shut off for 60 seconds. If in the next 45 seconds another smoke detector detects smoke the fire is considered confirmed
If no smoke is detected in the 45 second window the system is considered failed
(T/F) If only one smoke detector is operative in each compartment and it detects smoke, it will give a warning to the cockpit immediately
True
CRG AFT (FWD) FIRE SYS FAIL on EICAS means what?
All the smoke detectors in the respective compartment are failed
This is a caution message
CRG FIRE PROT FAULT on EICAS means what?
A smoke detector is faulty and you’re on the ground. There is still at least one detector left in that compartment
If you see CRG FWD VENT FAIL message during a fire test, this means what?
The FWD cargo vent fan did not shut down during the test
What is the difference between the high rate discharge and the low rate discharge bottles in the cargo compartments?
The high rate will fill the cargo compartment with the necessary halon to extinguish the fire
The low rate will prevent reignition of a fire for up to 60 minutes.
When you have a cargo fire warning,
Pushing the cargo fire button once does what?
Pushing it a second time does what?
The first push will deploy the high rate discharge bottle into the respective cargo compartment. The low rate will arm and automatically discharge after one minute.
Pushing the cargo button a second time bypasses the one minute delay for the low rate discharge bottle and discharges it immediately
What happens if you push the cargo fire button without a cargo fire warning?
The first push will arm the bottle. It will automatically disarm after 2 minutes. If you push the button a second time it will automatically discharge the HRD bottle. If in flight the LRD bottle will fire automatically after 4 minutes. If on the ground a third push of the button will fire the bottle
What EICAS message would you see if there was smoke in the lavatory?
LAV SMOKE in red
This would also have a master warning sound
If a lavatory smoke test is conducted the master warning and EICAS message will remain for ___ seconds after releasing the test button
7 seconds
What does LAV SMOKE FAIL on EICAS mean?
The lavatory smoke fire test failed
The waste bin fire extinguisher will automatically discharge at ___C
78 C
The landing gear overheat detection is a ___ (single/dual) loop system
Dual
