Fire Protection Flashcards
When should you test the fire detection system?
FFOD in a new airplane
What areas have fire protection?
Engine 1 Engine 2 APU Forward Cargo Aft Cargo Lavatories
How long after an APU fire is detected will the shutoff valve be automatically closed?
10 seconds
What happens when the fire extinguisher handle is pulled?
Fuel shutoff valve is close
Hydraulic shutoff valve is closed
Bleed shutoff valve is closed
What is the procedure for annunciated forward cargo fire?
Press forward cargo fire extinguisher button once to discharge Halon
What happens when the fire detection handles are pulled?
Turns off: Bleed air SOV Fuel SOV Hydraulic SOV Arms Fire Extinguishing bottles
What does the APU EMER STOP button do?
Closes FUEL SOV
When will the APU automatically shut down in flight?
UFO
Underspeed
FADEC Fult
Overspeed
When will the APU shutdown automatically on the ground?
UFO SHELF
Underspeed
FADEC Fualt
Overspeed
Sensor Fail High Oil Temp EGT Over Temp Low Oil Pressure Fire
If a fire is detected in the APU and is automatically shut down what will happen after 60 seconds?
The Fire Extinguisher light turns on
How many smoke detectors do we have in the forward cabin?
3
How many smoke detectors do we have in the aft cargo?
2
How many fire bottles do we have for the cargo compartments?
2
High rate
Low rate
If there is an annunciated cargo fire in flight, how many times do you have to press the fire extinguisher button to discharge HIGH and LOW bottles?
Once
If there is an annunciated cargo on the ground how many times do you need to press the fire extinguisher button?
Once for high
Twice for low
How many times do you need to press the fire extinguisher button for an un annunciated fire on the ground?
Once to arm
Twice for high
Thrice for low
How do know if there is a fire in the lav?
EICAS message
When do we have to do the fire test?
FFOD in that airplane
What do we have to do if the plane is dark prior to test?
Wait 30 seconds to see if there are any fire protection fail messages on EICAS
What indications should we see when the fire test is done?
6 lights 5 EICAS 2 warning 2 fire 2 aural
What does pulling the fire handles do?
Closes 3 SOV
Fuel, Hydraulic, and Bleed Air
What does turning the handle do?
Each direction discharges a bottle
Can you use 2 bottles on one engine?
Yes
Does the APU have a dedicated fire protection system?
Yes
When will the APU automatically shut down in flight?
UFO
Underspeed, FADEC fault, Overspeed
When will the APU automatically shut down on the ground?
SHELF
Sensor fail, high oil temp, EGT over temp, low oil pressure, fire
Will the APU automatically shut down in flight for an APU fire?
No, in the event you are using the APU for a specific reason
Will the APU automatically shutdown for a fire on the ground?
Yes
How long does it take for APU to shutoff automatically on the ground?
10 seconds
What happens if the APU is running and the fire test is held for 11 seconds?
The APU will be shut down automatically
When does the APU fire light turn on?
60 seconds after the APU is automatically shut down
What does pressing the APU fire switch do?
Discharges APU halon bottle
When will APU emergency stop be illuminated?
APU Emergency stop will show striped at 10 seconds
What kind of cargo bottles do we have?
Hi and low halon bottles
How long does the low rate last?
75 minutes for a 60 min diversion
How many time do you have to press the fire extinguish button for a non annunciated
cargo fire on the ground?
3 times, once to arm, twice to discharge the high bottle, thrice to discharge the lo bottle
How many times do you have to press the fire extinguish button for an annunciated fire in
flight?
Once, the fire arms the system and one press discharges both bottles
What is different about the forward cargo bay compared to the aft cargo bay?
Recirculating fans, ventilation, over flow valve, and 3 smoke detectors
Animals / dry ice in FWD but not at the same time
What areas of the aircraft have fire protection?
Engine, APU, Cargo, Lav
If there is no power applied to aircraft, can we discharge engine fire?
Yes, the fire protection is on the DC hot bus
