Fire Protection

Question 1

How many Firex bottles are installed?

Answer 1

2

Question 2

The fire bottles can be discharged into _____.

Answer 2

1 into either engine; #2 into either engine and APU

Question 3

Firex bottle #___ provides protection for the APU.

Answer 3

2

Question 4

Describe how the fire detection system recognizes a leak or fire.

Answer 4

As temperature increases, the resistance in the fire detection loop decreases below a limit. When the Firex control unit detects this
increase, a warning indication is generated.

Question 5

The 6 areas of the aircraft that are monitored for leaks and/or fire include: _____.

Answer 5

-Engine nacelles/Core/Pylon/Gearbox
-Main Landing Gear Bay
-Baggage Compartment
-Bleed Air Supply
-Wing Anti-ice Supply
-APU

Question 6

The areas that have fire extinguishing are _____ and _____.

Answer 6

-Engines
-APU

Question 7

Is there a baggage compartment fire extinguishing system?

Answer 7

No

Question 8

Is there a lav smoke detector?

Answer 8

-No
-Baggage compartment smoke is detected
through vents.

Question 9

Pushing the engine fire PBA performs what 6 actions?

Answer 9

-closes Fuel
-closes Bleed
-closes HYD SOVs,
-arm EXT 1 and 2 squibs
-deactivate the generator
-command engine shutdown via FADEC

Question 10

Is the fire detection system normally tested?

Answer 10

No; test only during abnormal situations when prompted by the checklist or MX

Question 11

The extinguishing agent used in the Fire Extinguishing System is _____

Answer 11

Halon 1301