Fire Protection

Question 1

How many Engine Fire extinguishers are provided?

Answer 1

4: 2 on each wing

Question 2

Pressing FIRE CARGO FWD ARM switch causes what actions:

Answer 2

-2 packs are automatically shutdown
-arms the lower cargo compartment extinguishers
-configures equipment cooling to override mode
-turns off airflow and heat to the lower cargo compartment
-closes master trim air valve

Question 3

How many fire extinguisher bottles are provided for the FWD + AFT lower cargo compartment

Answer 3

4 in total.
Initial DISCHARGE releases 2 immediately
Subsequent 2 release after a brief delay, or upon touchdown

Question 4

How many APU fire bottles are provided?

Answer 4

One

Question 5

What action discharges an APU Fire Ext?

Answer 5

-Rotate handle OR
-Once fire protection handle pulled: Press DISC OR
-Some aircraft will auto discharge when fire detected on the ground

Question 6

Is there smoke detectors in the crew rest areas?

Answer 6

Yes. Aural warning goes off when smoke detected

Question 7

What unlocks the Engine Fire Switch?

Answer 7

-Fire Warning
-Fuel control switch in CUTOFF
-Pushing the Override switch

Question 8

What does arming the FWD CARGO Fire switch do on Pax Aircraft?

Answer 8

-Arms cargo fire extinguisher
-Turns off pack 3
-Equipment cooling to override mode
-Turns off airflow and heat to lower cargo compartments
-Turns off NGS

Question 9

How many fire extinguisher bottles in the FWD/AFT cargo compartment for the -8?

Answer 9

Six

Question 10

Can you shut down the APU from outside the airplane?

Answer 10

Yes.
Location: right body gear well is the APU ground control fire protection panel.

Question 11

Is the engine fire/overheat detection system a single loop or dual loop system?

Answer 11

Dual loop.
Normal ops, both loops must detect fire/overheat to cause warning -unless configured for single loop ops.