8- Fire Protection

Question 1

Engine Fire Switches - pull (5)

Answer 1

• closes engine and spar fuel valves
  • closes bleed air valves
  • trips generator off
  • shuts off hydraulic fluid to the engine–driven hydraulic pump
  • arms both engine fire extinguisher bottles

Question 2

CARGO FIRE ARM (FWD) - pull (3)

Answer 2

• arms all cargo fire extinguisher bottles
• turns off both recirculation fans
• shuts down Nitrogen Generation System

Question 3

CARGO FIRE ARM (AFT) - pull (4)

Answer 3

• arms all cargo fire extinguisher bottles
• turns off both the recirculation fans
• inhibits high flow operation of both packs
• shuts down Nitrogen Generation System

Question 4

APU Fire Switch - pull (5)

Answer 4

- closes fuel valve
• trips generator off 
• closes air supply valve
• shuts down APU 
• arms fire extinguisher bottle

Question 5

APU FIRE SHUTDOWN Switch - nose gear (5)

Answer 5

• closes fuel valve 
-trips generator off
• closes air supply valve 
-shuts down the APU
• arms fire extinguisher bottle

Question 6

The main gear wheel wells have a fire detection system, but no fire extinguishing system. The system __will/will not__ detect hot brakes alone, without an associated fire.

Answer 6

will not

Question 7

Overheat detection systems are installed for (3)

Answer 7

• engines
• struts
• pneumatics (ducts in the wing and body areas)

Question 8

There are detector loops in each engine nacelle to provide ______

Answer 8

both fire and overheat detection

Question 9

The fire warning lights remain illuminated as long as _____

Answer 9

the fire signal exists

Question 10

The overheat lights remain illuminated ______

Answer 10

as long as the overheat condition exists

Question 11

There are ___ engine fire extinguisher bottles

Answer 11

two

either or both bottles can be discharged into either engine

Question 12

When an engine fire switch is pulled out, the associated engine (5)

Answer 12

• fuel is shut off
• bleed valves are closed
• generator is tripped off
• hydraulic fluid is shut off to the engine-driven hydraulic pump
• fire extinguishing bottles are armed

Question 13

How many fire detector loops in the APU compartment?

Is there APU overheat detection?

Answer 13

2

no

Question 14

Can the SYS FAIL light and advisory message can be reset to allow monitoring of the remaining systems?

Answer 14

yes

Question 15

When the APU fire switch is pulled out, 
the APU (5)

Answer 15

• fuel is shut off
• bleed air valve is closed
• generator is tripped off
• fire extinguishing bottle is armed
- APU shuts down

Question 16

Does the main gear wheel well have fire detection and protection?

Answer 16

detection and warning only

there is no fire extinguishing system

Question 17

The main wheel well fire detection system consists of ___ fire detection loops

Answer 17

1

Question 18

How many fire bottles for:

Engines -

APU -

Cargo compartments-

Wheel well -

Answer 18

2

1

3

0

Question 19

Pushing the cargo fire bottle discharge switch -

Answer 19

discharges first bottle immediately

second and third bottles metered after 30 min

(second bottle discharges upon landing)

{CBT}

Question 20

Is there any fire detection/protection in the cabin?

Answer 20

each lavatory has a single smoke detector and a fire extinguisher located in the waste container cabinet, with:
• automatic fire extinguisher operation
• no cockpit annunciations of lavatory fire extinguisher operations