08 - Fire Protection

Question 1

FIRE PROTECTION

1. Which areas of the aircraft have fire extinguishing capability?

Answer 1

• Engines
• APU
• Lower Cargo Compartments

SH 8.010 p1

Question 2

2. What fire protection functions are available without battery power?

Answer 2

None

SH 8.010 p1

Question 3

3. Can you discharge the fire bottles using only battery power?

Answer 3

Yes

SH 8.010 p1

Question 4

4. How is the fire warning bell silenced?

Answer 4

Pressing either Master FIRE WARN button or BELL CUTOUT

SH 8.010 p2

Question 5

5. How is an engine fire extinguished?

Answer 5

By pulling the respective Fire Switch and rotating it. This discharges one of two halon bottles

SH 8.010 p5, 6

Question 6

6. Which systems are affected by pulling an engine fire switch and how are they affected?

Answer 6

The 4 light gray o’head panels
- Closes both assoc engine fuel shutoff and spar fuel shutoff valve
- Closes assoc eng bleed air valve & onside pack valve
- Closes assoc hydraulic fluid shutoff valve
- Trips the assoc generator control relay & breaker
- Disables thrust reverser for related engine
- Arms one squib on each engine fire ext bottle
- Allows the engine fire switch to be rotated for discharge

SH 8.010 p5, 6

Question 7

7. How is a dual loop failure of an Engine Fire Detection System indicated?

Answer 7

An amber FAULT light on the Overheat/Fire Protection Panel

SH 8.010 p3

Question 8

8. How many fire extinguishing bottles are provided for the APU?

Answer 8

One

SH 8.010 p7

Question 9

9. Does the APU have automatic fire extinguishing?

Answer 9

No

SH 8.010 p7

Question 10

10. What happens when pulling the APU fire switch?

Answer 10

• provides a backup to the automatic shutdown feature
• closes the APU fuel shutoff valve
• closes the APU bleed air valve
• closes the APU air inlet door
• trips the APU generator control relay and breaker
• allows the APU fire switch to be rotated for discharge
• arms the APU fire extinguisher bottle squib

SH 8.010 p7

Question 11

11. Where is the APU Fire Ground Control panel located?

Answer 11

Right main wheel well

Question 12

12. What does placing the fire detection TEST switch to FAULT/INOP test?

Answer 12

The systems ability to detect a fault or inop equipment within itself

Question 13

13. What does placing the fire detection TEST switch to OVHT/FIRE test?

Answer 13

The overheat and fire detection loops on both engines

Question 14

14. What is indicated by the illumination of the DETECTOR FAULT light on the CARGO FIRE
    panel?

Answer 14

One or more detectors in the selected detection loop (s) in either cargo compartment has failed

SH 8.010 p13

Question 15

15. What fire protection and extinguishing equipment is available in the lower cargo compartments?

Answer 15

2 halon fire suppression bottles, one high-rate discharge (HRD) and one LRD. The HRD bottle is discharged first, then a 15 minutes timer begins, followed by discharge of the LRD bottle. This provides 195 minutes of fire suppression.

SH 8.010 p10