Fire Detection and Protection

Question 1

Describe the APU fire protection

Answer 1

1 bottle

3 pairs of detectors 
2 loops (both need to sense or no discharge)

Auto or Manual

15 sec delay air or grd

if Eng off if either loop detects bottle goes

Question 2

Is there Fire detection and protection for Wheel Well

Answer 2

Detection for Fire and overheat
no Protection
dual detector channels

Question 3

What separates the AFT and Bulk Cargo compartments

Answer 3

Curtin

Question 4

How many fire bottles for the cargo

Answer 4

6

Question 5

Is the Cargo Fire protection on Auto all the time

Answer 5

No Manual on the ground

Question 6

is there fire protection in the OFCR/OFAR

Answer 6

no

just portable hand held extingiusher

Question 7

What is the indication of a Lav fire

Answer 7

EICAS - LAV SMOKE DET

Question 8

Describe the Eng fire system

Answer 8

4 pairs of detectors (2 Channels)

if only one of the pair sense fire it ignors

Fault yellow on the EICAS caution

Question 9

What happens when a Eng fire switch is pulled

Answer 9

Armed Exting
fuel valve closed
Anti ice off
Gen off
HYD off
Thrust rev off

Question 10

Describe the Cargo compartment

Ground and Air

Answer 10

divided into FWD and AFT (AFT and Bulk)
3 Zones

In flight - 2 bottles immediatly
- 4 bottles at a low rate 15 min

land - Manual - 3 discharge simultanously
- 3rd bottle at a reduced rate

Question 11

Why does the Land ALT selector Auto to 8,000

Answer 11

Minimizes agent leak out of compartments