Fire Protection

Question 1

How can the flight crew determine whether the lavatory fire extinguisher has been used

Answer 1

No cockpit indications
Must be inspected by MX
A visual check of the trash can may be to verify if the extinguisher has been used

Question 2

What occurs when the fire handle is pulled

Answer 2

HALF valves shut off
Hydraulic 
Bleed Air
Engine Lip Air 
Fuel

Question 3

How many Halon fire extinguishers are available for the engines

Answer 3

2

May be used by either engine

Question 4

Is engine fire protection available when the aircraft is de-powered?

Answer 4

Yes

Powered by the HOT bus

Question 5

Does the EICAS master warning message “LAV SMOKE” appear during a cockpit fire detection test

Answer 5

NO

Question 6

What does the EICAS master caution “E1-2 FIRE DET FAIL: mean

Answer 6

The fire detection system of the associated has failed. The integrity switch has detected a low-pressure condition in the affected fire loop

Question 7

What messages will be presented on the EICAS after discharging halon into the #1 using the A bottle

Answer 7

E1 EXTBTLA INOP

E2 EXTBTLA INOP

Question 8

What are the indications of a successful Fire Detection Test?

Answer 8

ENG 1(2) FIRE (W)
APU FIRE (W)
BAGG SMOKE (W)
E1 (2) FIREDET FAIL (C)
APU FIREDET FAIL (C)
Master Warning
Master Caution
Both Fire Handles illuminated
BAGG ETXG illuminated
Aural Fire Bell

Question 9

What action is required if the BAGG EXTG button remains illuminated

Answer 9

Wait 6 seconds and repeat the test