Fire Protection

Question 0

How is engine fire DETECTION powered?

PROTECTION?

Answer 0

Detection: DC Ess buses 1&2

Protection: Hot Batt Busses 1&2

Question 1

What happens when you pull the fire handle?

Answer 1

Closes associated engine bleed,fuel, and hydraulic shutoff valves.

Question 2

What comprises the engine fire detection system?

Answer 2

Eight pnuematic detector in 2 loops(4 per loop)

Question 3

What comprises the engine fire protection system?

Answer 3

2 fire bottles installed in the wing and fuselage fairing.

Question 4

APU fire detection system?

Answer 4

2 loops with 2 pnuematic detectors( 1per loop)

Question 5

APU fire protection

Answer 5

1 fire bottle
Discharges if one min after alarm or if emergency stop button is pressed with associated APU Fire alarm

On ground will auto shutdown APU 10sec after APU fire indication

Question 6

Cargo fire detection

Answer 6

Fwd cargo has 3 smoke detectors

Aft cargo has 2 smoke detector

Question 7

What happens if smoke is detected in the fwd cargo bay?

6 items

Answer 7

Master warning (triple chime)
Aural warning (bell)
Fwd cargo fire ext. button illuminates 
Cargo air circulation fan shuts off
Cargo outflow valves shut off
Recirculation fans shut off

Question 8

What happens when smoke is detected in recirc bay?

Answer 8

Both recirc. Fans are commanded off
Cargo vent fan off
Cargo outflow valve is closed