Systems - Fire Protection

Question 1

How many Halon bottle(s) serve engine fire suppression?

Answer 1

2

Question 2

Pulling the engine fire handle does what?

Answer 2

Closes Fuel SOV

Closes Hydraulic SOV

Closes Bleed SOV

Closed Cross Bleed Valve

Arms Halon Bottles

Question 3

Rotating the engine fire handle does what?

Answer 3

Discharges Halon Bottle

Question 4

How many Halon bottle(s) serve APU fire suppression?

Answer 4

1

Question 5

What does pressing the APU EMER STOP button do?

Answer 5

Shuts down the APU and illuminates the APU Fire Extinguisher Pushbutton

Question 6

What button do I press to discharge Halon to the APU?

Answer 6

APU Fire Extinguisher Pushbutton

Question 7

Will the APU automatically shut down for fire? If so, when?

Answer 7

On the ground, after 10 seconds once fire detected.

Question 8

How many fire detectors are in each cargo bin? Smoke Detectors?

Answer 8

FWD: 3 Smoke Detectors

AFT: 2 Smoke Detectors

Question 9

How many Halon bottle(s) serve Cargo fire suppression?

Answer 9

2 (High Rate and Low Rate)

(Low Rate - 75 minute release time to allow for 60 minute diversion)

Question 10

Will any cargo bottle automatically discharge at any time?

Answer 10

In flight, the low rate bottle will automatically begin discharging after 1 minute.

Question 11

How do I discharge the low-rate bottle for a non-annunciated forward cargo fire on the ground?

Answer 11

Three presses of the respective fire extinguishing button.

Question 12

Briefly explain how a LAV SMOKE EICAS message would appear.

Answer 12

Master Warning. LAV SMOKE EICAS, smoke alarm sounds and associated detector light comes on in the affected lavatory, and flashing amber light on the FA panel.

Question 13

Does LAV SMOKE mean the Halon bottle has discharged?

Answer 13

No. Once temperature reaches a certain level in the waste bin, it will automatically discharge.