Fire

Question 1

Engine detection loops

Answer 1

Two loops per engine A&B
Gas filled
Feed info to the FDU
FDU will generate a warning if:
Both loops detect a fire
One loop failed & one loop detects a fire
Both loops have have within seconds of each other

APU is the same

Question 2

Fire alerts

Answer 2

1. CRC
2. red ENG FIRE & LAND ASAP displayed on ECAM
3. Engine page appears on SD
4. Fire light illuminates next to respective ENG MASTER Switch
5. ENG FIRE pb illuminates on overhead panel

APU: APU FIRE light and APU SD page no indication on APU panel rest is the same

Question 3

When FIRE pb is pressed

Answer 3

Silenced CRC
Hydraulic fire valve closes
LP engine fuel valve closes
Respective elec gen deactivates
Respective pack value closes
Respective Eng bleed valve closes
Engine FADEC unpowered
Both fire bottles arm

Question 4

Cargo smoke detectors

Answer 4

Detects smoke particles not heat

Warnings are generated:
Smoke is detected by both
1 detector is inop 1senses smoke

Question 5

Fwd and aft cargo

Answer 5

Fwd: one cavity 2 detectors, no ventilation
Aft: 2 cavities total of 4 detectors, heat and ventilation. Inlet and outlet fan valves close automatically in the event of a fire

Question 6

Cargo halon bottle provides protection for how long?

Answer 6

1 hour

Question 7

LAV Smoke detector

Answer 7

Cockpit indications:
Master Warning
CRC
Red lav smoke on ECAM
Don’t know which lav

Question 8

LAV fire protection

Answer 8

Smoke warnings are fought by portable extinguishers

Each lav has a cabinet fire detector and self contained extinguisher. Completely automatic with no flight deck indications

Question 9

Avionics Smoke

Answer 9

Only smoke detector

Indications:
Single chime
Master caution (yellow)
AVIONICS SMOKE on ECAM
ELEC pages on SD
Amber SMOKE on EMER ELEC PWR panel GEN 1 LINE pb
VENTILATION panel fault light on BLOWER & EXTRACT pb’s