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20 Cards in this Set
- Front
- Back
What systems have dedection and protection? |
Engines APU Cargo compartments Lavatories |
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How are the cabin and cockpit protected from fire? |
Cockpit has 1 Halon fire extinguisher Cabin has 4 extinguishers (1 Fwd, 2 Aft) halon and 1 water (Aft) |
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How are the engines and APU protected from fire? |
Engines have 2 Halon bottles APU has 1 |
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Can the engine bottles both be used for the same engine? |
Yes. Or 1 for each |
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What is the power source for APU and engine detection and protection? |
DC ESS bus for APU pro/detection and engine detection HOT BATT bus for engine protection |
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Engine detection system |
8 pneumatic detectors 2 loops per engine |
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APU detection system |
2 pneumatic fire detectors 2 loops |
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Fire test |
Press test button 3-10 secs (>10 APU on will shut it down) Fire Bell,Triple Chime 2 handles, 2 cargo smoke, APUextinguisher and EMER STOP (top half) botton, 2 master warning, 5 CAS messages 2 ITT gauges |
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What happens when an engine fire handle is pulled? |
Fuel, hydrolic, and bleed, SOVs close on respective engine |
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APU fire indications |
Fire Bell Red stripe in EMER STOP button APU FIRE EICAS message |
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APU fire on ground |
Auto shut down |
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APU EMER STOP pushed after a fire is detected |
APU shuts off immediately (no 1 min cooldown) APU fuel SOV closes APU FIRE EXTG button illuminates |
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APU EMER STOP not pushed after a fire is detected |
After 1 min APU FIRE EXTG button illuminates |
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Will APU extinguisher automatically discharge? |
No |
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Cargo compartment smoke detectors |
3 fwd (3306 lbs) 2 aft (2535) |
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What happens if fwd cargo smoke detectors trip? |
Recirculation fan shuts off (to keep O² getting in) And ventilation outflow valve closes (to keep Halon in, not escaping to the Cabin) |
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Cargo protection? |
2 Halon bottles. 1 high-rate, immidiate. 1 low-rate, over 60 min. Both can be directed to either compartment. But only one compartment selected. |
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Cargo protection in flight vs on ground? Once cargo extinguishing button is pushed. |
High rate, 1 min wait then low-rate. On the ground low-rate does not automatically discharge. |
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Is there a way around the 1 min wait for the low-rate cargo Halon bottle in flight? |
Push the Cargo Extinguishing button a 2nd time. Also how you discharge it weight on wheels |
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How are the lavs protected? |
Heat sensitive extinguishers in the waste bins, go off at a pre determined temp. |