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32 Cards in this Set
- Front
- Back
What does Pulling the Engine Fire Switch do? (6) |
Arms the squibs Closes the two fuel SOVs Closes hydraulic SOV on associated engine and deactivates engine LOW PRESSURE light Closes bleed air SOV Closes RT SOV Trips associated generator |
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What does pulling the APU Fire Switch do? (5) |
Arms the squib Closes fuel SOV Closes Bleed Air SOV Trips APU generator Closes the APU air inlet door |
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How many fire extinguisher bottles do the engines have? |
2 bottles |
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What detection does the engine have? |
Fire and Overheat detection using two loops |
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What detection does the APU have? |
Fire detection ONLY |
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How many fire bottles does the APU have? |
1 |
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How many loops are required to detect an Engine Fire/Overheat? |
2 if both loops are operating. If system is functioning in single loop mode a single loop will trigger the Engine Fire/Overheat |
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If both loops are detected to not be working what light on the engine fire panel will illuminate? |
FAULT |
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What does the APU DET INOP light mean? |
APU Fire detection is not working in the single loop |
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How do you know a bottle has been discharged? |
The associated bottle discharge light will illuminate |
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How is fire detected in the cargo compartments? |
Smoke detectors on both main and lower decks using the same dual loop sensing method as the engines |
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How many fire bottles in the cargo compartment fire system? |
Depending on the airplane, 2 or 1 |
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After pressing the DISCHARGE switch what happens assuming cargo compartment bottles were armed? |
First bottle will rapid discharge, it can take upto 30 seconds as it is pressurising. The second bottle will automatically discharge over a 60 minute period into the selected compartment. If airplane lands, discharge will stop |
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How is fire extinguished on the main deck? |
Suppression (Depressurization) |
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How is the cargo Fire system powered? |
DC Battery bus, so as soon as the battery switch is on. However the bottles are are powered by hot battery bus |
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What cargo compartments use fire bottles to extinguish a fire? |
Lower FWD and AFT |
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What parts of the aircraft have extinguishing systems? |
Engines APU Lavatory Lower Cargo Compartments |
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What fire protection system does the main gear wheel well have? |
Fire Detection ONLY |
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Does the lavatory have fire detection and extinguishing? |
Yes, lavatory smoke detector and a heat activated fire extinguisher |
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If there is smoke detected in the lavatory and the bottle is discharged is there an indication in the flight deck? |
No indication to flight deck on smoke detected or bottle discharged |
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How many loops does the APU have for Fire Detection? |
1 ONLY |
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What happens when you select the MAIN ARMED Cargo Fire switch? |
Energizes power to the Main Deck shutoff valves and mix manifold exhaust shutoff valve |
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Where is the APU ground control panel located? |
Right gear wheel well |
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When does the ENGINE OVERHEAT light extinguish following an overheat condition? |
It drops when the tempreture drops below the onset tempreture |
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Is there a flight deck indication of an engine single loop failure? |
No, perform the SP to check for the individual loop |
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If an engine fire condition exists does the associated ENGINE OVERHEAT light also illuminate? |
Yes |
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Does the airplane need to have power applied to blow an engine or APU bottle? |
No, both extinguishing systems (squibs) are powered from the HOT BATTERY BUS |
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Before doing the FIRE test why must the ground crew be made aware? |
With the APU running, the APU Fire warning horn sounds and warning light on the ground flashes |
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What occurs when smoke is detected in the lavatory? |
Aural warning sounds and red alarm indicator light in the lav illuminates |
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During a cargo Fire test when does the DETECTOR FAULT light illuminate? |
One or more detectors in the loops has failed |
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If you complete the Fire test on DC power will the WHEEL WELL light illuminate during the test? |
No, you need AC power to test the loop in the wheel well |
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Where are the engine fire bottles located? |
Left main wheel well |