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12 Cards in this Set
- Front
- Back
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How many pounds of fuel do all three tanks hold
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Main Wing 30,100 lbs
Center Wing 11,000 lbs Aft Tank 2,310 lbs Total 43,550 lbs |
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What is the prime redundancy characteristic of the FMQGC (fuel mgt quantity guaging comp)
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It is dual channel
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Can the main AC boost pump operation be manually inhibited from the cockpit
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yes
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Under what three conditions will the DC boost pumps automatically operate
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1. To aid engine feed in the
event of an AC primary pump failure 2. During T/O and landing with the flaps >0 with the landing gear down 3. In flight with a low fuel condition (600 lbs wing) |
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What fuel pumps are located in each of the feed tanks
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Two main primary AC pumps and one DC pump
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Can fuel be manually transfered from the center tank to the feed tanks
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No, there is no way to pump fuel from the center tank to the wings
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Where is each of the fuel tank drain valves located on the aircraft fuselage
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There is one drain valve for each main wing tank on the under side of the feed tank, two under the center wing tank and one beneath the aft fuel tank. 5 total
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What is the purpose of the wing fuel tank relief valves
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They prevent an overpressure condition in the event of a blocked or failed vent or re-fuel shut-off valve
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In the automatic mode when does fuel begin to transfer from the aft tank to the main wing tanks
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When the wing tanks get below 5,500 lbs
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In the fully aoutmatic mode, if an AC pimp in the center tank fails before the fuel is transfered to the main tanks how will the fuel be distributed to both wing tanks to maintain lateral balance
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The remaining AC Pump will continue to pump fuel to its respective wing tank. When an imbalance >400 lbs occurs the fuel computer will begin to xfer fuel to the opposite wing tank to eliminate the imblanace
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What is the normal position of the crossfeed SOV during engine start
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Closed. Fuel for engine start normally comes from the respective DC Aux Pump then the AC Primary pumps
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In the event of a wing fuel transfer valve failure, will the cross-feed valve open automatically to provide wing lateral balance
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No, there is no automatic mode for the cross-feed valve. It is pilot selectable, manual operation only
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