Term
What is the capacity of the center fuel tank? |
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Definition
182.8k lbs (27,290 gals)
82,900 kg (103,290 litres)
(FCOM Vol 2- Rev 2- 12.20.1-2) |
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Term
What is the total capacity of fuel for all tanks? |
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Definition
320,800 lbs (47,890 gals)145,500 kgs (181,270 litres)
(FCOM Vol 2- Rev 2- 12.20.1-2) |
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Term
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Definition
69,000 lbs (10,300 gal each side)
31,300 kgs (38,990 litres each side)
(20,600 gals total)(62,600 litres total)
(FCOM Vol 2- Rev 2- 12.20.1-2) |
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Term
What is displayed on the EICAS when the fuel jettison switch is armed? |
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Definition
Fuel TO REMAIN is displayed in magenta in place of fuel temp, the value depicted is calculated to yield max landing weight.
(FCOM Vol 2, Rev 2- 12.10.6 & 12.20.2 & 7-8) |
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Term
What do you do to jettison fuel to a weight lower than max landing weight? |
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Definition
Select the fuel TO REMAIN you desire by pulling the selector switch out and manually selecting the amount of fuel you want remaining after the dump.
(FCOM Vol 2, Rev 2- 12.20.7) |
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Term
| What is the minimum fuel to remain that the system will allow? |
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Definition
8,500 lbs/ 3,800 kgs
N704GT-5,200 kgs
(FCOM Vol 2, Rev 2- 12.20.8) |
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Term
What fuel pump source is available to the APU? |
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Definition
There is a DC fuel pump in the left main for APU start when no AC is available.
(FCOM Vol 2, Rev 2- 12.20.3) |
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Term
How many pumps are in the left main tank? |
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Definition
4 - counting the jettison and DC pumps.
(FCOM Vol 2, Rev 2- 12.20.2 & 7) |
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Term
What is the sequencing of fuel usage with center tank fuel? |
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Definition
Center first, then wing tanks.
(FCOM Vol 2, Rev 2- 12.20.3) |
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Term
What makes the Center tanks sequence fuel before the main tanks? |
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Definition
Center tank pumps are override/jettison pumps with higher pressure than the wing tank pumps.
(FCOM Vol 2, Rev 2- 12.20.3) |
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Term
What is the fuel scavenge system? |
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Definition
Center tank fuel is transferred to the mains by the savage system.
[Fuel scavenge flow normally occurs with- main tank FUEL PUMPS switches ON main tank quantity less than 52,600 pounds center tank quantity less than 35,000 pounds Fuel scavenge operates for a timed interval or until the airplane is on the ground.]
(FCOM Vol 2, Rev 2- 12.20.3-4)
(reference needed for bracketed items) |
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Term
What functions does the DC pump provide besides for the APU? |
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Definition
It starts automatically in flight with dual engine failure to provide fuel for APU auto start, and provides some fuel pressure to help start the left engine.
(FCOM ???? Vol 2) |
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Term
During preflight with all fuel pumps "OFF" you notice the left forward fuel boost pump pressure light is not illuminated. What causes this? |
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Definition
This means the APU is running. With the APU switch ON, the left forward DC pump comes on automatically to supply the APU fuel if AC power is unavailable. So the left forward fuel pressure light is not illuminated even though the switch is OFF.
(FCOM Vol 1, Rev 2- NP.21.24)
(FCOM Vol 2, Rev 2- 12.20.3) |
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