# Shared Flashcard Set

## Details

ATLAS B777 Fuel
Fuel
13
Aviation
Professional
05/25/2022

Term
 What is the capacity of the center fuel tank?
Definition
 182.8k lbs (27,290 gals) 82,900 kg (103,290 litres)   (FCOM Vol 2- Rev 2- 12.20.1-2)
Term
 What is the total capacity of fuel for all tanks?
Definition
 320,800 lbs (47,890 gals)145,500 kgs (181,270 litres)   (FCOM Vol 2- Rev 2- 12.20.1-2)
Term
 Main fuel tank capacity
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)
Term
 What is displayed on the EICAS when the fuel jettison switch is armed?
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)
Term
 What do you do to jettison fuel to a weight lower than max landing weight?
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)
Term
 What is the minimum fuel to remain that the system will allow?
Definition
 8,500 lbs/ 3,800 kgs N704GT-5,200 kgs   (FCOM Vol 2, Rev 2- 12.20.8)
Term
 What fuel pump source is available to the APU?
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)
Term
 How many pumps are in the left main tank?
Definition
 4 - counting the jettison and DC pumps.   (FCOM Vol 2, Rev 2- 12.20.2 & 7)
Term
 What is the sequencing of fuel usage with center tank fuel?
Definition
 Center first, then wing tanks.   (FCOM Vol 2, Rev 2- 12.20.3)
Term
 What makes the Center tanks sequence fuel before the main tanks?
Definition
 Center tank pumps are override/jettison pumps with higher pressure than the wing tank pumps.   (FCOM Vol 2, Rev 2- 12.20.3)
Term
 What is the fuel scavenge system?
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)
Term
 What functions does the DC pump provide besides for the APU?
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)
Term
 During preflight with all fuel pumps "OFF" you notice the left forward fuel boost pump pressure light is not illuminated. What causes this?
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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