Fuel System Flashcards
How many fuel tanks are on the 737?
3 tanks – left-wing, center, and right-wing.
How much fuel does each wing tank hold?
9,100 lbs each.
How much fuel does the center tank hold?
30,500 lbs.
What is the total fuel available on the 737?
48,700 lbs.
What is the maximum planned imbalance between the wing tanks on the ground?
None.
What is the maximum planned imbalance between the wing tanks in flight?
1,000 lbs.
In what order are the tanks filled when fueling?
Wing tanks must be filled before adding fuel to the center tank.
How many electrical fuel boost pumps are on the 737?
6 total – 2 in each tank (1 forward and 1 aft in each tank).
Can the 737 dump fuel?
No, there is no fuel dump system on the 737.
What can the 737 do in an emergency regarding fuel?
Burn fuel (in a hold) or make an overweight emergency landing.
Can fuel be transferred from tank to tank while in flight?
No, but you can cross feed to maintain balance.
How do pilots cross feed fuel?
Pilots control which tank each engine pulls fuel from.
Which fuel tanks normally feed which engines?
Right tank feeds the right engine and left tank feeds the left engine.
Can any fuel tank feed any engine?
Yes, because of the cross feed ability.
