Flashcards in FUEL Panel Deck (18):
What is the normal in-flight fuel management scheme?
Use center tank first, then the wing tanks
How many fuel pumps are installed (A319/320)?
• 2 in each wing tank
• 2 in center tank
• 1 APU pump to provide fuel to the APU when the tank pumps are off
With full fuel, when do the center tank fuel pumps operate (A319/320)?
• For 2 minutes after BOTH engines are started (if slats are UP will continue to run)
• After slat retraction
• Continue to run for 5 minutes until the center tank is empty or slats are extended
What will cause a FUEL MODE SEL FAULT light?
• Failure of the AUTO mode
• Center tank contains more than 550 lb and either main tank has less than 11,000 lb
What is the approximate fuel capacity of each outer fuel tank (A319/320)?
When do the main tank outer cells drain into the inner tanks (A319/320)?
When the inner tank quantity reaches 1,650 lbs
If only one inner tank reaches 1,650 lb, what happens to the other transfer valve (A319/320)?
All 4 transfer valves open
Once opened to transfer fuel, how are the fuel transfer valves closed?
Automatically at the next refueling operation
How is the IDG cooled?
By fuel from the HP fuel pump drawn in from the fuel manifold and then returned to it’s respective outer tank.
When full the outer tank spills over to the inner tank
If the IDG return fuel fills the wing tanks, what occurs?
The center tank pumps turn off until the wing tank quantity reduces by approximately 1,100 lb
What does an amber FAULT light in the FUEL PUMP pb indicate?
Low fuel delivery pressure
If the wing tank pumps fail, is gravity feeding possible?
Yes – only from the inner wing tank cells
Can fuel be transferred from one tank to another?
Only during ground refueling
With full wing fuel what prevents the IDG fuel from overflowing the wings?
Separate full level switches
Why are the outer wing tanks drained last?
Structural wing bending moment relief
When does the APU fuel pump run?
When the wing or center tank pumps are not on
What does the REFUEL message on the ECAM indicate?
The refueling control panel door is not closed