Fuel (320)

Question 1

With fuel in the center tank, when do the Center Tank Pumps run with the MODE SEL in AUTO?

Answer 1

• Center tank pumps run at engine start for 2 minutes
• Before/ after engine start, the pumps run with slats retracted and fuel in the center tank.
• Center tank pumps stop 5 minutes after tank empty (low level reached)

Question 2

Does Center Tank fuel on the A321 directly feed the engines?

Answer 2

• No

- Primary difference = 320 fuel goes directly to engines, 321 fuel goes to wing tanks

Question 3

What is indicated by a FAULT light in a FUEL PUMP switch?

Answer 3

Illuminates amber with ECAM caution when delivery pressure drops

Question 4

If a fuel pump FAULT light illuminates in flight, what will allow the engines to continue to run?

Answer 4

Yes - gravity feed

Question 5

What is indicated by the white ON X FEED light?

Answer 5

In transit - valve is opening

Question 6

What is indicated by the blue OPEN X FEED light?

Answer 6

Valve is fully open

Question 7

In flight, with fuel in both wing tanks, if all tank pumps failed, would the engines continue to run?

Answer 7

Yes

Gravity feed from wing tanks ONLY

Question 8

With the MODE SEL in the AUTO position and fuel in the center tank, will fuel feed directly to the engine from the center tank? (A321)

Answer 8

No. Fuel transfers from the center tank to the wing tanks to feed the engines.

Question 9

What is represented by a FAULT light in the Center Tank MODE SEL pushbutton? [A321]

Answer 9

With the MODE SEL pb in AUTO, Center Tank Fuel is not being transferred to the wing tanks when it should be. (The center tank has more than 550 lbs of fuel and the left wing tank has less than 11,000 lbs).