Fuel

Question 1

How many jet pumps are in the system? Where?

Answer 1

8 Jet Pumps total each side/16 total aircraft.
3 jet transfer pumps in each outer wings.
3 jet transfer pumps in the inner wings.
2 jet booster pumps in the feeder tanks.

Question 2

How is the fuel shutoff valve closed?

Answer 2

Relevant thrust lever or Fire Button.

Question 3

How can you transfer fuel from one wing tank group to the other?

Answer 3

On the ground with the refuel defuel panel, need someone in the cockpit to turn on the ELPMP.

Question 4

If operating the APU without the ELPMP pump on you should make sure?

Answer 4

You do not deplete the feeder tank if you are on a hill.

Question 5

Whats the max fuel the airplane can take?

Answer 5

Auto pressure @ 50 psi to 7,800 lbs.

7,970 lbs. from manual or over wing refueling @ 20 psi max once over 7,800 lbs.

Question 6

Whats the max defuel pressure?

Answer 6

-10 psi.

Question 7

What are the alerts to a fuel imbalance?

Answer 7

At 260 lbs. you get a BLUE cas msg; “FUEL BALANCE”

At 360 lbs. you get an AMBER cas msg; “FUEL ASYM”

Question 8

What opens and closes the motive flow valve in the engine?

Answer 8

JET PMP buttons