Fuel

Question 1

What does a Main Tank Pump PRESS light and associated EICAS message indicate?

Answer 1

Fuel output pressure low with the pump selected ON, or

Main Tank Pump switch OFF

Question 2

What does a Center Pump PRESS light and associated EICAS message indicate?

Answer 2

No center tank fuel remaining, output pressure low with
the pump selected ON or respective N2 or N3 (RR) below
50% with Center Pump switch ON

Question 3

What does a Crossfeed VALVE light and associated EICAS message indicate?

Answer 3

Crossfeed valve not in selected position

Question 4

What condition causes the L FWD Pump PRESS light to extinguish with the switch
OFF?

Answer 4

APU running on the ground

Question 5

Which pump is signaled to operate with no main AC power available for an APU
start?

Answer 5

DC pump located in the left main fuel tank

Question 6

What does the LOW FUEL EICAS message and FUEL CONFIG light indicate?

Answer 6

Fuel quantity is low in either left or right main tank

Question 7

The center fuel pumps have HOW MUCH output pressure than the main tank fuel
pumps?

Answer 7

Greater

Question 8

How is Fuel balancing accomplished?

Answer 8

Opening the crossfeed valve(s) and turning off the Fuel
Pump switches for the left or right main fuel tank
whichever has the lowest quantity

Question 9

Why will the center tank fuel feed first if all fuel pumps are on?

Answer 9

The center tank fuel pump output pressure is greater

than the main tank fuel pump output pressure

Question 10

What does the L and/or R FUEL SYS PRESS EICAS message indicate?

Answer 10

All fuel pumps have low output pressure or all fuel
pumps on one side have low output pressure and the
Crossfeed switch(es) are OFF

Question 11

What causes the FUEL CONFIG light and associated EICAS message to indicate on the
B757?

Answer 11

Less than 2200 lbs in either main tank, or more than
1200 lbs in the center tank with Center Fuel Pump
switches OFF or fuel differs by 1800 lbs between main
tanks

Question 12

What does a FUEL JET NOZ EICAS message and associated VALVE light indicate on
the Fuel Jettison Panel on the B767?

Answer 12

Inflight, the nozzle valve position disagrees with the

commanded position

Question 13

When jettisoning fuel on the B767, approximately how much fuel is jettisoned per
minute?

Answer 13

2,600 LBS

Question 14

What does an L or R FUEL JET PUMP EICAS message indicate on the B767?

Answer 14

Associated fuel jettison pump is inoperative

Question 15

What does the INSUFFICIENT FUEL CDU message indicate?

Answer 15

Predicted fuel at destination less than the entered FMC

reserves