Fuel

Question 1

When jettising fuel on the B767, approximately how much fuel is jettisoned for minute?

Answer 1

2600 LBS

Question 2

What does a FUEL JET NOZ EICAS message and associated valve light indicate on the fuel jettison panel on the B767?

Answer 2

In-flight, the nozzle valve position disagrees with the commanded position

Question 3

The center fuel pumps have how much output pressure then the main tank fuel pumps?

Answer 3

Greater

Question 4

What does a crossfeed valve light in associated EICAS message indicate?

Answer 4

Cross feed valve not in selected position

Question 5

How much of an imbalance annunciates the FUEL CONFIG light AND associated EICAS message on the B767?

Answer 5

2500 lbs (48,000 Lbs or less), linear reduction to 1500 lbs (48,000 lbs to 79,800 lbs), 1500 lbs (greater than 79,800 lbs)

Question 6

What are the usable fuel amounts on the beast 767?

Answer 6

40,267 LBS for each main tank and 80,132 LBS for the center tank

Question 7

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

Answer 7

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 8

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

Answer 8

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 9

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

Answer 9

The center tank pump out put pressure is greater than the main tank fuel pump output pressure

Question 10

How is fuel balancing accomplished?

Answer 10

Opening the crossfeed valve and turning off the fuel pump switches for the left or right main fuel tank which ever has the lowest quantity

Question 11

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

Answer 11

Associated fuel jettison pump is inoperative

Question 12

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

Answer 12

APU running on the ground

Question 13

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

Answer 13

DC pump located in the left main tank

Question 14

What does a center pump PRESS light and associated EICAS message indicate?

Answer 14

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

Question 15

What does a main tank pump PRESS light and associated EICAS message indicate?

Answer 15

Fuel output pressure low with the pump selected ON, or main tank pump switch OFF

Question 16

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

Answer 16

Fuel quantity is low in either left or right main tank

Question 17

What does the INSUFFICIENT FUEL CDU message indicate?

Answer 17

Predicted fuel at destination less than the entered FMC reserves