Fuel

Question 1

What is the fuel capacity?

Answer 1

• Main Tank 1 or 2 8,600 lbs
• Center Tank 28,800 lbs
• Total 46,000 lbs

Question 2

Where is fuel temperature sensed?

Answer 2

No. 1 Main Tank

Question 3

What is indicated by the center pump LOW PRESSURE Lights?

Answer 3

Center FUEL PUMP Switch ON and pump output pressure is low

Question 4

Will illumination of a single light illuminate the M/C and FUEL System Annunciator Lights?

Answer 4

Yes, with CTR FUEL PUMP switches on, continuous illumination of one LOW PRESSURE light for 10 seconds will trigger M/C + FUEL

Question 5

What is indicated by the main tank pump LOW PRESSURE Lights?

Answer 5

Main tank FUEL PUMP Switch OFF or pump output pressure is low

Question 6

Will illumination of a single light illuminate the M/C and FUEL system annunciator lights?

Answer 6

No, it illuminates only on M/C Recall. If both lights in the same tank illuminate, they will cause the M/C and FUEL System Annunciator Lights to illuminate.

Question 7

What triggers the the LOW fuel alert?

Answer 7

Quantity

Question 8

What triggers the the IMBAL fuel alert?

Answer 8

Main tanks differ by > 1000 lbs

Question 9

What triggers the the CONFIG fuel alert?

Answer 9

Engine(s) running and center quantity >1600 lbs and both center pumps OFF

Question 10

Do the fuel alert indications (LOW, IMBAL, and CONFIG) illuminate the M/C or FUEL System Annunciator Lights?

Answer 10

No

Question 11

When does the center tank scavenge pump operate?

Answer 11

When No. 1 Main Tank quantity approximately 1⁄2 full and No. 1 FWD Pump Switch ON, scavenge pump operates automatically for remainder of flight to transfer any remaining fuel in center tank to No. 1 Main Tank

Question 12

When does the center tank scavenge pump operate?

Answer 12

When No. 1 Main Tank quantity approximately 1⁄2 full and No. 1 FWD Pump Switch ON, scavenge pump operates automatically for remainder of flight to transfer any remaining fuel in center tank to No. 1 Main Tank

Question 13

What are the tank fuel temperature limits?

Answer 13

• Minimum prior to takeoff and inflight: -43°C, or 3°C above the fuel freezing point temperature limit
• Maximum: +49°C

Question 14

If center tank quantity is more than 1000 lbs, what limitation must be observed?

Answer 14

Main Tanks 1 and 2 must be full

Question 15

What is the maximum random fuel imbalance between main tanks 1 and 2?

Answer 15

1,000 lbs.

Question 16

Is ballast fuel authorized?

Answer 16

No

Question 17

What other limitations must be observed regarding center tank pumps?

Answer 17

Intentional running of a center tank fuel pump (LOW PRESSURE Light illuminated) is prohibited

Question 18

If center tank quantity is less than 1000 lbs on the ground, what caution should be observed?

Answer 18

Center tank pump switches should be OFF

Question 19

What other cautions must be observed regarding center tank pumps?

Answer 19

• Must be OFF when LOW PRESSURE Light illuminates and/or center tank empty
• Must be OFF when no one in cockpit to monitor LOW PRESSURE Lights

Question 20

What is the minimum tank quantity to defuel or transfer fuel with passengers on board?

Answer 20

2000 lbs in tank being drained

Question 21

What is the minimum tank quantity to defuel or transfer fuel with passengers on board?

Answer 21

2000 lbs in tank being drained

Question 22

What is the minimum tank quantity for operation of electric hydraulic pumps?

Answer 22

• System A 1675 lbs in Main Tank No. 1

* System B 1675 lbs in Main Tank No. 2

Question 23

What is indicated by an illuminated FILTER BYPASS Light?

Answer 23

Impending fuel filter bypass due to a contaminated filter