Fuel System

Question 1

Primary refuelling method and how much fuel

Answer 1

Single point, 1100lbs

Question 2

How much extra fuel is available with over the wing

Answer 2

100lbs

Question 3

How many pounds of balance does the auto system maintain

Answer 3

20

Question 4

Red FUEL PX

Answer 4

Low px Switch detects less than 10 psi in the motive flow line

Question 5

FUEL LO L/R

Answer 5

Less than 110 (optical sensor)

Question 6

FUEL BAL

Answer 6

Auto balance system has shut off (due to greater than 30lbs imbalance for 2 mins or FP FAIL)

Question 7

Should you manually balance with FP FAIL

Answer 7

No, and auto fuel balancing will not be available

Question 9

During inverted flight you see FUEL PX and boost pump activates

Answer 9

Cease inverted manoeuvres and notify maintenance after flight

Question 10

When will the boost pump turn on?

Answer 10

• switch
• FUEL LO PX (PCL above idle)
• with starter activated

Question 11

Purpose of the boost pump

Answer 11

Provides fuel for start, and serves as backup to engine driven low pressure pump

Question 12

What happens when engine driven high pressure pump fails

Answer 12

Engine will fail due to fuel starvation and cannot be restarted