Fuel System Flashcards
FUEL CONFIG light - when?
1) >1200 lbs of fuel in center tank and center tank boost pumps off
2) <2200 lbs of fuel in either L or R tank
3) Fuel imbalance
757 - 1800 lb fuel imbalance
767 - 2000 lb (+/- 500 lbs) fuel imbalance
When will the left tank forward AC fuel pump operate regardless of switch position?
On the ground when the APU is running and there is AC power available
How is total fuel quantity calculated for the overhead panel indicator?
It is a separate calculation performed by the fuel quantity processor
What happens in the fuel system when the ENG FIRE switch is pulled?
The engine fuel valve and spar valve both close
What happens when the FUEL CONTROL switch is moved to CUTOFF?
The engine fuel valve and spar valve both close