12 - Fuel Flashcards
What is the difference between a bright blue and a dim blue light, e.g the VALVE OPEN light
Dim = Open Bright = In transit, or disagreeing with the commanded position
The fuel temperature is measured where?
The no1 main tank
Fuel LOW alert is activated when?
Below 453kg
Fuel IMBALANCE alert is activated when?
Main tanks differ >453kg
When will you get a fuel CONFIG alert
Center fuel tank >726, both fuel tanks low pressure/off.
Where are all the fuel pumps physically located?
The center tank
What’s the max and min fuel temps
Max49C, min -43C or fuel freeze temp + 3C
What does the LOW PRESSURE light on the fuel pumps mean exactly
Pump output pressure is low
When does the center tank scavenge jet pump start operating
When the no1 main tank is half full
What powers the:
A: Spar fuel valve:
B: Engine fuel valve
Both are DC powered from
A: Hot battery bus
B: battery bus
Which tanks have bypass valves (for suction feeding)
Main tanks (wings)
How many fuel measuring sticks do we have
6 in each main tank, 4 in center tank (total 16)
