Chapter 12 - Fuel Flashcards
For which conditions does the FUEL CONFIG light illuminate ?
Low, imbalance and config
When does the fuel jettison FAULT light illuminate ?
When there is a problem with the jettison pumps OR transfer valves.
Is the total fuel quantity the sum of the individual tank quantities ?
No, it’s a different calculation resulting from the FF. The FMC makes a separate calculation.
Is a main fuel pump PRESS light illuminated when the switch is off ?
Yes.
When are the center fuel pumps activated ?
When the switch is ON and respective N2 > 50%.
When does fuel scavenge begin ?
Where does it go to ?
When main tanks are at 50%.
To both main tanks.
Are two open crossfeed valves required for successful fuel transfer ?
No, only one.
Whats max fuel quantity in kgs for the main tanks and the total quantity ?
- Main tanks: 18,3 T
- Total tank: 73 T
Where are the jettison nozzles located ?
Inboard of each outboard aileron.
What is the approximate fuel dumping speed ?
1200kgs per minute.
What happens when you select the fuel jettison selector to ON ?
- Transfer valves open
- Jettison pumps activate
- Automatic center tank power removal is inhibited
Which fuel pump fuels the APU with AC power available ?
The L FWD fuel pump.
