FUEL Flashcards
What is the max fuel capacity?
20,935
How much fuel is unusable?
150 lbs
What happens when LOW 2 is selected on the XFEED selector knob?
Cross feed valve opens and automatically activates the left fuel pump (AC PUMP 1) supplying fuel to both engines from the left wing tank.
Why is LOW 1 selected after a dual engine failure?
on RAT power, only AC PUMP 2 is operational, cross feed valve opens to prevent vapor lock.
What normally powers the refueling systems?
DC BUS 1 and 2
What is the function of the collector tanks?
to keep the fuel pumps submerged, ensuring a constant flow of fuel to the engines.
What does the DC Fuel pump do?
Provides pressurized fuel for normal APU operation and engine start when AC power or the AC fuel pump is not available.
Can fuel be transferred from one fuel tank to the other?
no
What is the max fuel imbalance?
794 lbs
What does EICAS FUEL EQUAL-XFEED OPEN mean?
Fuel imbalance <100 lbs with the cross feed open.
When the fuel quantity is amber, approximately how many minutes of fuel is left?
60 minutes
When the fuel quantity is red, approximately how many min of fuel is left?
30 min
