Fuel Flashcards
Collector cell in the inner tank, what’s its capacity?
1000kg
What’s the point of the collector cell in the inner tank?
protects against negative g to feed the engines
What’s the point of the split valve in the inner tanks?
To isolate in case of leaks
How many fuel pumps are located in the wing tanks?
3 in each
When does the inner tank standby fuel pump work?
if a main pump fails or is turned off
What are the two ways for a pilot to cutoff fuel to an engine?
engine master switch or fire push button
What happens to the fuel system in EMER ELEC or flight on batteries?
Crossfeed opens, left pump 2 operates
What causes a fuel tank temperature indication to go amber?
Inner tanks above 49 in flight, or above 45 on ground, or below -37. Outer/trim tank, below -40
What is indicated by a half box (amber) on the fuel quantity on EWD and SD
The indicated quantity is not fully usable
What is indicated by the OUTR TK XFRD on EWD?
When outer tank has emptied into inner
Minimum fuel required for takeoff?
5200kg
What fuel is used first?
Inner tank (collector)
How is fuel transferred from outer to the inner tank?
Gravity
With LDG down, what condition will the trim tank transfer system be in?
Alt fuel transfer isnt possible
What happens to fuel feed in emer elec config?
Forward fuel transfer takes place automatically
