Originally Posted by Leodis737
bsieker, thanks for your correction on when fuel scavenge starts. With the correction: 13,500kg+13,500kg+900kg of fuel (total) remaining when scavenge started; 10,500kg remaining on approach to LHR (AAIB); difference 17,400kg; fuel being used at a rate of maybe 5,700kg/hr; so fuel scavenge would have started about 3 hours before it hit the grass, i.e. in cruise. Would scavenge have finished, though?
Yes.
The figures look reasonable; at the minimum fuel scavenge rate of 400kg/h, it would take 2 hours, 15 minutes to scavenge all of the 900kg from the center tank. It would have finished some 45 minutes before the end of the flight.
Likely before TOD, but I cannot know for certain.
Bernd