Guys, I think you're flogging a dead horse. The AAIB would never make a statement like this...
It has also been confirmed, by examination and measurement of the internal design features, that this was the fuel disposition at the time of the accident.
unless they were sure of their facts.
They've clearly looked at the geometry of the tanks and the resting position of the helicopter after the crash. By finding the supply tanks effectively completely empty they have ruled out the possibility of post crash drainage.