Whilst at RCAF Staion Moose Jaw in the early/mid fifties we had a batch of the "New Luftwaffe" in training, I remember a conversation with one of the ex WW2 "Re- Treads", who by the way had been shot down four times, that there was a team which went over Gibsons aircraft with a fine tooth comb, due his rank and status. As a result of this he stated that both engines had not been runing on impact due to fuel starvation, but the aircraft still had fuel in some of the tanks on impact. Now, I have no way of confirming this and it was many years ago, all I remember was that the guy was an acting Major and had started as an NCO pilot some time in WW2, maybe someone has more definative information on this?