Would think the fuel burn would be more than 600kg in this case, doubt they tried to raise the gear (better to land on some than risk none of it coming down again and assuming the hydraulic circuit was still intact to bring them up) and would the flaps have locked in position? I take it the u/c struck them as it exited the wing area. If that were the case they would have been using a fair bit of power to keep the thing in the air.
I believe that it was defueled after it was dumped on 06. Anyone know how much came off?