I'v got an hour or two driving the old Beech truck and seeing as every time/off wasn't considering a balanced field length there was no reason to remove ones's hands off the two gas levers (until gear/flap ret) and one always watched the torque guages in yr scan. I'm of the opinion that on this accident old Max (whom I'd known for many years) didn't get a roll back of a donk due gas lever creep. I wish I knew what happened, we all do but will never truly know -(