[onewhippedpuppy]

Originally Posted by afterburn 549

The large "Booms " as described I would guess is one engine that shot its guts out.
We all know when blades, wheels get ejected out it is like a hand grenade or worse going off.
All sorts of failures can be induced by shrapnel.

The odds of a rotorburst event taking out all of the flight controls are pretty slim. The engine OEMs have to certify by test that the shrapnel will all be contained within the case, and the airframe OEMs have to certify that critical systems are either not in the potential impact zone or are protected. I would guess that the primary flight controls on a 767 are at lease double if not triple redundant, and they would be on isolated circuits that would keep an issue on one wing from impacting other systems. It’s not totally fail safe but seeing how castrophic this crash was I suspect it was something else. Poorly secured cargo containers breaking loose in flight and causing a dramatic CG shift has happened before on cargo aircraft.