Originally Posted by
MechEngr
It appears to be if one side control column jammed, say if a mechanic lost a wrench or a bolt worked loose. Not so much if the pilots disagree on how best to fly the plane.
thanks, under mechanical failure it might indeed make sense.
but when pilots disagree (not uncommon in recent crashes!), it reduces the chances of survival from 50% (stronger wins) to 0% (no one wins)
seems like a design flaw to me. Final report might be interesting.