Re: Air France 447 all over again?
While the Air France crash was due to two pilots putting in conflicting controls, it was again impounded by the computer not communicating it's actions well (and the pilots).
So in this case, could it be, though only pilot to computer in this case, the computer not communicating it's change in trim well? Thus pilots making adjustments/maneuvers, and "strange things" happening, as the automatic system overrides their action.
You then get a feedback effect, either from the computer, or from the human user, each one trying to adjust the others, each ones action becoming more and more extreme, until one fails.