Originally Posted by
Intrance
About the fact that they did not notice their conflicting inputs... I do not fly the type, so excuse my lack of knowledge on the exact flight control config on the 777. But is it not supposed to be one of the upsides of Boeings FBW philosophy, to keep the yokes still moving in sync and provide feedback?
Yes, the control wheels are physically interconnected so that whatever one wheel does, the other does.
There is a 'breakout' feature that can disconnect the two should one get jammed, but it takes
considerable force to trigger that 'breakout' and it certainly doesn't look like it came into play in this incident.