Lyman said:
Moving the controls apart in the cockpit, from the front to the side, ISOLATED each stick from the other. (See Lufthansa, Tip Strike)
From Flight Global re:LH044:
Flight-data recorder information shows that, in the final moments of the approach, both pilots were applying sidestick input. A320 aircraft are able to accept dual input the inputs from the two sidesticks are numerically summed.
At a height of 75ft (25m) the aircraft began to drift to the left, and the co-pilot moved the sidestick 10e_SDgr right, while at 50ft the sidestick was moved left accompanied by a 28e_SDgr left-rudder input. The captain gave 4.5e_SDgr right-hand input to his sidestick at 15ft, and the co-pilot also moved her sidestick from left to right.
The aircraft banked 4e_SDgr left, touching down briefly with the left main landing-gear, before the roll angle increased to 23e_SDgr left and the wing-tip struck the runway.
I sez: This is scary stuff. I'm not going.