If I remember, this flight was testing the ability of the autopilot to handle an engine out shortly after takeoff. During the previous tests the fcu altitude was set at a much higher alt above the grnd, on the last test the fcu altitude was set much lower to the ground. When alt * came on it was doing the computation as to how long it took to get to the fcu alt, since it was much lower than the previous demos the autopilot caused the aircraft to pitch up to meet the calculations. The aircraft was rolling off on one side and the pilots pulled the other engine to idle to straighten out the aircraft. Initially it was thought that it was only a 330/340 problem, but via the sim we found out the 320 had the same issue, I think there was a software change....its been a long time. One of NWA execs was supposed to be on board and bowed out at the last moment, I think there were a lots of execs from Allitalia on board.