rapid pitch down
Having hit , then lost its tail, we had the equivalent of a tailless aircraft not designed with sufficient pitch stability. I have seen this happen with hang gliders , at even at slow airspeed the change of attitude in a "tuck"is so sudden , 12 degrees nose up to 90 degrees nose down in a flash, that the pilot can continue forward to instantaneous bone breaking injury on the airframe. The negative angle of attack accelerates the rate of descent to a high figure at once.Im not surprised the A330 was so completely shattered.Not a cartwheel., maybe the pieces tumbled .
Wilyflier