Originally Posted by gazumped
I would have a guess that once "deep stalled" a A330 would require in excess of 15,000 to recover, and only then if the correct control Imputs were done.
The correct control input is initially quite simple: full nose-down maintained until the airplane is unstalled and the stall warning stops. Then comes the tricky part - recovering from a steep dive without overspeeding and without entering a secondary stall.
A near optimal manoeuvre would have recovered the airplane within about 11000 ft to level flight at a speed close to Vmo.