Originally Posted by Mr Optimistic
So from 10:51 +0:15=11:05 to 14:28, ie 3 minutes +, all the efforts of the crew seem to have had no net effect on NU, but the heading changed. Is this plausible ?
Based on the released information on the crew actions, it is entirely plausible. The great mystery is why the crew did not take decisive action to unstall the airplane. According to BEA's "3d" depiction of the flight path, the heading changed after point 6, when the airplane descended through FL350 at around 2:11:40. No further information on the heading change is available in the Update. I think the explanation must be sought in the difficulty of controlling the bank angle in a deep stall.