At 2 h 10 min 51.......Around fifteen seconds later...........altitude reached its maximum of about 38,000 ft, its pitch attitude and angle of attack being 16 degrees
The recordings stopped at 2 h 14 min 28.
The last recorded values were a pitch attitude of 16.2 degrees nose-up.
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 ?