Originally Posted by Bearfoil
To me, if Pitch transits got out of phase with Power, their could be trouble? Insofar as rate, I think Power up when Nose down would be problematic, as would the reverse. If the THS is in there, what is the calculated rate for stopping speed and Pitch excursions that are (or have become) unnecessary?
First, you should try to put those events into the right sequence, then your questions should be answered by themselves.
Autotrim large change took place past
0210:51 :
"The trimmable horizontal stabilizer (THS) passed from 3 to 13 degrees nose-up in about 1 minute and remained in the latter position until the end of the flight." [BEA]
Why would you put absolutely this aircraft out of pitch trim before this point, beside trying to fit something squared into your rounded mind?
If THS trim, for whatever reason, was something else than 3 deg NU
before 0210:51, it reverted to this setting, then reached 13 deg NU
between 0210:51 and 0211:50.
How does it fit now with your question?
Ask yourself.