Sorry but...
this is too long a thread.
Can anyone tell me what was the pitch attitude and the thrust at the time of the AP/ATHR disconnection?
I believe that, if they were normal (about 2.5º) but the atmosphere was somewhat turbulent and at night, somatogravic illusions could have played a very important rol, along with lack of hand flying in skills.
I can't see why else he would pull up in the first place, unless attitude was too low, or thrust was in idle and altitude decreasing or something like that.
There must be a reason, other than total inability to fly straight and level.