janeczu - an interesting theory. Can you tell me what the apparent glidepath angle of the aircraft (red) is in degrees and what the green 'normal' is? In the west, a 'normal' mil approach tends to be 2.5 deg
Still absolutely no indication of a g/a reaction on the CVR to match your theory. PF appears 'silent'.
Are you sure the '400' was a baro reading?