xcitation
the actual trace shows the THS pinned, with elevators deflected Nose Down, at a time when ACARS were overloaded with other unreported data, and BEA have not explained the mechanism for controls integrity.
Let alone: What was he seeing? On a PFD that was not recorded?
My mention of two identical inputs, one at the start of, and one near the end of the episode? NOSE UP, with LEFT ROLL to the stop!
That nagging and chronic descending turn to the right that cost them 270 degrees off course? You might say, well, who has time for Heading? Level wings provide a constant heading. No mention of this from BEA. Who remembers recovery from Unusual attitudes or steep banks: "Roll out on heading xxx, please"........
Doze. I have way short of enough to say anything definitively. Others might consider they are also in the same position. Look at the traces Elevs v THS on the right (later) tracks.