Tandem,
I am not a pilot, but know a bit about computer simulation, so suggest that this statement should be amended:
5) A computer model suggests a possible manoeuvre in the 3 secs prior to impact which could explain the parameters exhibited by ZD576 at the moment of impact.
I suggest:
5) A computer model, programmed to assume a trimmed aircraft, had to suggest a possible manoeuvre in the 3 secs prior to impact to explain the inconsistencies between trimmed flight and the parameters exhibited by ZD576 at the moment of impact.
EG