With the greatest of respect, and as a low time PPL with no aspirations of ever flying a jet and nothing useful to contribute to this debate, I respectfully suggest that the candour, honesty and tenor of PK-KAR's posts on this disaster should be recognised by Ppruners.
I dips me lid to you Sir for your efforts to shed light on this awful accident, in what appears at least to me, to be highly professional and unbiased manner.