>>.....primary cause of loss (crew fatigue in this case)...<<
Nonsense.
The REAL cause was the crew simply were not paying attention to details.
Very similar to the recent C-5 accident.
Minds occupied elsewhere is never a good idea in transpoirt aircraft operations.
More and more I see crews trying to grasp at the 'fatigue' issue, when in actual fact many times they simply do NOT pay attention.
Perhaps they are bored with the job?
If so, these folks should definitely think about another profession.
Good 'ole Harry Truman said it best, many years ago...
'Can't stand the heat, stay OUT of the kitchen'.
True then, true just as well today.