Originally Posted by
MechEngr
Putting on a speculators cap - there were fatigue cracks in the retaining features / fingers on the door. Had only one let go I would not expect the door to do more than leak loudly. But if several had cracks then when one finally crossed the finish line the rest go in a rapid cascade.
I'm struggling to imagine fatigue cracks on an aircraft that's less than 3 months old.