I believe you nailed it. Tired crew makes simple error. Comports with Ockham's razor.
-=MachacA=-
If the
"tired crew makes simple error" is simple and probably common, what is the backup barrier that should have caught this and prevented the rest of the combinations that resulted in this accident
I mean that we can expect more tired crews and more simple errors but we should not be accepting this as the only cause of the accident.
Where's the intervention to this?