slats11
If we get data off the CVR, then I have a strong suspicion we are going to find long periods of silence leading up to the loss of control.
Falling asleep on the job is not the same "black and white" process we normally experience each night. .......
The implication of what you write automatically equates a quiet CVR with falling asleep.
CVRs in cruise often have long periods of silence.
let's not start writing analysis of symptom-cause without all the facts