Originally Posted by
lateott
I see your logic.
However, would a transient event that causes the AUTO FAIL indication cause the ALTN system to also indicate if that transient event was no longer present?
Isn't it possible that the condition was no longer present when ALTN was active?
In the NTSB media briefing they say there is “no indication whatsoever that [the pressurisation controller issues] correlate in any way to the expulsion of the door plug”. That’s not “we don’t know”, that’s them saying it’s not related as positively as they can in an investigation that hasn’t been completed.