Originally Posted by
AndyJS
[I]"Apart from hypoxia, are there any other scenarios that would account for the crew and passengers being incapacitated AND the plane being able to fly for another 5-7 hours?"
What I meant was: are there any other scenarios apart from hypoxia that don't involve foul play of some type. I'm struggling to think of any.
Noxious gas, from somewhere as yet unknown ?