No Highway
I'd think ' No Highway ' should be available, either 2nd hand or if lucky new, as people are doing DVD re-releases of classic films, I got a DVD of ' Yangtse Incident ' that way recently, through the place named after a large river.
It's a while since I read it ( think I have All N.S.'s books ) but wasn't the plot that the air engineer has his theory, then finds the aircraft of the same type he's a passenger on is quickly approaching the hours of the previous doomed ones !
Can't help thinking memories of the Comet documentaries are getting mixed in...