Harry - Passenger That Sees the Oil Leak (uncredited)
Sally Yarnell
Passenger (uncredited)
De De Young
Wife - Passenger (uncredited)
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Trivia
The script was originally submitted to Universal Studios TV division as a made-for-TV movie. Executive producer Jennings Lang liked it so much he decided to do it as a feature theatrical film instead.
Alan Murdoch and Joe Patroni leave the air traffic control centre to board the helicopter, in the next shot the plane goes over a mountain top. Following this passengers are shown aboard flight 409 looking directly forward, crew members can be heard in the background giving instructions to the actors. A crew member quite clearly says, "Yeah."
When Barney says to Mrs Devaney, "He's probably got something on his mind and he's getting it off his chest right now," a flight attendant with blonde hair can be seen walking up the aisle behind him, but in the very next shot she disappears and two flight attendants with black hair can be seen.
When George Kennedy makes his first appearance, a mechanic talking to him drops a wrench. The mechanic clearly looks down and then gives the wrench a slight toss before he lets go of it.