I think Beages is right (wow, it feels strange to type that!). I remember the film from donkeys back.
The main gist was about owning up to mistakes to inform the others (pre CHIRP days). It was set in Belize, the engine winds down (post surge?) and won't restart so bona mate goes for the handle and pulls several times to no effect. Then he sees the pin still in the seat pan handle. Meanwhile the jet is getting very close to the jungle canopy before the Pegasus decides it's prepared to play again and off he flies to safety. The next 10 mins of film is about him wrestling with his conscience (suspension of disbelief here - Harrier mate with a conscience) as to whether to tell the rest of the sqn about it. In the end he tells the Boss and everyone lives happily ever after.
Not quite in the Dr Fod league of FS productions!