The Flying Doctors (1986) : 1x21

Gibbo demands vacation, and the only release-pilot is an old man called Frank Watson, known as Fearless Frank. He is a very good pilot but sometimes he takes riskes. He really likes this woman called Val. She called the RFDS, but she's a hypocondric, so Chris didn't want to go. Frank went on his own but after picking Val up he got a stomach-ache and had to make an emergency landing on the road. This meant Gibbo didn't get his vacation after all... Frank ends up in hospital but discharges himself and goes flying. Since he is sick he doesn't have the permission to fly. When he lands he claims this was his last flight, he'll start working for Val!