Happy Days (1974)

S10E18 Wild Blue Yonder

Fonzie and Roger find themselves stranded after missing their flight to Minneapolis for a teacher's convention. In a pinch, they decide to hitch a ride with Potsie's uncle, Omar, who pilots a small plane used for crop dusting and scattering ashes. However, when the engine starts to malfunction, Omar makes a hasty exit, parachuting out and leaving Fonzie and Roger alone in the cockpit without any parachutes to save them.