Man falls from plane into biscayne bay, miami

[Airbubba]

There was a incident California years ago where a woman opened the cabin door on a Twin Otter and jumped out. There were other passengers onboard that saw her open the door and jump.

It was ruled a suicide.

Here's a news report about that one:

Fall From Plane Called a Likely Suicide - Los Angeles Times

W.C. Fields famously falls out of a plane to pursue his flask in 'Never Give a Sucker an Even Break'. See about :55 in this video:

W.C. Fields "Sqwuigilum" [Never Give A Sucker An Even Break] - YouTube