I read about this some years ago. If you search around on the net, the story is out there.
Pilot was out on a training mission. Engine went balky, broke formation and tried to make it back to the beach. Ditched/Crashed into the sea. No survivor. Wreck stayed there (upside down with wheels down) for about 40-50 years when it was removed by civilian salvagers. USN objected, considers all aircraft in water theirs as well. Took the F6 back from civilians. Whole thing went to court.