MAMMOTH LAKES, Calif. (AP) _ A stunt flier was killed Sunday when his military training plane crashed in flames before spectators at the Mammoth Lakes Air Show, authorities said.

Gary J. Loundagin, 42, of Livermore, Calif., had been trying to make a loop during an aerobatics demonstration when his plane crashed, according to a Mono County Sheriff's Department dispatcher who refused to give her name.

No one else was injured in the 12:49 p.m. crash at the Mammoth-June Lakes Airport in the eastern Sierra resort community 300 miles north of Los Angeles.

A Federal Aviation Administration official from Reno, Nev., witnessed the crash and was investigating, according to an FAA regional duty officier in Los Angeles who refused to give his name.

Authorities said the plane Loundagin was flying was privately owned, but it wasn't immediately known if he was the owner.