A pilot who starred in U.S. reality Tv series Ax Man has been killed in a helicopter crash.

William Bart Colantuono, 54, was flying a logging helicopter in Oregon on Tuesday (17Sep13) when the accident occurred.

The crash is currently under investigation but witnesses claim they saw the rotor separate from the craft before it flipped and crashed upside down.

Colantuono appeared in season three of Ax Man, a show about logging crews in America's Northwest.