STEVENS POINT, WI (WTAQ) - A stunt plane did not have any mechanical problems just before it crashed at the Stevens Point Air Show, killing its pilot.
The National Transportation Safety Board has issued a preliminary report about the June 1st crash.
47-year-old William Cowden of Menomonie died while performing maneuvers with his Yakovlev YAK-55-M aircraft. Investigators said the plane rotated more than 3 times before it flew straight down and formed a two-and-a-half foot crater in the ground.
Damage to the 3 propeller blades indicated that the engine was running at the time. The NTSB did not say what caused the crash.
A final ruling is expected to be months away. Investigators still plan to review more data and video -- including a hand-held GPS and a Go-Pro video camera that were operational during the flight.
Cowden spent two dozen years as a military and commercal pilot. He was buried with full military honors last week at a veterans' cemetery near Spooner.
(Story courtesy of Wheeler News Service)