The crash of a home-built airplane at the Ogden Airport in May 1986 is blamed on a faulty sound suppressor device, in a suit filed in U.S. District Court.

Louis Anderson, the pilot and a Weber County resident, filed the suit against Denney Aerocraft Co., an Idaho business, and LLP Manufacturing Co. Inc. of New York.The suit says Anderson bought a "Kitfox" home-built aircraft from Denney Aerocraft Co. in 1985. Anderson was accepted as a Utah dealer for the company.

Dan Denney of the aircraft company represented that a noise suppressor manufactured by LLP was highly recommended for home-built aircraft. Anderson bought one, and it arrived with no written warnings or instructions, the suit says.

It says he flew the plane for approximately seven hours with the suppressor, without any mechanical problems. But then on May 19, 1986, while flying at the Ogden Airport with a passenger, Terry Kelley, the plane stalled and crashed.

Stephen R. Cook, Anderson's lawyer, told the Deseret News both of the people in the plane were severely injured. Anderson landed on his feet and suffered compressed and fractured bones, so that he now must use assistance in walking and is actually shorter than he was.

The suit says the suppressor was not safe because of faulty designing and manufacturing, "and because it was not equipped with adequate instructions and/or warnings to the user." It asks for damages to be determined at trial.