to believe his son's death was an accident. September 20 – Musicians Jim Croce and Maury Muehleisen were killed in a Beechcraft E18S due to fly from Natchitoches, Louisiana to Sherman, Texas. The plane collided with a tree at the end of the runway of Natchitoches Regional Airport. 1974 February 16 – a Beechcraft Baron aircraft registered VH-FWR disappeared on a flight from Gladstone to Longreach in Australia. April 18 – A Piper PA-23 Aztec entered an active runway at Luton Airport and was struck by a Court Line BAC One-Eleven taking off. Both people on board the Aztec were killed. All 91 people on board the One-Eleven survive after take-off was aborted. 1977 August 1 – A Bell 206B news helicopter piloted by Francis Gary Powers crashed in a park near Encino, Los Angeles due to fuel starvation. 1979 August 2 – Cessna 501, N15NY. Thurman Munson, catcher for the New York Yankees, died in a crash of his personal jet while practicing touch-and-go landings at Akron-Canton Regional Airport. August 24 – A Stearman biplane, aircraft registration number N48784, flew into electrical transmission lines that cross Lake Natoma at Mississippi Bar. Jacquelyn Burnett, a passenger in the biplane, was killed. The pilot, Stephen Francis Williams, was convicted of manslaughter. His conviction marked the first time in United States history that a pilot was held criminally responsible for the death of a passenger. Williams had previously killed his own 12-year-old daughter, Patricia Ann Williams, by attempting a takeoff in dense fog at the Salinas Municipal Airport. 1981 August 9 – Cessna 210M VH-MDX disappeared in the Barrington Tops National Park area. 1985 December 31 – Popular singer and actor Ricky Nelson and six others died in a Douglas DC-3 near De Kalb, Texas, United States during an off-airport emergency landing attempt prompted by dense smoke in the cabin; the aircraft struck trees and utility poles, suffering severe damage and bursting into flames. The National Transportation Safety Board was unable to verify the origin of the smoke, stating in the final report that "... the ignition and fuel source were not determined." 1987 May 28 – Mathias Rust flew illegally into Soviet airspace in a Cessna 172 and landed in Moscow's Red Square. 1990 August 27 – A Bell 206B Jet Ranger helicopter crashed into a hillside in low visibility soon after takeoff near East Troy, Wisconsin, United States, killing influential