On July 22, 1993 at 2055 central daylight time, a Cessna 305B, N26213, sustained substantial damage from a ground loop during landing rollout on runway 23 at the Elton Hensley Memorial Airport, Fulton, Missouri. The commercial pilot and his passenger were not injured. The personal flight originated at the Newton Kansas City-County Airport at 1848. A VFR flight plan was filed, and visual meteorological conditions prevailed at the time. The pilot and his passenger were en route from Boulder City, Nevada to Oshkosh, Wisconsin. In his statement, the pilot reports that he had gotten only 4 hours of sleep the nights of July 20 and 21. On July 22, the day of the accident, the pilot arose at 0330 (Pacific daylight time), and departed at 0545. He stated: "There were no rest periods at refuel stops, all were a 'quick turn', lunch was eaten in the aircraft during flight. I was simply behind the aircraft during landing not realizing how fatigued I was."