Cases involving individuals who have been injured in crashes and collisions involving helicopters. A Helicopter Accident is an occurrence associated with the operation of an aircraft which takes place between the time any person boards the helicopter with the intention of flight and all such persons have disembarked, in which a person is fatally or seriously injured, the aircraft sustains damage or structural failure and/or the aircraft is missing or is completely inaccessible.
Cleo Springs is a town in Major County, Oklahoma, United States. The population was 326 at the 2000 census. The post office was established March 21, 1894 and discontinued May 3, 1917. The Sod House Museum, listed on the National Register of Historic Places and also an Oklahoma Historic site, is located north of town in Alfalfa County.