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.
Ten Sleep is a town in Washakie County, Wyoming, United States. It is located in the Big Horn Basin in the western foothills of the Big Horn Mountains, about 26 miles (42 km) east of Worland and 59 miles (95 km) west of Buffalo. The population was 304 at the 2000 census.