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.
Chickasha is a city in and the county seat, business and employment center of Grady County, Oklahoma, United States. The population was 105,850 at the 2000 census. Chickasha is home to the University of Science and Arts of Oklahoma and hosts an annual Festival of Light celebration located at Shannon Springs Park. The city is named for, and strongly connected to Native American heritage as Chickasha (Chikashsha) is the Choctaw word for Chickasaw.