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.
Chattanooga is a town in Comanche and Tillman counties in the U.S. state of Oklahoma. The population was 432 at the 2000 census. The Comanche County portion of Chattanooga is included in the Lawton, Oklahoma Metropolitan Statistical Area.