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.
Sperry is an unincorporated community in central Des Moines County, Iowa, United States. It lies along local roads north of the city of Burlington, the county seat of Des Moines County. Its elevation is 751 feet (229 m). Although Sperry is unincorporated, it has a post office with the ZIP code of 52650, which opened on 5 February 1870. The community is part of the Burlington, IA–IL Micropolitan Statistical Area.