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.
Mount Vernon is a city in Linn County, Iowa, United States, adjacent to the city of Lisbon. The city's population was 3,390 when the 2000 census figures were released, but that number was later revised to 3,808 because the Census Bureau had incorrectly reported that 418 residents of a Cornell College dormitory in Mount Vernon lived in the nearby city of Bertram. A special census taken by the city in 2004 counted 4,171 residents. Mount Vernon is part of the Cedar Rapids Metropolitan Statistical Area.