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.
Greenfield is a village in Highland, Fayette, and Ross counties in the U.S. state of Ohio, along Paint Creek. The population was 4,906 at the 2000 census. Although the municipality is listed as a city by the Census Bureau, it officially became a village when its population dropped below 5,000.