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.
Monessen is a city in Westmoreland County, Pennsylvania, United States. The population was 8,669 at the 2000 census. In 1940, 20,257 people lived there. In 1990 the population was 13,026. Steel-making was a prominent industry in Monessen, which was a Rust Belt borough in the "Mon Valley" of southwestern Pennsylvania that became a third-class city in 1921. It is near Charleroi and Donora, two similar places with similar histories.