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.
Prince Frederick is a census-designated place (CDP) in Calvert County, Maryland, United States, not to be confused with the incorporated, and much larger, city of Frederick some 70 miles to the northwest in Frederick County. The population was 1,432 at the 2000 census, although the population is believed to have grown substantially since then. It is the county seat of Calvert County.