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.
Portsmouth is a city in Rockingham County, New Hampshire in the United States. It is the fourth-largest community in the county, with a population of 20,784 at the 2000 census. A historic seaport and popular summer tourist destination, Portsmouth is served by Portsmouth International Airport at Pease, formerly the Strategic Air Command's Pease Air Force Base.