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.
Springfield is the third largest city in the U.S. state of Missouri. It is the county seat of Greene County. On July 1, 2008, the estimated population was 156,206. The Springfield Metropolitan Area, population 426,144, and includes the counties of Christian, Dallas, Greene, Polk and Webster. The estimated population inside a 50-mile (80 km) radius of Springfield was 662,587 as of 2009. Springfield is near the population center of the United States, about 80 miles (130 km) to the east. Springfield's nickname is The Queen City of the Ozarks. It is also known as The Cultural Center of the Ozarks, The Gateway to the Ozarks, and The Birthplace of Route 66.