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Plane crashes have killed 29 people between 2007 and 2013, the most in the “other transport crash” category. Second is boat accidents (10 fatalities), followed by bicycle-only crashes (eight), and Jet Ski and train accidents (three). One person died from a trolley mishap. The NPS has pilots in 14 larger parks in the Lower 48 and Alaska and operates 44 aircrafts. Of those 44 aircrafts, NPS owns and operates 26 airplanes and helicopters as part of its fleet program.