"The plane hit the sand and flipped over upside down," Varner told The Associated Press.
Federal Aviation Administration spokesman Ian Gregor said the Cessna 207 crashed 400 feet to 500 feet (120 to 150 meters) short of the tarmac. Varner said one passenger died after being rushed to a hospital, while another was hospitalized in apparent stable condition.
He said four others received hospital treatment for minor injuries and were released, while the seventh person was unhurt. The pilot was among the injured. The aircraft was on a sightseeing tour when the accident occurred, Varner said.
Both the captain and the FAA website said the aircraft's registered owner is American Aviation Inc. of Salt Lake City. A person answering the phone there late Saturday said they didn't have any information.
Varner said that the hometowns of the passengers was still being determined but at least one of them was from the French city of Le Havre.
Both Gregor and Varner said the cause of the crash was being investigated.