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John, 39, died June 18, 1986, when the Grand Canyon tour helicopter that he was piloting was hit from above by a Twin Otter also carrying tourists. Twenty-five people died as a result of the collision. He was born September 13, 1946, in Evanston, Illinois. John had become a smokejumper after serving as a helicopter pilot in Vietnam. He jumped at Boise during the 1976-77 seasons.
Smokejumping; Smokejumpers -- United States; National Smokejumper Association; Wildfire fighters; Obituaries
National Smokejumper Association, "Smokejumper Obituary: Thybony, John Robert (Boise 1976)" (2002). Smokejumper Obituaries. 1291.