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Jeffrey D. Allred, Deseret News
David Habets moves air frames for the Airbus A350 at ATK in Clearfield Tuesday, March 18, 2014.

CLEARFIELD — ATK employees on Tuesday marked a milestone in assembling jet airplanes.

Workers celebrated constructing the 20,000th composite part for the Airbus A350 XWB program.

Rep. Rob Bishop and executive director of the Utah Governor’s Office of Economic Development Spencer Eccles were on hand at the Aircraft Commercial Center of Excellence to honor the company and its employees.