Boeing mechanics caused $4 million in damage to Air Force One's oxygen system

Defense News: Mechanics from Boeing contaminated the oxygen system on a presidential Air Force One aircraft last April, according to an accident investigation board report released Tuesday.

The contamination to the VC-25A — one of two planes that is known as Air Force One when it carries the president — required $4 million in repairs, which Boeing paid for, the March 6 report said. Had it not been corrected, such contamination could have increased the risk of a fire.

The report said that three Boeing mechanics at a plant in Port San Antonio, Texas, used a contaminated regulator and contaminated tools, parts and components while checking the oxygen system for leaks during regular depot maintenance between April 1 and 10, 2016. They also used an unauthorized cleaning procedure while unsuccessfully trying to sanitize the parts, the report said.

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