New software flaw requires FAA intervention to avoid KC-46 schedule slip

A newly-discovered software flaw could trigger another schedule delay for the Boeing KC-46A Pegasus unless the US Federal Aviation Administration approves a temporary waiver from certification requirements. In a document submitted to the FAA on 26 March, Boeing requests a time-limited exemption from the FAA’s supplemental type certification criteria for the 767-2C, the commercial aircraft model on which the KC-46A is derived.

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