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The KC-46A tanker, which Boeing [BA] is developing for the U.S. Air Force, has achieved a key milestone by finishing flight tests needed to obtain its second of two airworthiness certifications from the Federal Aviation Administration (FAA), the company announced April 26.A KC-46 communicating with and refueling a C-17 Globemaster III transport plane marked the last in a series of flights required to achieve a supplemental type certificate (STC) from the FAA, the company said. Boeing will now submit the…
