The Government Accountability Office has sustained Boeing's protest of the Air Force's multibillion-dollar refueling tanker contract award to a Northrop Grumman-EADS business team, pushing the service toward rebidding the contract. "Our review of the record led us to conclude that the Air Force had made a number of significant errors that could have affected the outcome of what was a close competition between Boeing and Northrop Grumman," according to a GAO statement issued June 18. "We therefore sustained Boeing's protest...