The Air Force has issued a stop-work order to Sierra Nevada Corp. for the construction of 20 light-attack aircraft ticketed for the Afghan military to allow a congressional watchdog office time to mull over whether the service wrongfully awarded a multimillion-dollar contract to a foreign contractor. Air Force officials issued the stop-work order on Monday, just days after Beechcraft Corp. filed a bid protest with the Government Accountability Office over an Air Force decision to award a $427.5 million contract...
