The Federal Aviation Administration says a plane nearly hit an ambulance on the runway at BWI Marshall Airport in January. The mishap involved a Boeing 737 operated by Southwest Airlines that came within 200 feet of the aircraft rescue ambulance. The FAA report says there was a miscommunication between the tower and the ambulance driver. Reportedly the ambulance was told to stop before reaching the runway, but the driver believed they were instructed to cross it and was moving close to the runway as the plane took off at about 168 miles per hour. The national news website Politico first reported this incident as one of six close encounters at airports this year.