Staff Sgt. Dustin Stewart crawls out of an F-16 Fighting Falcon intake after checking the fan blades for wear and tear May 8 at Eielson Air Force Base, Alaska. The aircraft belongs to the 18th Aggressor Squadron and is participating in Northern Edge 2008. Sergeant Stewart is a member of the 354th Aircraft Maintenance Squadron. (U.S. Air Force photo/Airman 1st Class Jonathan Steffen)