Senior Airman Trey MacLaughlin, a 525th Aircraft Maintenance Unit crew chief, services the oil on an F-22 Raptor engine during a thru flight inspection on the flightline at Joint Base Pearl Harbor-Hickam, Hawaii, March 11, 2014. The Raptors are on temporary duty to Hawaii for “Operation Cope Thaw” from the 525th Fighter Squadron at Elmendorf Air Force Base, Alaska. (U.S. Air Force photo/Tech. Sgt. Terri Paden)