160420-M-GY456-249 PENSACOLA, Fla. (April 19, 2016) U.S. Marines with Marine Aviation Training Support Group (MATSG) 23, check an F/A-18 Hornet for internal damages using X-Ray methods at Naval Air Station Pensacola, Fla. MATSG-23 is a formal school responsible for providing students aviation logistics entry-level and intermediate training. (U.S. Marine Corps photo by Lance Cpl. Jose Villalobosrocha/Released)