191007-N-N0443-1005 PENSACOLA, Fla. (Oct. 7, 2019) Aviation Machinist's Mate Airman Recruit Gabriel Horak, left, and Aviation Machinist's Mate Airman Apprentice Maggie Seibal, practice replacing the fuel line of a jet engine at Naval Air Technical Training Center (NATTC). Aviation Machinist Mate’s maintenance course scenarios use generic gas turbine engines to familiarize students with jet, turbo prop, and helicopter engines. NATTC graduates about 15,000 Navy, Marine Corps and international students annually and is part of the Center for Naval Aviation Technical Training, which provides single-site management for Navy and Marine Corps aviation technical training. (U.S. Navy photo by Ensign Cody A. Milam/Released)