ALTUS AIR FORCE BASE, Okla. -- Ron Lucas, 97th Maintenance Directorate C-17 jet engine mechanic, works on an engine replacement for a C-17 Globemaster III during a home station check at Altus Air Force Base, Okla., June 9, 2009. Senior Airman Cherice Bryant

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Keywords: -17, .., 97th, air, altus, base, defense, directorate, engine, force, globemaster, iii, jet, maintenance, mechanic, military, okla., oklahoma, united, usa, war