An F-35A Lightning II taxis down the flightline before a quarterly load crew competition at Luke Air Force Base, Ariz., Jan. 10, 2019. Six different aircraft maintenance units from Luke AFB competed in the 56th Fighter Wing Quarterly Load Crew Competition which evaluates technical proficiency, safety procedures and overall time to load munitions onto respective aircraft. (U.S. Air Force photo by Senior Airman Caleb Worpel)