U.S. Air Force Tech. Sgt. Joshua Lucero, 374th Aircraft Maintenance Squadron electrical and environmental systems lead technician, grimaces as he installs a bleed air manifold coupling on a C-130 Hercules at Yokota Air Base, Japan, March 11, 2015. The wing section of the aircraft had numerous repairs that had to be done to it, including having to replace roughly 3,500 feet of wiring. (U.S. Air Force photo by Senior Airman Michael Washburn/Released)