Airman 1st Class Jesse Burton, 28th Maintenance Squadron aerospace maintenance technician, inspects the hydraulic lines underneath a B-1 during an isochronal inspection at Ellsworth Air Force Base, S.D., Jan. 15, 2013. Hydraulic lines are routinely inspected to prevent failure which could result in a crash. (U.S. Air Force photo by Airman 1st Class Anania Tekurio/Released)