Members of Ellsworth’s Boeing structural mechanics team inspect the lower surface of a B-1 bomber’s wing during a time compliance technical order inspection at Ellsworth Air Force Base, S.D., Jan. 23, 2013. This particular TCTO inspection is to assess and identify any possible fatigue or cracking within the wing and ultimately ensure a safe and healthy fleet. (U.S. Air Force photo by Airman 1st Class Anania Tekurio/Released)