Isochronal inspection
Airman 1st Class Joshua Gomez, 28th Maintenance Squadron aerospace maintenance technician, removes panels off a B-1 during an isochronal inspection at Ellsworth Air Force Base, S.D., Jan. 23, 2013. During an isochronal inspection, every inch of the B-1 is looked at and inspected for anything that is out of the ordinary that could prevent the aircraft from performing its mission . (U.S. Air Force photo by Airman 1st Class Anania Tekurio/Released)