ISO: Force behind fleet
U.S. Air Force 19th Maintenance Squadron Airmen perform various steps of isochronal inspections on Little Rock Air Force Base, Arkansas, Oct. 19, 2018. ISO inspections are an in-depth inspection of the entire aircraft. ISO inspections require different career fields to be properly executed. (U.S. Air Force photo by Airman 1st Class Rhett Isbell)

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Photo by: Airman 1st Class Rhett Isbell |  VIRIN: 181019-F-PB217-1017.JPG