MAINTENANCE MATTERS U.S. Air Force F-16 fighter jet maintenance personnel prepare for an operational readiness inspection on McIntire Joint National Base, S.C., Dec. 13, 2008. The airmen are assigned to the 169th Fighter Wing. Operational readiness inspections measure a unit's warfighting capabilities in a combat environment. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 991724-E-FHW40-635.jpg Photo Gallery