Video

Video by Master Sgt. Jessica Kendziorek

Preparing for an inspection

403rd Wing

Feb. 12, 2019 | 0:30

Reserve Citizen Airmen of the 403rd Maintenance Group prepare a WC-130J Super Hercules aircraft for its routine “B” Isochronal Inspection March 25, 2020. There are three types of inspections or letter checks (A, B, and C), which increase in degree of meticulousness. The A check typically lasts five days, the B check is in-depth and lasts 18 days, while the C check is the most intrusive and the aircraft remains in the ISO dock for 22 days. After the WC-130J Super Hercules was brought into the Isochronal dock, the maintainers began the inspection by checking the struts, this causes the wings to dip and rise before they put the stands in place for the inspection. (U.S. Air Force video by Jessica L. Kendziorek)