What was found
DURING C-CHECK, FOUND FUSELAGE RT SIDE, STRUCTURAL INTERCOSTAL RT L30R AND BETWEEN FS 188 AND FS 208, HAS CORROSION AT LOWER FLANGE. REMOVED INTERCOSTAL, FABRICATED NEW INTERCOSTAL IAW SRM 53-20-0, TREATED, PRIMED, AND INSTALLED IAW SRM 51-1-8, SRM 51-1-21, AND SRM 51-1-20D.