As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-CHECK AMES TAMPA FACILITY, FWD CARGO FLOOR DECK SUPPORT ANGLE UNDER FLOOR WEB AT I/B SIDE OF POWER DRIVE 6R CORRODED. REMOVED INTERCOSTAL. FOUND ORIG MAT .100", MAT LOSS .018", MAT REMAINING .082". AREA FOUND TO BE OUT OF LIMIT. LOCATED AND DRILLED NEW INTERCOSTAL IAW B767-300 DWG 143T5019-31AND SRM 51-40-03. FABRICATED NEW INTERCOSTAL IAW B767-300 SRM 51-40-02