As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FWD PIT CORROSION UNDER NUTPLATE LOWER SIDE OF WEB 566-588 RBL 4. REMOVED AND EVALUATED FWD CARGO INTERCOSTAL AT STA 566-588 RBL 4 AND FOUND OUT OF LIMITS, IAW B767 SRM 51-10-02. FABRICATED NEW AND INSTALLED INSTERCOSTAL, IAW B767 SRM 51-40-02 AND 53-30-53.