As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C 4 IN OSCODA MICHIGAN (OSC), KALITTA MAINTENANCE FOUND EVIDENCE OF CORROSION ON UPPER CHORD IN AFT CARGO COMPARTMENT AT BS 1373 RBL 8 JM-44..FOUND TO BE OUT OF LIMITS. ACCOMPLISHED REPAIR OF UPPER CHORD AT BS 1373 RBL8 IAW B767-300 SRM 53-00-07 REPAIR 4..