As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY CHECK CENTER WING UPPER PANEL CORRODED AT RH APPROX STA. 1226 XCW 80.5 AT S-15. AFTER FURTHER EVALUATION BOING CERTIFIED THE BLENDED OUT AREA AS A PERMANENT REPAIR AND BEEN COMPLETED WITH ALL THE REQUESTED PROVISIONS AT R/H CENTER WING UPPER PANEL APPROX. STA 1226, XCW 80.5AT S-15 IAW MD-11, BOEING MESSAGE: WGN-WGN-35-0035-04C. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.