As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:C M/D BS 1161-1164 LBL101-104 WING CTR SECTION UPPER SURFACE FOUND CORROSION. CORROSION BLEND OUT 0.043" BY 3" BY 4" EXCEED SRM LIMIT. BS 1161-1164 LBL101-104 WING CTR SECTION UPPER SURFACE CORRODED AREA REPAIRED AS PER RS R57-14-35581 AND UPS ENGINEERING FILE NUMBER 747-57-20106.