As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BS 1240 LBL 90-94 WING CENTER SECTION SKIN UPPER SURFACE FOUND CORROSION. CORROSION BLEND OUT 0.078 X 3 X 3" EXCEED SRM 57-30-01 LIMIT. BS 1240 LBL 88.5-94 WING CENTER SECTION UPPER SKIN CORRODED AREA REPAIRED AS PER RS R57-14-35432 AND UPS EO B747-5710-23803-A.