As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BS 1235-1241 WING CTR SECTION UPPER FACE LBL 12-33 FOUND BULGE UP ( 2 LOCATIONS). CORROSION BLEND OUT 0.140" BY 2.5" BY 6" EXCEED SRM 57-30-01 FIG 1 LIMITS. REPAIR WORK CARRIED OUT AS PER HX RS NR R57-14-35452 & UPS EO NR B747-5710-24065-A.