As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN UPPER WING BOX HAS CORROSION AT STA 1231 FWD OF STRINGER 15 LBL 17.00 REMOVED FASTENERS TO GAIN ACCESS TO CORROSION AT MAIN CABIN UPPER WING BOX STA 1231 FWD OF STR 15 LBL 17 PER REF MD-11 SRM 57-10-01-1A-1 AD1. PERFORMED HFEC SURFACE/OPEN HOLE INSP PER NDTSPM 06-10-01.001/06-10-01.003. NO DEFECTS NOTED AT REWORKED AREA AT MAIN CABIN UPPER WING BOX STA 1231 FWD OF STRINGER 15 LBL 17.00