As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-CHECK, FOUND RT WING UPPER LEADING EDGE BETWEEN NR 3 AND NR 4 ENGINES AREAS OF BULGING SKIN CORROSION LEVEL 2 SMALL CRACKS. REMOVED CORROSION FOUND BEYOND LIMITS IAW SRM 57-2-0 CUT OUT DAMAGE SECTION, FABRICATED DOUBLER AND FILLER IAW DER 950051-1098 TREATED PRIMED AND INSTALLED IAW DER ARW 950051-1098.