As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN HEAVY MAINTENANCE PERFORMING INSPECTIONS IT WAS NOTED THAT THE NR 2 LEADING EDGE SLAT OTBD END HAS OIL CANNING. OUTER SKIN DAMAGED AREA WAS CUT OUT DIM 1.25 INCH BY 1.875 INCH, CUT OUT INNER SKIN DAMAGE DIM 4.25 INCH BY 5 INCH. FABRICATED COVER, DOUBLER AND 2 FILLERS. INSTALLED REPAIR, NO OTHER DEFECTS NOTED. AIRCRAFT WAS RETURNED TO SERVICE.