As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - DURING C-18 CHECK THE LT WING NR 2 SLAT WAS FOUND DELAMINATED AT OUTBOARD UPPER TRAILING EDGE, SLAT STA 246.27-254.27. MAINTENANCE CUT OUT DELAMINATED SKIN AT OUTBOARD UPPER TRAILING EDGE; FABRICATED REPAIR DOUBLERS; BONDED REPAIR PART TO SLAT SKIN IAW B737-300 SRM 51-70-10, FIG 16, PG 67-69.