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-20 CHECK THE NR 1 SLAT WEDGE LOWER SURFACE WAS FOUND DELAMINATED OUTBOARD OF THE INBOARD AUXILIARY TRACK. MAINTENANCE CUT OUT DELAMINATED AREA ON NR 1 SLAT WEDGE LOWER SURFACE; FABRICATED REPAIR DOUBLERS; INSTALLED REPAIR PARTS IAW B737-300 SRM 51-70-10, REPAIR 21, 88C-88E.