As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - DURING -18 CHECK THE NR 2 SLAT INBOARD UPPER TRAILING EDGE WAS FOUND DELAMINATED AROUND PREVIOUS REPAIR. MAINTENANCE REMOVED EXISTING REPAIR AND DELAMINATED SKIN ON NR 2 SLAT INBOARD UPPER TRAILING EDGE; FABRICATED REPAIR DOUBLERS; INSTALLED REPAIR PARTS IAW B737-300 SRM 51-70-10, FIG 16, PG 67-69.