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, FOUND THE A PREVIOUS REPAIR ON UPPER INBOARD END OF NR 4 SLAT WEDGE DELAMINATED BETWEEN SLAT STA 12.25 AND 16.25. MAINTENANCE REMOVED DAMAGED SKIN ON UPPER INBOARD END OF NR 4 SLAT WEDGE; FABRICATED A FILLER AND REPAIR DOUBLER; BONDED REPAIR PARTS TO SLAT WEDGE IAW B737-300 SRM 51-70-10, FIG 31.