As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - NR 5926347 - DURING C-15 CHECK DISCOVERED DISBOND AT NR 4 SLAT UPPER AND LOWER SURFACE OF WEDGE AT INBOARD END. MAINTENANCE REPAIRED UPPER AND LOWER SURFACE OF NR 4 SLAT WEDGE END IAW BOEING 737-300 SRM 51-70-10-2R4 REPAIR 4.