As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - DURING C16 CHECK DISCOVERED RT OUTBOARD AFT FLAP DELAMINATED AT THE INBOARD TRAILING EDGE FROM WBL 289R TO WBL 309R. MAINTENANCE REMOVED DISBONDED SKIN AND CORE IAW BOEING 737-300 SRM 51-70-10-2R4. FABRICATED REPLACEMENT CORE AND DOUBLER IAW BOEING 737-300 SRM 51-70-10-2R4. BONDED REPAIR PARTS TO THE RT OUTBOARD AFT FLAP INBOARD TRAILING EDGE, WBL 289R TO WBL 309R, IAW BOEING 737-300 SRM 51-70-10-2R4.