What was found
MCN - DURING C19 CHECK DISCOVERED THE LT OUTBOARD AFT FLAP; INBOARD AFT CORNER HAD SIGNS OF DELAMINATION. MAINTENANCE CUT OUT AND REMOVED THE DAMAGED AREA FROM THE LT OUTBOARD AFT FLAP INBOARD AFT CORNER IAW BOEING 737-300 SRM 51-70-10-2R4. FABRICATED DOUBLER, FILLER AND REPAIR CORE IAW BOEING 737-300 SRM 51-70-10-2R4. BONDED FABRICATED REPAIR PARTS TO THE LT OUTBOARD AFT FLAP, INBOARD AFT CORNER IAW BOEING 737-300 SRM 51-70-10-2R4.