What was found
MCN - MAJOR REPAIR - DURING C-13 CHECK FOUND DISBONDED AREA ON UPPER SURFACE OF THE LT INBOARD AFT FLAP 3.0 INCH FROM INBOARD END AT WBL 73 TO WBL 79. MAINTENANCE REMOVED DAMAGED AREA FROM UPPER SURFACE OF THE LT INBOARD AFT FLAP 3.0 INCH FROM INBOARD END AT WBL 73 TO WBL 79 AND CLEANED REPAIR AREA IAW BOEING 737-300 SRM 51-70-10-0 FIG 31. FABRICATED FILLER AND DOUBLER IAW BOEING 737-300 SRM 57-53-02 FIG 1. INSTALLED FABRICATED REPAIR PARTS IAW BOEING 737-300 SRM 51-70-10-0.