What was found
MCN - MAJOR REPAIR - DURING C-13 CHECK THE OUTBOARD UPPER LEG OF STRINGER CLIP WAS FOUND CRACKED ON THE AFT SIDE OF FRAME 663, STR 11 LT, ABOVE CABIN WINDOW. MAINTENANCE REMOVED DAMAGED STRINGER CLIP AT BS 663, STR 11 LT, FABRICATED A NEW STRINGER CLIP AND INSTALLED REPAIR IAW B737-200 SRM 51-30-5, PG 8-9 AND SRM 51-30-5 PG 4-5.