What was found
MCN - MAJOR REPAIR - DURING C-18 CHECK CORROSION WAS FOUND ON THE AFT CARGO PIT FLOOR FRAME ON TOP OF THE FORWARD LEG OUTBOARD SIDE, INBOARD OF STR 27 L/H, WL 149, BS 807. MAINTENANCE REMOVED STIFFNER, STRINGER CLIP, AND CUTOUT DAMAGED SKIN ATTACHMENT (SHEAR TIE) BS 807, WL 149. FABRICATED REPAIR ANGLE AND NEW CLIP, AND INSTALLED STIFFNER AND REPAIR PARTS IAW B737-200 SRM 53-10-4, PG. 24 A, B, C, AND FIG. 9A.