What was found
MCN - MAJOR REPAIR - DURING C-13 CHECK A 2 1/2" CRACK WAS FOUND ON THE FORWARD CARGO COMPARTMENT FRAME BODY ABOVE STRINGER 21 L/H, BS 480. MAINTENANCE CUTOUT DAMAGED SECTION OF FRAME, REMOVED 3 EACH INTERCOASTALS FOR ACCESS, REMOVED 2 EACH STRINGER TIE CLIPS COMON TO REPAIR; FABRICATED 2 EACH REPAIR CHANNELS, 3 EACH REPAIR ANGLES, 2 EACH STRINGER CLIPS; INSTALLED REPAIR PARTS AND 3 EACH INTERCOASTALS IAW B737-200 SRM 51-40-3, PG. 1-6, FIG. 1.