What was found
DURING C-04 CHECK A 1 INCH CRACK WAS FOUND AT THE INBOARD FORWARD UPPER CORNER OF THE AFT CANOE FAIRING, RT ENGINE PYLON. MAINTENANCE CUTOUT CRACKED AREA OF AFT CANOE FAIRING, RT ENGINE PYLON; FABRICATED A FILLER AND DOUBLER; AND INSTALLED REPAIR PARTS IAW B737-300 SRM 54-50-70, FIG. 204.