As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-04 CHECK THE LT WING OUTBOARD FLAP INBOARD LOWER MID FLAP LEADING EDGE SKIN WAS FOUND CHAFED. MAINTENANCE CUTOUT CHAFED AREA OF INBOARD LOWER MID FLAP LEADING EDGE SKIN; FABRICATED A REPAIR DOUBLER; AND INSTALLED REPAIR PART IAW B737-300 SRM 57-30-01, FIG. 208.