As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - DURING C-13 CHECK .3125 INCH CRACK WAS FOUND ON LT WING LEADING EDGE SKIN ABOVE NR 2 SLAT OUTBOARD AUXILIARY TRACK. MAINTENANCE PERFORMED BOND REPAIR ON LT WING LEADING EDGE SKIN ABOVE NR 2 SLAT OUTBOARD AUXILIARY TRACK IAW B737-300 SRM 51-70-17, PG 27 REPAIR 7.