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-20 CHECK 3 CRACKS WERE FOUND ON NR 3 SLAT LOWER SKIN BELOW ACTUATOR AT WBL 232.40. MAINTENANCE CUT OUT DAMAGE ON NR 3 SLAT LOWER SKIN WBL 232.40; FABRICATED A FILLER AND SPLICE PLATE PER DWG 65C26603; INSTALLED REPAIR PARTS IAW 57-43-01 FIG 206 PG 216-219.