As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LCQ - MAJOR REPAIR - DURING C-12 CHECK A 1.5 INCH CRACK WAS FOUND BETWEEN TWO RIVET HOLES ON LOWER EDGE OF NR 3 SLAT WS 321.5. MAINTENANCE CUT OUT DAMAGE ON LOWER EDGE OF NR 3 SLAT AT WS 321.5; FABRICATED A FILLER & DOUBLER; INSTALLED REPAIR PARTS IAW B737-300 SRM 57-43-01 FIG 206 PG 216-219.