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-15 CHECK 3 EACH .125 INCH CRACKS WERE FOUND IN NR 6 SLAT LOWER SKIN AT AFT ROW RIVET HOLES INBOARD OF ACTUATOR ATTACH FITTINGS SLAT STA 291 RT THRU SLAT STA 294 RT. MAINTENANCE CUT OUT DAMAGE IN NR 6 SLAT LOWER SKIN FROM SS 291 RT TO SS 294 RT; FABRICATED A FILLER AND SPLICE PLATE; INSTALLED REPAIR PART IAW B737-300 SRM 57-43-01 FIG 206.