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-16 CHECK 7 EACH .3125 INCH CRACKS WERE FOUND IN LOWER SURFACE SKIN OF NR 5 SLAT BETWEEN SLAT STATIONS 166 - 215. MAINTENANCE CUT OUT DAMAGE IN LOWER SURFACE SLAT SKIN FROM SS 166 TO SS 215 RT; FABRICATED A FILLER AND SPLICE PLATE; INSTALLED REPAIR PARTS IAW B737-300 SRM 57-43-01 FIG 206.