As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-15 CHECK 6 EACH .3125 INCH CRACKS WERE FOUND IN NR 2 SLAT LOWER SKIN EMANATING FROM FASTENER HOLES BELOW THE INBOARD AUXILIARY TRACK AT FS 134.0 LEFT. MAINTENANCE REMOVED DOUBLER OUTBOARD OF DAMAGED AREA; CUT OUT CRACKED AREA OF NR 2 SLAT LOWER SKIN; FABRICATED A FILLER AND SPLICE PLATE; INSTALLED REPAIR PARTS IAW 737-300 SRM 57-43-01, FIG 206, PG 216-219.