As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - DURING C18 CHECK DISCOVERED 5 CRACKS ON THE BOTTOM OF THE NR 2 SLAT SKIN AT THE INBOARD AUXILIARY TRACK, SS 175.00L. MAINTENANCE CUT OUT AND REMOVED DAMAGE PART OF SKIN IAW BOEING 737-300 SRM 57-43-01-2R FIG 201. FABRICATED FILLER AND SPLICE PLATE IAW BOEING 737-300 SRM 57-43-01-2R FIG 201. INSTALLED FABRICATED REPAIR PARTS IAW BOEING 737-300 SRM 57-43-01-2R FIG 201.