As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - DURING C15 CHECK DISCOVERED 5 CRACKS, .500 INCHES EACH, ON THE BOTTOM OF THE NR 3 SLAT SKIN FROM SS 102.75L TO SS 107.75L. MAINTENANCE CUT OUT THE DAMAGED SKIN IAW BOEING 737-300 SRM 57-43-01-2R6. FABRICATED FILLER AND SPLICE PLATE IAW BOEING 737-300 SRM 57-43-01-2R6. INSTALLED FABRICATED REPAIR PARTS ON THE BOTTOM OF THE NR 3 SLAT FROM SS 102.75L TO SS 107.75LIAW BOEING 737-300 SRM 57-43-01-2R6.