As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LCQ - MAJOR REPAIR - DURING C-17 CHECK SEVERAL CRACKS WERE FOUND AT RIVET HOLES ON NR 4 LEADING EDGE SLAT FROM SS 28 RT TO SS 84 RT. MAINTENANCE CUT OUT DAMAGED SECTION OF NR 4 SLAT SKIN FROM SS 28 RT TO SS 84 RT; FABRICATED A FILLER AND SPLICE PLATE; INSTALLED REPAIR PARTS IAW B737-300 SRM 57-43-01 FIG 206 SHEETS 3 & 4.