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-19 CHECK 2 EACH .5 INCH CRACKS WERE FOUND EMANATING FROM RIVET HOLES IN NR 6 SLAT INBOARD AUXILIARY GUIDE ATTACH AREA 42 INCHES AND 45 INCHES FROM INBOARD END. MAINTENANCE CUT OUT CRACKED NR 6 SLAT SKIN 42 INCHES TO 57 INCHES FROM INBOARD END; FABRICATED A FILLER AND SPLICE PLATE; INSTALLED REPAIR PARTS IAW B737-300 SRM 57-43-01 FIG 206.