As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION FOUND SEVERAL .375 INCH CRACKS FROM FASTENER HOLE AT NR 4 SLAT UPPER SKIN WHERE INBOARD HOOK MOUNTS. TWO .375 INCH CRACKS WERE FOUND AT NR 4 SLAT UPPER SKIN WHERE OUTBOARD HOOK MOUNTS. DOUBLERS WERE FABRICATED AND INSTALLED IAW SRM 57-50-3.