As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE AC WAS IN FOR HVY CK FOUND LH WING SLAT 2 OB TRACK UPPER LEADING EDGE CRACKED. AAR MX REPAIRED CRACK TO LH WING SLAT 2 OB TRACK UPPER LEADING EDGE PN 170-31033-021 IAW SRM 57-49-01 REPAIR 6. FOR DETAILS OF WORK PERFORMED SEE AAR NRC # 4500474-5000-0013