As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-CHECK THE LT AFT SKIN WAS FOUND TO BE CRACKED AROUND FASTENERS BETWEEN FRAMES 78-81 AND STRINGERS 3-6L. MX REAMED THE SKIN TO REMOVE THE CRACKS AND PERFORMED BUSHING REPAIRS IAW EC5330-02080 AND EC5330-02608. THE ACFT WAS APPROVED FOR RETURN TO SERVICE.