As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE CARRYING OUT A WINGS OFF INSPECTION AND COMPLYING WITH SERVICE BULLETIN 103/57-004 WING ATTACHMENT HARDWARE. INSPECTION, THE RT LOWER FORWARD WING ATTACH BOLT BARRELL NUT WAS FOUND CRACKED THROUGH THE ENTIRE THREADED PORTION OF THE NUT. THE NUT WAS REPLACED AND TORQUED IN ACCORDANCE WITH THE S/B RECOMMENDATIONS.