As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A ROUTINE INSPECTION, THE LT AFT WING ATTACHMENT FITTING WAS FOUND TO HAVE A LOOSE ATTACHING BOLT. THIS PROBLEM HAS BEEN TYPICAL ON A FLEET OF 6 AIRCRAFT OF THIS MODEL. THE PARTS IN QUESTION ARE: P/N-401-187 BOLT (AN5-7A), P/N-66762-00 (PLATE-AFT SPAR) AND P/N-62448-02 (FITTING-LWR LT FUSELAGE). ONLY THE LT SIDE FITTING HAS BEEN FOUND LOOSE ON ANY OF THESE AIRCRAFT. THE MANUFACTURER HAS BEEN ADVISED OF THIS PROBLEM AND HAS INSPECTED THE SUBJECT AIRCRAFT. THE ONLY PREVENTIVE MAINTENANCE AT THIS TIME IS REPETITIVE TORQUING OF THE BOLT, VERY OFTEN.