As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER DISASSEMBLING AIRCRAFT FOR REFURBISHMENT, RT WING MAIN SPAR ATTACH FITTING WAS FOUND ERODED. ADDITIONAL SIGNS OF FRETTING AND EROSION WERE DETECTED AT THE LOWER END OF THE LIFT STRUT. ALL WEAR WAS INDICATIVE OF A LIMITED FORE AND AFT 'SWING' OF THE ENTIRE WING STRUCTURE, AS OPPOSED TO GENERAL FRETTING IN THE CONTACT AREAS.