As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-CHECK INSPECTIONS, A CRACK WAS FOUND IN THE AFT OTBD CORNER OF THE WING BOX LADDER PLATE UNDER STRESS PANEL. AN EO WAS ISSUED REF RD8-57-4106 TO INCORPORATE RD8-57-2375 TO REPAIR THE LADDER PLATE. REPAIR WORK WAS THEN COMPLETED. (K)