As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ROUTINE D-CHECK INSPECTION, CORROSION WAS FOUND ON THE RIGHT WING LEADING EDGE UPPER PLATING AT STATION XFS 291. REPAIR ACCOMPLISHED BY REMOVAL OF DAMAGED AREA, FABRICATION AND INSTALLATION OF INTERNAL FILLERS AND AN EXTERNAL REPAIR DOUBLER IN ACCORDANCE WITH FAA PER APPROVED DRAWING C88-R18 AND ENGINEERING ORDER 57-DC8-509.