As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ROUTINE C-CHECK INSPECTION, CORROSION WAS DETECTED AROUND SCREW HEADS ON THE LEFT WING OUTBOARD LEADING EDGE XFS892 TO XFS930. REPAIR ACCOMPLISHED REMOVAL OF THE CORROSION, FABRICATION AND INSTALLATION OF AN EXTERNAL REPAIR DOUBLER IN ACCORDANCE WITH THE DOUGLAS STRUCTURAL MAINTENANCE MANUAL.