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, CRACKS WERE DETECTED JUST OUTBOARD OF THE INBOARD STUB WING AREA ON THE LEFT WING UPPER LEADING EDGE. REPAIRED ACCOMPLISHED REMOVAL OF DAMAGED AREA FABRICATION AND INSTALLATION REPAIR OF DOULBER IN ACCORDANCE WITH THE DOUGLAS STRUCTURAL REPAIR MANUAL.