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, A CRACK WAS FOUND ON THE LEFT WING LEADING EDGE LOWER SURFACE AT STATION XRS 422.750. REPAIR WAS ACCOMPLISHED BY STOP DRILLING THE CRACK, FABRICATION AND INSTALLATION OF AN EXTERNAL REPAIR DOUBLER IN ACCORDANCE WITH ENGINEERING ORDER 57-DC8-434 AND FAA DER APPROVED DRAWING 857-04-97.