As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C CHECK INSPECTION WAS FOUND A CRACK ON LEFT WING LEADING EDGE LOWER SPLICE PLATE - ISS 257-. DAMAGED AREA WAS REPAIRED IAW EWO 767-57-035 AND BOEING SERVICE REQUEST 1-773976194. FAA FORM 8100-9 WAS ISSUED APPROVING THIS REPAIR.