As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING A C CHECK INSPECTION, A CRACK WAS FOUND IN THE LOWER WING PLANK AT WING STATION WS 148.019.AT THE TIME OF REPORT, THE AIRCRAFT WAS STILL IN C CHECK. REPAIR ENGINEERING ORDER (REO) 601R-57-21-130 WILL BE APPLIED PRIOR TO RETURNING THE AIRCRAFT INTO SERVICE.