As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING ROUTING C CHECK INSPECTION , FOUND EVIDENCE OF DELAMINATION AT UPPER CHORD, 8 INCHES LONG, 6 1/2 INCHES FORWARD OF AFT MOUNT FITTING. WINGLET REMOVED AND RETURNED TO WINGLET SYSTEM FOR EVALUATION AND POSSIBLE RECTIFICATION. WINGLET SYSTEMS PROVIDED REPLACEMENT WINGLET FOR INSTALLATIOIN TO AIRCRAFT.