What was found
THE TRAILING EDGE OF THE RIGHT HORIZONTAL STABILIZER TIP CAP (PN 24W45002050251) WAS FOUND TO BE DELAMINATING ON THE TRAILING EDGE . THIS IS A COMPOSITE ASSEMBLY AND THE DELAMINATION WAS EASILY SEEN BY VISUAL INSPECTION. THE DEFECTIVE PART WAS REPLACED. THIS PART OF THE AIRCRAFT WAS INSPECTED DURING THE LAST 250 HOUR/A CHECK INSPECTION WITH NO DEFECTS NOTED. THE 250 HOUR/ A CHECK INSPECTION WAS PERFORMED 72 HOURS PRIOR TO THE DELAMINATION BEING DISCOVERED.