What was found
DURING A0521 NT, 100 HR TAIL ROTOR INSPECTION, WAS REMOVING THE TAIL ROTOR CROSS HEAD ASSEMBLY & FOUND THE BLADE END PC LINK BEARING CRACKED WITH A CHUNK MISSING FROM THE FLANGE AREA OF THE BEARING, THE SPHERICAL SURFACE WAS INTACT. R & R PC LINK. EXCESSIVE TORQUE WAS NOT NOTED AT REMOVAL.