As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DISCOVERED TELFLON FLAKING OUT OF BEARING RACE BETWEEN INNER SELF ALIGNING BALL AND OUTER RACE. ALL THREE STAR ARM BEARINGS AREPLACED DUE TO WEAR. DISCOVERED WHEN DISASSEMBLING HEAD TO INSTALL LOW TEMPERATURE SPHERICAL THRUST BEARINGS.