As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) IN FLIGHT NOISE WAS HEARD AND SMALL AIRFRAME VIBRATION. A/C LANDED AS PRECAUTION AT AIRPORT. AIRCRAFT INSPECTED AND PROBLEM NOT DETECTED. COULD NOT DUPLICATE NO ISE OR VIBRATION. A/C FLOWN TO BASE AIRPORT. UPON FURTHER INVESTIGATION BEARING IN SPEED REDUCER FOUND FAILED DAMAGE LIMITED TO BEARING.