As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE BEARING P/N: 3T6510V00255 S/N: 16144 WAS INSTALLED NEW INTO BEARING SUPPORT P/N: 3T6510A00443 S/N: THB9999 AT 3565.2 HRS. THE BEARING SUPPORT WAS INSTALLED ONTO N139CN AT 8141.6 HRS AND WAS REMOVED FROM THE AIRCRAFT AT 8620.0 HRS DUE TO HIGH VIBRATION RECOGNIZED BY VXP. WHEN THE BEARING SUPPORT WAS INDUCTED INTO THE SHOP THE BEARING RACE WAS CRACKED. THE BEARING ONLY HAD 478.8 HOURS SINCE INSTALL. THE BEARING WAS REMOVED FROM BEARING SUPPORT P/N: 3T6510A00443 S/N: THB9999 AT 4044.0 HRS.