As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A VISUAL INSPECTION OF THE TAIL ROTOR DRIVE BEARINGS IT WAS DISCOVERED THAT THE INNER SLEEVE OF THE #3 BEARING HAD SPLIT AND COME OFF OF THE DRIVESHAFT AND THE BEARING AND WAS FOUND SITTING BELOW THE BEARING ASSEMBLY. THIS CAUSED NO VISUAL DAMAGE TO THE DRIVESHAFT ASSEMBLY BUT WE HAVE NEVER SEEN A SLEEVE SEPARATE LIKE THAT BEFORE.