As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DISASSEMBLED MAIN ROTOR TRANSMISSION AFTER CHIP LIGHT. FOUND THE FORWARD SUPPORT BEARING FOR THE TAIL ROTOR O/P SHAFT HAD A CRACKED INNER RACE AND THAT IT HAD FORCED THE SNAP RING OFF OF THE END OF THE SHAFT AND THEN THE INNER RACE GOUGED INTO THE COVER ASSEMBLY ABOUT .125 INCH DEEP.