As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN ROTOR TRANSIMISSION SENT IN FOR REPAIR DUE TO REPORTED CHIPS ON DETECTOR. TRANSIMISSION OPENED AND APPROXIMATELY 2/3 OF TOOTH (CENTER PORTION) FOUND MISSING FROM INPUT GEAR. PIECE LOCATED INSIDE TRANSIMISSION CASE. NO FURTHER DAMAGE NOTED.