As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HELICOPTER RECEIVED 2 TRANSMISSION CHIP CAUTION LIGHTS IN 2.9 HOURS. MAIN INPUT GUILL WAS REMOVED FOR INSPECTION OF THE BEVEL GEAR. THE BEVEL GEAR INSPECTION REVEALED 1 MISSING GEAR TOOTH AND AN ADJACENT TOOTH CRACKED. TRANSMISSION SENT TO MFG FOR EVALUATION AND OVERHAUL. NO RECOMMENDATION TO PREVENT RECURRENCE.