As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TRANSMISSION LOWER CHIP LIGHT ILLUMINATED IN-FLIGHT. AFTER LANDING, INSPECTION FOUND FAIRLY LARGE FERROUS CHIP THAT APPEARED LIKE PIECE OF GEAR TOOTH. TEAR-DOWN INSPECTION REVEALED INPUT SPIRAL BEVEL GEAR CRACKED 360 DEGREES THROUGH THE RING. THE CRACK PATH TRAVELED THROUGH A BOLT HOLE. RING GEAR REPLACEMENT IN PROGRESS AND CRACKED RING GEAR SENT TO BELL HELICOPTER PRODUCT SUPPORT ENG FOR EVALUATION AND ANALYSIS. (X)