As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ALTERNATOR LIGHT CAME ON DURING CRUISE FLIGHT. FOLLOWED HELICOPTER FLIGHT MANUAL PROCEDURES AND RETURNED TO LANDING. UPON INSPECTION IT WAS DISCOVERED THAT THE ALTERNATOR BELT HAD BROKEN AND DEPARTED THE AIRCRAFT IN FLIGHT. NO OTHER DAMAGE RESULTED