As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING A HOVER FLIGHT HYDRAULIC WARNING LIGHT CAME ON. THE PILOT STABILIZED THE A/C AND RETURNED TO CAMP IN MANUAL CONTROL MODE. UPON INSPECTION, AME DISCOVERED BROKEN HYDRAULIC PUMP PULLEY DRIVE BELT. BELT REPLACED, A/C RETURNED TO SERVICE.