As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) HYDRAULIC POWER PACK STARTED TO CYCLE FREQUENTLY AND THE HYDRAULIC LOW LIGHT CAME ON AND STAYED ON. HYDRAULIC CONTROL CIRCUIT BREAKER TRIPPED. PILOT RETURNED TO BASE AND DID A MANUAL EXTENSION AND LANDED AIRCRAFT WITH 3 GREEN. MAINTENANCE FOUND LINE GOING FROM MAINTENANCE VALVE TO POWER PACK GEAR UP SIDE TO BE LEAKING. LINE REPLACED AND CHECKED SERVICEABLE. (X)