As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) PILOTS REPORTED A INTERMITTENT PROBLEM WITH THE HYDRAULIC LIGHT COMING ON WHEN LANDING. THIS INDICATES THE HYDRAULIC PUMP CYCLED 6 TIMES IN 1 HOUR. AFTER SERVICING THE SYSTEM THE PROBLEM WOULD STILL OCCUR. IT WAS DECIDED TO CHANGE THE HYDRAULIC SERVICE SELECTOR VALVE. THE PROBLEM DID NOT RETURN AFTER THIS.