As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) YELLOW HYDRAULIC CAUTION LIGHT CAME ON IN-FLIGHT, PILOT FOLLOWED APPROPIATE CHECK-LIST. EMERGENCY GEAR RETRACTION CARRIED OUT ACFT LANDED WITHOUT INCIDENT. ACFT HYD SYS INSPECTED AND FOUND SYSTEM PRESSURE SWITCH TO BE UNSERVICEABLE AND MAX. HYDRAULIC SYSTEM PRESSURE TO BE LOW ADJUSTED TO CORRECT PRESSURE RANGE USING PILATUS MAINTENANCE MANUAL AND SYSTEM PRESSURE SWITCH REPLACED. ACFT PUT ON JACKS AND GEAR SWINGS CARRIED OUT SATISFACTORY.