As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) HYD BLOCK LIGHT CAME ON IN FLIGHT. PILOT RETURNED TO BASE AND CALLED OUT RESCUE CREW. LANDED WITHOUT DIFFICULTY. SOLENOID VALVE REPLACED AND AIRCRAFT RETURNED TO SERVICE ON APRIL 20. AIRCRAFT TEST FLOWN FOR 30 MINUTES AND NO FURTHER LIGHT REPORTS.