As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AN OPERATOR EXPERIENCED A LOSS OF HYDRAULIC SYSTEM NR 2, IN FLIGHT, DUE TO A FRACTURED CHECK VALVE. A VISUAL INSPECTION OF THE CHECK VALVE REVEALED A CRACK AROUND THE CIRCUMFERENCE OF THE VALVE BODY. THE CHECK VALVE IS BEING RETURNED TO MFG FOR INVESTIGATION.