As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENROUTE, ACFT LOST HYDRAULIC PRESSURE. DIVERTED. LANDED UNEVENTFUL. FOUND O-RING ON HYDRAULIC SYSTEM PRESSURE TRANSDUCER HAD FAILED RESULTING IN LOSS OF HYDRAULIC FLUID. REPLACED O-RING. LEAK AND FUNCTIONAL CHECKED GOOD. BOTH ENGINE DRIVEN HYDRAULIC PUMPS WERE REPLACED AS A PRECAUTIONARY MEASURE.