As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - EN ROUTE FROM YEG TO SEA, THE UTILITY AND FLIGHT CONTROL HYDRAULIC QUANTITY DROPPED TO ZERO. AIRCRAFT DIVERTED TO PDX. MAINTENANCE INSPECTED THE AIRCRAFT AND FOUND THE HORIZONTAL STABILIZER ACTUATOR LEAKING FLUID AND REPLACED SAME. OPERATIONAL CHECK AND LEAK CHECKS ARE GOOD. AIRCRAFT RETURNED TO SERVICE.