As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT ENG LOW PRESSURE HYD PUMP LIGHT ON DURING CLIMB. RT ELECTRIC PUMP LOW PRESSURE LIGHT WITH COMPLETE LOSS OF SYSTEM B HYD PRESSURED FLUID. EMERGENCY DECLARED, RETURNED TO DEPARTURE, AND LANDED WITHOUT FURTHER INCIDENT. THE AIRCRAFT WAS GROUNDED. REPLACED HYDRAULIC SYSTEM B RESERVOIR DRAIN VALVE DUE TO LEAK. ALSO REPLACED RT ENGINE DRIVEN HYDRAULIC PUMP.