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