As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
COMPLETE LOSS OF SYSTEM B HYDRAULICS IN FLIGHT. FOUND NR 1 B-SYSTEM ELEC PUMP LEAKING FROM PUMP DRAIN. CHECKED/REPLACED BOTH PRESSURE AND CASE DRAIN FILTERS, FOUND CLEAN. REPLACED NR 1 B-SYSTEM ELEC HYD PUMP. LEAK CHECK OF PUMP AND FILTERS OK.