As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MDW-PHL - DURING CRUISE, THE B SYSTEM WAS LOST WITH BOTH LIGHTS ON, QTY WENT OT ZERO. LANDED WITHOUT INCIDENT, A/C WAS TOWED TO GATE. REPLACED THE B-1 HYDRAULIC PRESSURE LINE, THE B-2 PUMP AND THE PRESSURE AND CASE DRAIN FILTER TO THE B SYSTEM. LEAK CHECKED AND FOUND OK. (M)