As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - FLT 1598 - EN ROUTE CRP/DFW DURING CRUISE, HYDRAULIC SYSTEM LOW QUANTITY MESSAGE ON MFDU. AIRCRAFT PROCEEDED TO DFW, ACCOMPLISHED ALTERNATE LANDING GEAR AND FLAP PROCEDURES AND LANDED DFW WITHOUT INCIDENT. REPLACED BROKEN FITTING UNDER CABIN FLOOR FOR HYDRAULIC SYSTEM 1. SERVICED HYDRAULIC SYSTEM AND ACCOMPLISHED LEAK CHECK WITH NO DEFECTS FOUND. SYSTEM GROUND CHECKED, NORMAL OPERATION. (X)