As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - CENTER HYDRAULIC SYSTEM WARNING WITH CENTER HYDRAULIC LOSS. RETURNED TO DFW LANDED WITHOUT INCIDENT. AIRCRAFT WAS TOWED TO GATE. AIRCRAFT REMOVED FROM SERVICE. REPLACED CENTER AIR DRIVEN HYDRAULIC PUMP, CASE, PRESSURE FILTERS, AND TEMPERATURE SWITCH. SYSTEM GROUND CHECK NORMAL OPERATION.