As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - FLT 1744 - EN ROUTE DFW-DTW - AIR INTERRUPTED WITH HYDRAULIC SYSTEM 'A' LOSS OF QUANTITY AND PRESSURE. RETURNED TO DFW LANDED WITHOUT INCIDENT. REPLACED LEFT ELEVATOR PACK HYDRAULIC LINE. SERVICED SYSTEM. LEAK AND OPERATIONAL CHECK OK. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)