As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - FLT 1322 - DURING CRUISE, LEFT HYDRAULIC QTY AND PRESSURE DECREASED TO ZERO. FLIGHT AIR INTERRUPTED AND RETURNED DFW AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND LEFT PRESSURE TRANSMITTER CASE SPLIT AND LEAKING. REPLACED LEFT PRESSURE TRANSMITTER AND SYSTEM LEAK CHECKED WITH NO LEAKS. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)