As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STL - FLT 7328 - HYDRAULIC PRESSURE WENT TO ZERO, CREW PERFORMED EMERGENCY PROCEDURES AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED HYDRAULIC PRESSURE LINE AT HYDRAULIC PRESSURE FILTER. LEAK CHECK GOOD ON GROUND TEST OF SYSTEM. (M)