As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 906, MSY-PHL - WHILE ON APPROACH TO PHL AN EMERGENCY WAS DECLARED DUE TO THE LOSS OF SYSTEM 1 HYDRAULIC QUANTITY AND PRESSURE. MAINTENANCE REPLACED THE NR 3 MFS ACTUATOR DUE TO LEAKING. THE NR 1 ENGINE DRIVEN HYDRAULIC PUMP AND PRESSURE RETURN CASE DRAIN FILTERS WERE ALSO REPLACED.