As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EWR - FLT 0432 - THE A-SYSTEM HYDRAULIC QUANTITY DROPPED TO ZERO IN FLIGHT. THE AIRCRAFT LANDED AT EWR WITHOUT INCIDENT. MAINTENANCE FOUND THE GROUND SPOILER CONTROL VALVE IN THE LT WHEELWELL LEAKING AT FITTING. THE O-RING AND REDUCER WERE REMOVED AND REPLACED. THE HYDRAULIC SYSTEM WAS SERVICED TO FULL AND LEAK CHECKS WERE GOOD. (X)