As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 41 - EWR - THE NR 1 HYDRAULIC SYSTEM QUANTITY DROPPED SLOWLY WHILE EN ROUTE FROM FCO TO EWR. THE SYSTEM WAS SHUTDOWN IN FLIGHT AND RESTARTED PRIOR TO LANDING. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE LOWER PRIMARY TRIM CONTROL VALVE LEAKING. THE VALVE WAS REMOVED AND REPLACED. LEAK AND OPERATIONAL CHECKS WERE GOOD. (M)