As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 0219 - EWR - THE 'A' SYSTEM HYDRAULIC QUANTITY DROPPED TO ZERO ACCOMPANIED BY ILLUMINATION OF THE LOW PRESSURE LIGHTS DURING CLIMB-OUT OF EWR. 'ABNORMAL' PROCEDURES WERE COMPLIED WITH, FUEL WAS DUMPED, AND THE AIRCRAFT WAS RETURNED TO EWR WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE NR 2 LEADING EDGE FLAP ACUTATOR WAS REPLACED. ALL FLIGHT CONTROLS WERE CYCLED AND LEAK AND OPERATIONAL CHECKS WERE GOOD. (M)