As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOSS OF HYDRAULIC FLUID NR 3 HYDRAULIC SYSTEM AFTER TAKEOFF. SYSTEM DEPRESSURIZED AND STABILIZED AT 1.3 GALLONS. ALL SYSTEMS WORKED NORMAL ON APPROACH TO JFK. FOUND HYDRAULIC LINE WORN THROUGH ON NR 3 PYLON IN THE GAP COVER AREA. REPLACED LINE LEAK CHECKED OK PER MAINTENANCE MANUAL 29-11-00 PAGE 602.