As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JFK - CREW REPORTED LEFT HYDRAULIC SYSTEM LOSS. EMERGENCY DECLARED FLIGHT RETURNED JFK LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND PRESSURE LINE GOING TO THE LEFT HYDRAULIC ELECTRIC PUMP RUPTURED. REPLACED PUMP. SYSTEM GROUND CHECK NORMAL OPERATION.