As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
YQX - INFLIGHT JFK-BCN. CREW REPORTED LEFT HYDRAULIC QUANTITY LOSS. EMERGENCY DECLARED FLIGHT DIVERTED YQX LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SEVRICE. FOUND HYDRAULIC LINE LEAKING BEHIND NUMBER 3 SPOILER ACTUATOR. REPLACED HYDRAULIC LINE. SYSTEM GROUND CHECK NORMAL OPERATION.