As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EN ROUTE TO NRT NR 2 HYD SYSTEM QUANTITY CONTINUED TO DECREASE TO ZERO. CREW FOLLOWED COM PROCEDURE AND CONTINUED FLT AFTER CONSULTING MC. FLIGHT CONTINUED TO NRT FOR UNEVENTFUL LANDING. FOUND NR 2 MAIN PUMP LEAKING AND FITTING LEAKING.