As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE NR 1 HYDRAULIC SYSTEM LOST FLUID EN ROUTE FROM TPE-NRT. AIRCRAFT CONTINUED TO NRT, LANDED WITHOUT INCIDENT, AND WAS TOWED INTO THE GATE. RETIGHTENED THE HYDRAULIC PRESSURE LINE FOR THE LEFT BODY LANDING GEAR TRUCK POSITION ACTUATOR. OPERATIONAL CHECK GOOD.