As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB, THE NR 3 HYDRAULIC SYSTEM OVERHEAT LIGHT ILLUMINATED. FOLLOWED COCKPIT OPERATING MANUAL PROCEDURES AND LIGHT REMAINED ILLUMINATED. AIRCRAFT RETURNED TO NRT AND LANDED WITHOUT INCIDENT. REPAIRED WIRE FOR OVERHEAT INDICATION IN THE NR 3 HYDRAULIC BAY, OPERATIONAL CHECK GOOD.