As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INSPECTION FOUND EXTERIOR EMERGENCY LIGHT INOPERATIVE AT RIGHT FORWARD OVERWING. MAINTENANCE REPLACED POWER SUPPLY BPS7-3 AND DEFECTIVE FUSE ON M7919 POWER SUPPLY. PERFORMED EMERGENCY LIGHTS CHECK, OK AS PER B747-400 AMM NR 33-51.