As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPPER DECK SERVICE DOOR FRAME EMERGENCY LIGHTS 2EA INOP. PANEL OPENED FOR ACCESS TO BATTERY PACK. APPLIED POWER TO A/C & ALLOWED EMERGENCY LIGHTS TO CHARGE SEVERAL HOURS. UPPER DECK DOOR LTS OPERATED NORMAL PER B747 MM 33-51-04 INSTALLED & SECURED PANEL.