As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHT SIGN AT DOOR 3R IS ILLUMINATED AS WELL AS SEVERAL FLOOR PATH LIGHTS IN SEVERAL AREAS WITH EMERGENCY LIGHTS IN OFF AS WELL AS ARMED. BATTERY PACK FAILURE. REPLACED BATTERY PACKS M10817 AND M10818. EMER LIGHTS OPERATE NORMALLY.