What was found
DURING STANDBY POWER CHECK, FIRST CLASS EMERGENCY FLOOR LIGHTS FAILED TO ILLUMINATE. REPLACED BATTERY PACK OPERATION NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING STANDBY POWER CHECK, FIRST CLASS EMERGENCY FLOOR LIGHTS FAILED TO ILLUMINATE. REPLACED BATTERY PACK OPERATION NORMAL.