As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING OVERNIGHT CHECK, FOUND EMERGENCY LIGHTS MAIN DECK RIGHT SIDE AISLE EXIT SIGNS IN AISLE JUST FORWARD AND AFT OF DOOR 2R INOP. MAINTENANCE REMOVED AND REPLACED BATTERY PACK. OPERATIONAL CHECKED GOOD AND AIRCRAFT WAS RETURNED TO SERVICE.