As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE BASE INSPECTION FOR FLIGHT 2712 THE NR 2 EMERGENCY FLOOR LIGHTS FAILED TO LIGHT AFTER BATTERY REPLACEMENT. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE EMERGENCY POWER SUPPLY. THE AIRCRAFT WAS RETURNED TO SERVICE.