As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOR FLIGHT 2721 DURING AN OPERATIONAL CHECK FOUND THE EMERGENCY LIGHTS AFT OF THE GALLEY EMERGENCY EXIT SIGN TO BE INOPERABLE. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE NR 2 EMERGENCY POWER SUPPLY. THE AIRCRAFT WAS RETURNED TO SERVICE.