As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - DURING POST-FLIGHT INSPECTION, THE CREW REPORTED THAT THREE EMERGENCY LIGHTS REMAINED ILLUMINATED WHEN POWER WAS REMOVED FROM THE AIRCRAFT. MAINTENANCE REMOVED AND REPLACED THE AFFECTED EMERGENCY LIGHT POWER SUPPLY BATTERY PACK, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE. (X)