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 THE FORWARD EMERGENCY LIGHTS IN THE CABIN WERE INOPERATIVE. MAINTENANCE REMOVED AND REPLACED THE AFFECTED BATTERY PACK IAW ATR42-320 MM 33-51-21, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE. (M)