As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - DURING LINE CHECK INSPECTION, FUOND EMERGENCY AISLE PATH LIGHTING INOPERATIVE. MAINTENANCE REMOVED AND REPLACED THE AISLE PATH LIGHTING BATTERY PACK IAW ATR 42-500 MM 33-51-21. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE. (M)