As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - DURING MAINTENANCE INSPECTION, THE NR 2 EMERGENCY LIGHT BATTERY PACK WAS FOUND TO BE LOW. MAINTENANCE REMOVED AND REPLACED THE AFFECTED BATTERY PACK IAW ATR42-500 JIC 33-51-21, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE. (M)