As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLT 3352 - DURING PREFLIGHT INSPECTION, THE CREW REPORTED SEVERAL EMERGENCY CABIN FLOOR LIGHTS TO BE INOPERATIVE. MAINTENANCE REMOVED AND REPLACED THE NR 1 AND NR 2 EMERGENCY LIGHT BATTERY PACKS IAW ATR 42 33-51-21. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE. (M)