As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INSPECTION, THE NR 4 OVERHEAD EMERGENCY LIGHT AND THE NR 3 AFT FLOOR PROXIMITY SWITCH WERE FOUND TO BE INOPERATIVE. MAINTENANCE REPLACED THE NR 4 EMERGENCY BATTERY AND OPERATIONAL CHECKS WERE GOOD. NO FURTHER DEFECTS WERE NOTED.