What was found
DURING POST-FLIGHT INSPECTION, THE CREW REPORTED THAT THE EMERGENCY LIGHT CIRCUIT BREAKER WAS POPPING. MAINTENANCE INSPECTED THE AIRCRAFT, REPAIRED WIRING AT THE NR 4 EMERGENCY LIGHT BATTERY PACK, AND REMOVED AND REPLACED THE NR 1 EMERGENCY LIGHT BATTERY PACK. OPERATIONAL CHECKS WERE PERFORMED WITHOUT DEFECT, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.