What was found
CLT - FLT 495 - FLIGHT DEPARTED EWR, WITH THE NR 1 GENERATOR ON MEL 24-1. ON APPROACH TO CLT, CREW REPORTED THE NR 2 GENERATOR TRIPPED OFF LINE. CREW RESET THE GENERATOR, THEN HEARD A POP WHICH RESULTED IN THE LOSS OF THE NR 2 SYSTEM-A ELECTRICL HYDRAULIC PUMP, AUTO BRAKES, FUEL BOOST PUMPS, AUTO SPOILERS AND CAPTAINS RADIO'S. CREW NOTEICED THE NR 2 AND NR 3 TRANSFORMER/RECTIFIER CIRCUIT BREAKERS POPPED. UPON LANDING, ALL SYSTEMS CAME BACK ON BY THEMSELVES. FLIGHT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE NR 2 GENERATOR ENGINE FIREWALL CONNECTOR D410 AND HARNESS CONNECTOR PER BOEING STANDARD PRACTICES CHAPTER 20-60-06. ACCOMPLISHED SATISFACTORY OPERATIONAL CHECKS PER MM 24-21-