What was found
DURING CRUISE, EN ROUTE FROM MCO TO PHL, CAPTAIN REPORTED THE LOSS OF BOTH TRANSFORMER RECTIFIERS. THE NR 2 AND NR 3 TRANSFORMER RECTIFIER CIRCUIT BREAKERS WERE TRIPPED. FLIGHT DIVERTED TO CLT AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE DUPLICATED FAILURE AND FOUND THE NR 2 ENGINE GENERATOR FEEDER FIREWALL DISCONNECT D410/D3024 A PHASE BURNT. REPLACED FIREWALL RECEPTACLE D3024 PER SWPM 20-61-19 AND WDM 24-21-21. ALSO, REMOVED AND REPLACED HARNESS ASSEMBLY FROM D410 TO NR 2 ENGINE GENERATOR. ACCOMPLISHED SATISFACTORY AC GENERATION SYSTEM OPERATIONAL TEST PER MM 24-21-00 AND SATISFACTORY TEST OF TR'S NR 2 AND NR 3 PER MM 24-21-31.