What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED INTO ORD DUE TO THE FLIGHT CREW REPORTING THAT THE NR 1 GENERATOR FAILED DURING FLIGHT. THE AIRCRAFT LANDED SAFELY AT ORD AND WAS TOWED TO THE GATE. MAINTENANCE FOUND #1 IDG CONNECTOR 400VC1 AND 400VC1A HAD BURNT CONTACT ON BOTH THE AIRCRAFT SIDE AND THE ENGINE SIDE OF THE CONNECTOR. MAINTENANCE REPLACED THE #1 ENGINE IDG HARNESS PER AMM 24-21-43, REPLACED THE CONTACTS AND CANNON PLUG JACK 400VC1 PER ESPM 20-48-23 / ESPM 20-44-14. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED WITH NO ISSUES NOTED.