What was found
PDX- ON FLIGHT 9852 IN CRUISE NR 2 AC GENERATOR CAUTION LIGHT ILLUMINATED. RESET NR 2 AC GENERATOR PER CHECKLIST. NR 2 AC GENERATOR CAUTION LIGHT ILLUMINATED AGAIN THEN FLICKERED RANDOMLY. SHUT DOWN NR 2 AC GENERATOR AS BY CHECKLIST AND LEFT IT SHUT DOWN FOR REMAINDER OF FLIGHT. NOTICED PIN E INSIDE ELECTRICAL CONNECTOR 3421-P16-2 IS WORN. REPLACED PIN. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.