As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TYS - FLT 3343 - AFTER ENGINE START IN TYS, THE NR 2 DC GENERATOR WOULD NOT COME ON-LINE AND THE 'DC BUS' LIGHT ILLUMINATED. THE CREW IMMEDIATELY SHUT DOWN THE NR 2 ENGINE. MAINTENANCE PERSONNEL REPLACED THE NR 2 START CONTACTOR RELAY. ALL SYSTEMS OPERATED SATISFACTORILY. (X)