As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) PILOT APPLIED POWER TO NR 2 DC BUSS AND THE NR 2 STARTER-GENERATOR ENGAGED. THIS RESULTED IN THE NR 2 ENGINE STARTING TO SPOOL UP WITH THE STARTER SWITCH STILL IN THE OFF POSITION. TROUBLESHOOTING FOUND THE NR 2 GENERATOR RELAY MAIN CONTACTS WELDED IN THE CLOSED POSITION.