As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 5374 DURING CRUISE FLIGHT THE ADG AUTO DEPLOYED, RECEIVED AN AC NR 1 TRU MESSAGE FOLLOWED BY SMOKE IN THE COCKPIT, AIRCRAFT DIVERTED TO RDU AND LANDED SAFELY. IT IS BELIEVED THAT THE UTILITY BUS CONTACTOR IK4XD OVERHEATED CAUSING COLLATERAL DAMAGE TO THE LT CONTACTOR TRAY AND WIRING.