As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CMH FLIGHT NR 3142 - THE CREW REPORTED PITOT 2 INOP MESSAGE ON THE EICAS IN FLIGHT AT 25000. THEY ALSO REPORTED SMOKE IN COCKPIT AND CABIN. EMERGENCY DECLARED AND THE AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE INSPECTED AND FOUND PITOT 2 CURRENT SENSOR RELAY (K0054) AND SOCKET (XK0054) BURNED. THE RELAY AND SOCKET WERE REPLACED AND OPERATIONAL CHECKS WERE GOOD.