As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON A TRANS-OCEANIC FLIGHT, THE NR 1 FMS CIRCUIT BREAKER TRIPPED. UPON RESETTING BY THE AIR CREW, THE NR 1 FMS COMPUTER BEGAN TO SMOKE. AIR CREW SHUT DOWN UNIT. UNIT RETURNED TO MANUFACTURER FOR REPAIRS. REPAIR BY MANUFACTURER REVEALED THE FAILURE WAS CAUSED BY THE INTERFACE BOARD, PN 00101765.