As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CRUISE FLIGHT AT 340, NR 2 MCDU WENT BLANK. STRONG BURNING ELECTRIC ODOR APPARENT WITH SOME SMOKE IN AREA OF MCDU NR 2. PULLED CIRCUIT BREAKER AFTER LANDING. REMOVED NR 2 MCDU AND FOUND EVIDENCE OF INTERNAL ELECTRICAL FAILURE. NO OTHER DAMAGE FOUND TO AREA EXTERNAL OF MCDU OR CONNECTOR PLUGS. REPLACED NR 2 MCDU IAW 31-65-01-4. OPERATES NORMAL.