As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
F/O MCDU WENT BLANK ON POWER TRANSFER TO ENGINE GENERATORS. ACFT GROUNDED. RESET POWER, SYS RESET IAW AMM 34-61-0034-61-01-000-802 & MM 34-61-01-400-802 - OPS NORMAL. IAW MM 34-61-00-750-802, VERIFIED MCDU OPS SOFTWARE 3463-SMI-001-02 INSTALLED.