As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER LANDING VTK CYCLES ON AND OFF CAPT SIDE DU. THE FMC IS REMOVED FROM THE SELECTION IN MENU. GROUNDED - YES. RESET POWER TO AIRCRAFT. VTK MESSAGE EXTINGUISHED IN BOTH CAPT & F/O DU'S AND FMC PROMPT RESTORED TO CDU MENUS. FMC OPS NRML REF FIM 34-61 TASK 801, NO FAULTS REMAIN.