As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT FMC APPEARS TO HAVE FAILED. VTK WARNING DISPLAYED ON F/O CDU ALONG WITH SINGLE FMC OPERATIONS MESSAGE IN SCRATCH PAD OPERATING WITH FMC SWITCH IN BOTH ON LT POSITION. ACFT GROUNDED. PERFORMED FIM 34-61 TASK 836. FMC RESTORED TO NORMAL. REPLACED NR 2 FMC PER AMM 34-61-02/401.