As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT AT FL 330, F/O ND SHOWED AMBER MAP & VTK ALONG WITH AMBER FMC WARNING LIGHT AND SINGLE FMC OPERATION IN THE SCRATCH PAD, CONTINUED OPERATING UNDER SINGLE FMC OPS. ACFT GROUNDED. PERFORMED NR 2 FMC BITE CHECK IAW FIM 34-61, TASK 801. RT FMC FAILED. R & R NR 2 FMC IAW AMM 34-61-02. ALL OPS CK NORMAL.