As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FO FMC FAILED 3 TIMES ENROUTE WITH VTK AND MAP DISPLAYED AND SINGLE FMC MESSAGE, PROBLEM RESOLVED ITSELF BEFORE QRH COULD BE USED. GROUNDED - YES. PERFORMED FMC 1 & 2 C/B RESET PER B737-900 AMM 34-61-00 FOR THE MAP AND VTK NUISANCE FAULTS. VERIFIED NO FURTHER DEFECTS.