As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAPTAINS FMC FAILED IN CRUISE FLIGHT WITH MAP AND VTK FLAGS. PERFORMED FMC FAIL CHECKLIST AND CONTINUED OPERATIONS WITH FMC SELECT IN "BOTH ON RIGHT." GROUNDED - YES. REBOOTED L/H FMC REF B737-900 FIM 34-61 TASK 836. OPS RESTORED. VERIFIED VTK & MAP FLAGS PULLED. FMC SWITCH RESELECTED TO NORMAL.