As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAXI OUT, FMC DISAGREE WAS ANNUNICATED ON THE NDS. QRH PROCEDURES WERE ACCOMPLISHED WITH NO FURTHER PROBLEMS NOTED. PERFORMED FIM 34-61, TASK 835 IAW INSTRUCTIONS FROM AMM 34-61-01-800-801. FMC DISAGREE ON GROUND IS A NUISANCE ANOMALY AND WAS CLEARED.