What was found
DURING TAXI OUT, FMC DISAGREE DISPLAYED IN SCRATCH PAD AND BOTH NAV DU'S. ACFT GROUNDED. QRH PROCEDURE ACCOMPLISHED SUCCESSFULLY, OPS NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING TAXI OUT, FMC DISAGREE DISPLAYED IN SCRATCH PAD AND BOTH NAV DU'S. ACFT GROUNDED. QRH PROCEDURE ACCOMPLISHED SUCCESSFULLY, OPS NORMAL.