What was found
DURING TAXI OUT FMC DISAGREE MESSAGE ILLUMINATED. ACFT GROUNDED. QRH PROCEDURE ACCOMPLISHED, FMC DISAGREE MESSAGE NO LONGER DISPLAYED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING TAXI OUT FMC DISAGREE MESSAGE ILLUMINATED. ACFT GROUNDED. QRH PROCEDURE ACCOMPLISHED, FMC DISAGREE MESSAGE NO LONGER DISPLAYED.