What was found
ON TAXI OUT, FMC DISAGREE MESSAGE WAS RECEIVED. ACFT GROUNDED. FOLLOWED QRH PROCEDURE FIXED THE PROBLEM. CONTINUED FLIGHT IAW QRH.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ON TAXI OUT, FMC DISAGREE MESSAGE WAS RECEIVED. ACFT GROUNDED. FOLLOWED QRH PROCEDURE FIXED THE PROBLEM. CONTINUED FLIGHT IAW QRH.