What was found
ON TAXI OUT, FMC DISAGREE ON BOTH NDS. ACFT GROUNDED. COMPLIED WITH QRH AND RECOVERED BOTH FMCS.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ON TAXI OUT, FMC DISAGREE ON BOTH NDS. ACFT GROUNDED. COMPLIED WITH QRH AND RECOVERED BOTH FMCS.