What was found
COCKPIT CDU FAIL DURING BUS TRANSFER. ACFT GROUNDED. DUPLICATED. REPLACED LT FMCS MCDU REF MM34-61-01, OPS CK NORMAL & S/W CK OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
COCKPIT CDU FAIL DURING BUS TRANSFER. ACFT GROUNDED. DUPLICATED. REPLACED LT FMCS MCDU REF MM34-61-01, OPS CK NORMAL & S/W CK OK.