As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NO FMC PROMPT ON F/O CDU . UNABLE TO SELECT FMC. REPLACED RIGHT CDU PER TASK 34-61-02-420-801. SYSTEM OP''S CHECKED GOOD.PARTS USED: 27-3161-9-0004,QTY :1 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1753966 SN OFF 8806 UNIT, CONTROL D OFF 27-3161-9-0004 8806 ON 27-3161-9-0004 8541