What was found
F/O`S CDU HAS A BARELY OPERABLE LINE SELECT KEY. R 1 MUST BE PUSHED MANY TIMES IN ORDER TO SELECT INTERFACE WITH THE FMC. REMOVED AND REPLACED F/O'S FMC MCDU, OPS CHECK GOOD REF MM 34 61 01.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
F/O`S CDU HAS A BARELY OPERABLE LINE SELECT KEY. R 1 MUST BE PUSHED MANY TIMES IN ORDER TO SELECT INTERFACE WITH THE FMC. REMOVED AND REPLACED F/O'S FMC MCDU, OPS CHECK GOOD REF MM 34 61 01.