What was found
F/O MCDU R6 BUTTON INOPERATIVE. ACFT GROUNDED. REF AMM 34-61-01, REMOVED AND INSTALLED NEW KEYBOARD. PERFORMED SYS TEST REF AMM 34-61-01-400-801. STEP D ALL TESTS PASSED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
F/O MCDU R6 BUTTON INOPERATIVE. ACFT GROUNDED. REF AMM 34-61-01, REMOVED AND INSTALLED NEW KEYBOARD. PERFORMED SYS TEST REF AMM 34-61-01-400-801. STEP D ALL TESTS PASSED.