What was found
F/O MCDU, CONTROL DISPLAY UNIT, BUTTON 6L COMING OFF. ACFT GROUNDED. REPLACED F/O MCDU KEYPAD. INSTALLATION TEST PASSES. REF AMM 34-61-01-400-801.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
F/O MCDU, CONTROL DISPLAY UNIT, BUTTON 6L COMING OFF. ACFT GROUNDED. REPLACED F/O MCDU KEYPAD. INSTALLATION TEST PASSES. REF AMM 34-61-01-400-801.