As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED THAT DURING LANDING APPROACH, A LANDING GEAR DISAGREE MESSAGE APPEARED ON THE EICAS AND THAT THE FREE FALL LEVER WAS USED TO EXTEND THE LANDING GEAR. MAINTENANCE ADJUSTED THE NLG PROXIMITY SWITCH BRACKET FOR THE DOWNLOCK AND PERFORMED SEVERAL OPERATIONAL CHECKS OF THE LANDING GEAR EXTENSION AND RETRACTION SYSTEM WITH NO DEFECTS NOTED.