As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW EXECUTED AND AN EMERGENCY CHECKLIST DUE TO ONLY THE MLG EXTENDING ON APPROACH TO LANDING. THE TOWER CONFIRMED ON THE MLG EXTENDED. AFTER RUNNING THE EMERGENCY CHECKLIST, CREW WAS ABLE TO EXTEND THE NLG. AIRCRAFT LANDED WITHOUT INCIDENT. REPLACED NLG UPLOCK BOX. OPS AND LEAK CHECK GOOD.