As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED A GEAR DISAGREE WARNING MESSAGE AFTER SELECTING THE GEAR DOWN. NOSE GEAR WOULD NOT COME DOWN. ALSO RECEIVED A NOSE DOOR OPEN, WARNING MESSAGE. CREW COMPLIED WITH AN EMERGENCY GEAR EXTENSION & ALL GEAR CAME DOWN & LOCKED. REMOVED AND REPLACED THE NLG PRIORITY VALVE, OPS AND LEAK CHECKED GOOD.