As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR DISAGREE ON APPROACH RECEIVED THE NOSE DOOR AND GEAR DISAGREE WARNINGS. THE NOSE GEAR WAS NOT SHOWING DOWN AND GREEN. PER THE QRH, CYCLED THE GEAR, AND THEN PULLED THE LANDING GEAR MANUAL RELEASE HANDLE AND THE NOSE GEAR CAME DOWN AND LOCKED ALSO 3 GREEN INDICATIONS FOR THE GEAR. LANDED WITHOUT INCIDENT. (FLT#4890) REMOVED AND REPLACED NOSE GEAR SELECTOR VALVE IAW AMM. FUNCTIONAL CHECK OF EXTENSION/RETRACTION SYSTEM CHECKED GOOD.