As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR DISAGREE MESSAGE DURING SELECTION OF GEAR UP. COMPLETED WITH QRH, MANUALLY EXTENDED GEAR. NOSE GEAR DID NOT SHOW UP AND LOCKED DURING THE GEAR DISAGREE. ALL GEAR SHOWED DOWN AND LOCKED AFTER MANUEL EXTENSION TO LANDING. RETURNED TO DEPARTURE, R & R NLG FOR GEAR DISAGREE WARNING DMIL. CLEARED ACFT FOR OK FOR SERVICE.