As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR DISAGREE WARNING MESSAGE IN CRUISE. GEAR INDICATIONS SHOWED THE NOSE GEAR IN TRANSIT. MESSAGE CLEARED WITHIN 2 SECONDS, AND NOSE GEAR SHOWED UP. (FLT 5789) CLOSED FOUND ALOT OF DEBRIS COVERING DWN LCK PROX SENSOR NR 1, CLEANED PROX SENSOR, DISCONNECTED CANNON PLUG AND CLEANED BOTH SIDES OF CONNECTION. PERFORMED MULTIPLE OPS CHECK OF MLG EXTENSION/RETRACTION IAW AMM WITH NO FAULT FOUND. A/C OK FOR SERVICE.