As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED GEAR DISAGREE WARNING MESSAGE WITHIN 6 SECONDS OF GEAR EXTENSION. CREW DECLARED AN EMERGENCY AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT, R & R LANDING GEAR SELECTOR HANDLE AND PERFORMED CHECKS IAW AMM. ACFT RELEASED FOR SERVICE.