As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED LANDING GEAR DISAGREE CAS MESSAGE DURING GEAR EXTENSION WHILE ON APPROACH. CREW LANDED AT DESTINATION WITHOUT INCIDENT. MAINTENANCE RESET MANUAL LANDING GEAR RELEASE HANDLE, INSPECTED PROXIMITY SENSORS FOR SECURITY, INTERROGATED PSEU (PROXIMITY SENSOR ELECTRONIC UNIT) AND PERFORMED EXTENSION / RETRACTION OF LANDING GEAR USING AIRCRAFT MAINTENANCE MANUALS. NO DEFECTS NOTED. AIRCRAFT RELEASED FOR SERVICE.