As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED A LANDING GEAR HANDLE DISAGREE MESSAGE ALONG WITH A RIGHT GEAR UNSAFE MESSAGE UPON GEAR EXTENSION. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT THE FAULT AND FOUND THE RIGHT DOWNLOCK PROX SWITCHES BAD USING A TEST BOX. THE SWITCHES WERE BOTH REPLACED WITH NO FURTHER DEFECTS NOTED.