As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH WHEN LG SELECTED DOWN CREW DID NOT GET RT MLG SAFE (GREEN) INDICATION. MLG WAS IN FACT DOWN AND LOCKED. MX DETERMINED FAULTY DOWNLOCK SWITCH INCORPORATED INTO MLG ACTUATOR. THE MLG ACTUATOR WAS R&R AND GEAR SWINGS ACCOMPLISHED WITH SATISFATORY RESULTS.