As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE APPROACH TO LAND, LDG GEAR HANDEL FAILED FOLLOWED BY 3 UNLOCK LIGHTS ON BOTH SYSTEMS; LDG GEAR GRAVITY EXTENSION HAS BEEN USED FOR LANDING. PROBLEM WAS FOUND TO BE A FAILURE OF THE LANDING GEAR SELECTOR VALVE. A SERVICABLE VALVE WAS INSTALLED AND AIRCRAFT WAS RETURED TO SERVICE.