As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN CRUISE FLIGHT, THE RED “GEAR UNSAFE” LIGHT IN THE HANDLE BEGAN FLICKERING ON AND THEN REMAINED ILLUMINATED. CREW FOLLOWED CHECKLIST, DIVERTED TO KDAL. LANDING WAS UNEVENTFUL. MAINTENANCE ADJUSTED THE LEFT MAIN LANDING GEAR UP POSITION SWITCH. GEAR SWINGS PERFORMED WITH NO DEFECTS NOTED. A SUCCESSFUL OPERATIONAL CHECK FLIGHT WAS PERFORMED WITH NO DEFECTS NOTED. AIRCRAFT WAS RETURNED TO SERVICE.