As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB, THE GEAR HANDLE WAS SELECTED UP & THE LT GEAR INDICATION REMAINED ILLUMINATED. SELECTED THE GEAR HANDLE DOWN & ALL THREE LG INDICATIONS WERE GREEN. DECLARED AN EMERGENCY, PERFORMED A FLY BY THE TOWER TO CONFIRM LG WAS DOWN & DIVERTED BACK. LANDING WAS UNEVENTFUL. LT MLG ACTUATOR WAS REPLACED DUE TO FAULTY DOWN LOCK SWITCH. GEAR SWINGS & SYS OPS CHECKED WITH NO DEFECTS NOTED. ACFT WAS RETURNED TO SERVICE.