As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOI- FLIGHT 2422 - DEPARTING BOI SELECTED GEAR UP, BUT GEAR REMAINED DOWN. HANDLE WAS ILLUMINATED AND GREEN LIGHTS AND RED UNSAFE LIGHTS STAYED ON. MOVED HANDLE TO DOWN POSITION AND LIGHT WENT OUT. RETURNED TO THE FIELD AND ACCOMPLISHED A UNEVENTFUL LANDING. MAINTENANCE REPLACED THE WOW 2 CENTERING HARNESS. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.