As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FLIGHT CREW REPORTED THAT THE STABILIZER WOULD NOT FUNCTION DURING THE DESCENT FOR LANDING. THE LANDING WAS UNEVENTFUL. THE MAINTENANCE VENDOR DETERMINED THAT THE AIRSPEED SWITCH PN D45C-24 WAS FAULTY. A NEW AIRSPEED SWITCH WAS INSTALLED. OPERATIONS CHECKS WERE SATISFACTORY. THE AIRCRAFT WAS RETURNED TO SERVICE.