As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE THREADS IN THE ACTUATOR NUT ARE WORN AND ALLOWING THE NUT TO MOVE ON THE JACK SCREW AND BECOME JAMMED WHEN IT CONTACTS THE STOP ON EITHER END OF TRAVEL NOSE UP OR NOSE DOWN. PART LOCATION IS BETWEEN THE PILOT AND COPILOT SEATS UNDER THE FLOOR PANEL.