As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE WEIGHTED SEATS HAVE A HANDLE WELDED ON THE LEFT REAR CORNER. WITH THE SEAT BELT FASTENED IT IS POSSIBLE TO LIMIT FULL LEFT RUDDER TRAVEL DUE TO THE RUDDER PEDAL JAMMING THE SEAT BELT ATTACH TAB BETWEEN THE PEDAL AND THE HANDLE. IT ONLY HAPPENS WITH THE OPTIONAL WEIGHTED SEAT IN THE FRONT INSTALLED.