As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PART FAILED WHERE THE ARM IS WELDED TO THE CROSS BAR ASSEMBLY CAUSING COMPLETE LEFT RUDDER DEFLECTION FAILURE. SUBMITTER SUGGESTED IMMEDIATE INSPECTION OF THIS PART FOR CRACKS. THIS AIRCRAFT IS USED FOR FLIGHT TRAINING AND IS CONSISTENTLY USED FOR SINGLE ENGINE OPERATIONS THAT CAUSE EXTRA STRESS ON THIS PART. PART FAILED DURING GROUND OPERATIONS.