As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT LANDED AT GON WITH REPORTED LOSS OF RUDDER CONTROL IN FLIGHT. FURTHER INVESTIGATION REVEALED THAT NOSE LANDING GEAR STEERING HORN ASSEMBLY TUBING HAD BROKEN ALLOWING RUDDER CABLES TO SLACK. TUBING IS 3/4 INCH OD STEEL. SUSPECT TOW LIMITS WERE EXCEEDED AND CRACKED STEERING HORN DURING PREVIOUS GROUND HANDLING. LIMIT BOLTS WERE NOT BENT AS USUALLY FOUND WHEN TURN LIMITS HAVE BEEN EXCEEDED. ASSEMBLY RETURNED TO PIPER FOR FURTHER ANALYSIS SINCE IMPROPER HEAT TREATING MAY OF CAUSED FAILURE.