As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION OF CONTROL HORN FOUND IT 'NOTCHED'. HARD RT RUDDER APPLICATION REPEATEDLY HIT VERTICAL ASSEMBLY CAUSING IMPACT DAMAGE. SOME ONE FAILED TO 'FIX' DAMAGE. NOTCH CAUSED INTERFERENCE OF CONTROL MOVEMENT. OWNER ADVISED TO GROUND AIRCRAFT UNTIL REPAIRED. NOTE: PART PAINTED, SO DAMAGE NOT SHOWN UNTIL CONTROL SCRAPED.