As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER DUAL FLIGHT CONTROL INSTALLATION PERFORMED FUNCTIONAL CHECK OF TAIL ROTOR CONTROLS FOR SMOOTHNESS OF OPERATION. NOTICED SOME BINDING WITH A SCRAPING SOUND. INVESTIGATED AND DETERMINED FORWARD BALL TYPE CONTROL CABLE WAS CHAFING AT FORWARD END WHERE ROD EXITS THE SHEATH. WILL REPLACE CONTROL CABLE WITH A NEW ONE.