As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AC PULLS RT WITH NEUTRAL TILLER POSITION. NWS DISENGAGES WHEN ATTEMPTING FULL RT TURN. REMOVED AND REPLACED NOSEWHEEL STEERING CONTROL VALVE. AND ADJUSTED FEEDBACK MANIFOLD POTENTIOMETERS 1 AND 2 IAW GAC G200 AMM 32-50-00 AND 32-50-15.