As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A RUDDER BOOST TEST THE RT RUDDER PEDAL, REMAINED AT FULL DEFLECTION EVEN WITH THE ENGINES AT IDLE. BY TURNING THE SYSTEM OFF BOTH PDEALS WOULD RETURN TO CENTER. IF THE SYSTEM FAILED ON FINAL AND OR DURING TAKE OFF THE END RESULT COULD BE DEVASTATING.