As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTS RUDDER BOOST TEST HAS OPPOSITE RUDDER MOVEMENT WHEN TEST IS PERFORMED. LT THROTTLE HAS RT RUDDER MOVEMENT. RT THROTTLE HAS LT RUDDER MOVEMENT. TROUBLE SHOT THE DISCREPANCY & FOUND A DEFECTIVE LT ENG RUDDER BOOST TRANSDUCER. ENG TRANSDUCER WAS REPLACED, RUDDER BOOST OPERATIONAL CHECKED GOOD. ACFT WAS RETURNED TO SERVICE.