As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT RUDDER BOOST SYSTEM DID NOT TEST PROPERLY WHEN THE RIGHT ENGINE WAS BROUGHT UP TO POWER. FOUND THE RIGHT RUDDER BOOST SERVO BELLOWS WAS HANGING UP IN THE SERVO. WOULD NOT RETRACT ALL THE WAY. REPLACED THE SERVO AND SYSTEM OPERATED NORMALLY.