As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RUDDER TRIM MOVING ON ITS OWN WITHOUT INPUT FROM COCKPIT CONTROLS, PULLED CIRCUIT BREAKER 2F2, IAW AIRCRAFT OPERATING MANUAL VOLUME 1. INDICATOR STILL SHOWS UNCOMMANDED MOVEMENT AND PLANE STILL FLYS SIDEWAYS. REMOVED AND REPLACED RUDDER TRIM ACTUATOR, IAW CRJ700 AMM 27-22-01. PERFORMED FUNCTIONAL TEST OF THE RUDDER TRIM SYSTEM. FOUND SYSTEM WORKING PROPERLY, IAW CRJ700 AMM 27-22-00. RETURNED AIRCRAFT TO SERVICE. (M)