What was found
EXPERIENCED THE RUDDER OSCILLATIONS IN FLIGHT, WITH THE RUDDER RANDOMLY SWINGING TO ONE SIDE. IT SEEMED AS IF THE RUDDER IS LOOSE, WHERE YOU COULD FEEL IT HIT A STOP. (FLIGHT 5832 - FILED CLOSED)PLEASE REFERENCE AML 1712505 PLEASE REFERENCE AML 1712677. REMOVED AND REPLACED OF YAW-DAMPER LINEAR ACTUATOR 1&2 PER CRJ200 AMM 22-22-01, FCC 1&2 CRJ200 AMM 22-12-14, AHRS COMPUTER 1&2 CRJ200 AMM 34-21-01. ALL ITEMS OP CHECK GOOD. PERFORMED CAT II RETURN TO SERVICE TEST, OP CHECK GOOD. UPGRADED TO CAT II AND RVSM.