What was found
AFTER DEPARTURE FROM MCO DURING CLIMBOUT DESTINED FOR TOL AIRCRAFT EXPERIENCED YAW ABNOMALY. CREW ELECTED TO RETURN TO MCO. AFTER UNEVENTFUL LANDING IN MCO MAINTINANCE INSPECTED SYSTEM AND TRANSFERRED THE YAW DAMPNER TO MEL. ALL WORK COMPLETED PER APPLICABLE MANUALS AND AIRCRAFT RETURNED TO SERVICE WITH YAW DAMP SYSTEM DEFERRED. FURTHER TROUBLESHOOTING ON 2/12/2003 IN IAH REVEALED YAW DAMPNER COMPUTER FAULTY. THIS COMPONENT WAS REPLACED AND SYSTEM OPERATIONALLY CHECKED NORMAL. IAH MAINTENANCE COMPLETED ALL TASKS PER APPLICABLE MANUALS, CLEARED MEL ITEM AND RETURNED AIRCRAFT TO SERVICE.