As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA FLIGHT 2341: YAW DAMPER NOT CENTERED MESSAGE. RETURNED TO GATE. MAINTENANCE REMOVED AND REPLACED YAW DAMPER ACTUATOR IAW Q400 AMM TASK 22-11-36-000-801 AND 22-11-36-400-801. OPS TEST GOOD. NO DEFECTS NOTED. AIRCRAFT RETURNED TO SERVICE.