As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX-ON FLIGHT 2289, IDA-SEA FLIGHT DIVERTED TO PDX DUE TO PITCH TRIM CAUTION INFLIGHT. PITCH TRIM INOPERATIVE. TRIM INDICATION SHOWING FULL NU POSITION. OCCURRED AT FL 240 AT 240 KIAS; AUTO PILOT DISENGAGED WITH AUTO TRIM FAIL MESSAGE ON PFD. REMOVED AND REPLACED PITCH TRIM ACTUATOR. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.