As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STAB CH 1 INOP STATUS MESSAGE. WILL NOT ENGAGE. REMOVED AND REPLACED HORIZONTAL STABILIZER MOTOR CONTROL UNIT AND TRIM ACTUATOR IAW CRJ MM 27-42-01, 27-42-05. PERFORMED OPS CHECK OF HORIZONTAL STAB TRIM SYSTEM IAW CRJ MM 27-40-00 AND 27-41-00. OPS CHECK GOOD.