As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INITIAL CLIMB-OUT, BOTH STAB TRIM CH'S KICKED OFFLINE, FOLLOWED IMMEDIATELY BY MACH TRIM. REPLACED HORIZONTAL STAB TRIM ACTUATOR AND MOTOR CONTROL UNIT PER CRJ 200 M/M 27-42-01; 27-42-05. OPERATIONAL CHECK GOOD, PN 7062-3; SN OFF 786.