As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ELEVATOR TRIM FROZE IN FLIGHT AND BROKE LOOSE SUDDENLY, CAUSING VIOLENT PITCH DOWN. REMOVED AND REPLACED RIGHT AND LEFT ELEVATOR TRIM TAB LINEAR ACTUATORS IAW EMB 120 MM 27-32-02 AND 27-00-01. LEFT TRIM ACTUATOR S/N OFF: 735, S/N ON: UNKNOWN. RIGHT TRIM ACTUATOR S/N OFF: 736, S/N ON: 426.