What was found
RUN AWAY TRIM - PRIMARY LONGITUDINAL AXIS 15 MIN FROM BOS. AUTOPILOT WAS ENGAGED. REMOVED AND REPLACED PRIMARY LONGITUDINAL TRIM ACTUATOR MOTOR, AND PRIMARY LONGITUDINAL TRIM CONTACTOR RELAY IAW DC9 MM 27-40, 27-40-04.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
RUN AWAY TRIM - PRIMARY LONGITUDINAL AXIS 15 MIN FROM BOS. AUTOPILOT WAS ENGAGED. REMOVED AND REPLACED PRIMARY LONGITUDINAL TRIM ACTUATOR MOTOR, AND PRIMARY LONGITUDINAL TRIM CONTACTOR RELAY IAW DC9 MM 27-40, 27-40-04.