What was found
PRIMARY STAB TRIM FAILED CLIMBING THROUGH 6,000 FEET. PERFORMED CHECKLIST AND RETURNED FOR LANDING. REPLACED THE MOTOR CONTROL UNIT.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PRIMARY STAB TRIM FAILED CLIMBING THROUGH 6,000 FEET. PERFORMED CHECKLIST AND RETURNED FOR LANDING. REPLACED THE MOTOR CONTROL UNIT.