As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF WHILE TRIMMING, STAB TRIM AND MACH TRIM MESSAGES ILLUMINATED. RETURNED TO LAND, AS MESSAGES REAPPEARED AND TRIMS INOPERATIVE.REMOVED AND REPLACED HORIZONTAL STAB TRIM ACTUATOR AND MOTOR CONTROL UNIT AS PER RII27-415, MM 27-42-01 AND 27-42-05. OPS. CHECKS GOOD.