As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
VERY WEAK AND STICKS. INSPECTED BY ACCESSORY OVERHAUL SHOP AND FOUND SWITCH NOT SET CORRECTLY FROM VENDOR. OUTPUT SHAFT MOVEMENT WAS VERY STIFF, SOME MOISTURE IN UNIT AND SOME INTERNAL CORROSION. REPAIRED ACTUATOR AND RETURNED TO SERVICE.