As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAUSED ACTUATOR TO BE INOPERATIVE. INSPECTED BY ACCESSORY OVERHAUL SHOP AND FOUND POTS CAUSED ACTUATOR TO TEST OUT OF LIMITS ON TEST POINTS 9(Q) 3 & 5 (MECHANICAL CENTER OUT OF LIMITS AFTER SETTING ELECTRICAL CENTER) AND STRIP CHART INDICATED BADAREAS IN NULL POSITION.