As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING TESTING THE ACTUATOR SHOWED HIGH INTERNAL LEAKAGE. AFTER INVESTIGATION IT WAS DISCOVERED THAT THE HOUSING WAS CRACKED INTERNALLY. THE CRACK IS IN THE SERVO VALVE AXIS OF THE HOUSING AND APPEARS TO ORIGINATE FROM A DRILLED PASSAGE. THIS ASSEMBLY RECEIVED FROM AN AIRCRAFT IN THE USA.