As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PREFLIGHT, DISCOVERED THE SECONDARY TRIM OPERATED BACKWARDS. THE OVERHAULED ACTUATOR WAS INSTALLED 5 HOURS PREVIOUSLY. SUBMITTER STATED REVIEW OVERHAUL, FUNCTIONAL TEST AND QUALITY CONTROL PROCEDURES AT ELECTROMECH TECHNOLOGIES. FOLLOW MM PROCEDURES AFTER INSTALLATION.