As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SPEED TRIM FAIL LIGHT ILLUMINATED AND YAW DAMPER WON'T ENGAGE DURING TAKEOFF. MADE UNEVENTFUL RETURN TO DEPARTURE AIRPORT. PERFORMED YAW DAMPER SYS TEST IAW AMM 22-23-00, NO DEFECTS NOTED. PERFORMED DFCS BITE PROCEDURE AND DFCS ADJUSTMENT/TEST IAW AMM 22-11-00 AND PERFORMED SPEED TRIM SYSTEM TEST IAW AMM 22-00-00, NO DEFECTS NOTED.