As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, GEAR COULD NOT BE RETRACTED. RETURNED TO FIELD. MAINTENANCE FOUND RIGHT BODY GEAR RETRACT ACTUATOR FAILED. ACTUATOR ROD END PULLED FREE FROM PISTON HOUSING DUE TO STRIPPED THREADS WHICH WERE CORRODED. REPLACED RIGHT BODY GEAR ACTUATOR.