As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE LANDING GEAR HANDLE WOULD NOT MOVE TO THE RETRACT POSITION AFTER TAKEOFF. RETURNED TO DEPARTURE WITH 3 GREEN SAFE LIGHTS. FOUND CONNECTOR JG019 FOR THE NLG SQUAT SWITCH WIRE HARNESS PULLED APART. PIN LOCK ON THE CONNECTOR BROKEN. NO DAMAGE TO WIRES OR PINS. REMOVED AND REPLACED THE CONNECTOR TG019 WITH NEW IAW WDM 20-10-04. PERFORMED SUCESSFUL GEAR SWING IAW AMM 32-30-00.