As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) UNABLE TO SELECT GEAR UP. RECEIVED THREE GREEN INDICATION LIGHTS ALONG WITH THREE RED INDICATION LIGHTS AND AMBER GEAR HANDLE LIGHT. PERFORMED RETURN TO LANDING CHECKLIST. NORMAL LANDING PERFORMED. NLG CENTERING PROXIMITY SENSOR FOUND SHORTED. SENSOR REPLACED AND ADJUSTED TO 8.602 MH IAW AMM 32-61-03.