As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR RETURN FLIGHT 5132, NLG DOOR OPEN MESSAGE ON AFTER GEAR RETRACTION ON TAKEOFF. AIRCRAFT RETURNED TO GATE, MAINTENANCE FOUND DOOR CONTROL SWITCH IN OPEN POSITION. INSPECTED AND OPERATED DOOR SEVERAL TIMES USING SWITCH, OPS CHECK GOOD. NO DEFECTS NOTED IAW AMM 32-20-00.