What was found
ON TAKEOFF RECEIVED NOSE DOOR OPEN AND GEAR DISAGREE WARNING MSG C/W QRH RETURNED TO LAND WITH GEAR DOWN AND THREE GREEN. CW M ACTION IN PREPARATION FOR MEL 32-30-01 REF 347921-2 FOR MEL PER FIM PER FIM32-60-08 NOSE DOOR OPEN INDICATION IS NORMAL CODE S23 FAR PRESENT. RIGGED THE NLG OLEO CENTERED/EXTENDED (PS14GA) PROX SENSOR IAW AMM 32-61-05, OPS CHECK GOOD. REMOVED PLACARD AND MEL.