What was found
UPON PUTTING GEAR UP GOT GEAR DISAGREE W/ MAINS UP AND NOSE GEAR DOWN. NOSE DOOR OPEN RED AMBER WOW INPUT, NWS INOP. RAN QRH GOT NOSE AND GEAR TO AGREE, ALSO GOT NWS BACK. RETURNED TO ATL. FLT 4971 DEL 62 MINS. AIRCRAFT RETURNED TO ATL AFTER T/O, EMERGENCY DECLARED, EQUIPMENT WAITING.