What was found
DURING GEAR RETRACTION ON TAKEOFF RECEIVED GEAR DISAGREE WARNING WITH NOSE GEAR INDICATING DOWN & BOTH MAINS UP. COMPLIED WITH QRH ALL 3 LANDING GEAR SHOWED DOWN. APPROX WT AT LANDING 47200. NOSE GEAR & NOSE DOOR MSGS. IN ADDITION, THE GEAR LEVER WAS LEFT IN THE UP POSITION & THE MANUAL RELEASE WAS PULLED IAW THE QRH. WERE IN SNOW BUT NOT SEVERE ICING, NO TURBULENCE OR SEVERE CONTROL MOVEMENTS. THE HYD Q, P & T WERE NORMAL IN ALL SYSTEMS. THE PUMPS WERE IN AUTO TILL TURNED TO ON IAW THE QRH, EMERGENCY LANDING WAS NOT DECLARED.