What was found
AFTER TAKEOFF, CREW RECEIVED A GEAR DISAGREE, NOSE GEAR DID NOT RETRACT, C/W QRH, RETURNED TO THE FIELD AND LANDED WITHOUT INCIDENT. R & R LANDING GEAR CONTROL HANDLE ASSY IAW AMM. C/W GEAR EXTENSION, RETRACT CYCLES AND EMERGENCY EXTENSION IAW AMM OPS CHECK GOOD. PN ON 7-45502-T, SN ON 1162, PN OFF 7-45502-5, SN OFF 1469.