What was found
AFTER TAKEOFF FROM DEN, UPON LANDING GEAR RETRACTION, NOSE GEAR DOOR ANNUNCIATOR ILLUMINATED INDICATING THE NOSE GEAR DOORS DID NOT CLOSE. CREW EXTENDED GEAR AND RETURNED TO DEN. MAINTENANCE REPLACED THE NOSE LANDING GEAR SOLENOID SEQUENCE VALVE P/N 48302-3, S/N FAH0428 WITH A NEW UNIT P/N 48302-5, S/N FAH0728. FUNCTIONAL CHECK OF GEAR CHECKS GOOD, PERFORMED OPERATIONAL CHECK FLIGHT - CHECKS GOOD. DURING THE GROUND OPERATIONAL CHECK OF THE LANDING GEAR THE NOSE WHEEL STEERING MOTOR CRACKED P/N RS1267-3, S/N 0261. NWS MOTOR WAS REPLACED.