As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR DKYC9318, AFTER TAKEOFF FROM KMIA THE NOSE LANDING GEAR P/N 65163424 WOULD NOT RETRACT. CYCLED GEAR SEVERAL TIMES, NO HELP. AIRCRAFT RETURNED TO KMIA AND LANDED WITHOUT FURTHER INCIDENT. INSPECTED NOSE LANDING GEAR, NO DEFECTS NOTED. LUBRICATED NOSE GEAR. JACKED AIRCRAFT AND CYCLED GEAR NUMEROUS TIMES PER MM 32-33-0. OPERATIONALLY CHECKS OK. AIRCRAFT RETURNED TO SERVICE. (M)