As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF AFTER GEAR RETRACTION, NOSE WHEEL GEAR UNSAFE LIGHT REMAINED ON. PERFORMED COCKPIT OPERATING MANUAL PROCEDURE. FLIGHT RETURNED TO MIA. ALL INDICATIONS WERE NORMAL FOR GEAR DOWN. FLIGHT LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED NOSE GEAR RETRACT CYLINDER, OPERATIONAL CHECK OK.