As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF MIAMI AND GEAR RETRACTION, EXPERIENCED VIBRATION IN NOSE GEAR AREA. RETURNED TO MIA. MADE LANDING WITHOUT INCIDENT. INSPECTION REVEALED LEFT NOSE LANDING GEAR DOOR OPEN AND FORWARD DOOR LINK STRUT WOULD NOT LOCK DOOR IN UP POSITION. REPLACED LINK AND RETURNED AIRCRAFT TO SERVICE.