As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MIA - CREW REPORTED AFTER GEAR RETRACTED NOSE LANDING GEAR AMBER LIGHT ILLUMINATED. EMERGENCY DECLARED, RETURNED MIA WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED LEFT NOSE GEAR DOOR ACTUATOR AND BYPASS SEQUENCE VALVE. SYSTEM GROUND CHECK NORMAL OPERATION.