As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 4740 CREW REPORTED AFTER DEPARTURE NOSE LANDING GEAR DOOR NOT CLOSING. THE LANDING GEAR INDICATION WAS NORMAL WITH 3 GREEN AND NO WARNING MESSAGES. CREW PERFORMED A FLY BY AT JFK WHICH RETURNED UNREMARKABLE. CREW DECLARED AN EMERGENCY AND LANDED SAFELY AND TAXIED TO THE GATE WITHOUT FURTHER INCIDENT. AIRCRAFT REMOVED FROM SERVICE. PERFORMED GEAR SWING IAW EMB AMM NO DEFECTS NOTED. AIRCRAFT RETURNED TO SERVICE.