As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JFK - INFLIGHT T833/02 ON TAKEOFF NOSE GEAR DOOR SHOWED UNLOCKED ON BOTH SYSTEM NUMBER ONE AND TWO. ECAM MESSAGE NOSE GEAR DOOR UNSAFE. NO NOISE NOTED UNTIL GEAR HANDLE RETURNED TO NEUTRAL. RETURNED TO JFK AND LANDED WITHOUT INCIDENT. REPLACED FAULTY RIGHT HAND NOSE GEAR DOOR UPLOCK. SYSTEM GROUND CHECKED NORMAL OPERATION.