As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON GO-AROUND MANEUVER, LANDING GEAR WOULD NOT RETRACT. GOT A (LANDING GEAR NOT UPLOCKED) ECAM FOLLOWED BY L/G DOOR NOT CLOSED ECAM - WE PUT L/G HANDLE BACK DOWN - GEAR ALREADY DOWN". AIRCRAFT FLEW BACK TO JFK UNDER MEL 32-31-00 WITHOUT PASSENGER. L/D DOOR SELECTOR VALVE WAS REPLACED BUT DID NOT CORRECT THE PROBLEM. THE PROBLEM WAS CORRECTED UPON REPLACING THE L/G SELECTOR VALVE.