As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR FAILED TO RETRACT, GEAR HANDLE RAISED TO OFF POSITION AND WOULD NOT MOVE FURTHER. GEAR LIGHT AND GEAR DISAGREE MSG ILLUMINATED. FOLLWED POM PROCEDURE. RETURNED TO JFK. ON LANDING AIRCRAFT PULLED TO RIGHT. FOUND NR 3 BRAKE DRAGING REPLACED SAME. HAD FAULT CODES 421/422/423/424 ON PSEU. REPLACING LANDING GEAR CONTROL MODULE PER FIM PRIOR TO MTC, FERRY TO ATL.