As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JFK - EN ROUTE JFK-MIA, LEFT MAIN LANDING GEAR COMES DOWN WHEN GEAR HANDLE IS PLACED IN OFF POSITION. RETURNED TO JFK LANDED WITHOUT INCIDENT. REPLACED LEFT MAIN GEAR DOOR LATCH AND GEAR OPERATED SEQUENCE VALVE. PERFORMED OPS AND LEAK CHECK PER MM REF. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)