Lufthansa (LH, Frankfurt International) has signed a Letter of Interest for 30 aircraft (and 30 options) to become the launch customer of the new Bombardier CSeries aircraft program, it has not made a decision on the split between the 110- and 130-seat version of the aircraft yet. Deliveries will start in 2013. It will transfer two A330-200s back from Swiss (LX/Zurich) to Lufthansa that it plans to replace later with two new A330-300 it has ordered. I has announced plans to transfer some new A320-200s on order to Swiss instead and to retire its B737-500 fleet by 2009 and its remaining B737-300s by 2012. Lufthansa has launched six times weekly service between Stuttgart and Warsaw on June 2 using Lufthansa CityLine (CL/Cologne/Bonn) CRJ-200s but will give up its Stuttgart-London City route on July 25. In other news, Lufthansa and bmi british midland (BD/Nottingham) have reportedly shown interest in taking a stake in Star Alliance partner South African Airways (SA/Johannesburg).