On 11 March 2009, the Lufthansa Group board announced that it planned to gradually replace the current Avro RJ100 fleet flown by Swiss Global with aircraft of the Bombardier CSeries from 2014. The replacement of the twenty RJ100s was planned to take two years, while an additional ten aircraft would be delivered thereafter to allow for capacity expansion. The new aircraft would allow Swiss to continue serving restricted destinations such as London City Airport or Florence Perétola Airport. With the delays to the Bombardier CSeries' development this date was postponed to 2015. It was further postponed, with the first delivery, of a CS100, taking place in June 2016 with the first revenue flight on 15 July. The Lufthansa Group is a launch customer for this aircraft type, and had previously signed a letter of intent for up to 60 aircraft.