on 16 september 2013, the cs100 made its maiden flight from mirabel airport. over 14,000 data points were gathered on this first flight; and after some reconfigurations and software upgrades, the aircraft flew for the second time on 1 october 2013. on 16 january 2014, the planned entry-into-service date was delayed again (by at least 12 months, into the second half of 2015), due to difficulties with certification flight testing. the cs300 was still scheduled to follow approximately six months after the cs100.