was first run on 21 February 2008. Tests were conducted by the Gromov Flight Research Institute, using an Ilyushin Il-76LL as a flying test bed. The SuperJet 100 made its maiden flight on 19 May 2008, taking off from Komsomolsk-on-Amur. By July, certification was expected for the third quarter of 2009, pushing back deliveries to later the same quarter. On 24 December 2008, the second SSJ made its maiden flight. By January 2009, the first two aircraft had completed over 80 flights, and the engines had accumulated 2,300 hours of tests. In April 2009, the two prototypes were flown from Novosibirsk to Moscow, and EASA pilots conducted a number of familiarisation flights. A third prototype joined the test campaign in July 2009. The SSJ made its international debut at the 2009 Paris Air Show; during the show, Malév Hungarian Airlines placed a $1 billion order for 30 aircraft. As of June 2009, 13 aircraft were under construction, with the first four scheduled to be handed over to clients from December. Armenian Armavia was to receive the first two, followed by Aeroflot, having ordered 30 with an option for 15 more. Other customers include Russian Avialeasing, Swiss AMA Asset Management Advisor, and Indonesian Kartika Airlines. Sukhoi expected production to reach a rate of 70 aircraft per year by 2012. In December 2009, engine availability issues resulted in deliveries being delayed indefinitely. On 4 February 2010, the fourth prototype made its maiden flight using engines removed from the first prototype, as a result of continuing delays in engine production, including NPO Saturn quality problems. On 15 September 2010, static tests for certification of the aircraft were completed by TsAGI. Certification By June 2010, certification was 90% complete but was delayed due to SaM146 engine problems that were not encountered during testing. In September 2010, certification was expected for November. In October 2010, noise was tested for certification authorities, Russian IAC and European EASA. On 4 November 2010, the first production aircraft, intended for Armavia, was first flown. By November 2010, the SSJ test fleet had made 948 flights totalling 2,245 hours. On 3 February 2011, IAC granted a Type Certificate. EASA's Type Certificate followed on 3 February 2012, allowing operations in European countries. On 14 March 2022, EASA revoked the Superjet's airworthiness certificate as part of the EU's sanctions against Russia following the Russian invasion of Ukraine. In service developments In summer