 In September 2014, Metro reported that it was about one month away from finishing tests on the 7000-series test train, and it stated that it expected an eight-car train made up of 7000-series cars would start carrying passengers in early 2015, and Metro would have 56 railcars by June 2015.During that time, Metro revealed that during testing, a software issue was discovered that it was still addressing, although Metro was confident that the hardware itself was solid.Metro had indicated that the mass production schedule called for 56 new cars to be delivered by June 2015.