The Bell 525 was unveiled at the 2012 Heli-Expo in Dallas, Texas in February 2012. The helicopter first flew on 1 July 2015. It is designed to transport up to 19 passengers. Bell predicted certification to be completed by the end of 2017. The FAA suggested special rules in May 2016, to address the fly-by-wire concept. On July 6, 2016, the prototype crashed during a test flight near Italy, Texas, killing the two occupants. The aircraft, carrying registration N525TA, broke up in flight while traveling about 229 mph (199 kn) at an altitude of about 2,000 feet (610 m). The crash delayed certification from 2017 to 2018. The Bell 525 is designed to meet a requirement for a medium-lift helicopter. It will be constructed primarily from composites and metal and is to be the first commercial helicopter to incorporate fly-by-wire flight controls with tactile cues. The system is triple redundant, and is developed in two simulator environments. The 525 is powered by a pair of GE CT7-2F1 turboshaft engines, with a new composite five-blade main rotor system. The cost of the 525 has not yet been determined, but it is expected to be cost competitive on missions between 50 and 400 nmi, performed by helicopters such as the AgustaWestland AW139 and Sikorsky S-92.