AW609 control laws partly responsible for the fatal crash of the 2nd prototype

AW609 control laws initiated 'Dutch roll': investigators
http://www.flightglobal.com/news/articles/aw609-control-laws-initiated-dutch-roll-investiga-426696/

Italian investigators believe that flight control laws governing the AgustaWestland AW609 were partly responsible for the fatal crash of the programme s second flight-test prototype (N609AG) after they initiated an augmented Dutch roll .