 Considerable differences and improvements were introduced to the cockpit and aircraft subsystems, including the adoption of increasingly digital avionics and a fully modular approach to these systems; amongst the biggest changes is a sophisticated 4-axis autopilot.In April 2014, airworthiness certification from the European Aviation Safety Agency for the EC145 T2 was received, FAA certification followed in October 2014.The primary manufacturing facility for the EC145 is located at Donauwörth in Germany, which is Eurocopter's second-largest site after Marignane in France.