This is a Notable Operational milestone.
First flight of prototye P1 took place at Mollis Airport, Switzerland piloted by Chief Test Pilot Dwayne Williams.
The first flight of the second prototype (P2) took place on February 26, 2016. This aircraft had a modified bearingless rotorhead and new rotor blades.
Source: “Evolution of a Swiss Masterpiece”, Ian Frain, VERTIFLITE March/April 2018, Page 34 and Marenco press release