As per french Aeronautic Federation, DR400 and DR401 represent more than 50% of clubs’ fleet and around 75% of flight hours (France).
Flying clubs mostly repair and maintain their aircrafts in their own workshop. This freedom however requires more and more personnel to be hired.
That is the reason why a growing number of independant maintenance centers are being able and authorized to maintain the DR400/DR401 in a controled organization and space.
Here is the list and intel about main Professional maintenance workshops being authorized by authorities and by Robin aircraft.