Howdy 72865, welcome to Pprune.
As an Instructor ( not the operator) I fly Diamonds for a living, every day, all day (long days..
)
I was equally surprised by the double failure as many people are.
Good thing is that the source of the problem seems to be identified with (I'm sure) a fix on the way. It's not exactly a new airplane anymore with thousands of hours flown in Europe, Asia (China) and now the US.
It's not unusual for problems to surface after some time, you can check the AD list on any popular piston single/twin.
I am just somewhat cynical and sarcastic about blaming the tool and not the operator. They clearly went against the POH in this case.
That can get you into trouble in any airplane, not only the DA-42.
At the risk of sounding arrogant, it is my job to teach people how to operate this piece of machinery, it's not always that easy to convince people of doing it the right way.
However, you will receive outstanding ground school and flight instruction upon delivery of your airplane. I was trained by the Diamond Factory pilots in Canada.
I do hope it does not reflect the attitude of his principles
I hope that also...
