So yesterday while hovering my Roban EC130 the fenestron pitch lever screw...

You dodged a big one there! Is that part plastic?

All metal parts.

That is bizarre. Can you post a picture of the screw that broke? Likely the best solution is to determine a) why the screw was stressed and b) whether a non-Roban replacement will solve the issue. There shouldn’t be that much stress on that part.

If you look at the pic I posted it on the table. It snapped at the nut. I thought it was strange as well. I will keep an eye on it for a while.

1) No stress is expected so needs to be confirmed, was it the case Richard?
2) Metal can be made from different alloys and different manufacturing batches. Roban or its supplier might have also improved the same along production so experience can vary.
3) I would try to see if there is any crack where it broke, as well cut and bind the remaining part to know more about the material. It's puzzling as even a soft alloy should have resisted until some load: close-up welcome as Michael said !

I replaced the screw, as soon as the wind stops blowing I will take it out .

Thanks for the replies.

Thanks for the replies, next step is getting the tail stable, I use vbar.

Can you make a clear picture of the snapped place ?

Yes that happened to mine while testing it on the bench in the test bed stage ( thank God it was not in the air ) this was with my ball link I replaced it with a align ball link, I don’t trust the ones that come with the kit.

I no longer have the screw, but it is the screw with the ball for the tail control rod.

Thanks for that info David.