Thank you for the responses. We are planning on exchanging all blades but of course there is a lead time of multiple weeks and on top of that the repair time. We expect the blades will last long enough to exchange all blades, but we would like to known the impact if one would fail. Risk= likelihood x consequence.
@powerplantdocs, thank you for the response about the vibration this is very helpful.
I understand the other blades will get damaged if one would fail, is there any experience with a blade damaging the structure or the condensor tubes?