GE VERNOVA reported a “blade failure” Thursday night on one of its installed Haliade-X turbines at a wind farm off the coast of England, raising new concerns about a turbine that has already experienced breakdowns twice before, one of them in July at Vineyard Wind off the coast of Massachusetts.

Cambridge-based GE Vernova told the Nantucket Select Board that a turbine at the Dogger Bank wind farm “experienced an isolated blade event that occurred during commissioning.” The company said it is investigating what happened.

The Haliade-X turbine is a new design. At 13 megawatts, it’s one of the largest in the world. The first incident at Dogger Bank – the crumpling of a blade — occurred in May. The company said it was an “isolated event” caused by improper installation.

The second blade failure occurred in mid-July at the Vineyard Wind wind farm. The blade broke and spewed foam and fiberglass into the ocean, with the materials washing up ashore on Nantucket, Martha’s Vineyard, and Cape Cod. A preliminary investigation indicated the blade failed because bonding materials used on the blade were applied improperly. Vineyard Wind has continued construction, but is barred from installing more turbine blades and generating power.

It’s too soon to know what caused the latest blade failure, but it comes at a bad time with Vineyard Wind attempting to become the first utility-scale wind farm in the United States. The blade incidents have cast a shadow on the project and the industry.