The last time I reported on the Vineyard Farms offshore blade failure near Nantucket, the facility was closed because of the failure of Vineyard Wind’s newly installed wind turbines, and the city was poised to sue.

After all, the beaches were cluttered with sharp fiberglass shards, which is a sub-optimum condition at the height of the summer tourist season.

Continuing investigation into the cause of this environmental contamination incident has determined that a manufacturing flaw in the blade was responsible for the failure.

Keep in mind that Vineyard Wind is the first major U.S. offshore wind farm. Many of the blades that went into its construction will now have to be inspected and perhaps repaired.