There is a brief Telex Info on the subject out from Eurocopter today. A very worrying picture is attached, showing a crack you could place you finger in, if you wished.
This reminds me of the fatal S61N accident on the Norwegian side in 1978.
The detached blade was recovered from the sea floor, and it was found that a crack had opened in the spindle lug. But those guys were enroute ....