Parts of some steam generators at 18 nuclear power units in France may have similar anomalies discovered in the steel of the pressure vessel of the Flamanville EPR, utility EDF has informed the French nuclear regulator. The upper and bottom heads of the reactor pressure vessel for the EPR under construction as Flamanville 3 were manufactured at Areva’s Le Creusot facility in September 2006 and January 2007, respectively. A high carbon content in those parts prompted Areva to review the company’s quality management process in 2015. The French regulator, the Autorité de Sûreté Nucléaire (ASN), requested Areva and EDF conduct an analysis to identify any other components in operating nuclear power reactors that could be affected by a similar anomaly to that of the Flamanville EPR vessel.
World Nuclear News 24th June 2016 read more »