Improving nuclear safety and radiation protection


Anomaly of the EPR reactor vessel

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Time length : 02:51


In 2014 Areva declared an anomaly in the composition of steel in two components of the EPR reactor vessel: the lid and bottom of the vessel. Rémy Catteau, Director of the Nuclear Pressure Equipment Division, discusses this anomaly and the risks involved.


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28 June 2017

ASN presents its position regarding the Flamanville EPR reactor vessel anomaly

On 28th June 2017, ASN presented its position regarding the Flamanville EPR reactor pressure vessel anomaly. ASN relied on the analysis of the files transmitted by Areva NP and EDF, carried out by its nuclear pressure equipment department and its technical support organisation IRSN, and on the opinion of its Advisory Committee for nuclear pressure equipment.

07 June 2017

Flamanville EPR reactor vessel anomaly: ASN specifies the examination calendar

On 26th and 27th June 2017 ASN will convene the Advisory Committee for nuclear pressure equipment (GP ESPN) to examine the anomaly affecting the composition of the steel used in the manufacture of the vessel closure head and bottom head of the Flamanville EPR reactor.

03 November 2016

Anomalies and irregularities detected on nuclear pressure equipment

On 25th October 2016, ASN participated in the hearing organised by the OPECST (Parliamentary Office for the Evaluation of Scientific and Technological Choices) on the safety of nuclear pressure equipment (NPE).

Date of last update : 08/09/2017