There were problems already before. See those articles from 2016 for example: https://www.theguardian.com/environment/2016/nov/29/french-nuclear-power-worst-sit

There were problems already before. See those articles from 2016 for example: https://www.theguardian.com/environment/2016/nov/29/french-nuclear-power-worst-situation-ever-former-edf-director https://www.theguardian.com/environment/2016/nov/29/french-n... https://www.powermag.com/frances-nuclear-storm-many-power-plants-down-due-to-quality-concerns/ https://www.powermag.com/frances-nuclear-storm-many-power-pl...