Analysis of Ageing Related Events

This report presents a summary of the results of a review of available recent international operating experience on ageing events reported by nuclear power plants. Event reports retrieved from IAEA IRS database are characterised and used to derive insights and lessons learned. These lessons learned cover issues such as hidden deficiencies in design visible in aged components only after many years of plant operation, deficiencies in ageing and maintenance programmes, accelerated ageing or the adequacy and effectiveness of the inspection and monitoring methods. The findings of this study aim to support the licensees to improve the safe operation of nuclear power plants and the regulatory authorities to exercise their oversight role.JRC.G.10-Knowledge for Nuclear Security and Safet