The Working Group on Operating Experience (WGOE) has observed that events with heavy loads are a contemporary issue to address after several operating experiences in recent years. The WGOE made a proposal to analyse events as well as to determine the regulatory approach to licensee management of the lifting of heavy loads in nuclear power plants within NEA countries. Specifically:
To collect and review operating experience from events involving the lifting of heavy loads.
To compare regulatory requirements for nuclear lifting systems.
To identify lessons learnt for sharing knowledge among regulatory bodies (RB).
To achieve a good result and be able to analyse the subject, each member country was asked to respond to a questionnaire (see Annex 1) and to search their national databases. Eleven countries responded to the questionnaire and 114 events from 16 countries have been analysed.