Regulatory evaluation of an event report - Regulatory post-event inspections

Reporting unusual events at nuclear installations has been recognized an important factor of safe and reliable operation of the installations. Adequate Operating Experience Feedback (OEF) programme should be established as a basis for the event reporting. Following an unusual event, nuclear regulatory bodies should review an event report provided by the licensee and inspect the affected installation to verify actual conditions and actions taken. The staff of nuclear regulators must therefore know how such event reports should look like and what the post-event inspections should include

The webinar will show participants how an event cause analysis should be performed and what information should be included in an event report. The lectures will also present how the post-event inspection should be organised and what the regulatory inspectors should focus on. 

In particular, the webinar will deliver presentations and discussions on: 

• Root Cause Analysis (RCA) methods
• Evaluation of an RCA report based on an event case study
• Licensee corrective actions
• Event coding system
• Regulatory oversight including inspections of a licensee’s OEF programme
• Main components of post-event inspections
• Follow-up inspections by the regulator 

The presentations will be complemented by participants’ activities and exercises. 

Further details and a schedule are provided in the following agenda:

Organisation 

The training course is organized by the European Commission’s Joint Research Centre (JRC) Petten within the European Clearinghouse on Operating Experience Feedback, in collaboration with the Enconet Consulting, GmbH, Vienna, Austria.

• The course language is English.
• The participation is free of charge.
• At the end of the course, each participant receives a certificate of attendance. 

Dates and venue 

The training will be delivered as on-line webinar using the Cisco Webex platform. The webinar will take place from 6 to 10 October 2025 with a break on 8 October 2025. A detailed schedule is provided in the agenda.  

Registered participants will receive a connection link after the closing of registrations. 

Lecturers 

Dorian S. Conger 

Mr. Dorian S. Conger is an internationally recognised expert in incident investigation, root cause analysis and safety culture. During his 40 years in business, he has participated in projects or training courses for clients on all continents. He was involved in major investigations at commercial and government facilities including nuclear, manufacturing, aerospace, chemical, and petroleum. He published his first paper on the impact of safety culture on organisations in 1974 and has published several papers on this topic since then. Dorian was responsible for integrating the evaluation of safety culture into the USNRC inspector training programmes. 

Zdeněk Tipek 

Mr Zdeněk Tipek is an internationally recognized expert in NPP inspections and safety analyses. He has had over 31 years of work experience in nuclear safety. Mr. Tipek worked as a resident inspector of the Czech nuclear regulatory body (SÚJB) at the Temelín Nuclear Power Plant (NPP) for 15 years. He regularly monitored power plant events, cooperated in their analysis and conducted inspections. He later worked as the SÚJB Vice-Chair responsible for Nuclear Safety Department. He supervised planning and implementation of regulatory inspections at NPPs, including OEF, risk-informed decision making, and safety culture. Mr. Tipek has supported third countries in development of nuclear regulatory framework and NPP inspection capabilities. He has delivered training in the Czech Republic and internationally. 

Siniša Cimeša 

Mr. Siniša Cimeša has got 22 years of experience in nuclear safety. For 18 years, he worked at the Slovenian Nuclear Safety Administration (SNSA). He was involved in many 4 regulatory tasks, including safety culture supervision, review and supervision of OEF (domestic and foreign), event analysis, and conducting inspections. Later, as the head of the Operational Safety Section of the SNSA's Nuclear Safety Division, he was responsible for supervision of the NPP's operation through safety performance indicator system, OEF, and combined thematic inspections. Mr. Cimeša currently works as a senior consultant at Enconet supporting regulatory activities in several EU and non-EU countries. He is a lead expert in various EU-funded projects on safety analyses, OEF, development of nuclear regulations, etc.