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Event Report Forms (ERFs) are filed to the IAEA. Sometimes there are multiple event reports, updating the rating, the event description. Here you only see the latest event report

ERF send date: Wed, 18-06-1997
ERF description: During depressurization of the reactor, containment inspection was carried out and valves were opened to exchange the nitrogen atmosphere in wetwell. The pressure suppression function was then degraded, this operation is only allowed when the reactor is completely depressurized. This was caused by two conflicting instructions for atmosphere exchange.
Justification:
The event is regarded as degradation of defence-in-depth without an initiator. The pressure suppression function is inadequate in the case of a medium or large LOCA (unlikely probability). No additional factors.
ERF rating date: 26-05-1997
ERF contact person: MR. F. REISCH
ERF address: Sweden
ERF affiliation: SWEDISH NUCLEAR POWER INSPECTORATE (SKI)

This map shows a selection of reports from nuclear and radiological incidents stored in the IAEA NEWS-database.
Locations are estimates. Contact us if a location is wrong.
The map shows a maximum of 100 incidents. If hundred incidents or more are within the map, the yellow perimeter indicates from where events are excluded. Drag or zoom the map to explore different areas.

Power Reactor Research Reactor Radwaste Facility Enrichment Facility Radiation Source Irradiation/Accelerator Facility Transportation

Fuel Fabrication Fuel Reprocessing Research Facility Mining/Milling Radioisotope Processing/Handling Facility Other