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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: Thu, 15-08-1991
ERF description: The unit was in the scheduled maintenance outage. Reactor was shut down. While repairing the gate valve at RCP suction the rubber-metallic plug from the suction header side was pressed out by water column. As a result of draining of the downcomer section of the primary circuit right side the water got into the rooms adjacent to RCP sealed room.
Personnel exposure and radioactivity releases to environment above levels prescribed for normal operation did not occur. Event causes are under investigation. Breach of safe operation limits and conditons did not occur.
BASIS FOR RATING: Initial event - primary water spillage. Event - expected, real. Safety function availability - full, which corresponds to level 1/2 (A-2R). Since the potential cause of the event in safety culture deficiencies the maximum level has been chosen.
DIFFICULTIES IN RATING:
ERF rating date: 01-08-1991
ERF contact person: Mr. V.I. Andreev
ERF address: Kitaisky Proezd 7, 103074 Moscow, Ukraine
ERF affiliation: Min. of Nuclear Power and Industry, of the USSR, Dept. of Principle, Accident Dispatch

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