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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, 15-11-1995
ERF description: Yonggwang unit 3 was operated at rated power (1000 MWe). During normal operation, a test was performed to check the operability of the Control Rod Assembly Calculator (CEAC). In the withdrawal process of shutdown rod #39 in the shutdown rod group B, the rod was dropped due to the fault condition of the card in control system. At 9:08, September 6, 1995 reactor scram followed due to the increase of penalty factor to Core Protection Calculator (CPC). After investigation, the licensee replaced a new control module and checked its sound availability ; reactor was back to power at 17:51, on the same day.
There was no release of radioactive materials outside the reactor building and no unplanned exposure to employees.

ERF rating date: 06-10-1995
ERF contact person: Y.C. KANG
ERF address: KYUNGGI-DO, 427-760, GWACHEON CITY, South Korea
ERF affiliation: NUCLEAR INSPECTION AND ENFORCEM. DIV, MINISTRY OF SCIENCE AND TECHNOL., GOVERNMENT COMPLEX II

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