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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, 13-02-1992
ERF description: During a scheduled outage for refueling and maintenance, the reactor, with the new fuel elements already in place, was in the cold shutdown condition. A loss of instrument air (due to loss of cooling of the non-safety related air compressors) led to full opening of a control valve of the residual heat removal (RHR) system, this led to an increase in the RHR pump flow. This pump was shut down by the operator, with the alleged intention of preventing its damage. The reactor stayed for 10 minutes without forced cooling and the reactor coolant temperature rose from 35 deg. C to 37 deg. C. The instrument air supply was restored and the RHR pump was put into service, no consequences were observed.
ERF rating date: 12-02-1992
ERF contact person: Mr. A.E. Gasparian
ERF address: Rua General Severiano 90, Botafogo, Rio de Jan, Brazil
ERF affiliation: Reactor Department, National Nuclear Energy Commission

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