Stichting Laka

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: Fri, 26-02-1993
ERF description: Unit 2 was shut down when a fuelling machine containing irradiated fuel developed a heavy water leak of about 2 l/s within containment, shortly after the removal of the closure plugs from a fuel channel. A unit alert was declared and notifications made. No abnormal release of radioactivity resulted.
Within three hours the unit was cold and depressurized, and channel closure plugs were re-installed once adequate cooling of the fuel in the fuelling machine was confirmed. The next day the irradiated fuel was discharged to the storage bay. The cause of the leakage failure of a pipe fitting upstream of the relief valve, is under investigation. The unit was returned to service February 19.
This event was classified below scale, no safety significance (INES=0), based on a real expected initiator (reactor coolant system leakage that would not prevent a controlled reactor shutdown and cooldown) with full safety function availability.
ERF rating date: 19-02-1993
ERF contact person: Mr. W. Andersen
ERF address: 700 University Avenue, Canada
ERF affiliation: Ontario Hydro H11-B1, Nuclear Technology Services Division

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