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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, 26-01-1994
ERF description: During the refueling of the plant a visual inspection of the CRDM (control rod drive mechanims) housings a crack in the housing number 36 was discovered. The housing is in reserve without control rod and it is in peripherical position. The crack has 20 mm length and axial orientation pass through the wall of the mechanism and is located 30 cm over the head of the vessel.
With additional ultrasonic inspection another crack has been detected in the same housing, on the opposite side, no passing through the wall of housing.
Additional inspection on two more housings reveals another no passing axial crack in the housing number 31.
The causes of the event are unknown.
ERF rating date: 18-01-1994
ERF contact person: Mr. J. Gil
ERF address: Justo Dorado 11, Spain
ERF affiliation: Consejo de Seguridad Nuclear

This map shows a selection of reports from nuclear and radiological incidents stored in the IAEA NEWS-database.
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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