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Many errors in TEPCO’s nuclear power plant examination documents at Kashiwazaki Kariwa Unit 3

January 19, 2023
On January 19, TEPCO Holdings revealed that 149 errors were found in the examination documents for the Kashiwazaki Kariwa Unit 3 nuclear power plant in Niigata Prefecture, which is under review by the Nuclear Regulation Authority before its 30th year of operation. 131 of the errors were made using information from Unit 2, which has already been examined.

TEPCO apologized at the review meeting on the same day, saying, “We should reflect on this. The Regulatory Commission said, “This is a matter that concerns the reliability of the documents, and we hope you will take it seriously,” and demanded that a recurrence of the problem be prevented.

According to TEPCO, because they did not know the names of the materials required for the documents, they used those of the Unit 2 reactor of the same type. The same document contained an error due to a programming error, which was discovered when the company checked for similar errors.

Kashiwazaki Kariwa Unit 3, which began operation in August 1993, is currently shut down and has not yet applied for an inspection to restart operations. Nuclear power plants are required to undergo an examination to check the management of their facilities before they reach 30 years of operation. Kyodo News


February 3, 2023 - Posted by | Japan | , , ,

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