The 685-megawatt reactor was closed for work on one of the unit’s four safety relief valves, Williams said.
“The leak was captured inside the plant as designed and was not a threat to workers or the public,” he said today in an e-mail from Vermont.
Pilgrim 1 was operating at 100 percent of its capacity yesterday, according to the Nuclear Regulatory Commission.
Entergy said in a report to the NRC that a controlled shutdown was initiated yesterday after a safety valve was “declared inoperable.”
It’s unclear how long repairs will take after workers safely gain access to the valves, located in the reactor- containment building, said Neil Sheehan, a spokesman for the NRC. He said the agency has inspectors on site.
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