Press Release-I-05-039, NRC Begins Special Inspection at James A. Fitzpatrick Nuclear Plant

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Press Release-I-05-039: NRC Begins Special Inspection at James A. Fitzpatrick Nuclear Plant
ML051880487
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Site: FitzPatrick Constellation icon.png
Issue date: 07/07/2005
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Office of Public Affairs Region I
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Category:Press Release
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Press Release-I-05-039
Download: ML051880487 (2)


Text

NRC NEWS U.S. NUCLEAR REGULATORY COMMISSION Office of Public Affairs, Region I 475 Allendale Road, King of Prussia, Pa.

Web Site: http://www.nrc.gov/OPA No. I-05-039 July 7, 2005

Contact:

Diane Screnci, 610/337-5330 E-mail: opa1@nrc.gov Neil Sheehan, 610/337-5331 NRC BEGINS SPECIAL INSPECTION AT JAMES A. FITZPATRICK NUCLEAR PLANT The Nuclear Regulatory Commission has initiated a special inspection at the James A.

FitzPatrick nuclear power plant in response to the discovery of cracking in the facilitys torus, or pressure suppression chamber, and a shutdown cooling line. Members of the three-person team arrived this afternoon at the Scriba, N.Y., plant, which is operated by Entergy.

Among the objectives of the special inspection in the short term will be to review the adequacy of Entergys initial evaluations of the cause, the companys assessment of whether any additional cracking exists and its repair work prior to the plant returning to service. Subsequently, the inspectors will more closely examine Entergys corrective actions, including its investigation into the defects, its root-cause evaluation and any potential generic safety concerns.

We expect Entergy to undertake a vigorous and thorough review of these issues, NRC Region I Administrator Samuel J. Collins said. The purpose of this special inspection is to help ensure these problems are fully understood and addressed so that the plants safety margins are preserved.

The plants torus is a large, doughnut-shaped structure that is partially filled with water (identified in graphic below as the pressure suppression chamber). It is located at the base of the reactor building. During a severe event at the facility, steam generated by the reactor would be deposited into the chamber to help reduce heat and pressure levels and cool down the plant.

On June 27, a crack measuring about 4.6 inches in length was found on the torus. Because it represented a potential loss of the plants containment mechanisms during an emergency, the reactor was subsequently shut down. It remains out of service while reviews and repairs are undertaken.

Entergy also identified a crack on a shutdown cooling line on July 4. This crack, measuring about 6.5 inches in length, is of concern because a failure of the line could complicate the cooling of the plant.

Once the inspection is completed, the special inspection team will document its findings and conclusions in a report that will be issued within 45 days of an exit meeting with plant managers.

The above graphic shows a cross-section of a pressure suppression chamber, also known as a torus. The cross-section measures 29.6 feet wide. The chamber typically holds 790,000 gallons of water.