IR 05000327/2011011

Third Quarter Assessment Letter for Sequoyah Nuclear Plant Unit 1 NRC Inspection Report 05000327-11-011

ML113140370
Person / Time
Site:	Sequoyah
Issue date:	11/10/2011
From:	Croteau R Division Reactor Projects II
To:	James Shea Tennessee Valley Authority
References
IR-11-011
Download: ML113140370 (5)

Text

UNITED STATES ovember 10, 2011

SUBJECT:

THIRD QUARTER ASSESSMENT LETTER FOR SEQUOYAH NUCLEAR PLANT UNIT 1 NRC INSEPCTION REPORT 05000327/2011011

Dear Mr. Shea:

As a result of its continuous review of plant performance, which was completed on October 27, 2011 the NRC updated its assessment of Sequoyah Nuclear Plant Unit 1. The NRCs evaluation consisted of a review of performance indicators and inspection results. This letter informs you of the NRCs assessment of, and its plans for, a future inspection at your facility.

This letter supplements, but does not supersede, the mid-cycle letter issued on September 1, 2011.

The NRCs review of Sequoyah Nuclear Plant Unit 1 identified that the Unplanned Scrams per 7000 Critical Hours performance indicator has crossed the green-to-white threshold. This was due to two trips in the fourth quarter of 2010, one trip in the second quarter of 2011, and one trip in the third quarter of 2011.

The NRC determined the performance at Sequoyah Nuclear Plant Unit 1 to be in the Regulatory Response Column of the Reactor Oversight Process Action Matrix beginning fourth quarter of 2011. Therefore, the NRC plans to conduct a supplemental inspection in accordance with Inspection Procedure 95001, Supplemental Inspection for One or Two White Inputs in a Strategic Performance Area, to provide assurance that the root causes and contributing causes of risk-significant performance issues are understood, that the extent of cause is identified and that the licensees corrective actions for risk-significant performance issues are sufficient to address the root and contributing causes and prevent recurrence. The NRC requests that your staff provide notification of your readiness for the NRC to conduct a supplemental inspection to review the actions taken to address the White Performance Indicator.

TVA 2 In accordance with 10 CFR 2.390 of the NRC=s ARules of Practice,@ a copy of this letter will be available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records (PARS) component of NRC's document system (ADAMS). ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).

Please contact Scott Shaeffer at 404-997-4521 with any questions you have regarding this letter.

Sincerely,

/RA/

Richard P. Croteau, Director Division of Reactor Projects Docket Nos.: 50-327 License Nos.: DPR-77 cc: (See page 3)

TVA 2 In accordance with 10 CFR 2.390 of the NRC=s ARules of Practice,@ a copy of this letter will be available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records (PARS) component of NRC's document system (ADAMS). ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).

Please contact Scott Shaeffer at 404-997-4521 with any questions you have regarding this letter.

Sincerely,

/RA/

Richard P. Croteau, Director Division of Reactor Projects Docket Nos.: 50-327 License Nos.: DPR-77 cc: (See page 3)

XPUBLICLY AVAILABLE G NON-PUBLICLY AVAILABLE G SENSITIVE X NON-SENSITIVE ADAMS: G Yes ACCESSION NUMBER:______ML113140370__________ G SUNSI REVIEW COMPLETE G FORM 665 ATTACHED OFFICE RII:DRP RII:DRP SIGNATURE JDH /RA/ SMS /RA/

NAME JHamman SShaeffer DATE 11/7/2011 11/7/2011 E-MAIL COPY? YES NO YES NO YES NO YES NO YES NO YES NO YES NO OFFICIAL RECORD COPY DOCUMENT NAME: G:\DRPII\RPB6\SEQUOYAH\ASSESSMENT FOLLOW-UP LETTER.DOCX

TVA 3 cc:

J. T. Carlin Site Vice President Sequoyah Nuclear Plant Tennessee Valley Authority Electronic Mail Distribution P. Simmons Plant Manager Sequoyah Nuclear Plant Tennessee Valley Authority Electronic Mail Distribution G. M. Cook Manager Licensing Sequoyah Nuclear Plant Electronic Mail Distribution Dan Green Manager, Corp. Nuclear Licensing - SQN Tennessee Valley Authority Electronic Mail Distribution E. J. Vigluicci Assistant General Counsel Tennessee Valley Authority Electronic Mail Distribution County Mayor Hamilton County Hamilton County Courthouse 208 Courthouse 625 Georgia Avenue Chattanooga, TN 37402-2801 Tennessee Department of Environment &

Conservation Division of Radiological Health 401 Church Street Nashville, TN 37243 Ann Harris 341 Swing Loop Rockwood, TN 37854

TVA 4 Letter to Joseph from Richard P. Croteau dated November 10, 2011 SUBJECT: THIRD QUARTER ASSESSMENT LETTER FOR SEQUOYAH NUCLEAR PLANT UNIT 1 NRC INSEPCTION REPORT 05000327/2011011 Distribution:

C. Evans, RII L. Douglas, RII OE Mail RIDSNRRDIRS PUBLIC RidsNrrPMSequoyah Resource ROP Assessment