ML062850443

Notification of Watts Bar Nuclear Power Plant - Component Design Bases Inspection - NRC Inspection Report 05000390/2007006

ML062850443
Person / Time
Site:	Watts Bar
Issue date:	10/12/2006
From:	Scott Freeman NRC/RGN-II/DRS/EB1
To:	Singer K Tennessee Valley Authority
References
IR-07-006
Download: ML062850443 (5)

See also: IR 05000390/2007006

Text

October 12, 2006Tennessee Valley AuthorityATTN:Mr. Karl W. SingerChief Nuclear Officer and

Executive Vice President6A Lookout Place

1101 Market Street

Chattanooga, TN 37402-2801SUBJECT:NOTIFICATION OF WATTS BAR NUCLEAR POWER PLANT - COMPONENTDESIGN BASES INSPECTION - NRC INSPECTION REPORT

05000390/2007006Dear Mr. Singer:

The purpose of this letter is to notify you that the U.S. Nuclear Regulatory Commission (NRC)Region II staff will conduct a component design bases inspection at your Watts Bar NuclearPower Plant during the weeks of February 12-16, 2007, February 26-March 2, 2007, and March5-9, 2007. The inspection team will be led by Steve Rose, a Senior Reactor Inspector from theNRC's Region II Office. This inspection will be conducted in accordance with the baselineinspection procedure, Procedure 71111.21, Component Design Bases Inspection, issued June

22, 2006.The inspection will evaluate the c

apability of risk significant / low margin components to functionas designed and support proper system operation. The inspection will also include a review ofselected operator actions, operating experience, and modifications. During a telephone conversation on October 11, 2006, Mr. Moore of the Region II staffconfirmed with Mr. Brian Thomas of your staff, arrangements for an information gathering site

visit and the three-week onsite inspection. The schedule is as follows:*Information gathering visit: Week of January 29-February 2, 2007.*Onsite weeks: February 12-16, 2007, February 26-March 2, 2007, and March 5-9, 2007. The purpose of the information gathering visits is to meet with members of your staff to identifyrisk-significant components and operator actions. Information and documentation needed to

support the inspection will also be identified. Mr. Rudy Bernhard, a Region II Senior ReactorAnalyst, may accompany Mr. Rose during the information gathering visit to review probabilisticrisk assessment data and identify risk significant components which will be examined during theinspection.

TVA 2The enclosure lists documents that will be needed prior to the information gathering visit. Please provide this information to the Atlanta office by January 15, 2007. Please contact Mr.

Moore or Mr. Rose prior to preparing copies of the materials listed in the enclosure.The inspectors will try to minimize your administrative burden by specifically identifying onlythose documents required for the inspection preparation.During the information gathering visit, the team leader will also discuss the following inspectionsupport administrative details: office space, supplemental documents requested to be made

available to the team in the Region II office prior to the inspection preparation week of

February 5, 2007; arrangements for site access; and the availability of knowledgeable plantengineering and licensing personnel to serve as points of contact during the inspection.In accordance with 10 CFR 2.390 of the NRC's "Rules of Practice," a copy of this letter and itsenclosure will be available electronically for public inspection in the NRC Public DocumentRoom 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).Thank you for your cooperation in this matter. Should you have any questions concerning thisinformation requested or the inspection, please contact Mr. Randy Moore at (404) 562-4628,

Mr. Steve Rose (404) 562 4609, or me at (404) 562-4605.Sincerely,/RA/Scott Freeman, Acting ChiefEngineering Branch 1

Division of Reactor SafetyDocket Nos. 50-390License No. NPF-90Enclosure: Information Request for Watts Bar Nuclear Power Plant Component Design Bases Inspectioncc w/encl - See page 3

TVA 3cc w/encl:Ashok S. Bhatnagar

Senior Vice President

Nuclear Operations

Tennessee Valley Authority

Electronic Mail DistributionLarry S. Bryant, Vice PresidentNuclear Engineering & Technical Services

Tennessee Valley Authority

Electronic Mail DistributionMichael D. SkaggsSite Vice President

Watts Bar Nuclear Plant

Tennessee Valley Authority

Electronic Mail DistributionPreston D. SwaffordSenior Vice President

Nuclear Support

Tennessee Valley Authority

Electronic Mail DistributionGeneral CounselTennessee Valley Authority

Electronic Mail DistributionJohn C. Fornicola, General ManagerNuclear Assurance

Tennessee Valley Authority

Electronic Mail DistributionRussell R. Thompson, Acting ManagerCorporate Nuclear Licensing and

Industry Affairs

Tennessee Valley Authority

4X Blue Ridge

1101 Market Street

Chattanooga, TN 37402-2801Robert H. Bryan, Jr., General ManagerLicensing & Industry Affairs

Tennessee Valley Authority

Electronic Mail DistributionJames D. Smith, Acting ManagerLicensing and Industry Affairs

Watts Bar Nuclear Plant

Tennessee Valley Authority

Electronic Mail DistributionJay Laughlin, Plant ManagerWatts Bar Nuclear Plant

Tennessee Valley Authority

Electronic Mail DistributionCounty ExecutiveRhea County Courthouse

375 Church Street, Suite 215

Dayton, TN 37321-1300County Mayor

P. O. Box 156

Decatur, TN 37322Lawrence E. Nanney, DirectorTN Dept. of Environment & Conservation

Division of Radiological Health

Electronic Mail DistributionAnn Harris341 Swing Loop

Rockwood, TN 37854James H. Bassham, DirectorTennessee Emergency Management

Agency

Electronic Mail Distribution

_________________________OFFICERII:DRSRII:DRSRII:DRSRII:DRPSIGNATURE/RA//RA//RA//RA//RA/NAMERBernhardRMooreSFreemanMWidmannSRoseDATE10/12/200610/11/200610/12/200610/12/200610/12/200610/ /200610/ /2006

E-MAIL COPY? YESNO YESNO YESNO YESNO YESNO YESNO YESNO

EnclosureINFORMATION REQUEST FOR WATTS BAR NUCLEAR POWER PLANT COMPONENT DESIGN BASES INSPECTIONPlease provide the information electronically in ".pdf" files, Excel, or other searchable format onCDROM. The CDROM should be indexed and hyperlinked to facilitate ease of use. Information in "lists" should contain enough information to be easily understood to someone

who has a knowledge of pressurized water reactor technology.1.Risk ranking of components from your site specific probabilistic safety analysis (PSA)sorted by Risk Achievement Worth (RAW) and sorted separately by Birnbaum

Importance. If possible, please provide a correlation between actual plant componentsin plain language, and RAW values.2.Provide a list of the top 500 cut sets from your PSA.

3.Risk ranking of operator actions from your site specific PSA sorted by RAW. Providecopies of your human reliability worksheets for these items.4.If you have an External Event or Fire PSA Model, provide the information requested inItems 1 and 2 for external events and fire.5.Any pre-existing evaluation or list of components and calculations with low designmargins (i.e., pumps closest to the design limit for flow or pressure, diesel generator

close to design required output, heat exchangers close to rated design heat removal,

MOV risk-margin rankings, etc.).6.A list of the last two years of operating experience evaluations, modifications, andcorrective actions sorted by component or system. (Safety related systems only)7.Information of any common cause failure of components experienced in the last 5 yearsat your facility.8.Contact person to discuss PRA information prior to bag man trip: phone number and e-mail address.9.List of equipment on "Station Equipment Problem List", list of equipment in GL 91-18status, list of equipment in MR(a)(1) status, list of equipment for which operabilityevaluation was required in past 2 years.10.A list of failed or missed Technical specification required surveillance for past 2 years(via PER, work order, etc.)