ML16076A061

Notification of Sequoyah Nuclear Plant - Component Design Bases Inspection - NRC Inspection Report 05000327/2016007, 05000328/2016007

ML16076A061
Person / Time
Site:	Sequoyah
Issue date:	03/15/2016
From:	Bartley J NRC/RGN-II/DRS/EB1
To:	James Shea Tennessee Valley Authority
References
IR 2016007
Download: ML16076A061 (6)

See also: IR 05000327/2016007

Text

UNITED STATES

NUCLEAR REGULATORY COMMISSION

REGION II

245 PEACHTREE CENTER AVENUE NE, SUITE 1200

ATLANTA, GEORGIA 30303-1257

March 15, 2016

Mr. Joseph W. Shea

Vice President, Nuclear Licensing

Tennessee Valley Authority

1101 Market Street, LP 3D-C

Chattanooga, TN 37402-2801

SUBJECT: NOTIFICATION OF SEQUOYAH NUCLEAR PLANT - COMPONENT DESIGN

BASES INSPECTION - NRC INSPECTION REPORT 05000327/2016007,

05000328/2016007

Dear Mr. Shea:

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 (CDBI) at your Sequoyah

Nuclear Station during the weeks of May 9 - 13, May 23 - 27, and June 13 - 17, 2016.

Mr. Robert Patterson, a Reactor Inspector in Region II, will lead the inspection team. This

inspection will be conducted in accordance with the baseline inspection procedure (IP)

71111.21, Component Design Bases Inspection, issued November 29, 2013.

The inspection will evaluate the capability of risk-significant/low margin components to function

as designed and to support proper system operation. The inspection will also include a review

of selected operator actions, operating experience, and modifications.

During a telephone conversation on March 14, 2016, Mr. Patterson confirmed with

Ms. Rebecca Travis of your staff, arrangements for an information-gathering site visit and the

3-week onsite inspection. The schedule is as follows:

• Information-gathering visit: Week of April 25 - 29, 2016

• Onsite inspection: Weeks of May 9 - 13, May 23 - 27, and June 13 - 17, 2016

The purpose of the information-gathering visit is to meet with members of your staff to identify

risk-significant components and operator actions. Information and documentation needed to

support the inspection will also be identified. Mr. Rudolph Bernhard, a Region II Senior Reactor

Analyst, will support Mr. Patterson during the information-gathering visit to review probabilistic

risk assessment data and identify risk-significant components, which will be examined during

the inspection.

The enclosure lists documents needed prior to the information-gathering visit. Please provide

the referenced information to the Region II Office by April 4, 2016.

J. Shea 2

Additional documents will be requested during the information-gathering visit. The inspectors

will try to minimize your administrative burden by specifically identifying only those documents

required for inspection preparation. The additional information should be available to the team

in the Region II Office prior to the inspection teams preparation week of May 2, 2016.

Mr. Patterson will also discuss the following inspection support administrative details:

(1) availability of knowledgeable plant engineering and licensing personnel to serve as points of

contact during the inspection, (2) method of tracking inspector requests during the inspection,

(3) licensee computer access, (4) working space, (5) arrangements for site access, and (6)

other applicable information.

In accordance with Title 10 of the Code of Federal Regulations 2.390, Public Inspections,

Exemptions, Requests for Withholding, of the NRC's Rules of Practice, a copy of this letter, its

enclosure, and your response (if any) will be available electronically for public inspection in the

NRC Public Document Room or from the Publicly Available Records (PARS) component of

NRC's Agencywide Document Access and Management 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. If you have any questions regarding the

information requested or the inspection, please contact Mr. Patterson at 404-997-4667 or

contact me at 404-997-4607.

Sincerely,

/RA: Geoffrey Ottenberg for/

Jonathan H. Bartley, Chief

Engineering Branch 1

Division of Reactor Safety

Docket Nos.: 50-327, 50-328

License Nos.: DPR-77, DPR-79

Enclosure:

Information Request for Sequoyah

Nuclear Plant - Component Design Bases

Inspection

cc: Distribution via Listserv

_________________________ SUNSI REVIEW COMPLETE FORM 665 ATTACHED

OFFICE RII:DRS RII:DRS

SIGNATURE RNP1 GKO FOR JHB1

NAME RPATTERSON JBARTLEY

DATE 3/ 15 /2016 3/ 15/2016 3/ /2016 3/ /2016 3/ /2016 3/ /2016 3/ /2016

E-MAIL COPY? YES NO YES NO YES NO YES NO YES NO YES NO YES NO

INFORMATION REQUEST FOR SEQUOYAH NUCLEAR STATION

COMPONENT DESIGN BASES INSPECTION

Please provide the information electronically in .pdf files, Excel, or other searchable format on

CDROM (or FTP site, SharePoint, etc.). The CDROM (or Web site) should be indexed and

hyperlinked to facilitate ease of use.

1. From your most recent probabilistic safety analysis (PSA) excluding external events and

fires:

a. Two risk rankings of components from your site-specific PSA: one sorted by risk

achievement worth (RAW), and the other sorted by Birnbaum Importance

b. A list of the top 500 cutsets

2. From your most recent PSA including external events and fires:

a. Two risk rankings of components from your site-specific PSA: one sorted by RAW,

and the other sorted by Birnbaum Importance

b. A list of the top 500 cutsets

3. Risk ranking of operator actions from your site-specific PSA sorted by RAW, including

human reliability worksheets for these items

4. List of time-critical operator actions with a brief description of each action

5. List of Emergency and Abnormal Operating Procedures revised (significant) since

April 1, 2013, with a brief description of each revision

6. List of components with low design margins (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, and motor-operated valve risk-margin rankings, etc.), and

associated evaluations or calculations

7. List of station operating experience evaluations/reviews performed and documented in the

stations corrective action program for industry events and safety-related equipment

failures/vulnerabilities (as communicated by NRC Generic Communications, Industry

Communications, 10 CFR Part 21 Notifications) since April 1, 2013

8. List and brief description of safety-related structures, systems, or components (SSCs)

design modifications implemented since April 1, 2013

9. List and brief description of common-cause component failures that have occurred

since April 1, 2013

10. List and brief description of operability evaluations completed since April 1, 2013

Enclosure

2

11. List of equipment on the sites Station Equipment Reliability Issues List, including a

description of the reason(s) why each component is on that list, and summaries (if

available) of your plans to address the issue(s)

12. List and brief description of equipment currently in degraded or nonconforming status as

described in Regulatory Issue Summary 05-020

13. List and reason for equipment classified in maintenance rule (a)(1) status from

April 1, 2013, to present

14. Copies of system descriptions (or the design basis documents) for safety-related systems

15. Copy of Updated Final Safety Analysis Report

16. Copy of Technical Specification(s)

17. Copy of Technical Specifications Bases

18. Copy of Selected Licensee Commitment Manual(s)

19. List and brief description of Root Cause Evaluations performed since April 1, 2013

20. In-service Testing Program Procedure(s)

21. Corrective Action Program Procedure(s)

22. One-line diagram of electrical plant (electronic and full size - hard copy week of

March 28, 2016)

23. Index and legend for electrical plant one-line diagrams

24. Primary AC calculation(s) for safety-related buses

25. Primary DC calculation(s) for safety-related buses

26. Piping and instrumentation diagrams (P&IDs) for safety-related systems (electronic and 1/2

size - hard copy week of March 28, 2016)

27. Index and Legend for P&IDs

28. Copy of Operability Determination procedure(s)

29. Copies of corrective action documents (i.e. condition reports (CRs)) associated with

findings from previous CDBI, if applicable

30. Index (procedure number, title, and current revision) of station Emergency Operating

Procedures, Abnormal Operating Procedures, and Annunciator Response Procedures

31. Copy of any self-assessments performed in preparation for this inspection

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32. List of any PIPs generated in preparation for this inspection

33. Copies of PIPs generated from previous CDBI (2013)

34. Contact information for a person to discuss PSA information prior to the information-

gathering trip (name, title, phone number, and e-mail address)