ML15231A030
| ML15231A030 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 08/13/2015 |
| From: | Bartley J NRC/RGN-II/DRS/EB1 |
| To: | James Shea Tennessee Valley Authority |
| References | |
| IR 2015007 | |
| Download: ML15231A030 (6) | |
See also: IR 05000259/2015007
Text
UNITED STATES
NUCLEAR REGULATORY COMMISSION
REGION II
245 PEACHTREE CENTER AVENUE NE, SUITE 1200
ATLANTA, GEORGIA 30303-1257
August 13, 2015
Mr. Joseph W. Shea
Vice President, Nuclear Licensing
Tennessee Valley Authority
Chattanooga, TN 37402-2801
SUBJECT: NOTIFICATION OF BROWNS FERRY NUCLEAR PLANT COMPONENT DESIGN
BASES INSPECTION - U.S. NUCLEAR REGULATORY COMMISSION
INSPECTION REPORT 05000259/2015007, 05000260/2015007, AND
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 Browns Ferry
Nuclear Plant during the weeks of November 30 - December 4 and December 14 - 18, 2015.
Mr. Wesley Deschaine, the Resident Inspector from the NRCs Sequoyah office, will lead the
inspection team. This inspection will be a pilot to test the feasibility of conducting a two-week
CDBI. The inspection will be conducted in accordance with Inspection Procedure 71111.21T,
Component Design Bases Inspection (Teams), which will be issued at future date. The
inspection procedure is in the NRCs Agency Documents Access and Management System
(ADAMS) as #ML15154A586.
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 August 4, 2015, the staff confirmed with Mr. J. Paul of your
staff, arrangements for an information-gathering site visit and the two-week onsite inspection.
The schedule is as follows:
- Information-gathering visit: Week of October 19 - 23, 2015
- Onsite weeks: November 30 - December 4 and December 14 - 18, 2015
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. Wesley Deschaine, the Sequoyah Nuclear
Plant Resident Inspector, will be conducting all preparation activities associated with the
inspection. In addition, Mr. Rudolph Bernhard, a Region II Senior Risk Analyst, will support
Mr. Deschaine during the information-gathering visit to review probabilistic risk assessment data
and identify risk-significant components, which will be examined during the inspection.
J. Shea 2
The enclosure lists documents that will be needed prior to the information-gathering visit.
Please provide the referenced information to the Region II Office by October 5, 2015. Additional
documents may 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 will need to be available to the team in the
Region II office prior to the inspection teams preparation week of November 16, 2015. During
the information-gathering trip, Mr. Deschaine 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 10 CFR 2.390 of the NRC's "Rules of Practice," a copy of this letter and its
enclosure 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
Documents Access and Management System (ADAMS). ADAMS is accessible from the NRC
website 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. Deschaine at 423-842-8001 or
contact me at 404-997-4607.
Sincerely,
/RA/
Jonathan H. Bartley, Chief
Engineering Branch 1
Division of Reactor Safety
Docket Nos.: 50-259, 50-260, 50-296
License Nos.: DPR-33, DPR-52, DPR-68
Enclosure:
Information Request for Browns Ferry Nuclear Plant,
Component Design Bases Inspection
cc: Distribution via Listserv
_________________________ SUNSI REVIEW COMPLETE FORM 665 ATTACHED
OFFICE RII:DRP RII:DRS
SIGNATURE Via email WXD1 JHB1
NAME WDESCHAINE JBARTLEY
DATE 8/13/2015 8/13/2015 8/ /2015 8/ /2015 8/ /2015 8/ /2015 8/ /2015
E-MAIL COPY? YES NO YES NO YES NO YES NO YES NO YES NO YES NO
INFORMATION REQUEST FOR BROWNS FERRY NUCLEAR PLANT
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 website) 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
c. A list of the top 500 LERF contributors
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. Provide
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 19, 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.).
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, etc.) since April 19, 2013.
8. List and brief description of safety-related structures, systems, or components (SSCs)
design modifications implemented since April 19, 2013.
9. List and brief description of common-cause component failures that have occurred
since April 19, 2013.
Enclosure
2
10. 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).
11. List and brief description of equipment currently in degraded or nonconforming status as
described in NRC Inspection Manual Chapter 0326, Operability Determinations and
Functionality Assessments for Conditions Adverse to Quality or Safety, issued
January 31, 2014.
12. List and reason for equipment classified in maintenance rule (a)(1) status from
April 19, 2013, to present.
13. Copy of Updated Final Safety Analysis Report.
14. Copy of Technical Specification(s).
15. Copy of Technical Specifications Bases.
16. Copy of Technical Requirements Manual(s).
17. List and brief description of Root Cause Evaluations performed since April 19, 2013.
18. Corrective Action Program Procedure(s).
19. Copy of Operability Determination procedure(s).
20. One-line diagram of electrical plant. (Electronic and full size - hard copy week
of October 19 - 23, 2015)
21. Index and legend for electrical plant one-line diagrams.
22. Piping and instrumentation diagrams (P&IDs) for safety-related systems. (Electronic
and 1/2 size - hard copy week of October 19 - 23, 2015)
23. Index and Legend for P&IDs.
24. Copies of corrective action documents (i.e. CRs) associated with findings from previous
CDBI. (If applicable)
25. Index (procedure number, title, and current revision) of station Emergency Operating
Procedures, Abnormal Operating Procedures, and Annunciator Response Procedures.
26. Copy of any self-assessments performed in preparation for this inspection.
27. Copy of the self-assessment performed in preparation for the last CDBI.
28. List of any condition reports generated in preparation for this inspection.
3
29. Copies of condition reports generated from previous CDBI (2013).
30. Contact information for a person to discuss PSA information prior to and during the
information-gathering trip. (Name, title, phone number, and e-mail address)