ML16097A375
| ML16097A375 | |
| Person / Time | |
|---|---|
| Site: | Watts Bar  |
| Issue date: | 04/06/2016 |
| From: | Bartley J NRC/RGN-II/DRS/EB1 |
| To: | James Shea Tennessee Valley Authority |
| References | |
| IR 2016009 | |
| Download: ML16097A375 (5) | |
See also: IR 05000390/2016009
Text
UNITED STATES
NUCLEAR REGULATORY COMMISSION
REGION II
245 PEACHTREE CENTER AVENUE NE, SUITE 1200
ATLANTA, GEORGIA 30303-1257
April 6, 2016
Mr. Joseph W. Shea
Vice President, Nuclear Licensing
Tennessee Valley Authority
Chattanooga, TN 37402-2801
SUBJECT: NOTIFICATION OF WATTS BAR NUCLEAR PLANT COMPONENT DESIGN
BASES INSPECTION - U.S. NUCLEAR REGULATORY COMMISSION
INSPECTION REPORT 05000390/2016009 AND 05000391/2016009
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 Watts Bar
Nuclear Plant during the weeks of July 25 - 29, August 8 - 12, and August 22 - 26, 2016.
Mr. Jason Eargle, a Senior Reactor Inspector from the NRCs Region II office, will lead the
inspection team. The inspection will be conducted in accordance with Inspection Procedure
71111.21, Component Design Bases Inspection, issued on 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 April 4, 2016, with Mr. Russell Stroud we confirmed
arrangements for an information-gathering site visit and the three-week onsite inspection. The
schedule is as follows:
Information-gathering visit: Week of June 27 - July 1, 2016
Onsite weeks: July 25 - 29, August 8 - 12, and August 22 - 26, 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 Risk
Analyst, will support Mr. Eargle during the information-gathering visit to review probabilistic risk
assessment data and identify risk-significant components to 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 Monday, June 20, 2016.
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 July 18, 2016.
During the information-gathering trip, Mr. Eargle 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
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. Eargle at 404-997-4632 or contact
me at 404-997-4607.
Sincerely,
/RA/
Jonathan H. Bartley, Chief
Engineering Branch 1
Division of Reactor Safety
Docket Nos.: 50-390, 50-391
Enclosure:
Information Request for Watts Bar Nuclear Plant,
Component Design Bases Inspection
cc: Distribution via Listserv
____________________________
SUNSI REVIEW COMPLETE
FORM 665 ATTACHED
OFFICE
RII:DRS
RII:DRS
SIGNATURE
JAE1
JHB1
NAME
J.EARGLE
J.BARTLEY
DATE
4/5/2016
4/ 6/2016
E-MAIL COPY?
YES
NO
YES
NO
Enclosure
INFORMATION REQUEST FOR WATTS BAR 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
May 1, 2012, 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 May 1, 2012.
8.
List and brief description of safety-related structures, systems, or components (SSCs)
design modifications implemented since May 1, 2012.
9.
List and brief description of common-cause component failures that have occurred
since May 1, 2012.
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
May 1, 2012, 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 May 1, 2012.
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 June 27, 2016)
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 June 27, 2016)
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 and the previous
CDBI (2012).
27. List of any condition reports generated in preparation for this inspection and those
generated from previous CDBI (2012).
28. 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)