ML16111B331

Notification of NRC Component Design Bases Inspection (05000528/2016007; 05000529/2016007; 05000530/2016007) and Initial Request for Information

ML16111B331
Person / Time
Site:	Palo Verde
Issue date:	04/20/2016
From:	Thomas Farnholtz Region 4 Engineering Branch 1
To:	Edington R Arizona Public Service Co
References
IR 2016007
Download: ML16111B331 (8)

See also: IR 05000528/2016007

Text

UNITED STATES

NUCLEAR REGULATORY COMMISSION

REGION IV

1600 E. LAMAR BLVD.

ARLINGTON, TX 76011-4511

April 20, 2016

Mr. Randall K. Edington

Executive Vice President Nuclear/CNO

Arizona Public Service Company

P.O. Box 52034, MS 7602

Phoenix, AZ 85072-2034

SUBJECT: PALO VERDE NUCLEAR GENERATING STATION, UNITS 1, 2, AND 3 -

NOTIFICATION OF NRC COMPONENT DESIGN BASES INSPECTION

(05000528/2016007; 05000529/2016007; 05000530/2016007) AND INITIAL

REQUEST FOR INFORMATION

Dear Mr. Edington:

On July 18, 2016, the U.S. Nuclear Regulatory Commission (NRC) will begin a triennial baseline

Component Design Bases Inspection at the Palo Verde Generating Station. A seven-person

team will perform this inspection using NRC Inspection Procedure 71111.21, Component

Design Bases Inspection.

The inspection focuses on components and operator actions that have high risk and low design

margins. The samples reviewed during this inspection will be identified during an information

gathering visit and during the subsequent in-office preparation week. In addition, a number of

operating experience issues will also be selected for review.

The inspection will include an information gathering site visit by the team leader and a senior

reactor analyst, and 3-weeks of onsite inspection by the team. The inspection will consist of

five NRC inspectors and two contractors, of which six will focus on engineering and one on

operations. The current inspection schedule is as follows:

Onsite Information Gathering Visit: July 18 - 22, 2016

Preparation Week: July 25 - 29, 2016

Onsite Weeks: August 1 - 5, 15 - 19, and August 29 - September 2, 2016.

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

potential risk-significant components and operator actions. The lead inspector will also request

a tour of the plant with members of your operations staff and probabilistic safety assessment

staff. During the onsite weeks, several days of time will be needed on the plant-referenced

simulator in order to facilitate the development of operator action-based scenarios. Additional

R. Edington -2-

information and documentation needed to support the inspection will be identified during the

inspection, including interviews with engineering managers, engineers, and probabilistic safety

assessment staff.

Our experience with these inspections has shown that they are extremely resource intensive,

both for the NRC inspectors and the licensee staff. In order to minimize the inspection impact

on the site and to ensure a productive inspection, we have enclosed a request for information

needed for the inspection. The request has been divided into two groups. The first group lists

information necessary for the information gathering visit and for general preparation. This

information should be available to the regional office no later than July 11, 2016. Insofar as

possible, this information should be provided electronically to the lead inspector. Since the

inspection will be concentrated on high risk/low margin components, calculations associated

with your list of high risk components should be available to review during the information

gathering visit to assist in our selection of components based on available design margin.

The second group of documents requested lists information necessary to aid the inspection

team in tracking issues identified as a result of the inspection. It is requested that this

information be provided to the lead inspector as the information is generated during the

inspection. An additional request will be made by the team during the preparation week once

the specific components have been selected. Additional requests by inspectors will also be

made throughout all three onsite weeks for specific documents needed to complete the review

of that component/selection. It is important that all of these documents are up to date and

complete in order to minimize the number of additional documents requested during the

preparation and/or the onsite portions of the inspection. In order to facilitate the inspection, we

request that a contact individual be assigned to each inspector to ensure information requests,

questions, and concerns are addressed in a timely manner.

The lead inspector for this inspection is Wayne Sifre. We understand that our licensing

engineer contact for this inspection is Mr. Dave Heckman. If there are any questions about the

inspection or the requested materials, please contact the lead inspector by telephone at

817-200-1193 or by e-mail at Wayne.Sifre@nrc.gov.

This letter does not contain new or amended information collection requirements subject to

the Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et seq.). Existing information collection

requirements were approved by the Office of Management and Budget, control

number 3150-0011. The NRC may not conduct or sponsor, and a person is not required to

respond to, a request for information or an information collection requirement unless the

requesting document displays a currently valid Office of Management and Budget control

number.

In accordance with 10 CFR 2.390 of the NRCs Rules of Practice, a copy of this letter will be

made available electronically for public inspection in the NRC Public Document Room or from

the Publicly Available Records (PARS) component of NRCs document system (ADAMS).

R. Edington -3-

ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the

Public Electronic Reading Room).

Sincerely,

/RA/

Thomas R. Farnholtz, Chief

Engineering Branch 1

Division of Reactor Safety

Docket Nos: 50-528; 50-529; 50-530

License Nos: NPF-41; NPF-51; NPF-74

Enclosure: Component Design Bases

Inspection Request for Information

Initial Request for Information

Component Design Bases Inspection

Palo Verde Nuclear Generating Station

Inspection Report: 05000528/2016007, 05000529/2016007, 05000530/2016007

Information Gathering Dates: July 18 - 22, 2016

Inspection Dates: August 1 - 5, 2016, August 15 - 19, 2016,

August 29 - September 2, 2016

Inspection Procedure: IP 71111.21, Component Design Bases Inspection

Lead Inspector: Wayne Sifre, Senior Reactor Inspector

I. Information Requested Prior to Information Gathering Visit (July 18, 2016)

The following information (Section I of this enclosure) should be sent to the Region IV

office in hard copy or electronic format (Certrec IMS preferred), to the attention of Wayne

Sifre by July 11, 2016, to facilitate the reduction in the items to be selected for a final list

during the preparation week July 25, 2016. The inspection team will finalize its sample

selections during the prep week and will provide an additional information request with

specific items by sample. This information shall be made available by the first day of the

onsite portion of the inspection. The specific items selected from the lists shall be

available and ready for review on the day indicated in this request. *Please provide

requested documentation electronically in pdf files, Excel, or other searchable formats,

if possible. The information should contain descriptive names, and be indexed and

hyperlinked to facilitate ease of use. Information in lists should contain enough

information to be easily understood by someone who has knowledge of pressurized

water reactor technology. If requested documents are large and/or only hard copy

formats are available, please inform the inspector(s), and provide subject documentation

during the first day of the onsite inspection.

1. An Excel spreadsheet of equipment basic events (with definitions) including

importance measures sorted by risk achievement worth (RAW) and Fussell-

Vesely (FV) from your internal events probabilistic risk assessment (PRA).

Include basic events with RAW value of 1.3 or greater.

2. A list of the top 50 cut-sets from your PRA.

3. Copies of PRA system notebooks, and the latest PRA summary document.

4. An excel spreadsheet of PRA human action basic events or risk ranking of

operator actions from your site specific PSA sorted by RAW and FV. Provide

copies of your human reliability worksheets for these items.

-1- Enclosure

5. If you have an external events or fire PSA model, provide the information

requested in items 1-4 for external events and fire.

6. Any pre-existing evaluation or list of components and associated calculations

with low design margins.

7. A list of high risk maintenance rule systems/components and functions; based on

engineering or expert panel judgment.

8. A list of operating experience evaluations for the last 2 years.

9. A list of all time-critical operator actions in procedures.

10. A list of permanent and temporary modifications sorted by component identified

in Item 1.

11. A list of current operator work arounds/burdens.

12. A list of the design calculations, which provide the design margin information for

components included in Item 1. (Calculations should be available during the

information gathering visit).

13. List of root cause evaluations associated with component failures or design

issues initiated/completed in the last 5 years.

14. A copy of the current management and engineering organizational charts.

15. A copy of the Palo Verde Nuclear Generating Station IPEEE, if available

electronically.

16. A list of any common-cause failures of components in the last 3 years.

17. An electronic copy of the Design Bases Documents.

18. An electronic copy of the System Health notebooks.

19. A copy of any internal/external self-assessments and associated corrective

action documents generated in preparation for the inspection.

20. A copy of engineering/operations related audits completed in the last 2 years.

21. A list of motor operated valves (MOVs) in the program, design margin and risk

ranking.

22. A list of air operated valves (AOVs) in the valve program, design margin and risk

ranking.

23. Structure, system, and components in the Maintenance Rule (a)(1) category.

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24. Site top 10 issues list, if available.

25. Procedures used to accomplish operator actions associated with the basic

events in your PRA.

26. A list of licensee contacts for the inspection team with pager or phone numbers.

27. Electronic copies of the Technical Specifications, Technical Specifications Bases,

and the Updated Final Safety Analysis Report.

II. Information Requested to be provided throughout the inspection.

1. Copies of any corrective action documents generated as a result of the teams

questions or queries during this inspection.

2. Copies of the list of questions submitted by the team members and the

status/resolution of the information requested (provide daily during the inspection to

each team member).

Inspector Contact Information:

Wayne Sifre Eric Stamm Jim Drake

Senior Reactor Inspector Senior Reactor Inspector Senior Reactor Inspector

817-200-1193 404-997-4575 817-200-1558

Wayne.Sifre@nrc.gov Eric.Stamm@nrc.gov James.Drake@nrc.gov

Shiattin Makor Chad Stott

Reactor Inspector Reactor Inspector

817-200-1507 817-200-1526

Shiattin.Makor@nrc.gov Chad.Stott@nrc.gov

Mailing Address:

U.S. NRC, Region IV

Attn: Wayne Sifre

1600 East Lamar Blvd.

Arlington, TX 76011-4511

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ML16111B331

SUNSI Review ADAMS Publicly Available Non-Sensitive Keyword:

By: WSifre Yes No Non-Publicly Available Sensitive NRC-002

OFFICE DRS/EB1 C:EB1

NAME WSifre TFarnholtz

SIGNATURE /RA/ /RA/

DATE 4/19/16 4/20/16

Letter to Randall K. Edington from Thomas Farnholtz, dated April 20, 2016

SUBJECT: PALO VERDE NUCLEAR GENERATING STATION, UNITS 1, 2, AND 3 -

NOTIFICATION OF NRC COMPONENT DESIGN BASES INSPECTION

(05000528/2016007; 05000529/2016007; 05000530/2016007) AND INITIAL

REQUEST FOR INFORMATION

Electronic distribution by RIV:

Regional Administrator (Marc.Dapas@nrc.gov)

Deputy Regional Administrator (Kriss.Kennedy@nrc.gov)

DRP Director (Troy.Pruett@nrc.gov)

DRP Deputy Director (Ryan.Lantz@nrc.gov)

DRS Director (Anton.Vegel@nrc.gov)

DRS Deputy Director (Jeff.Clark@nrc.gov)

Senior Resident Inspector (Charles.Peabody@nrc.gov)

Resident Inspector (David.You@nrc.gov)

Resident Inspector (Dustin.Reinert@nrc.gov)

PV Administrative Assistant (Yvonne.Dubay@nrc.gov)

Branch Chief, DRP/D (Jeffrey.Josey@nrc.gov)

Project Engineer, DRP/D (Jim.Melfi@nrc.gov)

Project Engineer, DRP/D (Jan.Tice@nrc.gov)

Public Affairs Officer (Victor.Dricks@nrc.gov)

Project Manager (Siva.Lingam@nrc.gov)

Team Leader, DRS/IPAT (Thomas.Hipschman@nrc.gov)

RITS Coordinator (Marisa.Herrera@nrc.gov)

ACES (R4Enforcement.Resource@nrc.gov)

Regional Counsel (Karla.Fuller@nrc.gov)

Technical Support Assistant (Loretta.Williams@nrc.gov)

Senior Congressional Affairs Officer (Jenny.Weil@nrc.gov)

RIV Congressional Affairs Officer (Angel.Moreno@nrc.gov)

RIV/ETA: OEDO (Jeremy.Bowen@nrc.gov)