ML12104A223

Initial Information Request for NRC Triennial Baseline Component Design Basis Inspection 05000416-2012008

ML12104A223
Person / Time
Site:	Grand Gulf
Issue date:	04/13/2012
From:	Thomas Farnholtz Region 4 Engineering Branch 1
To:	Mike Perito Entergy Operations
References
IR-12-008
Download: ML12104A223 (7)

See also: IR 05000416/2012008

Text

UNITED STATES

NUCLEAR REGULATORY COMMISSION

REGION IV

1600 EAST LAMAR BLVD

ARLINGTON, TEXAS 76011-4511

April 13, 2012

Michael Perito

Site Vice President Operations

Entergy Operations, Inc.

Grand Guif Nuciear Station

P.O. Box 756

Port Gibson, MS 39150

SUBJECT: GRAND GULF NUCLEAR STATION-INITIAL INFORMATION REQUEST FOR

NRC TRIENNIAL BASELINE COMPONENT DESIGN BASIS INSPECTION NRC

INSPECTION REPORT 05000416/2012008

Dear Mr. Perito:

On June 25, 2012, the NRC will begin a triennial baseline Component Design Basis Inspection

at the Grand Gulf Nuciear Station. A six-person team will perform this inspection using NRC

Inspection Procedure 71111.21, "Component Design Basis Inspection."

The inspection focuses on components, operating experience, 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 anaiyst, and 3-weeks of onsite inspection by the team. The inspection wil! consist of

four NRC inspectors and two contractors, of which three will focus on engineering and one on

operations. The current inspection schedule is as follows:

Onsite information gathering visit: June 12-14,2012

Preparation Week: June 18, 2012

Onsite weeks: June 25, 2012; July 9, 2012; July 23, 2012

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

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.

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inspections has shown 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 three 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 June 4, 2012. 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 is those items that the team will need access to

during the preparation week in order to finalize the samples to be inspected. The third group

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. Additional requests by inspectors will 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.

During the onsite portion of our inspection, we request that you make available a conference

room large enough to accommodate the inspection team. In that conference room, please

make available a computer with access to a printer, your condition reporting database, and your

documentation database.

The lead inspector for this inspection is Gerond A. George. We understand that our licensing

engineer contact for this inspection is Jeff Siter. If there are any questions about the inspection

or the requested materials, please contact the lead inspector at (817) 200-1562 or via e-mail at

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

Papervl/ork 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.

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In accordance 10 of Practice," a copy

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

the Publicly Available Records (PARS) component system (ADAMS).

ADAMS is accessible from the NRC Web site at (the

Public Electronic Reading Room).

Sincerely,

Thomas R. Farnholtz, Chief

Engineering Branch 1

Division of Reactor Safety

Docket: 50-416

License: NPF-29

Enclosure:

Component Design Basis Inspection Document Request

cc w/enclosure:

Electronic Distribution for Grand Gulf Nuclear Station

Inspection Report: 05000416/2012008

Information Gathering Dates: June 12-14, 2012

On-site Inspection Dates: June 25-29, 2012

July 9-13,2012

July 23-27,2012

Inspection Procedure: IP 71111.21, "Component Design Basis

Inspection"

Lead Inspectorffeam Leader: Gerond George, Senior Reactor Inspector

817-200-1562

I. Information Requested Prior to the information Gathering Visit (June 12,

2012)

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

Region IV office in hard copy or electronic format (compact disc, preferred), in

care of Gerond George, by June 4, 2012 to facilitate the reduction in the items

to be selected for a final list during the preparation week June 18, 2012. The

inspection team will finalize the selected list during the prep week using the

additional documents requested in Section II of this enclosure. 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 vl/ho has knowledge of boiling water reactor technology.

If requested documents are large and 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. Provide a list of the top 500 cut-sets from your PRA.

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

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

in 1-4 events and

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

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, etc.).

7. 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. 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. Current management and engineering organizational charts.

15. Grand Gulf Nuclear Station IPE and IPEEE, if available electronically.

16. Mechanical piping drawings for:

Engineered safety features

Emergency core cooling systems

Emergency diesel generators

17. Electrical one-line drawings for:

Offsite powerlswitchyard supplies

Normal AC power systems

Emergency ACIDC power systems including

120VAC power, and

125VDC/24VDC safety class systems

18. of any common-cause failures of components in the last 3 years.

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19. copy the Basis Documents.

20. electronic copy of the System Health notebooks.

21. System Description Manuals with simplified drawings of plant systems.

II. Information Requested to be Available on First Day of Preparation Week

(June 18, 2012)

1. List of condition reports (corrective action documents) associated with each of

the selected components for the last 5 years.

2. The corrective maintenance history associated with each of the selected

components for the last 2 years.

3. Copies of calculations associated with each of the selected components (if not

previously provided), excluding data files. Please review the calculations and

also provide copies of reference material (such as drawings, engineering

requests, and vendor letters).

4. Copies of operability evaluations associated with each of the selected

components and plans for restoring operability, if applicable.

5. Copies of selected operator work-around evaluations associated with each of the

selected components and plans for resolution, if applicable.

6. Copies of any open temporary modifications associated with each of the selected

components, if applicable.

7. Trend data on the selected electrical/mechanical components' performance for

last 3 years (for example, pumps' performance including in-service testing, other

vibration monitoring, oil sample results, etc., as applicable).

8. A copy of any interna!/external self-assessments and associated corrective

action documents generated in preparation for the inspection.

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

10. List of motor operated valves (MOVs) in the program, design margin and risk

ranking.

11. List of air operated valves (AOVs) in the valve program, design and risk ranking.

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

13. Site top 10 issues list.

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

events in your PRA.

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15. Ust contacts pager or

m. Information Requested to be provided throughout the inspection.

1. Copies of any corrective action documents generated as a result the team's

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).

3. Reference materials (available electronically and as needed during all onsite

weeks):

4. General set of plant drawings

IPE/PRA report

Procurement documents for components selected

Plant procedures (normal, abnormal, emergency, surveillance, etc.)

Technical Specifications

Updated Final Safety Analysis Report

Vendor manuals

Inspector Contact Information:

Gerond A. George

Senior Reactor Inspector

(817) 200-1562

Mailing Address:

US NRC, Region !V

Attn: Gerond A. George

1600 East Lamar Blvd

Arlington, TX 76011

-4- Enclosure