ML11195A090
| ML11195A090 | |
| Person / Time | |
|---|---|
| Site: | River Bend  |
| Issue date: | 07/14/2011 |
| From: | Thomas Farnholtz Region 4 Engineering Branch 1 |
| To: | Mike Perito Entergy Operations |
| References | |
| Download: ML11195A090 (8) | |
See also: IR 05000458/2011008
Text
July 14, 2011
Michael Perito
Site Vice President
Entergy Operations, Inc.
River Bend Station
5485 US Highway 61N
St. Francisville, LA 70775
SUBJECT:
RIVER BEND STATION - INITIAL INFORMATION REQUEST FOR NRC
TRIENNIAL BASELINE COMPONENT DESIGN BASES INSPECTION NRC
INSPECTION REPORT 05000458/2011008
Dear Mr. Perito:
On September 26, 2011, reactor inspectors from the U.S. Nuclear Regulatory Commissions
(NRC) Region IV office will begin a triennial baseline Component Design Bases Inspection at
the River Bend Station. A six-person team will perform this inspection using NRC Inspection
Procedure 71111.21, "Component Design Bases Inspection."
The inspection focuses on components and operator actions issues 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
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: September 6-9, 2011
Preparation Week: September 19-23, 2011
Onsite weeks: September 26-30 and October 17-28, 2011
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.
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
UNITED STATES
NUCLEAR REGULATORY COMMISSION
REGION IV
612 E. LAMAR BLVD., SUITE 400
ARLINGTON, TEXAS 76011-4005
Entergy Operations, Inc.
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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 August 29, 2011. 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.
The lead inspector for this inspection is Gerond A. George. We understand that our licensing
engineer contact for this inspection is Kristi Huffstatler. If there are any questions about the
inspection or the requested materials, please contact the lead inspector at (817) 276-6562 or via
e-mail at Gerond.George@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 NRC's "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).
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 A. Farnholtz, Chief
Engineering Branch 1
Division of Reactor Safety
Docket: 50-458
Entergy Operations, Inc.
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License: NPF-47
Enclosure:
Information Request for River Bend Station Component Design Basis Inspection
cc w/enclosure:
Distribution via listserv for River Bend Station
Entergy Operations, Inc.
- 4 -
Electronic distribution by RIV:
Regional Administrator (Elmo.Collins@nrc.gov )
Deputy Regional Administrator (Art.Howell@nrc.gov )
DRP Director (Kriss.Kennedy@nrc.gov )
DRP Deputy Director (Troy.Pruett@nrc.gov)
DRS Director (Anton.Vegel@nrc.gov )
DRS Deputy Director (Robert.Caldwell@nrc.gov )
Senior Resident Inspector (Grant.Larkin@nrc.gov )
Branch Chief, DRP/C (Vincent.Gaddy@nrc.gov )
Resident Inspector (Andy.Barrett@nrc.gov )
RBS Administrative Assistant (Lisa.Day@nrc.gov )
Senior Project Engineer, DRP/C (Bob.Hagar@nrc.gov )
Project Engineer, DRP/C (Rayomand.Kumana@nrc.gov )
Public Affairs Officer (Victor.Dricks@nrc.gov )
Public Affairs Officer (Lara.Uselding@nrc.gov )
Project Manager (Alan.Wang@nrc.gov )
Branch Chief, DRS/TSB (Michael.Hay@nrc.gov )
RITS Coordinator (Marisa.Herrera@nrc.gov )
Regional Counsel (Karla.Fuller@nrc.gov )
Congressional Affairs Officer (Jenny.Weil@nrc.gov )
OEMail Resource
NRR CDBI Coordinator (Donald.Norkin@nrc.gov )
R:\\
ADAMS: No Yes
SUNSI Review Complete
Reviewer Initials: GAG
Publicly Available
Non-Sensitive
Category A.
Non-publicly Available
Sensitive
KEYWORD:
DRS/EB1/SRI
DRS/EB1/BC
GGeorge
TFarnholtz
/RA/
/RA/
7/12/11
7/13/11
OFFICIAL RECORD COPY T=Telephone E=E-mail F=Fax
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Enclosure
INFORMATION REQUEST FOR RIVER BEND STATION COMPONENT DESIGN BASES
INSPECTION (CDBI)
Inspection Report: 05000298/2011008
Information Gathering Dates:
September 6-9, 2011
On-site Inspection Dates:
September 26-30 and October 18-28, 2011
Inspection Procedure:
IP 71111.21, "Component Design Bases
Inspection"
Lead Inspector/Team Leader:
817-276-6562
Gerond.George@nrc.gov
I.
Information Requested Prior to the information Gathering Visit (August 29, 2011):
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 A.
George, by August 29, 2011, to facilitate the reduction in the items to be selected for a
final list during the preparation week of September 19, 2011. 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 who 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.
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.
5.
If you have an external events or fire PSA model, provide the information
requested in items 1-4 for external events and fire.
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Enclosure
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. River Bend Station IPEEE, if available electronically.
16. Mechanical piping drawings for:
Engineered safety features
Emergency core cooling systems
17. Electrical one-line drawings for:
Offsite power/switchyard supplies
Normal AC power systems
Emergency AC/DC power systems including
120VAC power, and
125VDC/24VDC safety class systems
18. List of any common-cause failures of components in the last 3 years.
19. An electronic copy of the Design Bases Documents.
20. An electronic copy of the System Health notebooks.
21. System Description Manuals with simplified drawings of plant systems.
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Enclosure
II.
Information Requested to be Available on First Day of Preparation Week
(September 19, 2011)
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 internal/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.
15.
List of licensee contacts for the inspection team with pager or phone numbers.
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Enclosure
III.
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).
3.
Reference materials (available electronically and as needed during all onsite
weeks):
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) 276-6562
Gerond.George@nrc.gov
Mailing Address:
US NRC, Region IV
Attn: Gerond A. George
612 East Lamar Blvd, Ste 400
Arlington, TX 76011