ML113490450
| ML113490450 | |
| Person / Time | |
|---|---|
| Site: | Cooper  |
| Issue date: | 12/15/2011 |
| From: | Thomas Farnholtz Region 4 Engineering Branch 1 |
| To: | O'Grady B Nebraska Public Power District (NPPD) |
| References | |
| IR-12-007 | |
| Download: ML113490450 (8) | |
See also: IR 05000298/2012007
Text
UNITE D S TATE S
NUC LEAR RE GULATOR Y C OMMI S SI ON
RE G IO N I V
1600 EAST LAMAR BLVD
AR L INGTON , TEXAS 7 60 11 - 4511
December 15, 2011
Brian J. OGrady, Vice President-Nuclear
and Chief Nuclear Officer
Nebraska Public Power - Cooper
Nuclear Station
72676 648A Avenue
Brownville, NE 68321
SUBJECT: COOPER NUCLEAR STATION- INITIAL INFORMATION REQUEST FOR NRC
TRIENNIAL BASELINE COMPONENT DESIGN BASES INSPECTION NRC
INSPECTION REPORT 05000298/2012007
Dear Mr. OGrady:
On March 5, 2012, the NRC will begin a triennial baseline Component Design Bases Inspection
at Cooper Nuclear 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 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 five inspectors will focus on engineering and
one on operations. The current inspection schedule is as follows:
Onsite information gathering visit: Week of February 20, 2012
Preparation Week: February 27 through March 2, 2012
Onsite weeks: March 5-9, 2012
March 19-23, 2012, and
April 2-6, 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
Nebraska Public Power District
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 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 February 7, 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.
The lead inspector for this inspection is Ronald A. Kopriva. We understand that our licensing
engineer contact for this inspection is James Flaherty. If there are any questions about the
inspection or the requested materials, please contact the lead inspector at (817) 200-1104 or via
e-mail at ron.kopriva@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).
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Nebraska Public Power District
Sincerely,
/RA/
Thomas Farnholtz, Chief
Engineering Branch 1
Division of Reactor Safety
Docket: 50-298
License: DRP-46
Enclosure:
Component Design Basis Inspection
Document Request
Distribution made electronically
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Nebraska Public Power District
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 (Tom.Blount@nrc.gov )
Senior Resident Inspector (Jeffrey.Josey@nrc.gov )
Resident Inspector (Michael.Chambers@nrc.gov )
Branch Chief, DRP/C (Vincent.Gaddy@nrc.gov)
Senior Project Engineer, DRP/C (Bob.Hagar@nrc.gov )
Project Engineer, DRP/C (Jonathan.Braisted@nrc.gov )
Project Engineer, DRP/C (Rayomand.Kumana@nrc.gov )
CNS Administrative Assistant (Amy.Elam@nrc.gov )
Public Affairs Officer (Victor.Dricks@nrc.gov)
Public Affairs Officer (Lara.Uselding@nrc.gov )
Project Manager (Lynnea.Wilkins@nrc.gov )
Acting Branch Chief, DRS/TSB (Dale.Powers@nrc.gov )
RITS Coordinator (Marisa.Herrera@nrc.gov )
Regional Counsel (Karla.Fuller@nrc.gov )
Congressional Affairs Officer (Jenny.Weil@nrc.gov )
OEMail Resource
Inspection Reports/MidCycle and EOC Letters to the following:
ROPreports
Only inspection reports to the following:
RIV/ETA: OEDO (Mark.Franke@nrc.gov )
DRS/TSB STA (Dale.Powers@nrc.gov )
NRR CDBI Coordinator (Donald.Norkin@nrc.gov )
SUNSI Review Completed: Yes ADAMS: Yes Initials: ______
Publicly Available Non-Sensitive
MLXXXX
RIV:DRS/EB1/SRI BC/EB1
R. Kopriva T. Farnholtz
/RA/ /RA/
12/15/2011 12/15/2011
OFFICIAL RECORD COPY T=Telephone E=E-mail F=Fax
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INFORMATION REQUEST FOR COOPER NUCLEAR STATION COMPONENT
DESIGN BASES (CDBI) INSPECTION
Inspection Report: 05000298/2012007
Information Gathering Dates: February 21-24, 2012
On-site Inspection Dates: March 5-9, 2012
March 19-23, 2012
April 2-6, 2012
Inspection Procedure: IP 71111.21, "Component Design Bases
Inspection"
Lead Inspector/Team Lead: Ronald A. Kopriva
817-200-1104
Ron.kopriva@nrc.gov
I. Information Requested Prior to the information Gathering Visit (February 21-24,
2012)
The following information (Section I of this enclosure) should be sent to the
Region IV office in hard copy or electronic format (ims.certrec.com or compact
disc, preferred), in care of Ronald A. Kopriva, by February 7, 2012, to facilitate
the reduction in the items to be selected for a final list during the preparation
week of February 27 through March 2, 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
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.
-1- Enclosure
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.
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. Cooper Nuclear Plant 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
-2- Enclosure
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
II. Information Requested to be Available during the Preparation Week (February
27, 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 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.
-3- Enclosure
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.
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:
Ronald. A Kopriva - Team Lead
Senior Reactor Inspector
(817) 200-1104
Ron.kopriva@nrc.gov
Mailing Address:
US NRC, Region IV
Attn: Ronald A. Kopriva
1600 East Lamar Blvd.
Arlington, TX 76011
-4- Enclosure