ML11356A344
| ML11356A344 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 12/22/2011 |
| From: | Thomas Farnholtz Region 4 Engineering Branch 1 |
| To: | Schwarz C Entergy Operations |
| George G | |
| References | |
| IR-12-007 | |
| Download: ML11356A344 (8) | |
See also: IR 05000313/2012007
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 22, 2011
Christopher J. Schwarz, Site Vice President
Arkansas Nuclear One
Entergy Operations, Inc.
1448 SR 333
Russellville, AR 72802-0967
SUBJECT: ARKANSAS NUCLEAR ONE - INITIAL INFORMATION REQUEST FOR
NRC TRIENNIAL BASELINE COMPONENT DESIGN BASES
INSPECTION (NRC INSPECTION REPORTS 05000313/2012007 AND
Dear Mr. Schwarz:
On February 13, 2012, the NRC will begin a triennial baseline Component Design Bases
Inspection at Arkansas Nuclear One facility, Units 1 and 2. A seven person team will
perform this inspection using NRC Inspection Procedure 71111.21, "Component Design
Bases Inspection."
The inspection focuses on systems and components 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.
Additionally, 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 three weeks of onsite inspection by the team. The inspection
will consist of five NRC inspectors and two contractors, of which five will focus on
engineering and one on operations. The current inspection schedule is as follows:
Onsite information gathering visit: Week of January 30, 2012
Preparation Week: February 6, 2012
Onsite weeks: February 13, 2012; February 27, 2012; March 12, 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.
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
Entergy Operations, Inc. -2-
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 January 16, 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 Gerond A. George. 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 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,
Gerond George /RA/ for
Thomas Farnholtz, Chief
Engineering Branch 1
Division of Reactor Safety
Docket: 50-313, 50-368
Entergy Operations, Inc. -3-
Enclosure:
Component Design Basis Inspection Document Request
cc w/enclosure:
Distribution List Serv for Arkansas Nuclear One
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 (Tom.Blount@nrc.gov)
Senior Resident Inspector (Alfred.Sanchez@nrc.gov)
Resident Inspector (Jeff.Rotton@nrc.gov)
Resident Inspector (William.Schaup@nrc.gov)
Branch Chief, DRP/E (James.Drake@nrc.gov)
Senior Project Engineer, DRP/E (Ray.Azua@nrc.gov)
Project Engineer, DRP/E (Jim.Melfi@nrc.gov)
Project Engineer, DRP/E (Chris.Smith@nrc.gov)
Project Engineer (Daniel.Bradley@nrc.gov)
ANO Administrative Assistant (Gloria.Hatfield@nrc.gov)
Public Affairs Officer (Victor.Dricks@nrc.gov)
Public Affairs Officer (Lara.Uselding@nrc.gov)
Project Manager (Kaly.Kalyanam@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
W. Cartwright, NRR CDBI Coordinator (William.Cartwright@nrc.gov)
R:\REPORTS\ANO\ANO2012007-RFI-GAG.docx ADAMS ML11356A344
ADAMS: No 5 Yes 5 SUNSI Review Complete Reviewer Initials: GAG
5 Publicly Available 5 Non-Sensitive
. Non-publicly Available Sensitive
SRI:DRS:EB1 C:DRS:EB1
GAGeorge TFarnholtz
/RA/ /RA/G.George for
12/22/2011 12/22/2011
OFFICIAL RECORD COPY T=Telephone E=E-mail F=Fax
INFORMATION REQUEST FOR ARKANSAS NUCLEAR ONE COMPONENT DESIGN
BASES (CDBI) INSPECTION
Inspection Report: 05000313/2012007
Information Gathering Dates: January 23, 2012
On-site Inspection Dates: February 13, 2012; February 27, 2012;
March 12, 2012
Inspection Procedure: IP 71111.21, "Component Design Bases
Inspection"
Lead Inspector/Team Leader: Gerond A George
817-200-1562
Gerond.George@nrc.gov
I. Information Requested Prior to the information Gathering Visit (January 16,
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 A. George, by January 16, 2012 to facilitate the reduction in the
items to be selected for a final list during the preparation week February 6, 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 pressurized 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.
-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, (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. ANO Units 1 and 2 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.
-2- Enclosure
21. System Description Manuals with simplified drawings of plant systems
II. Information Requested to be Available on First Day of Preparation Week
(February 6, 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.
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.
-3- Enclosure
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:
Gerond A. George
Senior Reactor Inspector
(817) 200-1562
Gerond.George@nrc.gov
Mailing Address:
US NRC, Region IV
Attn: Gerond George
1600 East Lamar Blvd
Arlington, TX 76011
-4- Enclosure