ML070730078: Difference between revisions
StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
StriderTol (talk | contribs) (StriderTol Bot change) |
||
| (2 intermediate revisions by the same user not shown) | |||
| Line 3: | Line 3: | ||
| issue date = 03/13/2007 | | issue date = 03/13/2007 | ||
| title = Notification of Sequoyah Nuclear Plant - Component Design Bases Inspection (CDBI) - NRC Inspection Report 05000327-07-006 and 05000328-07-006 and Information Request for CDBI | | title = Notification of Sequoyah Nuclear Plant - Component Design Bases Inspection (CDBI) - NRC Inspection Report 05000327-07-006 and 05000328-07-006 and Information Request for CDBI | ||
| author name = Cain L | | author name = Cain L | ||
| author affiliation = NRC/RGN-II/DRS/EB1 | | author affiliation = NRC/RGN-II/DRS/EB1 | ||
| addressee name = Singer K | | addressee name = Singer K | ||
| addressee affiliation = Tennessee Valley Authority | | addressee affiliation = Tennessee Valley Authority | ||
| docket = 05000327, 05000328 | | docket = 05000327, 05000328 | ||
| Line 14: | Line 14: | ||
| page count = 5 | | page count = 5 | ||
}} | }} | ||
See also: [[ | See also: [[see also::IR 05000327/2007006]] | ||
=Text= | =Text= | ||
{{#Wiki_filter:March 13, | {{#Wiki_filter:March 13, 2007 | ||
Executive Vice | Tennessee Valley Authority | ||
ATTN: | |||
Mr. Karl W. Singer | |||
Chief Nuclear Officer and | |||
Executive Vice President | |||
6A Lookout Place | |||
1101 Market Street | 1101 Market Street | ||
Chattanooga, TN 37402- | Chattanooga, TN 37402-2801 | ||
05000328/ | SUBJECT: | ||
The purpose of this letter is to notify you that the U.S. Nuclear Regulatory Commission (NRC)Region II staff will conduct a component design bases inspection at your Sequoyah Nuclear | NOTIFICATION OF SEQUOYAH NUCLEAR PLANT - COMPONENT DESIGN | ||
BASES INSPECTION - NRC INSPECTION REPORT 05000327/2007006 AND | |||
05000328/2007006 | |||
Dear Mr. Singer: | |||
The purpose of this letter is to notify you that the U.S. Nuclear Regulatory Commission (NRC) | |||
Region II staff will conduct a component design bases inspection at your Sequoyah Nuclear | |||
Plant during the weeks of June 4-8, 2007, June 18-22, 2007, and July 9-13, 2007. The | Plant during the weeks of June 4-8, 2007, June 18-22, 2007, and July 9-13, 2007. The | ||
inspection team will be led by Mr. Ryan Taylor, a Senior Reactor Inspector from the NRC's | inspection team will be led by Mr. Ryan Taylor, a Senior Reactor Inspector from the NRC's | ||
Region II Office. This inspection will be conducted in accordance with the baseline inspection | Region II Office. This inspection will be conducted in accordance with the baseline inspection | ||
procedure, Procedure 71111.21, Component Design Bases Inspection, issued June 22, 2006.The inspection will evaluate the capability of risk significant / low margin components to | procedure, Procedure 71111.21, Component Design Bases Inspection, issued June 22, 2006. | ||
selected operator actions, operating experience, and modifications. During a telephone conversation on March 13, 2007, Mr. R. Moore confirmed with Mr. R. Proffitt of your staff, arrangements for an information gathering site visit and the three- | The inspection will evaluate the capability of risk significant / low margin components to function | ||
week onsite inspection. The schedule is as follows: *Information gathering visit: Week of May 14-18, 2007*Onsite weeks: June 4-8, 2007, June 18-22, 2007, and July 9-13, 2007. The purpose of the information gathering visit is to meet with members of your staff to | as designed and support proper system operation. The inspection will also include a review of | ||
selected operator actions, operating experience, and modifications. | |||
During a telephone conversation on March 13, 2007, Mr. R. Moore confirmed with | |||
Mr. R. Proffitt of your staff, arrangements for an information gathering site visit and the three- | |||
week onsite inspection. The schedule is as follows: | |||
* | |||
Information gathering visit: Week of May 14-18, 2007 | |||
* | |||
Onsite weeks: June 4-8, 2007, June 18-22, 2007, and July 9-13, 2007. | |||
The purpose of the information gathering visit is to meet with members of your staff to identify | |||
risk-significant components and operator actions. Information and documentation needed to | |||
support the inspection will also be identified. Mr. Rudy Bernhard, a Region II Senior Reactor | support the inspection will also be identified. Mr. Rudy Bernhard, a Region II Senior Reactor | ||
Analyst, may accompany Mr. Taylor during the information gathering visit to review probabilistic | Analyst, may accompany Mr. Taylor during the information gathering visit to review probabilistic | ||
risk assessment data and identify risk significant components which will be examined during the | risk assessment data and identify risk significant components which will be examined during the | ||
inspection.The enclosure lists documents that will be needed prior to the information gathering visit. | inspection. | ||
this information to the Region II office by April 30, 2007. | The enclosure lists documents that will be needed prior to the information gathering visit. Please | ||
TVA | contact Mr. Taylor prior to preparing copies of the materials listed in the enclosure and provide | ||
this information to the Region II office by April 30, 2007. | |||
TVA | |||
2 | |||
The inspectors will try to minimize your administrative burden by specifically identifying only | |||
those documents required for the inspection preparation. | |||
During the information gathering visit, the team leader will also discuss the following inspection | |||
support administrative details: office space, supplemental documents requested to be made | |||
available to the team in the Region II office prior to the inspection preparation week of | available to the team in the Region II office prior to the inspection preparation week of | ||
May 28 - June 1, 2007; arrangements for site access; and the availability of knowledgeable | May 28 - June 1, 2007; arrangements for site access; and the availability of knowledgeable | ||
plant engineering and licensing personnel to serve as points of contact during the inspection.In accordance with 10 CFR 2.390 of the NRC's "Rules of Practice," a copy of this letter and | plant engineering and licensing personnel to serve as points of contact during the inspection. | ||
(ADAMS). ADAMS is accessible from the NRC Web | In accordance with 10 CFR 2.390 of the NRC's "Rules of Practice," a copy of this letter and its | ||
site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).Thank you for your cooperation in this matter. If you have any questions regarding | enclosure will be available electronically for public inspection in the NRC Public Document | ||
(404) 562-4876.Sincerely,/RA/L.M. Cain, Acting Branch | Room or from the Publicly Available Records (PARS) component of NRC's document system | ||
Division of Reactor | (ADAMS). ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading- | ||
cc w/encl: | rm/adams.html (the Public Electronic Reading Room). | ||
TVA | Thank you for your cooperation in this matter. If you have any questions regarding the | ||
information requested or the inspection, please contact Mr. Taylor at (404) 562-4568 or me at | |||
(404) 562-4876. | |||
Sincerely, | |||
/RA/ | |||
L.M. Cain, Acting Branch Chief | |||
Engineering Branch 1 | |||
Division of Reactor Safety | |||
Docket Nos.:50-327, 50-328 | |||
License Nos.:DPR-77, DPR-79 | |||
Enclosure: Information Request for Sequoyah Nuclear Plant | |||
Component Design Bases Inspection | |||
cc w/encl: | |||
TVA | |||
3 | |||
Ashok S. Bhatnagar | |||
Senior Vice President | |||
Nuclear Operations | Nuclear Operations | ||
Tennessee Valley Authority | Tennessee Valley Authority | ||
Electronic Mail | Electronic Mail Distribution | ||
Preston D. Swafford | |||
Senior Vice President | |||
Nuclear Support | Nuclear Support | ||
Tennessee Valley Authority | Tennessee Valley Authority | ||
Electronic Mail | Electronic Mail Distribution | ||
Larry S. Bryant, Vice President | |||
Nuclear Engineering & | |||
Technical Services | Technical Services | ||
Tennessee Valley Authority | Tennessee Valley Authority | ||
Electronic Mail | Electronic Mail Distribution | ||
Randy Douet | |||
Site Vice President | |||
Sequoyah Nuclear Plant | Sequoyah Nuclear Plant | ||
Electronic Mail | Electronic Mail Distribution | ||
General Counsel | |||
Tennessee Valley Authority | Tennessee Valley Authority | ||
Electronic Mail | Electronic Mail Distribution | ||
John C. Fornicola, General Manager | |||
Nuclear Assurance | |||
Tennessee Valley Authority | |||
Electronic Mail Distribution | |||
Glenn W. Morris, Manager | |||
Licensing and Industry Affairs | |||
Sequoyah Nuclear Plant | Sequoyah Nuclear Plant | ||
Tennessee Valley Authority | Tennessee Valley Authority | ||
Electronic Mail | Electronic Mail Distribution | ||
Beth A. Wetzel, Manager | |||
Corporate Nuclear Licensing and | |||
Industry Affairs | Industry Affairs | ||
Tennessee Valley Authority | Tennessee Valley Authority | ||
4X Blue Ridge | 4X Blue Ridge | ||
1101 Market Street | 1101 Market Street | ||
Chattanooga, TN 37402- | Chattanooga, TN 37402-2801 | ||
Robert H. Bryan, Jr., General Manager | |||
Licensing and Industry Affairs | |||
Sequoyah Nuclear Plant | Sequoyah Nuclear Plant | ||
Tennessee Valley Authority | Tennessee Valley Authority | ||
4X Blue Ridge | 4X Blue Ridge | ||
1101 Market Street | 1101 Market Street | ||
Chattanooga, TN 37402- | Chattanooga, TN 37402-2801 | ||
David A. Kulisek, Plant Manager | |||
Sequoyah Nuclear Plant | |||
Tennessee Valley Authority | Tennessee Valley Authority | ||
Electronic Mail | Electronic Mail Distribution | ||
Lawrence E. Nanney, Director | |||
TN Dept. of Environment & Conservation | |||
Division of Radiological Health | Division of Radiological Health | ||
Electronic Mail | Electronic Mail Distribution | ||
Chattanooga, TN 37402- | County Mayor | ||
Hamilton County Courthouse | |||
Chattanooga, TN 37402-2801 | |||
Ann Harris | |||
341 Swing Loop | |||
Rockwood, TN 37854 | Rockwood, TN 37854 | ||
James H. Bassham, | James H. Bassham, Director | ||
Tennessee Emergency Management | |||
Agency | Agency | ||
Electronic Mail Distribution | Electronic Mail Distribution | ||
_________________________ | |||
OFFICE | |||
RII:DRS | |||
RII:DRS | |||
RII:DRP | |||
RII:DRS | |||
SIGNATURE | |||
/RA/ | |||
/RA/ | |||
/RA/ | |||
/RA/ | |||
NAME | |||
RBernhard | |||
RMoore | |||
MWidmann | |||
RTaylor | |||
DATE | |||
3/13/2007 | |||
3/13/2007 | |||
3/13/2007 | |||
3/13/2007 | |||
E-MAIL COPY? | |||
YES | |||
NO YES | |||
NO YES | |||
NO YES | |||
NO YES | |||
NO YES | |||
NO YES | |||
NO | |||
Enclosure | |||
Please provide the information electronically in .pdf files, Excel, or other searchable format on | |||
CDROM. The CDROM should be indexed and hyperlinked to facilitate ease of use. Lists | |||
should contain enough information to be easily understood to someone who has a knowledge | should contain enough information to be easily understood to someone who has a knowledge | ||
of pressurized water reactor technology. | of pressurized water reactor technology. | ||
1.From your most-recent probabilistic safety analysis (PSA) excluding external events | 1. | ||
a.Two risk rankings of components from your site-specific probabilistic safety analysis(PSA): one sorted by Risk Achievement Worth (RAW), and the other sorted by | From your most-recent probabilistic safety analysis (PSA) excluding external events and | ||
Birnbaum Importance.b.A list of the top 500 cutsets.2.From your most-recent probabilistic safety analysis (PSA) including external events | fires: | ||
a.Two risk rankings of components from your site-specific probabilistic safety analysis(PSA): one sorted by Risk Achievement Worth (RAW), and the other sorted by | a. | ||
Birnbaum Importance.b.A list of the top 500 cutsets.. 3.Risk ranking of operator actions from your site specific PSA sorted by RAW. | Two risk rankings of components from your site-specific probabilistic safety analysis | ||
(PSA): one sorted by Risk Achievement Worth (RAW), and the other sorted by | |||
Birnbaum Importance. | |||
b. | |||
A list of the top 500 cutsets. | |||
2. | |||
From your most-recent probabilistic safety analysis (PSA) including external events and | |||
fires: | |||
a. | |||
Two risk rankings of components from your site-specific probabilistic safety analysis | |||
(PSA): one sorted by Risk Achievement Worth (RAW), and the other sorted by | |||
Birnbaum Importance. | |||
b. | |||
A list of the top 500 cutsets.. | |||
3. | |||
Risk ranking of operator actions from your site specific PSA sorted by RAW. Provide | |||
copies of your human reliability worksheets for these items.. | |||
4. | |||
Any pre-existing evaluation or list of components and 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, MOV risk-margin | required output, heat exchangers close to rated design heat removal, MOV risk-margin | ||
rankings, etc.).5.A list of station applicability evaluations/reviews performed and documented in the | rankings, etc.). | ||
5. | |||
A list of station applicability evaluations/reviews performed and documented in the station | |||
corrective action program in the past two years for industry events, critical equipment | |||
failures, and safety related equipment vulnerabilities [as communicated by NRC generic | failures, and safety related equipment vulnerabilities [as communicated by NRC generic | ||
communications, industry communications, 10 CFR part 21 notifications, etc.] 6.A list of safety related SSC design modifications implemented within the last two years,sorted by affected system.7.This item deleted. Corrective action lists will be requested after the component sample | communications, industry communications, 10 CFR part 21 notifications, etc.] | ||
.8.A list of common-cause failure of components that have occurred at Sequoyah and | 6. | ||
available) of your plans to address those reasons.12.List of equipment currently in RIS 05-020 (formerly GL 91-18) status. | A list of safety related SSC design modifications implemented within the last two years, | ||
13.List of equipment currently in MR (a)(1) status. | sorted by affected system. | ||
7. | |||
This item deleted. Corrective action lists will be requested after the component sample is | |||
determined. | |||
8. | |||
A list of common-cause failure of components that have occurred at Sequoyah and have | |||
been identified within the last five years. | |||
9. | |||
A list of operability evaluations completed within the last two years, sorted by associated | |||
component or system. | |||
10. Contact information for a person to discuss PRA information prior to the information | |||
gathering trip: name, title, phone number, and e-mail address | |||
11. List of equipment currently on the sites Station Equipment Reliability Issues List, including | |||
a description of the reason(s) why each component is on that list and summaries (if | |||
available) of your plans to address those reasons. | |||
12. List of equipment currently in RIS 05-020 (formerly GL 91-18) status. | |||
13. List of equipment currently in MR (a)(1) status. | |||
}} | }} | ||
Latest revision as of 02:43, 15 January 2025
| ML070730078 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah |
| Issue date: | 03/13/2007 |
| From: | Cain L NRC/RGN-II/DRS/EB1 |
| To: | Singer K Tennessee Valley Authority |
| References | |
| IR-07-006 | |
| Download: ML070730078 (5) | |
See also: IR 05000327/2007006
Text
March 13, 2007
Tennessee Valley Authority
ATTN:
Mr. Karl W. Singer
Chief Nuclear Officer and
Executive Vice President
6A Lookout Place
1101 Market Street
Chattanooga, TN 37402-2801
SUBJECT:
NOTIFICATION OF SEQUOYAH NUCLEAR PLANT - COMPONENT DESIGN
BASES INSPECTION - NRC INSPECTION REPORT 05000327/2007006 AND
Dear Mr. Singer:
The purpose of this letter is to notify you that the U.S. Nuclear Regulatory Commission (NRC)
Region II staff will conduct a component design bases inspection at your Sequoyah Nuclear
Plant during the weeks of June 4-8, 2007, June 18-22, 2007, and July 9-13, 2007. The
inspection team will be led by Mr. Ryan Taylor, a Senior Reactor Inspector from the NRC's
Region II Office. This inspection will be conducted in accordance with the baseline inspection
procedure, Procedure 71111.21, Component Design Bases Inspection, issued June 22, 2006.
The inspection will evaluate the capability of risk significant / low margin components to function
as designed and support proper system operation. The inspection will also include a review of
selected operator actions, operating experience, and modifications.
During a telephone conversation on March 13, 2007, Mr. R. Moore confirmed with
Mr. R. Proffitt of your staff, arrangements for an information gathering site visit and the three-
week onsite inspection. The schedule is as follows:
Information gathering visit: Week of May 14-18, 2007
Onsite weeks: June 4-8, 2007, June 18-22, 2007, and July 9-13, 2007.
The purpose of the information gathering visit is to meet with members of your staff to identify
risk-significant components and operator actions. Information and documentation needed to
support the inspection will also be identified. Mr. Rudy Bernhard, a Region II Senior Reactor
Analyst, may accompany Mr. Taylor during the information gathering visit to review probabilistic
risk assessment data and identify risk significant components which will be examined during the
inspection.
The enclosure lists documents that will be needed prior to the information gathering visit. Please
contact Mr. Taylor prior to preparing copies of the materials listed in the enclosure and provide
this information to the Region II office by April 30, 2007.
2
The inspectors will try to minimize your administrative burden by specifically identifying only
those documents required for the inspection preparation.
During the information gathering visit, the team leader will also discuss the following inspection
support administrative details: office space, supplemental documents requested to be made
available to the team in the Region II office prior to the inspection preparation week of
May 28 - June 1, 2007; arrangements for site access; and the availability of knowledgeable
plant engineering and licensing personnel to serve as points of contact during the inspection.
In accordance with 10 CFR 2.390 of the NRC's "Rules of Practice," a copy of this letter and its
enclosure will be available electronically for public inspection in the NRC Public Document
Room or from the Publicly Available Records (PARS) component of NRC's 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).
Thank you for your cooperation in this matter. If you have any questions regarding the
information requested or the inspection, please contact Mr. Taylor at (404) 562-4568 or me at
(404) 562-4876.
Sincerely,
/RA/
L.M. Cain, Acting Branch Chief
Engineering Branch 1
Division of Reactor Safety
Docket Nos.:50-327, 50-328
License Nos.:DPR-77, DPR-79
Enclosure: Information Request for Sequoyah Nuclear Plant
Component Design Bases Inspection
cc w/encl:
3
Ashok S. Bhatnagar
Senior Vice President
Nuclear Operations
Tennessee Valley Authority
Electronic Mail Distribution
Preston D. Swafford
Senior Vice President
Nuclear Support
Tennessee Valley Authority
Electronic Mail Distribution
Larry S. Bryant, Vice President
Nuclear Engineering &
Technical Services
Tennessee Valley Authority
Electronic Mail Distribution
Randy Douet
Site Vice President
Sequoyah Nuclear Plant
Electronic Mail Distribution
General Counsel
Tennessee Valley Authority
Electronic Mail Distribution
John C. Fornicola, General Manager
Nuclear Assurance
Tennessee Valley Authority
Electronic Mail Distribution
Glenn W. Morris, Manager
Licensing and Industry Affairs
Sequoyah Nuclear Plant
Tennessee Valley Authority
Electronic Mail Distribution
Beth A. Wetzel, Manager
Corporate Nuclear Licensing and
Industry Affairs
Tennessee Valley Authority
4X Blue Ridge
1101 Market Street
Chattanooga, TN 37402-2801
Robert H. Bryan, Jr., General Manager
Licensing and Industry Affairs
Sequoyah Nuclear Plant
Tennessee Valley Authority
4X Blue Ridge
1101 Market Street
Chattanooga, TN 37402-2801
David A. Kulisek, Plant Manager
Sequoyah Nuclear Plant
Tennessee Valley Authority
Electronic Mail Distribution
Lawrence E. Nanney, Director
TN Dept. of Environment & Conservation
Division of Radiological Health
Electronic Mail Distribution
County Mayor
Hamilton County Courthouse
Chattanooga, TN 37402-2801
Ann Harris
341 Swing Loop
Rockwood, TN 37854
James H. Bassham, Director
Tennessee Emergency Management
Agency
Electronic Mail Distribution
_________________________
OFFICE
RII:DRS
RII:DRS
RII:DRP
RII:DRS
SIGNATURE
/RA/
/RA/
/RA/
/RA/
NAME
RBernhard
RMoore
MWidmann
RTaylor
DATE
3/13/2007
3/13/2007
3/13/2007
3/13/2007
E-MAIL COPY?
YES
NO YES
NO YES
NO YES
NO YES
NO YES
NO YES
NO
Enclosure
Please provide the information electronically in .pdf files, Excel, or other searchable format on
CDROM. The CDROM should be indexed and hyperlinked to facilitate ease of use. Lists
should contain enough information to be easily understood to someone who has a knowledge
of pressurized water reactor technology.
1.
From your most-recent probabilistic safety analysis (PSA) excluding external events and
fires:
a.
Two risk rankings of components from your site-specific probabilistic safety analysis
(PSA): one sorted by Risk Achievement Worth (RAW), and the other sorted by
Birnbaum Importance.
b.
A list of the top 500 cutsets.
2.
From your most-recent probabilistic safety analysis (PSA) including external events and
fires:
a.
Two risk rankings of components from your site-specific probabilistic safety analysis
(PSA): one sorted by Risk Achievement Worth (RAW), and the other sorted by
Birnbaum Importance.
b.
A list of the top 500 cutsets..
3.
Risk ranking of operator actions from your site specific PSA sorted by RAW. Provide
copies of your human reliability worksheets for these items..
4.
Any pre-existing evaluation or list of components and 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, MOV risk-margin
rankings, etc.).
5.
A list of station applicability evaluations/reviews performed and documented in the station
corrective action program in the past two years for industry events, critical equipment
failures, and safety related equipment vulnerabilities [as communicated by NRC generic
communications, industry communications, 10 CFR part 21 notifications, etc.]
6.
A list of safety related SSC design modifications implemented within the last two years,
sorted by affected system.
7.
This item deleted. Corrective action lists will be requested after the component sample is
determined.
8.
A list of common-cause failure of components that have occurred at Sequoyah and have
been identified within the last five years.
9.
A list of operability evaluations completed within the last two years, sorted by associated
component or system.
10. Contact information for a person to discuss PRA information prior to the information
gathering trip: name, title, phone number, and e-mail address
11. List of equipment currently on the sites Station Equipment Reliability Issues List, including
a description of the reason(s) why each component is on that list and summaries (if
available) of your plans to address those reasons.
12. List of equipment currently in RIS 05-020 (formerly GL 91-18) status.
13. List of equipment currently in MR (a)(1) status.