ML033580460
| ML033580460 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 11/05/2002 |
| From: | Gody A NRC Region 4 |
| To: | Chamberlain D, Collins E, Marschall C, Troy Pruett, Sanborn G, Smith K, Laura Smith, Vasquez G NRC Region 4 |
| References | |
| FOIA/PA-2003-0358 | |
| Download: ML033580460 (12) | |
Text
Page
- ACT
- Attached Karla Smith - ACT:
rfPISrplo - ANO pre-serp is ANO Attached is pre-serpfor your review for your Tqyqw ....-.. -- -, Page
.4 From: "Anthony Gody i_ 4 To: "Michael Vasque24 Mzvnrc go 'Linda Smith <Ijs~nrc.gov>, 'Karla Smith"
<kdsl @nrc.gov>, "Gary Sanborn" <gfs nrc.gov>, 'Troy Pruett' <twp nrc.gov>, "Charlie Marschall"
<csm~nrc.gov>, "Elmo Collins" <eec~nrc.gov>, "Dwight Chamberlain" <ddc~nrc.gov>
Date: 11/5/02 9:12PM
Subject:
ACT: Attached is ANO pre-serp for your review Attached is a draft SERP Worksheet for your review and our use in the Pre-SERP. The Pre-SERP is next Tuesday at 8:30 in the DRS conference room. I'll be at HQ in the FP Phase 2 SDP workshop the rest of this week, but will get on my e-mail, occasionally. If you have any comments or concerns, I could work on them this weekend, so let me know. I'll also check my voice mail.
Charllie, Sometime during the workshop, I will discuss our position with John Hannon to make sure he's on board. I will also discuss the Susquehanna FP issues with Roy Fuhrmeister of RI (he'll also be at the workshop)
Troy, I will meet with Naeem IQBAL to discuss the licensee's questions concerning the FHA.
If anyone thinks of someone else I should touch base with while I'm at HQ, let me know.
Rebecca 4.. .. .. .
KarlSmih -Part.001 ..... Page Attached is a draft SERP Worksheet for your review and our use in the Pre-SERP. The Pre-SERP is next Tuesday at 8:30 in the DRS conference room. I'll be at HO in the FP Phase 2 SDP workshop the rest of this week, but will get on my e-mail, occasionally. If you have any comments or concerns, I could work on them this weekend, so let me know. Illi also check my voice mail. Charflie, Sometime during the workshop, I will discuss our position with John Hannon to make sure he's on board. I will also discuss the Susquehanna FP issues with Roy Fuhrmeister of RI (he'll also be at the workshop) Troy, I will meet with Naeemn IOBAL to discuss the licensee's questions concerning the FHA. It anyone thinks of someone else I should touch base with while I'm at HQ, let me know. Rebecca
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. I I Karla Smith - SERP Worksheet.wpd Pamc
. .- . .. . . . Issue Date: 04/30/02 E4-1 0609.01, Exhibit 4 SERP Worksheet for SDP-Related Findings SERP Date: December 10. 2002 Cornerstone Affected and Proposed Preliminary Results Licensee: Entergy Operations. Inc.
Facility/Location: Arkansas Nuclear One Docket No(s): 50-313 and 50-368 License No: DPR-51, NPF-6 Inspection Report No: 2001-06 Date of Exit Meeting: August 21, 2001 Issue Sponsor: Dwight Chamberlain Meeting Members:
Issue Sponsor: Dwight Chamberlain Technical Spokesperson(s):
Program Spokesperson:
OE Representative:
A. Brief Description of Issue ANO Unit 1 fire zones for the diesel generator corridor (Fire Zone 98J) and the north electrical switchgear (Fire Zone 99M) room did not meet separation requi for B. Statement of the Performance Deficiency As a method for complying with 10 CFR Part 50, Appendix R, Section III.G.2, the licensee credited the use of manual actions to remotely operate equipment necessary for achieving and maintaining hot shutdown, in lieu of providing protection (from fire damage) to the cables associated with that equipment. The licensee credited a symptom-based approach which relied on the operator's ability to detect each failure or mis-operation as it occurred and then erform manual actions as necess the effcs C. Significance Determination Basis
- 1. Reactor Inspection for IE, MS, B cornerstones
- a. Phase 1 screening logic, results and assumptions 4
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. - [.rl.Srnith - SERP Worksheet.wpo, Page 1%
- b. Phase 2 Risk Evaluation (when aor List dominant affected accident sequences by initiator, in order of contribution, and each sequence's numerical contribution.
List any pertinent assumptions under each initiator group (A risk analyst should review and verify that Phase 2 process was followed correctly and that the results are reasonable.}
Attach applicable Phase 2 Worksheets See Reference 2.
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IFIKarla Kala Smith -.';FPP Work-.;hPi--t-wnd Smith - E P -ae Wnkh-- --- . -.. .
Paue List any confirmatory checks made using licensee risk Information, SPAR model results, or other source of risk insights.
- 2. 'A Caiculratioh= -E--OT6-6f, re'v~isio -2,-"Ar4-O-'-TEfE =Valfues'
- 5. ANO Fire Hazards Analysis
- 6. ANO White Paper regarding ignition source frequencies
- 9. NRC Memorandum from E. W. Weiss to M. Reinhart, 'Fire Hazard Analysis for Fire Zone 98-J, Emergency Diesel Generator Corridor and Fire Zone 99-M, North Electrical Switchgear Room, Arkansas Nuclear One, Unit I (TAC No. MB2872)," dated May 28, 2002
- 10. NRC Memorandum from E. W. Weiss to M. Reinhart, "Supplemental Fire Modeling for Fire Zone 98-J, Emergency Diesel Generator Corridor and Fire Zone 99-M, North Electrical Switchgear Room, Arkansas Nuclear One, Unit 1 (TAC No. MB2872)," dated July 18, 2002
- 11. ANO Unit 1 and Unit 2 Updated Safety Analysis Reports Note any differences and an evaluation of their effect on this determination.
- Karla Smith - SERP Worksheet.wpd Pagi i
i
- c. Phase 3 Analysis (it necessary) Ii I
Concisely address each of the analysis aspects that follow.
PRA tools used:
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11 i
I I
I I
Affected sequences:
Influential assumptions:
Sensitivity of results to each influential assumption:
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. J Karla Smith - SERP Worksheet.wpd Pace Karla~~~~
Smth 'ER okhe~p . a"'ae Contributions of greatest uncertainty factors and impact on assumptions:
Previous similar analyses (if applicable): N/A Proposed preliminary or final color: Yellow.
- 2. All Other Inspection Findings (not IE, MS, B cornerstones)
Flowchart logic and full justification of assumptions used Proposed preliminary/final color D. Proposed Enforcement.
- a. Regulatory requirement not met.
10 CFR 50.48, Section (b) and 10 CFR Part 50, Appendix R, Section lll.G.2
- b. Proposed citation.
During an NRC triennial fire protection inspection conducted on June 11 - 15, 2001, at Arkansas Nuclear One, Unit 1, the following violation of NRC requirements was identified. Note that ANO-1 was licensed prior to January 1, 1979; therefore, was required to meet. 10 CFR Part 50, Appendix R, Section Il.G.
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Paqe 10 CFR 50.48, Section (b) states,
'Appendix R to this part establishes fire protection features required to satisfy Criterion 3 of Appendix A to this part with respect to certain generic issues for nuclear power plants licensed to operate before January 1, 1979. ... With respect to all other fire protection features covered by Appendix R, all nuclear power plants licensed to operate before January 1, 1979, must satisfy the applicable requirements of Appendix R to this part, including specifically the requirements of Sections Ill.G, lll.J, and //1.O."
10 CFR Part 50, Appendix R, Paragraph II.G. states,
- 1. "Fire protection features shall be provided for structures, systems, and components important to safe shutdown. These features shall be capable of limiting fire damage so that:
- a. One train of systems necessary to achieve and maintain hot shutdown conditions from either the control room or emergency control station(s) is free of fire damage; and
- b. Systems necessary to achieve and maintain cold shutdown from either the control room or emergency control station(s) can be repaired within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.
- 2. Except as provided for in paragraph G.3 of this section, where cables or equipment, including associated non-safety circuits that could prevent operation or cause maloperation due to hot shorts, open circuits, or shorts to ground, of redundant trains of systems necessary to achieve and maintain hot shutdown conditions are located within the same fire area outside of primary containment, one of the following means of ensuring that one of the redundant trains is free of fire damage shall be provided:
- a. Separation of cables and equipment and associated non-safety circuits of redundant trains by a fire barrier having a 3-hour rating.
Structural steel forming a part of or supporting such fire barriers shall be protected to provide fire resistance equivalent to that required of the barrier;
- b. Separation of cables and equipment and associated non-safety circuits of redundant trains by a horizontal distance of more than 20 feet with no intervening combustible or fire hazards. In addition, fire detectors and an automatic fire suppression system shall be installed in the fire area; or
- c. Enclosure of cable and equipment and associated non-safety circuits of one redundant train in a fire barrierhaving a 1-hour rating. In addition, fire detectors and an automatic fire
-: i Karla Smith - SERP Worksheet.wpd Pane Karla Smth - SER .
.okset Pn suppression system shall be installed in the fire area; ...
- 3. Alternative or dedicated shutdown capability and its associated circuits, independent of cables, systems or components in the area, room or zone under consideration, shall be provided:
- a. Where the protection of systems whose function is required for hot shutdown does not satisfy the requirement of paragraph G.2 of this section;..."
Contrary to the above, in two fire zones in Unit 1, the licensee failed to ensure that cables of redundant trains of systems necessary to achieve and maintain hot shutdown conditions were free of fire damage by one of the means specified in 10 CFR Part 50, Appendix R, Paragraph III.G.2.
- c. Historical precedent. None E. Determination of Follow-up Review (as needed)
For White findings propose whether HQs (NRR and/or OE) should review final determination letter before issuance. (For greater than White findings review and concurrence by NRR and OE is required as discussed in Section 4b.)
F. References
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Karla Smith-SERP Worksheet.Wpd Page F 1.
2.
NRC Inspection Report 50-313; 368/01-06 dated August 20, 2001 (ML012330501)
Task Interface Agreement - Request for Risk Determination of Fire Protection I
Findings at Arkansas Nuclear One, Unit 1 (01 TIA1 1), dated September 10, 2001 (MLOI 2530361)
- 6. ANO FIRE Hazards Analysis
- 7. ANO White Paper regarding Ignition Source Frequencies
- 10. NRC Memorandum from E. W. Weiss to M. Reinhart, "Fire Hazard Analysis for Fire Zone 98-J, Emergency Diesel Generator Corridor and Fire Zone 99-M, North Electrical Switchgear Room, Arkansas Nuclear One, Unit 1 (TAC No.
MB2872)," dated May 28, 2002 (ML012330501)
- 11. NRC Memorandum from E. W. Weiss to M. Reinhart, "Supplemental Fire Modeling for Fire Zone 98-J, Emergency Diesel Generator Corridor and Fire Zone 99-M, North Electrical Switchgear Room, Arkansas Nuclear One, Unit 1 (TAC No. MB2872)," dated July 18, 2002 (ML021990405)
- 12. ANO Unit 1 and Unit 2 Updated Safety Analysis Reports
- 13. NRC analyst human reliability screening analysis (RIV S:\DRS\PRA\_ANO\99M FIRE ANALYSIS\FIRE HRA.WPD)
- 14. NRC analyst qualitative assessment of remaining fire zones in Unit 1 and Unit 2 (RIV S:\DRS\PRA\ ANO\99M FIRE ANALYSIS\ANO MATRIX.WPD)
- 15. NRC analyst sensitivity analysis for Fire Zone 99-M (RIV S-\DRS\PRA\_ANO\99M FIRE ANALYSIS\SENSITIVITY ANALYSIS.WPD and RIV S:\DRS\PRA\_ANO\99M FIRE ANALYSIS\ANO SDP CALC DATA.XLS)
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Karla Smith - Mime.822 . Page
- l Received: from igate.nrc.gov by nrcgwia.nrc.gov; Tue. 05 Nov 2002 22:12:05 -0500 Received: from nrc.gov by smtp-gateway ESMTPce id WAA00085; Tue, 5 Nov 2002 22:09:59 -0500 (EST)
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From: 'Anthony Godyy"Ej _. a '
To: 'Michael Vasquez"Zgmv~nrc.gov>, 'Linda Smith' <Ijs~nrc.gov>,
'Karla Smith' <kdsl @nrc.gov>, 'Gary Sanborn' <gtsQ nrc.gov>,
'Troy Pruett' <twp~nrc.gov>, 'Charlie Marschall' <csminrc.gov>,
'Elmo Collins' <eec@nrc.gov>, 'Dwight Chamberlain' <ddc@nrc.gov>
Subject:
ACT: Attached is ANO pre-serp for your review Date: Tue. 5 Nov 2002 21:13:28 -0600 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_NextPart-000-0005-01 C28510.3001 F200" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 This is a multi-part message in MIME format.
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=--NextPart_001.0006..01C28510.3001F200 Content-Type: text/plain; charset="iso-8859-1' Content-Transfer-Encoding: quoted-printable Attached is a draft SERP Worksheet for your review and our use in the Pre-SERP. The Pre-SERP is next Tuesday at 8:30 in the DRS conference room. I'll be at HO in the FP Phase 2 SDP workshop the rest of this week, but will get on my e-mail, occasionally. If you have any comments or concerns, I could work on them this weekend, so let me know. I'll also check my voice mail.
Charllie, Sometime during the workshop, I will discuss our position with John Hannon to make sure he's on board. I will also discuss the Susquehanna FP issues with Roy Fuhrmeister of RI (he'll also be at the workshop)
Troy, I will meet with Naeem IQBAL to discuss the licensee's questions concerning the FHA. l If anyone thinks of someone else I should touch base with while I'm at HQ, let me know.
Rebecca
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Karla Smith - Mime.822 Pg
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<Dl1V>Attached is a draft SERP Worksheet f or your review and our use in the Pre-SERP. The Pre-SERP is next Tuesday at 8:30 in the DRS conference roomn. I'll be at HO in the FP Phase 2 SDP workshop the rest of this week, but will get on my e-mail, occasionally. If you have any comments or concerns, I could work on them this weekend, so let me know. I'll also check my voice mail. </DlV>
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<D1V><F0NT f ace=Arial size=2>Charllie, Sometime during the workshop.
I will discuss our position with John Hannon to make sure he's on board. I will also discuss the Susquehanna FP issues with Roy Fuhrmeister of RI (he'll also be at the workshop)<IFONT>.cDIlV>
<Dl1V><IFONT> </D1V>
<DlIV>If anyone thinks of somneone else I should touch base with while I'm at HO, let me know.4/FONT>4/DIV>
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