ML13142A227

Summary of Public Meeting to Discuss Results of Augmented Inspection at Arkansas Nuclear One

ML13142A227
Person / Time
Site:	Arkansas Nuclear
Issue date:	05/22/2013
From:	Allen D NRC/RGN-IV/DRP
To:	Jeremy G. Browning Entergy Operations
References
Download: ML13142A227 (8)

Text

UNITE D S TATE S NUC LEAR RE GULATOR Y C OMMI S SI ON R E G IO N I V 1600 EAST LAMAR BLVD AR L I NGTON , TEXAS 7 601 1- 4511 May 22, 2013 Jeremy Browning, Site Vice President Arkansas Nuclear One Entergy Operations, Inc.

1448 SR 333 Russellville, AR 72802-0967

SUMMARY

OF PUBLIC MEETING TO DISCUSS RESULTS OF AUGMENTED INSPECTION AT ARKANSAS NUCLEAR ONE

Dear Mr. Browning:

On May 9, 2013, members of the NRC staff met with representatives of Arkansas Nuclear One, Units 1 and 2, in Russellville, AR, to discuss the results of the Augmented Inspection conducted at Arkansas Nuclear One. The Augmented Inspection Team was chartered to review the circumstances surrounding an industrial accident which caused a loss of offsite power to Unit 1 and an automatic shutdown of Unit 2 on March 31, 2013. A copy of the NRCs presentation is included as Enclosure 1.

In accordance with 10 CFR 2.390 of the NRCs Rules of Practice, a copy of this letter and its enclosure will be available electronically for public inspection in the NRCs Public Document Room or from the Publicly Available Records (PARS) component of the NRCs Agency-wide Documents Access and Management 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/

Donald B. Allen, Chief Project Branch E Division of Reactor Projects Docket Nos.: 50-313, 50-368 License Nos.: DPR-51, NPF-6

Enclosures:

1. Presentation Slides

J. Browning Electronic Distribution by RIV:

Public Meeting Notice Site (PMNS.Resource@nrc.gov)

Regional Administrator (Art.Howell@nrc.gov)

Acting Deputy Regional Administrator (Robert.Lewis@nrc.gov)

DRP Director (Kriss.Kennedy@nrc.gov)

Acting DRP Deputy Director (Michael.Scott@nrc.gov)

DRS Director (Tom.Blount@nrc.gov)

Acting DRS Deputy Director (Jeff.Clark@nrc.gov)

Senior Resident Inspector (Alfred.Sanchez@nrc.gov)

Resident Inspector (William.Schaup@nrc.gov)

Resident Inspector (Abin.Fairbanks@nrc.gov)

Branch Chief, DRP/E (Don.Allen@nrc.gov)

Senior Project Engineer, DRP/E (Ray.Azua@nrc.gov)

Project Engineer (Jim.Melfi@nrc.gov)

Project Engineer (Dan.Bradley@nrc.gov)

Branch Chief, DRS/EB2 (Geoffrey.Miller@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 (Ray.Kellar@nrc.gov)

RITS Coordinator (Marisa.Herrera@nrc.gov)

Regional Counsel (Karla.Fuller@nrc.gov)

Congressional Affairs Officer (Jenny.Weil@nrc.gov)

OEMail Resource ROPreports RIV/ETA: OEDO (Doug.Huyck@nrc.gov)

File located: R:\_REACTORS\_ANO\2013\ANO AIT Exit Meeting Summary 5-9-13 ADAMS: ML13142A227 SUNSI Rev Compl. Yes No ADAMS Yes No Reviewer Initials DSB Publicly Avail Yes No Sensitive Yes No Sens. Type Initials DSB RIV/SPE:DRP/E C: DRS/EB2 C:DRP/E RAzua GMiller DAllen

/RA/ /RA/ /RA/

5/15/13 5/16/13 5/21/13 OFFICIAL RECORD COPY T=Telephone E=E-mail F=Fax

NRC Augmented Inspection Team Exit Meeting Arkansas Nuclear One Nuclear Regulatory Commission - Region IV Russellville, AR May 9, 2013 1

Agenda

• Introduction

• Purpose of an AIT

• Event Description

• Inspection Results

• Licensee Comments

• NRC Closing Remarks

• Question and Answer 2

Enclosure

Augmented Inspection Team

• Fact-finding inspection

• Identify issues for follow up inspection

• Identify generic safety concerns 3

March 31 Dropped Stator Event

• Unit 1 RFO Stator Replacement

• Structural Failure of Lifting Rig

• Loss of Offsite Power to Unit 1

• Unit 2 Reactor Trip

• Partial Power Loss/Breaker Failure on Unit 2

• Notice of Unusual Event 4

Inspection Results

• Reactor plant safety systems responded as designed

• Entergy took appropriate actions to recover plant equipment on Units 1 and 2 and has initiated an extensive root cause evaluation effort 5

Summary of Charter Items

• Event Chronology

• Operator Response

- Control of Temporary Modification

• Equipment Impact

- Structural Impact to Units 1 and 2 6

Summary of Charter Items

• Plant Response to the Event

- Control of Steam Generator Nozzle Dams

- Main Feedwater Regulating Valve Maintenance

- Flood Barrier Effectiveness

• Compensatory Measures

- Compensatory Actions for Fire Suppression

• Event Classification and Reporting

- Timeliness of Emergency Declaration 7

Summary of Charter Items

• Heavy Lift Preparations

- Shutdown Reactor Equipment Risk

- Implementation of Material Control Procedure

• Status of Cause Evaluation Efforts

- Review of Causes/Corrective Actions

• Operating Experience 8

Licensee Response and Remarks 9

Contacting the NRC

• Report an emergency

- (301) 816-5100 (call collect)

• Report a safety concern

- (800) 695-7403

- Allegation@nrc.gov

• General information or questions

- www.nrc.gov; Select What We Do for Public Affairs

- Victor Dricks, (817) 200-1128 10 Electronic Distribution

• To receive a summary of this meeting and begin receiving other plant-specific e-mail distributions, subscribe to the Operating Reactor Correspondence electronic distribution via http://www.nrc.gov/public-involve/listserver/plants-by-region.html.

• To discontinue receiving electronic distribution, you may unsubscribe at any time by visiting the same web address above.

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