ML101250591

Assessment Followup Ltr. - Callaway Plant

ML101250591
Person / Time
Site:	Callaway
Issue date:	05/05/2010
From:	Chamberlain D NRC/RGN-IV/DRP
To:	Heflin A Union Electric Co
References
Download: ML101250591 (5)

Text

UNITED STATES NU C LE AR RE G ULATO RY C O M M I S S I O N R E GI ON I V 612 EAST LAMAR BLVD , SU ITE 400 AR LIN GTON , TEXAS 76011-4125 May 5, 2010 Mr. Adam C. Heflin, Senior Vice President and Chief Nuclear Officer Union Electric Company P.O. Box 620 Fulton, MO 65251

SUBJECT:

ASSESSMENT FOLLOWUP LETTER - CALLAWAY PLANT

Dear Mr. Heflin:

On May 3, 2010, the NRC staff completed a quarterly review of Callaway Plant. The assessment evaluated the performance indicators and inspection results for the first quarter of calendar year 2010. The purpose of this letter is to inform you of your safety performance during this period and our plans for future inspections at your facility. This letter supplements, but does not supersede, our annual assessment letter issued on March 3, 2010.

Overall, Callaway operated in a manner that preserved the publics health and safety and fully met the cornerstone objectives. Our review identified that you have crossed the threshold from Green to White for the Mitigating Systems Performance Index - Emergency AC Power performance indicator. On March 30, 2010, the Train A emergency diesel generator tripped unexpectedly during a planned 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> surveillance run due to a lack of lubrication to the governor drive splined sleeve connection that resulted in a loss of hydraulic oil pressure in the engines governor. Combining this run failure with a previous run failure in December 2008 resulting from a leaking gasket in the emergency diesel jacket cooling water system has resulted in the Mitigating Systems Performance Index - Emergency AC Power performance indicator White.

As a result, we have assessed Callaway Plant performance to be in the Regulatory Response column of the NRCs Action Matrix. Therefore we plan to conduct a supplemental inspection using Inspection Procedure 95001, Inspection for One or Two White Inputs In a Strategic Performance Area, during the current assessment cycle. This inspection procedure is conducted to provide assurance that the root causes and contributing causes of risk significant performance issues are understood, the extent of condition is identified, and the corrective actions are sufficient to prevent recurrence.

In accordance with 10 CFR 2.390 of the NRCs 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 the 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).

Union Electric Company 2 Please contact Geoffrey Miller at 817-860-8141 with any questions you may have regarding this letter.

Sincerely,

/RA/

Dwight D. Chamberlain, Director Division of Reactor Projects Docket: 50-483 License: NPF-30 cc:

Mr. Luke H. Graessle Director, Operations Support AmerenUE P.O. Box 620 Fulton, MO 65251 E. Hope Bradley Manager, Protective Services AmerenUE P.O. Box 620 Fulton, MO 65251 Tom Voss Ameren UE 1901 Choteau Avenue St. Louis, MO 63103 Mr. Scott Sandbothe, Manager Plant Support AmerenUE P.O. Box 620 Fulton, MO 65251 R. E. Farnam Assistant Manager, Technical Training AmerenUE P.O. Box 620 Fulton, MO 65251 J. S. Geyer Radiation Protection Manager AmerenUE P.O. Box 620 Fulton, MO 65251

Union Electric Company 3 John ONeill, Esq.

Pillsbury Winthrop Shaw Pittman LLP 2300 N. Street, N.W.

Washington, DC 20037 Missouri Public Service Commission P.O. Box 360 Jefferson City, MO 65102-0360 Dru Buntin Director of Government Affairs Department of Natural Resources P.O. Box 176 Jefferson City, MO 65102-0176 Matthew W. Sunseri, President and Chief Executive officer Wolf Creek Nuclear Operating Corporation P.O. Box 411 Burlington, KS 66839 Kathleen Logan Smith, Executive Director and Kay Drey, Representative, Board of Directors Missouri Coalition for the Environment 6267 Delmar Boulevard, Suite 2E St. Louis, MO 63130 Presiding Commissioner Callaway County Court House 10 East Fifth Street Fulton, MO 65251 Director, Missouri State Emergency Management Agency P.O. Box 116 Jefferson City, MO 65102-0116 Mr. Scott Clardy, Administrator Section for Disease Control Missouri Department of Health and Senior Services P.O. Box 570 Jefferson City, MO 65102-0570 Certrec Corporation 4200 South Hulen, Suite 422 Fort Worth, TX 76109

Union Electric Company 4 Mr. Keith G. Henke, Planner II Division of Community and Public Health Office of Emergency Coordination Missouri Department of Health and Senior Services 930 Wildwood Drive P.O. Box 570 Jefferson City, MO 65102 Chief, Technological Hazards Branch FEMA Region VII 9221 Ward Parkway, Suite 300 Kansas City, MO 64114-3372

Electronic distribution by RIV:

Regional Administrator (Elmo.Collins@nrc.gov)

Deputy Regional Administrator (Chuck.Casto@nrc.gov)

Acting Deputy Regional Administrator (Art.Howell@nrc.gov)

DRP Director (Dwight.Chamberlain@nrc.gov)

DRP Deputy Director (Anton.Vegel@nrc.gov)

DRS Director (Roy.Caniano@nrc.gov)

DRS Deputy Director (Troy.Pruett@nrc.gov)

Senior Resident Inspector (David.Dumbacher@nrc.gov)

Resident Inspector (Jeremy.Groom@nrc.gov)

Branch Chief, DRP/B (Geoffrey.Miller@nrc.gov)

Senior Project Engineer, DRP/B (Rick.Deese@nrc.gov)

Acting Senior Project Engineer, DRP/B (Peter.Jayroe@nrc.gov)

CWY Administrative Assistant (Dawn.Yancey@nrc.gov)

Public Affairs Officer (Victor.Dricks@nrc.gov)

Public Affairs Officer (Lara.Uselding@nrc.gov)

Project Manager (Mohan.Thadani@nrc.gov)

Branch Chief, DRS/TSB (Michael.Hay@nrc.gov)

RITS Coordinator (Marisa.Herrera@nrc.gov)

Regional Counsel (Karla.Fuller@nrc.gov)

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

OEMail Resource ROPreports OEDO RIV Coordinator (Leigh.Trocine@nrc.gov)

R:\_REACTORS\CW\CW 2010 ASSESSMENT FOLLOWUP LETTER.DOC ADAMS: No 5 Yes 5 SUNSI Review Complete Reviewer Initials: GM 5 Publicly Available 5 Non-Sensitive Non-publicly Available Sensitive RIV:SPE:DRP/C C:DRP/C D:DRP RDeese GMiller DDChamberlain

/RA/ /RA/ /RA/

5/4/10 5/4 /10 5/5 /10 OFFICIAL RECORD COPY T=Telephone E=E-mail F=Fax