ML20126M295

Advises That Addl Info Needed for Plants W/Upper Head Injection (Uhi) Sys to Assess Likelihood of Loss of Uhi auto-isolation Capability.Info Re Demand & Failure Frequencies of Isolation Function Requested within 30 Days

ML20126M295
Person / Time
Site:	Mcguire, Catawba, McGuire, 05000000
Issue date:	07/24/1985
From:	Novak T Office of Nuclear Reactor Regulation
To:	Tucker H DUKE POWER CO.
References
TAC-57211, TAC-57212, NUDOCS 8508010310
Download: ML20126M295 (3)

Text

-July 24, 1985

, DISTRIBUTION Docket Nos. 9/370/45S41Y NRC POR Docket Nos: 50-369, 50-370 Local PDR and 50-413, 50-414 PRC Systeu LB #4 r/f EAdensam Mr. H. B. Tucker, Vice President DHood Nuclear Production Department KJabbour Duke Power Company MDuncan 422 South Church Street Attorney, OELD Charlotte, North Carolina 28242 JPartlow EJordan DYue

Dear Mr. Tucker:

BGrimes ACRS(16)

Subject:

Request for Additional Information Regarding Probability of UHI Isolation Failure: McGuire and Catawba Nuclear Stations, Units I and 2 In view of operating experience of nuclear plants with Upper Head Injection (UHI) systems, the NRC staff is conducting a generic review to assess the likelihood of loss of UHI auto-isolation capability, due to both human and equipment related common mode failures. Additional information for Duke Power Company's plants with UHI systems is needed to support this generic assessment.

Specifically, for each of the McGuire and Catawba units, we request that you provide information as to the demand and failure frequencies of the isolation ,

function such as acquired from test and maintenance activities (i.e., provide the demand and failure frequencies relating to challenges to the electrical and mechanical components of the UHI System upon actuation of isolation signals and identify the associated cause for each failure).

Our goal is to complete this assessment in late 1985. Your reply within 30 days of this letter would be consistent with our target completion date and is requested. Contact our Project Manager if you have questions regarding this request.

The reporting and/or recordkeeping requirements contained in this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P.L.96-511.

Sincerely, Ge ge Knighton mas M. Novak, Assistant Director i for Licensing Division of Licensing cc: See next page W $ t) / '

L:LB #4 DL:L ,4 LA@lLB #4 DL: #4l TDL DHood/hmc KJabbour MDunca'n EAdensam o lak 7/g/85 7/g/85 7//b/85 7/)f/85 l 7/g/85 8500010310 850724 PDR ADOCK 05000369 P PDR

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Mr. H. B. Tucker Duke Power Company Catawba Nuclear Station cc:

William L. Porter, Esq. North Carolina Electric Membership Duke Power Company Corp.

P.O. Box 33189 3333 North Boulevard Charlotte, North Carolina 28242 P.O. Box 27306 l

J. Michael McGarry, III, Esq.

Bishop, Liberman, Cook, Purcell Saluda River Electric Cooperative, and Reynolds Inc.

1200 Seventeenth Street, N.W. P.O. Box 929 Washington, D. C. 20036 Laurens, South Carolina 29360 North Carolina MPA-1 Senior Resident Inspector Suite 600 Route 2, Box 179N -

3100 Smoketree Ct. York South Carolina 29745 P.O. Box 29513 i

Raleigh, North Carolina 27626-0513 Regional Administrator, Region II U.S. Nuclear Regulatory Comission.

Mr. C. D. Markham 101 Marietta Street, NW, Suite 2900 l Power Systems Division Atlanta, Georgia 30323 l Westinghouse Electric Corp. '

P.O. Box 355 Pittsburgh, Pennsylvania 15230 Robert Guild, Esq.

P.O. Box 12097 NUS Corporation Charleston, South Carolina 29412 2536 Countryside Boulevard Clearwater, Florida 33515 Palmetto Alliance 2135 i Devine Street Mr. Jesse L. Riley, President Columbia, South Carolina 29205 Carolina Environmental Study Group 854 Henley Place Karen E. Long Charlotte, North Carolina 28208 Assistant Attorney General N.C. Department of Justice Richard P. Wilson, Esq. P.O. Box 629 Assistant Attorney General Raleigh, North Carolina 27602 S.C. Attorney General's Office P.O. Box 11549 Spence Perry, Esquire Columbia, South Carolina 29211 Associate General Counsel Federal Emergency Management Agency Piedmont Municipal Power Agency Room 840 100 Memorial Drive 500 C Street Greer, South Carolina 29651 Washington, D. C. 20472 Mark S. Calvert, Esq. Mr. Michael Hirsch i Bishop, Liberman, Cook, Federal Emergency Management Agency l Purcell & Reynolds Office of the General Counsel 1200 17th Street, N.W. Room 840 Washington, D. C. 20036 500 C Street, S.W.

Washington, D. C. 20472 Brian P. Cassidy, Regional Counsel Federal Emergency Management Agency, Region I i J. W. McCormach POCH

{ Boston, Massachusetts 02109 i l .

. _ - - - - - - - - - - - - - J

Mr. H. B. Tucker Duke Power Company McGuire Nuclear Station cc:

Mr. A. Carr Dr. John M. Barry Duke Power Company Department of Environmental Health P. O. Box 33189 Mecklenburg County l 422 South Church Street 1200 Blythe Boulevard Charlotte, North Carolina 28242 Charlotte, North Carolina 28203 1

Mr. F. J. Twogood County Manager of Mecklenburg County Power Systems Division 720 East Fourth Street Westinghouse Electric Corp. Charlotte, North Carolina 28202  :

P. O. Box 355 l Pittsburgh, Pennsylvania 15230 Chairman, North Carolina Utilities 1 Commission -

Mr. Robert Gill Dobbs Building Duke Power Company 430 North Salisbury Street Nuclear Production Department Raleigh, North Carolina 27602 P. O. Box 33189 Charlotte, North Carolina 28242 Mr. Dayne H. Brown, Chief Radiation Protection Branch J. Michael McGarry, III, Esq. Division of Facility Services Bishop, Liberman, Cook, Purcell ' Department of Human Resources and Reynolds P.O. Box 12200 1200 Seventeenth Street, N.W. Raleigh, North Carolina 27605 Washington, D. C. 20036 Senior Resident Inspector c/o U.S. Nuclear Regulatory Commission Route 4 Box 529 Hunterville, North Carolina 28078 Regional Administrator, Region II U.S. Nuclear Regulatory Commission, 101 Marietta Street, N.W., Suite 2900 Atlanta, Georgia 30323 R. S. Howard Operating Plants Projects Regional Manager Westinghouse Electric Corporation - R&D 701 P. O. Box 2728 Pittsburgh, Pennsylvania 15230