ML20151F946

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Advises That Waiver of Compliance Will Be Effective Through 880722 While NRC Completes Processing of Emergency Tech Spec Change Request Re Automatic Diesel Generator Trips
ML20151F946
Person / Time
Site: McGuire, Mcguire  Duke Energy icon.png
Issue date: 07/20/1988
From: Lainas G
Office of Nuclear Reactor Regulation
To: Tucker H
DUKE POWER CO.
References
TAC-68727, TAC-68728, NUDOCS 8807280027
Download: ML20151F946 (2)


Text

_ _ _ _ _ - _ - _ _ _

July 20, 1988 y

Docket Nos.:

50-369 50-370 Mr. H. B. Tucker, Vice President Nuclear Production Department Duke Power Company 422 South Church Street Charlotte, North Carolina 28242

~

Dear Mr. Tucker:

SUBJECT:

TEMPORARY WAIVER OF COMPLIANCE - MCGUIRE NUCLEAR STATION, UtllTS 1 and 2 (TACS 68727/68728)

By telephone call on July 15, 1988, and by your letters of July 15 and 19,1988, you informed the NRC staff that it is not possible to demonstrate com liance with the current McGuire Technical Specification (TS) 4.8.1.1.2.e.6)c. This surveillance TS requires all but three automatic diesel generator (DG trips to be automatically bypassed during simulation of a loss-of-offsite power in conjunction with an engineered safety features actuation test signal.

This TS can not be met as presently written because, in fact, there are four DG trips not automatically bypassed in the design rather than three. Similarly, there are two breaker trips not automatically bypassed rather than the one presently recognized in the TS.

You requested that the TS be corrected on an emergency basis to avoid all diesels being declared inoperable and the attendant requirement for shutdown and extended refueling outage for McGuire Units 1 and 2 respectively.

We have reviewed your evaluation and the justification provided in your letter regarding the DG operability. We agree that the time overcurrent diesel generator protective trip and the generator differential breaker trip should not be automatically bypassed when conducting the above cited surveillance test. This letter confirms the verbal granting of a temporary waiver of compliance for the above TS.

This waiver of compliance will be in effect through July 22, 1988, while we complete the processing of your emergency TS change request.

The potential violation of this TS associated with prior testing since February 1,1985, is not affected by this flRC waiver. Whether enforcement action is appropriate will be separately considered.

Sincerely,

~

Original signed by:

88072800 PDR AD Gus C. Lainas, Assistant Director P

for Region II Projects Division of Reactor Projects I-II cc: See next page DISTRIBUTION

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

Mr. A.V. Carr, Esq.

Dr. John M. Barry Duke Power Company Cepartment of Environmental Health P. O. Box 33189 Mecklenburg County 422 South Church Street 1200 Blythe Boulevard Charlotte, North Carolina 28242 Charlotte, North Carolina 28203 County Manager of Mecklenburg County Mr. Dayne H. Brown, Chief 720 East Fourth Street Radiation Protection Branch Charlotte, North Carolina 28202 Division of Facility Services Department of Human Resources 701 Barbour Drive Mr. Robert Gill Raleigh, North Carolina 27603-2008 Duke Power Company Nuclear Production Department P. O. Box 33189 Charlotte, North Carolina 28242 J. Michael McGarry, III, Esq.

l Bishop, Liberman, Cook, Purcell j

and Reynolds 1200 Seventeenth Street, N.W.

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 S. S. Kilborn Area Manager, Mid-South Area ESSD Projects Westinghouse Electric Corporation MNC West Tower - Bay 239 P. O. Box 355 Pittsburgh, Pennsylvania 15230 i

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