ML19209B217

Forwards Proposed Amend to License NPF-5,changing Tech Specs,App a

ML19209B217
Person / Time
Site:	Hatch
Issue date:	10/02/1979
From:	Kelly R GEORGIA POWER CO.
To:	Office of Nuclear Reactor Regulation
Shared Package
ML19209B218	List: ML19209B217 ML19209B219
References
NUDOCS 7910090339
Download: ML19209B217 (2)

Text

Georga Po4er Cor"pany 230 Peachtree Street Post O'f:ce Box 4545 Atanta. Georgia 30302 Tetophore 404 522 6060 R. J. K elly October 2, 1979 Georgiti Power vice Presdent ano Gen..rai Manager Power Generation r

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e Director of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D.C.

20555 NRC DOCKET 50-366 OPERATING LICENSE NPF-5 EDWIN I. HATCH NUCLEAR PLANT UNIT 2 PROPOSED CHANGE TO TECHNICAL SPECIFICATIONS Gentlemen:

Pursuant to 10 CFR 50.90 as required oy 10 CFR 50.59(c)(1), Georgia Power Company hereby proposes an amendement to the Plant Hatch Unit 2 Technical Specifications (Appendix A to the Operating License).

The proposed amendment here-in is a supplement to our previous submittal of July 27, 1979 which was subsequently denied by your letter of August 29, 1979. The proposed change would revise the ACTION statements of Technical Specification 3.6.4.1 to allow continued operation until the next COLD SHUTDOWN with one or two suppression chamber to drywell vacuum breakers inoperable but known to be in the closed position.

The HNP-2 FSAR (Section 6.2.1.2.1.6.1) supports continued operation with 9 operable valves and 3 inoperable valves which are known to be closed. Clearly, with one or two inoperable valves, the vacuum relief capacity is adequate such that a failure of a single active component can be tolerated without compromising the relief capacity.

Sufficient redundancy exists with two valves inoperable to allow start-up from a HOT SHUTDOWN condition without requiring that maintenance be performed on the inoperable valves. Maintenance on inoperable torus to drywell vaccum breakers can not safely be performed in the HOT SHUTDOWN condition and requiring the unit to go to the COLD SHUTDOWN condition to repair one or two valves places an unnecessary burden on plant operations.

The proposed amendment has not changed the probability of occurrence or the consequences of an accident or malfunction of equipment important to safety which has been previously analyzcd because no change in the mode of operation is effected as a result of the proposal.

Similarly, the possibility of an accident or malfunction of a different type does not result from this change because no equipment design or operation is altered. Margins of safety are not reduced from those afforded by the existing Specification because operating limits have not been changed.

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k Georgia Power h The Plant Review Board and the Safety Review Board have reviewed and approved the proposed amendment, and in consideration of the above have d '_crmined that the proposed amendment does not constitute an unreviewed safety question.

Yours very truly, R. J. Kelly JAB /mt Sworn to and subscribed before me this 2nd day of October, 1979.

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Notary I'ublic xc: Ruble A. Thomas Notary PubHe, Georgia, State at Large y

n ssi n ru uY 28, M80 George F. Trowbridge, Esquire R. F. Rogers r-

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