ML20137T288

Application for Amend to Licenses NPF-2 & NPF-8,revising Tech Specs Re Reactor Coolant Loop Operability.Fee Paid

ML20137T288
Person / Time
Site:	Farley
Issue date:	02/07/1986
From:	Mcdonald R ALABAMA POWER CO.
To:	Rubenstein L Office of Nuclear Reactor Regulation
Shared Package
ML20137T291	List: ML20137T288 ML20137T298
References
TAC-60826, TAC-60827, NUDOCS 8602180303
Download: ML20137T288 (3)

Text

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MaHing Address AllbIm2 Powsr Company'

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600 North 18th Street Post Office Box 2641 -

Birmingham. Alabama 35291 Telephone 205 783-6090 R. P. Mcdonald RC'CE"o'*"' Alabama Power

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February 7, 1986 Docket Nos. 50-348 50-364 Director, Nuclear Reactor Regulation U. S. Nuclear Regulatory Comission Washington, D.C. 20555 Attention: Mr. L. S. Rubenstein Joseph M. Farley Nuclear Plant - Units 1 and 2 Reactor Coolant Loop Operability Technical Specification Change Gentlemen:

Westinghouse Electric Corporation has informed Alabama Power Company of a potential problem concerning the consistency between the FSAR safety analyses and the Technical Specifications of Westinghouse-designed NSSS plants. The inconsistency involves the number of reactor coolant loops operating while in Mode 3. As a result of an evaluation conducted by Alabama Power Company, it has been determined that the potential inconsistency identified by Westinghouse u applicable to Farley Nuclear Plant (FNP) Units 1 and 2.

The Technical Specifications for FNP Units 1 and 2 currently require only a single reactor coolant loop to be operating while the plant is in Mode 3. This requirement ensures adequate capability for decay heat removal. In addition, a second reactor coolant loop is required to be operable for single failure considerations. However, the FNP FSAR safety analyses assumed that the Mode 2 analysis for the rod bank withd awal accident enveloped the Mode 3 conditions. The FNP FSAR safety analyses and Technical Specifications are based on all three reactor coolant loops operating in Mode 2 for this accident. As a result, since all three reactor coolant loops are required to be operating in Mode 2, all three loops must be operating in Mode 3 to satisfy the analysis for the rod bank withdrawal accident or the rod control system must be disabled to ensure that this accident cannot occur.

' In order to preclude the possibility of a Mode 3 rod bank withdrawal accident with less than three reactor coolant loops operating, Alabama Power Company has implemented FNP procedures which require the operator to disable the rod control system for rod withdrawal when less than three reactor 4h em:m ,v w g -

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Mr. L'. S. Rubenstein February 7,- 1986 U. S. Nuclear Regulatory Commission Page 2 coolant loops are operating in Mode 3. The disabling of the rod control system may be accomplished by opening the reactor trip breakers or shutting down the rod drive motor / generator sets. These procedural requirements ensure that the plant is operated in a manner that is bounded by the FNP FSAR safety analyses.

It is therefore proposed that the Technical Specification Mode 3 reactor coolant loop operability requirements be modified to reflect the conservative plant procedural requirements which are already in place. The ,

proposed Technical Specification changes are shown in Attachment 1. It is requested that the NRC approve this Technical Specification change by August 27, 1986.

Alabama Power Company has determined that the proposed change does not involve a significant hazards consideration. The requirea analysis, pui = ant to 10CFR50.92, is provided as Attachment 2.

Alabama Power Company's Plant Operations Review Committee has reviewed this proposed change and the Nuclear Operations Review Board will review this proposed change at a future meeting.

As required by 10CFR170.21, the License Amendment Application Fee of

$150.00 is enclosed. In accordance with 10CFR50.90, three signed originals and forty additional copies of this proposed change are enclosed. A copy of this proposed change has also been sent to Mr. Dan Turner, the Alabama State Designee, in accordance with 10CFR50.90(b)(1).

If you have any questions, please advise.

Yours very tydTh3

,% c R. P. Mcdonald RPM /JLO:ddb-043 Attachments cc: Mr. L. B. Long SWORN TO AND SUBSCRIBED BEFORE ME Dr. J. N. Grace Mr. E. A. Reeves THIS g h DAY 0 (M0! 1986 Mr. W. H. Bredford \ .

O Mr. Dan Turner \%na d Q Notary Pqlic My Commission Expires: k-O -N

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Attachment 1

Proposed Changed Pages Unit l' Revision Page 3/4 4-2 Replace Page B-3/4 4-1 Replace

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Unit 2 Revision Page 3/4 4-2 Replace .

.Page B 3/4 4-1 Replace 0314F

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