ML20079P232

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Forwards Proprietary Revised Pages of Westinghouse Supporting Documentation for Tech Spec,App B Change Request 75,initially Submitted by 830104 Rept, Incore Detector Thimble Reduction Study. Pages Withheld
ML20079P232
Person / Time
Site: Beaver Valley
Issue date: 02/24/1983
From: Carey J
DUQUESNE LIGHT CO.
To: Varga S
Office of Nuclear Reactor Regulation
Shared Package
ML19262H592 List:
References
TAC-49436, NUDOCS 8303040564
Download: ML20079P232 (2)


Text

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'Af uesneLigit Telephone (412) 393-6000 Nuclear Division P.O. Box 4 Shippingport, PA 15077 0004 February 24, 1983 Director of Nucicar Reactor Regulation United States Nuclear Regulatory Commission Attn:

Mr. Steven A. Varga, Chief Operating Reactors Branch No.1 Division of Licensing Washir.gton, DC 20555 Referince: Beaver Valley Power Station, Unit No. 1 Docket No. 50-334, License No. DPR-66 Revised Supporting Documentatica to Technical Specification Change Request No. 75 to Operating License Cent lemeri:

Enclosed are revised pages of supporting documentation for Technical Specification Change Request No. 75.

The supporting docu-mentation was initially submitted by letter dated January 4, 1983 titled "Incore Detector Thimble Reduction Study".

The corrections only affect Attachment B and are described as follows:

Revised Pages Typographical Error Page 2, 3, & 4 Square root sign omitted in the last equation Page 6 Table 1 1.

The third value of Fjg % Diff for Map 18 was 02r corrected to -0.21 2.

The mean value off A0(%)

was -0.08 corrected to -0.11 3.

The standard deviation of AA0(%) was 0.15 corrected to 0.13 Page 7 Table 2 1.

The first three values of F

% Dif f were 0.65, 0.21 a$b0.41correctedto0.70, 0.25, and 0.44 respectively 2.

The mean value of F g % Diff was 0.25 corrected to 0.27 0303040564 830224 PDR ADOCK 05000334 P

PDR

o' B,3 var Vallcy Power?Ststion, U2it Nm

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D:cket,No. 50-334, Lic:nso N2. DPR-66 Revised Supporting Document 0ticn tc Tcchnient SpIcifiestica Change Request No. 75 to operating License Page 2

3. The first value of 4A0(%) was 0.08 corrected to -0.08 l'

l l

Appendix A Brackets had been omitted from equation Page 3 (A-8)

Appendix A Square root sign had been omitted j.

Page 4 in the last equation Therefore, to correct the typographical errors, please remove the l

applicable pages from ' the study that was previously submitted and I

insert the attached revised pages.

Since this information is proprietary to Westinghouse Electric Corporation, we are requesting that this information be witheid from public disclosure. based on the affidavit included in our submittal of l

January 4, 1983.

If you have any questions regarding the attached inforuation, please contact my office.

Very truly yours, J. J. Cerey Vice President, Nuclear cc:

Mr. W. M. Troskoski, Resident Inspector U. S. Nuclear Regulatory Commission Beaver Valley Power Station Shippingport, PA 15077 Mr. Pete Tam, Project Manager U. S. Nuclear Regulatory Commission Phillips Building Washington, DC 20555 l

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