View source for B12596, Forwards Errata & Addenda to GE Rept 23A4845, Supplemental Reload Licensing Submittal for Millstone Unit 1,Reload 11. Stability of Cycle 12 Core Consistent W/Previously Evaluated Cores

{{Adams
| number = ML20235R425
| issue date = 07/14/1987
| title = Forwards Errata & Addenda to GE Rept 23A4845, Supplemental Reload Licensing Submittal for Millstone Unit 1,Reload 11. Stability of Cycle 12 Core Consistent W/Previously Evaluated Cores
| author name = Mroczka E
| author affiliation = NORTHEAST NUCLEAR ENERGY CO., NORTHEAST UTILITIES
| addressee name = 
| addressee affiliation = NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
| docket = 05000245
| license number = 
| contact person = 
| document report number = B12596, NUDOCS 8707210321
| package number = ML20235R428
| document type = CORRESPONDENCE-LETTERS, INCOMING CORRESPONDENCE, UTILITY TO NRC
| page count = 3
}}

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July 14,1987 Docket No. 50-245 B12596 Re: 10CFR50.90                                         l U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555 Gentlemen:                                                                                                           i Millstone Nuclear Power Station, Unit No.1                                             I Additional Information Reload 11/ Cycle 12
                                                                                                                                )
Pursuant to 10CFR50.90, Northeast Nuclear Energy Com pany (NNECO) submitted, in a {{letter dated|date=May 21, 1987|text=letter dated May 21, 1987}},(1) proposed changes to the Technical Specifications of Millstone Unit No. I concerning the minimum critical power ratio, linear heat generation rate, and maximum average planar linear heat generation rate operating limits to reflect Cycle 12 operation. Following a telephone conversation on June 29, 1987 with members of the NRC Staff,                                               ,
NNECO submitted a reworded, pro osed revision to Technical Specification                                             )
3.II.A.1, as requested by the Staff.(                   Subsequently, in a telephone conversation                     l with members of the NRC Staff on July 1,1987, NNECO was requested to                                                  I transmit a revised page 12 of General Electric's " Supplemental Reload Licensing                                      j Submittal for Millstone Point Nuclear Power Station Unit 1, Reload i1," which                                         )
was provided as Attachment 2 to Reference (1). This revised page is hereby                                             l submitted as Attachment I to this letter. This page revision is intended to                                            ;
correct an administrative oversight in the disoriented fuel bundle analysis. The                                      I change in the critical power ratio ( CPR) due to a fuel loading error                                                 I (miseriented bundle) was stated as 0.0 in Reference (1). The amended page                                             l correctly states it to be 0.13.
The NRC Staff had additional questions regarding the stability analysis results in Attachment 2 of Reference (1). General Electric evaluated the Millstone Unit No. I Reload 11 design and performance and concluded that the stability of the Cycle 12 core is consistent with previously evaluated cores which have an acceptable stability margin and are consi tent with the bases outlined in the NRC's April 24, 1985 Safety Evaluation.(                        Therefore, no further analysis is required.
(1) E. 3. Mroczka letter to U. S. Nuclear Regulatory Commission, " Millstone Unit                                      I No.1 - Proposed Revision to Technical Specifications, Reload ll/ Cycle 12,"
dated May 21,1987.
(2) E. 3. Mroczka letter to U. S. Nuclear Regulatory Commission," Millstone Unit No.1 - Proposed Revision to Technical Specifications, Reload il/ Cycle 12,"
dated June 30,1987.
(3) C. O. Thomas letter to H. C. Pfefferien (CE), " Acceptance for Referencing of Licensing Top!' cal Report NEDE-240ll, Rev. 6., Amendment No.8,
              ' Thermal-Hydraulic Stability Amendment to GESTAR II,'" April 24,1985.                                   g 0
8707210321 970714 PDR P
ADOCK 05000245 PDR.                                                                     l' 0 \Db
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  ,                       U.S. Nuclear Regulatory Commission
                    - B12596/Page 2 July 14,1987 The additional information contained in this submittal does not result in the need               i for a subsequent Millstone Unit No. 1 Technical Specification revision.
Additionally, NNECO's ' conclusions concerning 10CFR50.59 and 10CFR50.92 determinations as discussed in Reference (1) are not altered. The proposed changes do not constitute an unreviewed safety question or involve a significant hazards consideration.
In accordance with 10CFR50.91(b), we are providing the State of Connecticut with a copy of this additional information supporting our amendment request in Reference (1).
Pursuant to the requirements of 10CFR170.12(c), the application fee of $150 was provided with Reference (1).
Very truly yours, NORTHEAST NUCLEAR ENERGY COMPANY          l
                                                                                               // t% 44 E.Jfr6czka' /
Ser> tor Vice Presloent cc:                     W. T. Russell, Region I Administrator M. L. Boyle, NRC Project Manager, Millstone Unit No.1 T. Rebelowski, Resident inspector, Millstone Unit Nos. I and 2 Mr. Kevin McCarthy Director, Radiation Control Unit Department of Environmental Protection Hartford, Connecticut 06116 STATE OF CONNECTICUT )
                                                                        ) ss. Berlin COUNTY OF HARTFORD                               )
Then personally appeared before me E. 3. Mroczka, who being duly sworn, did state that he is Senior Vice President of Northeast Nuclear Energy Company, a Licensee herein, that he is authorized to execute and file the foregoing information in the name and on behalf of the Licensee herein and that the                           i statements contained in said information are true and correct to the best of his knowledge and belief.
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han5f Notary Pfc My Commission Expires March 31,1988 l
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   "                                 Docket No. 50-243 B12596 1
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Attachment 1                    I Millstone Nuclear Power Station, Unit No.1 Additional Information Reload ll/ Cycle 12 1
l 1.
I July,1987}}