ML20215B123

Confirms That Methodologies in XN-NF-79-71,Rev 2,Nov 1981 & Util to NRC Acceptable for Application for Facility Cycle 3 Transients.Nrc Acceptance Will Be Assumed If No NRC Exceptions Received by 870710

ML20215B123
Person / Time
Site:	Grand Gulf
Issue date:	06/09/1987
From:	Ward G SIEMENS POWER CORP. (FORMERLY SIEMENS NUCLEAR POWER
To:	Hodges M Office of Nuclear Reactor Regulation
References
GNW:045:87, GNW:45:87, NUDOCS 8706170229
Download: ML20215B123 (1)

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ADVANCEDNUCLEARFUELS CORPORATION 2101 HORN RAPIDS ROAD, PO BOX 130, RICHLANO, WA 99352 0130 FUEL ENGINEERING &

(509) 375 8100 TELEX; 15 2878 TECHNICAL SERVICES June 9, 1987 GNW:045:87 l i

Mr. M. Wayne Hodges, Chief Reactor Systems Branch Division of Engineering and Systems Technology Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Subject:

Approval Status of: 1) " ENC Plant Transient Methodology for Boiling Water Reactors," XN-NF-79-71, Rev. 2, November 1981 and 2)

Loss of Feedwater Heating Event Analysis Using XTGBWR, Letter, O. D. I Kingsley (MP&L) to H. Denton (NRC), dated September 5, 1986.

This letter is to confirm that the subject methodologies are acceptable for application for Grand Gulf Unit 1, Cycle 3. j t

Advanced Nuclear Fuels Corpo"... (AnF) has performed the transient analyses I necessary to evaluate the impact of a second reload of ANF fuel on . thermal margins using the subject methodologies. The documentation of these analyses will be provided to SERI approximately five months prior to the scheduled startup. It is ANF's understanding that SERI intends to review the technical information provided by ANF and, if appropriate, perform a 10 CFR 50.59 evaluation of the reload. To complete this evaluation under the 10 CFR 50.59 criteria, SERI will rely on the acceptability of the subject methodologies.

These methodologies have been found acceptable by the NRC for ANF reloads on a j case-by-case basis including Grand Gulf Unit 1, Cycle 2 (Letter, L. L. Kintner 1

[NRC] to 0. D. Kingsley, Jr. [MP&L], dated October 24, 1986). Based on this reference and other NRC Reload Approval s , which utilized the subject methodologies, it is ANF's conclusion that these methodologies are suitable for analyzing the Grand Gulf Unit 1, Cycle 3 transients.

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If you do not take exception to this conclusion by July 10, 1987, ANF and SERI will proceed on the basis that the NRC agrees that the subject methodologies ,

are acceptable for analysis of Grand Gulf Unit 1, Cycle 3. l l

Yours ver truly, l 8706170229 870609 PDR ADOCK 05000416 [

P PDR G. N. Ward, Manager Reload Licensing GNW:llh cc: Mr. Y. Balas (SERI)

AN AFFILIAit Of MAf TWEM UMON N )

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