ML17292A924

Forwards Applicable FOL Page W/Addl License Condition Added Re TS Amend of Min Critical Power Ratio Safety Limits

ML17292A924
Person / Time
Site:	Columbia
Issue date:	07/03/1997
From:	Swank D WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
GO2-97-139, NUDOCS 9707150329
Download: ML17292A924 (8)

Text

CATEGORY 1 REGULAT INFORMATION DISTRIEUTIOt&ISTEM (RIDE) tg ACCESSION NBR:9707150329 DOC.DATE: 97/07/03 NOTARIZED: NO DOCKET I FACIL:50-397 WPPSS Nuclear Project, Unit 2, Washington Public Powe 05000397 AUX'H'.gAPE AUTHOR AFFILIATION SWANK,P.A. Wa'shington Public Power Supply System RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Forwards applicable FOL page w/addi license condition added re TS amend of Min Critical Power Ratio Safety Limits.

DISTRIBUTION CODE: A001D COPIES RECEIVED:LTR ENCL SIZE:,

TITLE: OR Submittal: General Distribution NOTES:

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL '1 PD4-2 LA 1 1 PD4-2 PD 1 COLBURN,T 1 1 INTERNAL: ACRS 1 1 1 1 NRR/DE/ECGB/A 1 1 NRR/DE/EMCB 1 1 NRR/DRCH/HICB 1 1 NRR/DSSA/SPLB 1 1 NRR/DSSA/SRXB 1 1 NUDOCS-ABSTRACT 1 1 OGC/HDS3 1 0 EXTERNAL: NOAC 1 1 NRC PDR 1 1 NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTEl CONTACT THE DOCUMENT CONTROL DESK/

ROOM OWFN 5D-5(EXT. 415-2083) TO ELIMINATE YOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPIES REQUIRED: LTTR 14 ENCL. 13

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WASHINGTON PUBLIC POWER SUPPLY SYSTEM P.O. Box 968 ~ Richland, Washington 99352-0968 July 3, 1997 G02-97-139 Docket No. 50-397 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555 Gentlemen:

Subject:

WNP-2, OPERATING LICENSE NPF-21 AMENDMENTTO OPERATING LICENSE IN SUPPORT OF MCPR TECHNICAL SPECIFICATION CHANGE REVISED ADDITIONALINFORMATION

Reference:

Letter GO2-97-137 dated July 3, 1997, DA Swank (SS) to NRC, "Amendment to Operating License in Support of MCPR Technical Specification Change Additional Information" Based on discussions with the staff, the Supply System understands that an additional license condition will be added with approval of the referenced amendment request. It is our understanding that the license condition will be as shown in the Attachment to this letter.

Should you have any questions or desire additional information regarding this matter, please contact me or Mr. P. J. Inserra at (509) 377-4147.

Respectfully, D. A. Swank (PE20)

Manager,'Regulatory Affairs cc: EW Merschoff - NRC RIV DL Williams - BPA/399 KE Perkins Jr. NRC - RIV CR Wallis - EFSEC TG Colburn - NRR PD Robinson - Winston Strawn NRC Sr. Resident Inspector - 927N 9707i50329 970703 PDR 'DOCK 05000397 P PDR

ATTACHMENT tt APPENDIX C ADDITIONAL CONDITIONS FACILITY OPERATING LICENSE NO. NPF-21 Washington Public Power Supply System shall comply with the following conditions on the 'schedules noted below:

Amendment Implementation Number Additional Condition Date 149 The licensee shall relocate certain Implementation technical specification requirements shall be completed to licensee-controlled documents as by June 30, 1997.

described below. The location of these requirements shall be retained by the licensee.

a. This license condition approves the relocation of certain technical specification requirements to licensee-controlled documents (e.g., UFSAR, LCS, etc.), as described in Attachment 1 to the licensee's letter dated January 14, 1997. The approval is documented in the staff's safety evaluation dated Harch 4, 1997.

149 Regulatory Guide 1. 160 commitments Implementation as described in Attachment 1 to the shall be completed licensee's letter dated January 14, 90 days from the 1997. date of issuance of Amendment 149.

151 To ensure sufficiently conservative Implementation SPC 9X9-9 OLMCPRs, the calculation of shall be completed

~CPR will include a conservative adder prior to exceeding based on the variability observed in 25% power for the US96A7 comparison with the ANFB Cycle 13.

correlation. This adder will be at a minimum, the greater of two times the standard deviation in the mean error of the predictions relative to the calcu-lated matrix values, or a factor of 0.975 applied to the ~CPR calculation, and will be independent of the 0.975 factor in-cluded in the US96A7 correlation as a conservative bi as to the US96A7 predic-tions of CPR for the SPC fuel.

Amendment No. 449 151

ATTACHMENTTO GO2-97-139 APPLICATION OF THE 0.975 FACTOR The 0.975 factor in the proposed license condition will be applied in the following manner:

MCPR; CPR = SLMCPR 0,975 X MCPR MCPR; = MCPR value prior to limiting transient MCPR< = Worst case MCPR value during limiting transient SLMCPR = Safety Limit MCPR