ML17285A513

Forwards Supplemental Info to 890331 Application for Amend to License NPF-21,revising Tech Specs 3/4.2.6, Power Flow Instability & 3/4.2.7, Neutron Flux Noise Monitoring, Per 890515 & 22 Telcons W/Nrc

ML17285A513
Person / Time
Site:	Columbia
Issue date:	06/01/1989
From:	Sorensen G WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17285A514	List: ML17285A513 ML17285A517
References
GO2-89-101, TAC-72924, NUDOCS 8906070199
Download: ML17285A513 (11)

Text

" A'iCELEp>TED D1~BUTloN DEMONSTI+lloN SYFIEM REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)ACCESSION NBR:8906070199 DOC.DATE: 89/06/01 NOTARIZED:

YES DOCKET g FACIL:50-397 WPPSS Nuclear Project, Unit 2, Washington Public Powe 05000397 AUTH.NAME AUTHOR AFFILIATION

,'ORENSEN,G.C.

Washington Public Power Supply System RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Forwards suppl info to 890331 application for amend to License NPF-21,per NRC 890515&22 telcons.DISTRIBUTION CODE: AOOID COPIES RECEIVED:LTR

~ENCL l SIZE: cS+~~TITLE: OR Submittal:

General Distribution I NOTES: RECIPIENT ID CODE/NAME PD5 LA SAMWORTH,R INTERNAL: ACRS NRR/DEST/CEB 8H NRR/DEST/I CS B NRR/DEST/RSB 8E NUDOCS-ABSTRACT OGC/HDS2 RES/DSIR/EIB EXTERNAL: LPDR NSIC COPIES LTTR.ENCL 1 1 5 5 6 6 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 RECIPIENT ID CODE/NAME PD5 PD NRR/DEST/ADS 7E NRR/DEST/ESB 8D NRR/DEST/MTB 9H NRR/DOEA/TSB 11 OC=G FI 01 NRC PDR COPIES LTTR ENCL 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 D S h D MI E IO ALL RI DS RECI PIERS o PIZASE HELP US'IO RE3XKZ WASTE.'ONZACI'IHE DOCUMEPZ CXNIROL DESK, ROOM Pl-37 (EXT.20079)KO ELIMINATE YOUR NAME PBCM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEEDt TOTAL NUMBER OF COPIES REQUIRED: LTTR 28 ENCL 26 4 A

~g~WASHINGTON PUBLIC POWER SUPPLY SYSTEM P.O.Box 968~3000 George Washington Way~Richland, Washington 99352 June 1, 1989 G02-89-101 Docket No.50-397 U.S.Nuclear Regulatory Commission Attn: Document Control Desk Mail Station Pl-137 Washington, D.C.20555 Gentlemen:

Reference:

NUCLEAR PLANT NO.2 OPERATING LICENSE NPF-21, REQUEST FOR AMENDMENT TO TECHNICAL SPECIFICATIONS 3/4.2.6, POWER FLOW INSTABILITY AND 3/4.2.7 NEUTRON FLUX NOISE MONITORING, SUPPLEMENTAL INFORMATION Letter, G02-89-051, G.C.Sorensen (SS)to NRC, same subject, dated March 31, 1989 As a result of phone conversations with the Staff on May 15 and 22, 1989 it was recognized that editorial modifications to the changes requested in the reference letter should be made.Attachment 1 provides these changes.Further the Staff requested information on the hardware and computer equipment supporting the ANNA Stability Monitoring System and a draft of the procedure that will be used to demonstrate ANNA system operability.

Attachments 2 and 3 provide this information.

The reference requested changes to the Technical Specifications to replace the existing detect-and-suppress technical specifications with specifications based on the ANNA Stability Monitoring System developed by Advanced Nuclear Fuels (ANF).The ANNA system as implemented at WNP-2 represents only a soft-ware modification to the existing plant configur ation.All of the necessary hardware was already in place in the form of our Plant Process Computer Replacement System (PPCRS).Attachment 2 provides details of the PPCRS system hardware, software, configuration, and display menu system.The ANNA system is currently capable of identifying a high decay ratio within 30 to 60 seconds of occurrence.

Procurement of an upgrade in CPU capability has been approved which will cut this response time to approximately 10 seconds (anticipated upgrade completion is July 1989).PDR o 015'9 89060 8~Ogpy p K 0~000397 PDC C p 1 l

'age Two PEQUEST FOR AMENDMENT TO TS 3/4.2.6 POWER FLOW INSTABILITY AND 3/4.2.7 NEUTRON FLUX NOISE MONITORING, SUPPLEMENTAL INFORMATION The impact on plant procedures as a result of adopting stability monitoring system based technical specifications will initially be minor.As discussed in the referenced submittal, the stability monitoring system will be imple-mented within the framework of the existing Interim Corrective Actions.These actions have already been incorporated into the plant operating procedures.

The only changes required will be to include directions for demonstrating the ANNA system operable prior to entry into Region C in accordance with the Interim Corrective Actions, directions for exiting the region should ANNA be found to be inoperable, and directions for responding to ANNA indications.

Whereas previously the APRH recorders and LPRM upscale/downscale alarms represented the principal variables to be monitored, the ANNA displayed decay ratio and peak-to-peak noise values will represent the principal variables to be monitored.

Our procedures will direct control room personnel to confirm ANNA peak-to-peak indications via the APRM recorders and the rod display LPRH meters prior to initiating a manual scram in accordance with the Interim Corrective Actions.A proposed ANNA operability surveillance procedure is enclosed (Attachment 3).1I In addition to the"editorial modifications, attachment 1 provides a br ief description of the differences between the changes requested in the Referenced letter and the modifications proposed as'a result of the above mentioned phone conversations.

The Supply System in submitting these modifications considers them to be within the scope of the changes requested in the Reference and accordingly the conclusions as to plant safety, proposed no significant hazard d determination and environmental assessment submitted in the Reference are applicable to these modifications.

These modifications have been reviewed and approved by the WNP-2 Plant Opera-tions Committee (POC)and the Supply System Corporate Nuclear Safety Review Board (CNSRB).In accordance with 10CFR 50.91, the State of Washington has been provided a copy of this letter.Very truly yours, G.C.Sor nsen, Manager Regulatory Programs PLP/bk Attachments cc: C Eschels-EFSEC JB Hartin-NRC RV NS Reynolds-BCP8R RB Samwoth-NRC DL Williams-BPA/399 NRC Site Inspector-901A I E STATE OF WASHINGTON)

)COUNTY OF BENTON)

Subject:

/'/K Z<I, G.C.Sorensen, being duly sworn, subscribe to and say that I am the Nanager, Regulatory Programs, for the WASHINGTON PUBLIC POWER SUPPLY SYSTEN, the applicant herein;that I have full authority to execute this oath;that I have reviewed the foregoing; and that to the best of my knowledge, information and belief the statements made in it are true.DATE+Wrac j, 1989 G.C.orensen, Nanager Regulatory Programs On this day personally appeared before me G.C.Sorensen to me known to be the individual who executed the foregoing instrument and acknowledged that he signed the same as his free act and deed for the uses and purposes herein mentioned.

GIVEN under my hand and seal this~day of 1989.a lotar u i in and or t A OF WASHINGTON Ieh f ll",.c-.y,'f nu Residing at r~Ny commission expires 1 91 A I I C P'I ATTACHMENT 1

SUMMARY

OF MODIFICATIONS TO THE PROPOSED CHANGES SUBMITTED, IN THE REFERENCE (G02-89-51, MARCH 31, 1989)o The definition of IMMEDIATELY has been deleted.Where it was proposed in the Reference the phrase"as soon as practical, but in all cases within 15 minutes" has been inserted as replacement.

This eliminates the need to change pages i, ii, iii.1-3, 1-4, 1-5, 1-6, 1-7 and 1-8.These pages and the page providing a definition of IMMEDIATELY are hereby withdrawn as no changes to these pages are necessary.

In keeping wi th the precedence set by IE Bulletin 88-07 and the Interim Corrective Actions the area labeled Region"B" on Figure 3.2.7-1 is relabeled"C" to denote an area allowed for operations instead of an area requiring prompt departure.

This is corrected also in the applicability statement of Limiting Condition for Operations (LCO)3.2.7.The surveillance requirements of LCO 3.2.7 and 3.2.8 have been modi-fied to better define requirements for monitoring the stability monitor-ing system when in the region of applicability and the method of deter-mining stability monitoring system operability has been expanded.Figure 3.2.8-1 and Figure 3.4.1.1-1 of the Reference submittal have been modified to show that Region C considerations are not required at core flow greater than 45$.This is in accordance with the Interim Corrective Actions and IEB 88-07 which requir e Region C considerations only when below 45%core flow.o Action item 3.4.l.l.a.2.f)(page 3/4 4-2)and Surveillance Requirement 4.4.1.1.l.c page (3/4 4-3)address noise level monitoring and suppression which is covered by the changes in Figure 3.4.1.1-1 imposed by the Interim Corrective Actions and IEB 88-07.The ANNA system and the changes to Figure 3.4.1.1-1 preclude the need for these statements and they should have been included in the Reference letter as needing to be deleted.o The Bases changes in the Reference are changed to better identify the boundaries of Region A and the boundaries of operation in Single Loop.Additionally more description of the ANNA Stability Monitoring System is provided.

I MODIFICATIONS OF THE REFERENCE SUBMITTAL CHANGES