ML20154A406

Summary of 880414 Meeting W/Util in Rockville,Md Re Differences Between Units 1 & 2 Nuclear Performance Plan. List of Attendees & Licensee Handout Encl

ML20154A406
Person / Time
Site:	Sequoyah
Issue date:	05/04/1988
From:	Donohew J NRC OFFICE OF SPECIAL PROJECTS
To:	NRC OFFICE OF SPECIAL PROJECTS
References
IEB-79-14, NUDOCS 8805130246
Download: ML20154A406 (27)

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May 4, 1988 Docket No. 50-327 LICENSEE: Tennessee Valley Authority FACILITY: Sequoyah Nuclear Plant, Unit 1

SUBJECT:

APRIL 14, 1988 MEETING WITH TENNESSEE VALLEY AUTHORITY (TVA) TO DISCUSS DIFFERENCES BETWEEN SEQUOYAH UNITS 1 AND 2 IN THE SEQUOYAH NUCLEAR PERFORMANCE PLAN On Thursday, April 14, 1988, a meeting was held at the Office of Special Projects (0SP) headquarters, NRC, Rockville, Maryland with TVA. The meeting was held to discuss differences between Sequoyah Unit 1 and Unit 2 civil engineering issues discussed in the Sequoyah Nuclear Perfomance Plan (SNPP). Attachment 1 is the list of individuals that attended the meeting. is the material handed out by TVA to the staff.

There was no material handed out by the staff. The following is a sumary of the significant items discussed and the actions, if any, taken or proposed.

The SNPP through Revision 2 was submitted by TVA in its letter dated July 2, 1987. The SNPP is TVA's response to the staff's 10 CFR 50.54(f) letter dated September 17, 1985 and explains TVA's plan to return Units 1 and 2 to power operation. The staff's revised Safety Evaluation Report (SER) on the SNPP for Unit 2 was issued March 25, 1988.

In its letter dated March 31, 1988, TVA identified civil engineering issues as one of four areas in the SNPP where differences exist between Unit 1 and Unit 2 in the SNPP. Section 111.15.1 of the SNPP on civil engineering issues discusses TVA's actions on IE Bulletin 79-14. This meeting was held to discuss differences between Unit 1 and Unit 2 in this area. TVA will be submitting a revised SNPP which will include this information by April 29, 1988.

The agenda for the meeting is Page 2 of Attachment 2.

The two areas in the SNPP civil engineering issues to be discussed were (1) closure of IE Bulletin 79-14 for Unit 1 and (2) Unit 1 programs using interim criteria for the restart of Unit 1. -TVA also presented the schedule for the restart of Unit 1.

This is on Page 4 of the handout.

r TVA discussed their plan for closure of IE Bulletin 79-14 at Sequoyah.

The bulletin had been previously closed by TVA for Sequoyah Unit 2; however, TVA l

had not comp'leted the resolution of the bulletin for Unit 1.

TVA proposed a program for the resolution of IE Bulletin 79-14 for Sequoyah Unit 1.

TVA's proposed program included all Category I (seismic) rigorously analyzed piping that had not been covered by Unit 2 programs.

TVA's program plan calls for completion of the field walkdowns and evaluations of these systems prior to Unit I restart.

TVA proposes to use the same criteria for determining restart modifications that were used on Unit 2.

In addition to the program plan for rigorously analyzed piping, TVA proposed to implement the same two phase program for alternately analyzed piping systems that had been implemented on Unit 2.

This proposed plan will result in the final resolution of IE fOCK050003p7 246 0D0504 P

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-,Bulletin 79-14 walkdowns and evaluations for alternately analyzed piping as a post restart effort. The staff did not reach a conclusion on the acceptability of this proposed approach at the meeting.

TVA presented the Unit 1 civil engineering programs using interim criteria.

These are on Pages 17 through 20 of the handout. The interim criteria used are the staff approved restart criteria for Unit 2 used to determine which modifications had to be completed before restart and which ones could be deferred until after restart.

TVA discussed the following Unit 1 civil engineering issues using interim criteria:

(1) rigorous analysis pipe support, (2) alternately analyzed piping and supports, and (3) Category I cable tray supports.

TVA stated that the interim criteria to be used for Unit I will be the same as Unit 2.

Therefore, there will be no differences between Unit 1 and Unit 2 for these three programs.

Original Signed by Robert A. Hermann for Jack N. Donohew, Jr., Project Manager Sequoyah Unit 1 TVA Projects Division Office of Special Projects Attachments:

1.

List of Attendees 2.

Licensee's Handout cc w/ attachments:

See next page Distribution Docket File NRC PDR Local PDR Those on Attached List

• SEE PREVIOUS CONCURRENCE OSP:TVA OSP:TVA/PM*

OSP:TVA/TP*

OSP:TVA/BC*

TVA:

JGriffin JDonohew:as JFair RShewmaker RHe an 5/ /88 5/03/88 5/03/88 5/03/88 5/e//88

1

,Bulletin 79-14 walkdowns and evaluations for alternately analyzed piping as a post restart effort.

The staff did not reach a conclusion on the acceptability of this proposed approach at the meeting.

TVA presented the Unit 1 civil engineering programs using interim criteria.

This is on Pages 17 through 20 of the handout. The interim criteria used is the staff approved restart criteria for Unit 2 used to determine which modifications had to be completed before restart and which ones could be deferred until after restart.

TVA discussed the following Unit 1 civil engineering issues using interim criteria:

(1) rigorous analysis pipe support, (2) alternately analyzed aiping and supports, and (3) Category I cable tray supports.

TVA stated that tie interim criteria to be used for Unit I will be same for as Unit 2.

Therefore, there will be no differences between Unit 1 and Unit 2 for these three programs.

Jack N. Donohew, Jr., Project Manager Sequoyah Unit 1 TVA Projects Division Office of Special Projects Attachments:

1.

List of Attendees 2.

Licensee's Handout cc w/ attachments:

See next page j

Distribution Docket File NRC PDR i

Local PDR Those on Attached List P:TVj/

OSP.%/PM OSP:TVA/TP OSP:TVA/

TVA:A/AD/P J,

fin JDononew:as JFair.(,E RShewm RHermann 5

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ATTACHMENT 1 MEETING WITH TEhNESSEE VALLEY AUTHORITY (TVA)

TO DISCUSS SEQUOYAH UNIT 1 DIFFERENCES FROM UNIT 2 IN CIVIL ENGINEERING ISSUES Name Organization

• 3-Nonohew OSP/NRC R. Pierson OSP/NRC J. Hosmer TVA J. McCall TVA M. Harding TVA J. Fair OSP/NRC R. Hermann OSP/NRC T. Cheng OSP/NRC' G. Sanders G/C C. Whitehead G/C L. Budlong SWEC T. Bostrom Bechtel R. Hernandez TVA W. Leininger G/C R. Grave TVA W. Smathers TVA D. Lundy TVA W. Massie TVA R. Kundalker TVA J. Ziegler TVA D. Terrill TVA OSP -

Office of Special Projects G/C -

Gilbert Commonwealth SWEC -

Stone and Webster Engineering Corporation 0

5

TVA - SEQU~OYAH UNIT 1 RESTART PROGRAM PRESENTATION TO USNRC APRIL 14,1988 I

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SEQUOYAH UNIT 1 PROGRAM PRESENTATION AGENDA i

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INTRODUCTION M. H AllDI NG II.

UNIT 1 SCHEDULE OVERVIEW R. G ROSS I

III.

UNIT 1 RIGOROUS ANALYSIS AND 7914 PROGRAM W.J. LEININGE R

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UNIT 1 PROGRAMS UTILIZING INTERIM CRITERI A:

Rigorously Analyzed Piping W. L. SM ATIIERS e

i Alternately Analyzed Piping D. L. LUNDY l

e Cab!c Tray Supports R. KUNDALKAR e

4 V.

SUMMARY

R. G ROSS

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SQN.- UNIT 1 SCHEDULE I

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JUNE 30 i

DESIGN AND CONSTRUCTION MODE 4 CRITICALITY COMPLETE i

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- CLOSE PAPERWORK

- IIEAT-UP AND TEST

- SYSTEM ALIGNMENT 4

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UNIT 1 RIGOROUS ANALYSIS AND 79-14 PROGRAM N

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PROGRAM PHILOSOPilY Utilize Similarity Of Unit 1 And Unit 2 e

Closure Of 79-14 Integrated Evaluation Of:

e As-Built Data D

CAQRs NCRs PIRs SCRs As-Built Discrepancies

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B.

PROGRAM ELEMENTS Field Walkdowns Review Of Record Analysis e

Support Calculation Upgrade / Regeneration e

e Issue Modifications Restart Post Restart O

C.

SCOPE:

CATEGORY I RIGOROUSLY ANALYZED PIPING NOT COVERED BY UNIT 2 PROGRAMS i

e 25 Systems 1

e 162 Analyses e

2875 Supports 1

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COMPARISON OF UNIT 1/ UNIT 2 C.ALCULATION REGENERATION PROGRAMS UNIT I UNIT 2 Number Of Supports In Scope 2875 5612 e

e Number Of Itestart Modifications 125 181 (83 To Date) e

% llestart Modifications 4.3%

3.2%

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e Number Of Post flestart Modifications 250 447 (114 To Date)

% Post Ilestart Modifications 8.7%

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PROGRAM STATUS Walkdowns - Complete Analysis Reviews - Complete e

Support Evaluations - 75% Complete e

e Issue Of Modifications Restart - 60% Complete Q

Post Restart-25% Complete O

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IE BULLETIN 79-14 PLAN Objective Submit A Iteport Summarizing 79-14 Activities On Unit 1 And Common Systems Scope Of 79-14 Iteport e

Itigorously Analyzed Unit 1 Piping Common Systems And Unit 1 Piping In Unit 2 Scope Safety Itclated Alternately Analyzed Piping 21/2 Inches And Larger

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u PIIYSICAL SCOPE OF

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UNIT 1, UNIT 2, AND COMMON PIPING

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IE BULLETIN 79-14 APPROACII i

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Rigorously Analyzed Piping 1n Unit 1 Program e

I Close PriorTo Restart i

Existing Data And Discrepancies i

Supplemental Walkdowns j

W Functional Verification Walkdowns 4

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IE BULLETIN 79-14 APPROACII(Cont'd)

I Common Systems e

Close Prior To Restart Previous Walkdowns Functional Verification Walkdowns Unit 2 Calculation Regeneration Program

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F.

IE BULLETIN 79-14 APPROACl2 (Cont'd)

Alternately Analyzed Piping e

Closed As Part Of Phase II Field Walkdowns Criteria Review 10% Of 79-14 Scope I

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SUMMAltY AND CONCLUSIONS Comprehensive Program e

Support Calculation Regeneration o

e 79-14 Closure Plan 1

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UNIT I IIIGOltOUS ANALYSIS PIPE SUPPORTS Same As Unit 2 Calculation Itegeneration SQN-DC-V-24.2 CEB-CI-21.89 To Prioritize Modifications e

125 Restart Modifications (Estimated)

(

00 e

250 Post Restart Modifications (Estimated)

Full Compliance fly Unit 1 Cycic 4 e

II.

ALTERNATELY ANALYZED PIPING AND SUPPORTS Same Program As Unit 2 e

Phase I For Restart

- 83 Modifications (Same Percentage As Unit 2)

Full Compliance With SQN-DC-V-24.2 Phase 11 Ily Unit i Cycle 4 e

O UNIT 1 EVALUATION OF t

CATEGORY I CABLE TRAY SUPPORTS l

Interim Acceptance Criteria The Same For Unit 1 And Unit 2 e

C.T. Supports Evaluated Per Interim Criteria e

MODS To Supports Will He Complete PriorTo ltestart e

O Full compliance ny unit i cycle 4 e

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SUMMARY

e Schedule 79-14 Itcport Submitted By July 15,1988 e

Three Programs With Interim Criteria e

N Full Compliance By Unit 1 Cycle 4 e

e Questions G

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General Counsel Regional Administrator, Region II Tennessee Valley Authority U.S. Nuclear Regulatory Comission 400 kest Sumit Hill Drive 101 Marietta Street, N.W.

E11 833 Atlanta.. Georgia 30323 Knoxville, Tennessee 37902 Resident Inspector /Sequoyah NP Mr. R. L. Gridley c/o U.S. Nuclear Regulatory Comission Tennessee Vc11ey Authority 2600 Igou Ferry Road 5N 157B Lookout Place Soddy Daisy. Tennessee 37379 Chattanooga, Tennessee 37402-2801 Mr. Richard King Mr. H. L. Abercrombie c/o U.S. GAO Tennessee Valley Authority 1111 North Shore Drive Sequoyah Nuclear Plant Suite 225, Box 194 P.O. Box 2000 Xnoxville, Tennessee 37919 Soddy Daisy, Tennessee 37379 Tennessee Department of Health Mr. M. R. Harding and Environment Tennessee Valley Authority ATTN:

Director, Bureau of Environment Sequoyah Nuclear Plant T.E.R.R.A. Building, 1st Floor P.O. Box 2000 150 9th Avenue North Soddy Caisy, Tennessee 37379 Nashville, Tennessee 37219-5404 Mr. D. L. Williams Mr. Michael H. Mobley, Director Tennessee Valley Authority Division of Radiological Health j

400 West Sumit Hill Drive T.E.R.R.A. Building, 6th Floor i

W10 B85 150 9th Avenue North a

Knoxville, Tennessee 37902 Nashville, Tennessee 37219-5404 County Judge Dr. Henry Myers, Science Advisor Hamilton County Courthouse Comittee on Interior 1

Chattanooga, Tennessee 37402 and Insular Affairs U.S. House of Representatives Washington, D.C.

20515 Mr. S. A. White Manager of Nuclear Power i

Tennessee Valley Authority 6N 38A Lookout Place 1101 Market Street Chattanooga, Tennessee 37402-2801 l

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3 DISTRIBUTION FOR MEETING SltEARY DATED: May 4, 1988 Facility: Sequoyah Nuclear Plant, Unit 1*

Docket File NRC PDR Local PDR Projects Reading S. Ebneter J. Axelrad S. Richardson R. A. Hermann J. Donohew Licensing Assistant 0GC J. Rutberg F. Miraglia E. Jordan J. Partlow ACRS (10)

Hon. M. Lloyd Hon. J. Cooper Hon. D. Sundquiest Hon. A. Gore Dr. Henry Myers Mr. R. King, GA0 P. Gwynn J. Scarborcugh G. Marcus C. Miller T. Elsasser C. Ader TVA' SQN Rdg. File R. Pierscn J. Fair R. Hermann T. Cheng

• cc: Licensee / Applicant & Service List 6

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