ML20148K642
| ML20148K642 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 03/25/1988 |
| From: | Gears G NRC OFFICE OF SPECIAL PROJECTS |
| To: | NRC OFFICE OF SPECIAL PROJECTS |
| References | |
| IEB-79-02, IEB-79-14, IEB-79-2, TAC-00015, TAC-00016, TAC-00017, TAC-15, TAC-16, TAC-17, NUDOCS 8803310255 | |
| Download: ML20148K642 (16) | |
Text
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NUCLEAR REGULATORY COMMISSION 5
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March 25, 1988 Docket Nos. 50-259/260/296 i
LICENSEE:
Tennessee Valley Authority FACILITY:
Browns Ferry Nuclear Plant, Unit 2
SUBJECT:
SU WARY OF MARCH 17, 19P,8 MEETING WITH TVA ON BROWNS FERRY UNIT 2 RESTART ISSUES - CRITERIA ON IEB 79-02/79-14 (TAC 00015/16/17)
On March 17,1988, members of the staff met with representatives of the i
TennesseeValleyAuthority(TVAorthelicensee). The purpose of the meeting was to provide a follow-up on issues discussed during a TVA/OSP criteria meeting held on February 29, 1988 (meeting details contained in Meeting Suneary dated March 4, 1988).
Enclosed is a list of the attendees.
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The staff in its ongoing review of TVA submittals on Browns Ferry seismic / civil issues as well as its review of these programs provided curing i
the February 29, 1988 meeting had identified one major area of concern; namely, the proposed IEB 79-02/79-14 program for Browns Ferry, Unit 2.
The staff relayed its desire to make the proposed IEB 79-02/79-14 program the primary focus of the March 17, 1988 meeting. TVA presented further details in its proposed IEB 79-02/79-14 program during the first part of the meeting.
The slides used in the TVA presentation are contained in Enclosure 2.
The staff made the following coments on the license's proposed IEB 79-14/79-02 program:
A.
100% of the Unit 2 Phase II walkdowns need to be done prior to Unit 2 restart.
B.
NRC will audit the TVA's effort when 20% of the Phase II program is completed.
C.
NRC will audit the TVA's effort again at 40-50% of Phase II program I
completion.
The staff indicated that its provisional acceptance of the licensee's proposed IEB 79-14/79-02 program is contigent on TVA's doing 100% of the 1
Phase II walkdowns (item A above) and acceptable audit findings during the 1
20% Phase II completion milestone (item B above). TVA's current schedule j
projects that approximately 50% of the Phase II effort will be complete prior to Unit 2 restart. TVA will be required to evaluate the generic implications of i
the findings from the completed portions of the Phase II analysis. These l
findings include all cases where the analysis shows FSAR design criteria have not been met. The 20% audit will be used to detennine whether program corrections will be needed.
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As part of the IEB 79-02/79-14 program TVA proposed interim criteria for Unit 2 restart modifications. The staff expressed a concern that TVA may use interim criteria te postpone required modifications without making a good faith effort to complete as many modifications as practical prior to restart. The staff stated its position that modifications coming cut of the Phase II program need sufficient TVA managerent involvement so that there is a good faith effort demonstrated to correct deviations prior to Unit 2 restart. TVA needs to discuss their modification effort with the NRC staff to determine its acceptability prior to the staff's 20% audit. At the meeting the staff expressed some concerns with the interim criteria. The interim criteria will be the subject of a later staff evaluation.
The TVA/OSP staff also discussed additional technical areas arising from its submittals on miscellaneous steel HVAC ductwork, drywell steel and small bore piping. These separate submittals were sent to the NRC on March 10, 1988.
The licensee provided specific answers to the staff's question. Revised information or other referenced material supporting the licensee's statement on these issues will be sent to the NRC shortly.
Original signed by Gerald E. Gears, Project Manager TVA Projects Division Office of Special Projects
Enclosures:
1.
List of Attendees 2.
TVA Slides used in Presentation cc w/ enclosures:
See next page Distributien Docket File NRC PDR Local PDR Those on attached list B\\
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DISTRIBUTION FOR MEETING
SUMMARY
DATED:
March 25, 1988 Facility: Browns Ferry Nuclear Plant, Unit 2*
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Docket File.
NRC PDR Local PDR Projects Reading S. Ebneter J. Axelrad S. Richardson G. Zech B. D. Liaw G. Gears D. Moran C. Jamerson OGC J. Rutberg F. Miraglia E. Jordan J. Partlow J. R. Fair R. A. Hermann T. Cheng J. Clifford ACRS(10)
Hon. M. Lloyd Hon. J. Cooper Hon. D. Sundquist Hon. A. Gore Dr. Henry Myers Mr. R. King, GA0 P. Gwynn J. Scarborough G. Marcus C. Miller T. Elsasser C. Ader TVA BFN Rdg. File cc: Copies sent to those on attached service list
Browns Ferry Nuclear Plant Units 1, 2, and 3
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CC:
General Counsel Regional Administrator, Region II Tennessee Valley Authority U.S. Nuclear Regulatory Comission 400 West Surnit Hill Drive 101 Marietta Street, N.W.
E11 B33 Atlanta, Georgia 30323 Knoxville, Tennessee 37902 Resident Inspector / Browns Ferry NP Mr. R. L. Gridley U.S. Nuclear Regulatory Comission Tennessee Valley Authority Route 12, Box 637 SN 157B Lookout Place Athens, A'abama 35611 Chattanooga, Tennessee 37402-2801 Mr. Richard King Mr. H. P. Pomrehn c/o U.S. GA0 Tennessee Valley Authority 1111 North Shore Drive Browns Ferry Nuclear Plant Suite 225, Box 194 i
P.O. Box 2000 Knoxville, Tennessee 37919 i
l Decatur, Alabama 35602 Dr. Henry Myers Science Advisor i
Mr. M. J. May Comittee on Interior Tennessee Valley Authority and Insular Affairs Browns Ferry Nuclear Plant U.S. House of Representatives i
P.O. Box 2000 Washington, D.C.
20515 Decatur, Alabama 35602 Mr. D. L. Williams Mr. S. A. White Tennessee Valley Authority Manager of Nuclear Power 400 West Sumit Hili Drive Tennessee Valley Authority W10 B85 6N 38A Lookout Place Knoxville, Tennessee 37902 1101 Market Street Chattanooga, Tennessee 37402-2801 Chaiman, Limestone County Comission P.O. Box 188 Athens, Alabana 35611 Claude Earl Fox, M.D.
State Health Officer State Departinent of Public Health State Office Building Montgomery, Alabama 36130 i
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ENCLOSURE 1
- Attendance Name Organization Gerald E. Gears NRC/OSP John R. Fair NRC/0SP B.D. Liaw NRC/OSP R.A. Hermann NRC/OSP Mark Durks NRC/0SP M. May Stone & Webster C. Mason LIC-BFN John McCall TVA/DNE Alan Chan SWEC Don Denton TVA/DNE Carlo Brillante TVA/DNE P. Polk TVA A. Banerjee SWEC Thomas Cheng NRC/OSP Jim Clifford NRC/OSP Paul Speidel TVA Steve Richardson NRC/OSP L
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i Ef CLOSURE 2 i
i BROWNS' FERRY UNIT 2 79-14/79-02 PROGRAM 5
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ORIGINAL DESIGN BASIS o
PHASE I t
- SCOPE
- STATUS o
PHASE II
- SCOPE PRIOR TO RESTART l
- STATUS o
SUMMARY
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BROWNS' FERRY UNIT 2 79-14/79-02 PROGRAM L
OUTLINE OF 3-PHASE PROGRAM P
PHASE I
- INITIAL WALKDOWN INSPECTIONS AND EVALUATIONS OF DISCREPANCIES PHASE II
- VERIFY AS-BUILT DATA MEETS FULL CODE COMPLIANCE PHASE III - IMPLEMENT MODIFICATIONS RESULTING FROM PHASE II O
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- o RIGOROUS ANALYSIS i
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CHART METHOD
- EDS REPORT
- TVA DESIGN CRITERIA t
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i BROWNS TERRY UNIT 2 79-14/79-02 PRCGRAM l
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NO DISCRIPANC PHASE I N
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EVALUATE t
DISCREPANCY i
if ISSUE MODS IF REQ'D I
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M FINAL WALKDOWN l 4
1P PHASE II l STRESS AND SUPPORT ANALYSIS l 1r l COMPLETE CALCULATIO{Sj l
i r l ISSUE MODS l i
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PHASE III IIMPLIMENT MODS l 1r l FINAL REPORT l j
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BROWNS FERRY UNIT 2 i
79-14/79-02 PROGRAM I
d PHASE I t
o 100% WALKDOWN OF PIPING AND SUPPORTS 1; ATTRIBUTES
- SINGLE PARTY SIGN-OFF a
- PROCESS CONTROLLED - MM1-97
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- IDENTIFIED DISCREPANCIES F;'
-..: SIGN DRAWINGS o-EVALUATED DISCREPANCIES l
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- ANALYSIS
- ENGINEERING JUDGEMENT o
PERFORMED MODIFICATIONS, AS REQUIRED t
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a BROWNS'FEBRY UNIT 2 79-14/79-02 PROGRAM STATUS PHASE I o
COMPLETED 100% WALKDOWN o
DEVELOPED DATABASE OF SUPPORTS o
ASSEMBLED DATA PACKAGES o
RESOLVED THE 635 DISCREPANCIES (UNITS 1, 2,
AND 3) o 89 DISCREPANCIES CAUSED MODIFICATIONS o
ADDRESSING AUDITS BY NRC, ENGINEERING ASSURANCE (TVA), NSRS (TVA), & QMS (TVA) e 6
t BROWNS
- FERRY UNIT 2 79-14/79-02 PROGRAM PHASE II 20% COMPLETE BY JUNE 1988 o
- 7 STRESS PROBLEMS 45-50% COMPLETE BY DECEMBER 1, 1988 (RESTART) o
- INSIDE PRIMARY CONTAINMENT
- TORUS ATTACHED PIPING
- SIGNIFICANT PORTIOri OF SAFETY SYSTEMS 4
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SELECTION BASIS o
o PIPE SIZE o
TEMPERATURE o
LOCATION PIPING CONFIGURATION o
o SUPPORT TYPES o
STRUCTURAL ATTACHMENTS e
s BROWNS. FERRY UNIT 2 79-14/79-02 PROGRAM
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PHASE II SELECTED STRESS PROBLEMS BUILDING PROBLEMS REACTOR BUILDING 1.
RESIDUAL HEAT REMOVAL DRYWELL 2.
CORE SPRAY REACTOR BUILDING 3.
CORE SPRAY DIESEL GENERATOR 4.
EMERGENCY EQUIPMENT BUILDING COOLING WATER REACTOR BUILDING 5.
RESIDUAL HEAT REMOVAL SERVICE WATER 6.
MAIN STEAM SAFETY RELIEF DRYWELL 7.
EMERGENCY EQUIPMENT COOLING REACTOR BUILDING WATER 9
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i BROWNS. FERRY UNIT 2 79-14/79-02 PROGRAM PHASE II STATUS 23 PRELIMINARY STRESS ANALYSIS o
o 16 PASS DESIGN CRITERIA o
7 IN-PROCESS 5
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BROWNS. FERRY UNIT 2 79-14/79 ~02 PROGRAM J
SUMMARY
ORIGINAL DESIGN BASED ON STATE-OF-THE-ART APPROACH IN THE o
ORIGINAL DESIGN TIME FRAME PHASE I PROVIDES TECHNICAL JUSTIFICATION FOR AS-BUILT o
CONFIGURATIONS o
PHASE II PRE-RESTART SCOPE (45-50%) PROVIDES ADDITIONAL ASSURANCE OF TECHNICAL ADEQUACY BROWNS FERRY UNIT 2 PIPING AND SUPPORTS WILL PROVIDE THEIR INTENDED FUNCTION FOR ALL SPECIFIED PLANT CONDITIONS 1
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