ML20058J550
| ML20058J550 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 10/31/1993 |
| From: | Mershcoff E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Richard Anderson CAROLINA POWER & LIGHT CO. |
| References | |
| NUDOCS 9312140152 | |
| Download: ML20058J550 (16) | |
Text
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OCT 31 1993
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Docket Nos.:
50-325, 50-324 i
License Nos.: DPR-71, DPR-62 Carolina Power and Light Company ATTN: Mr. R. A. Anderson Vice President Brunswick Steam Electric Plant P. O. Box 10429 Southport, NC 28461 Gentlemen:
SUBJECT:
MEETING
SUMMARY
- BRUNSWICK This refers to the management meeting conducted in the Region II Office on October 12, 1993. The purpose of the meeting was to discuss Nuclear Engineering Department-related issues. A list of attendees, and a copy of your slides are enclosed.
It is our_ opinion that this meeting was beneficial in that it provided a better understanding of Engineering's strengths, challenges, and future goals. Of particular interest were the actions you have taken/ planned with regard to. core shroud repairs on Unit 1.
In accordance with Section 2.790 of the NRC's " Rules of Practice," Part 2, Title 10, Code of Federal Regulations, a copy of this' letter and its enclosures will be placed in the NRC public document room.
Should you have any questions concerning this matter, please contact us.
Sincerely, 130013 Ellis W. Merschoff, Director Division of Reactor Projects
Enclosures:
1.
List of Attendees 2.
Licensee Slides cc w/encls:
H. W. Habermeyer, Jr.
'Vice President Nuclear. Services Department Carolina Power & Light Company P. O. Box 1551
- Mail OHS 7 Raleigh, NC 27602 (cc w/encls cont'd - :ee page 2)
I 9312140152 931031 i
PDR ADOCK 05000324 Al5(JE
I l
i OCT 31 - 1993 i
Carolina Power and Light Company 2
(cc w/encls cont'd)
J. P. Cowan Plant Manager Unit 1 Brunswick Steam Electric Plant P. O. Box 10429 Southport, NC 28461 C. C. Warren Plant Manager Unit 2 Brunswick Steam Electric Plant P. O. Box 10429 Southport, NC 28461 l
Mark S. Calvert l
Associate General Counsel i
Brunswick Steam Electric Plant P. O. Box 10429 Southport, NC 2846'1
)
Kelly Holden, Chairman Board of Commissioners P. O. Box 249 Bolivia, NC 28422 Dayne H. Brown, Director Division of Radiation Protection N. C. Department of Environment, Commerce & Natural Resources P. O. Box 27687 l
Raleigh, NC 27611-7687 Karen E. Long Assistant Attorney General State of North Carolina P. O. Box 629 Raleigh, NC 27602 Robert P. Gruber Executive Director Public Staff - NCUC
.P. O. Box 29520 Raleigh, NC - 27626-0520 Public Service Commission State of South Carolina P. O. Box 11649 l
Columbia, SC 29211
. bcc w/encls:
(See page 3)
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DCT 3 l 1993 Carolina Power and Light Company 3
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l Document Control Desk H. Christensen, RII P. Milano, NRR t
NRC Resident Inspector U.S. Nuclear Regulatory Comission Star Route 1, Box 208 Southport, NC 28461 l
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l ENCLOSURE I i
LIST OF ATTENDEES j
i Carolina Power and Licht Company R. A. Anderson, Vice President, Brunswick Nuclear Project l
W. R. Campbell, Vice President, Nuclear Engineering Department
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G. D. Miller, Manager, Technical Support R. E. Grazio, Manager, Brunswick Engineering Support Services W. Levis, Manager, Regulatory Affairs Nuclear Reaulatory Commission S. D. Ebneter, Regional Administrator, Region II (RII) i A. F. Gibson, Director, Division of Reactor Safety (DRS), RII E. W. Merschoff, Director, Division of Reactor Projects (DRP), RII J. R. Johnson, Deputy Director, DRP, RII G. C. Lainas, Assistant Director for Region 11 Reactors, Office of Nuclear Reactor Regulation (NRR) 1 S. S. Bajwa, Acting Project Directorate II-I, NRR H. O. Christensen, Acting Chief, Reactor Projects Branch I, DRP, RII C. A. Julian, Chief, Engineering Branch, DRS, RII P. D. Milano, Project Manager, NRR l
R. L. Prevatte, Senior Resident Inspector - Brunswick, DRP, RII j
J. E. Tedrow, Senior Resident Inspector - Harris, DRP, RII R. E. Carroll,-Project Engineer, Section IA, DRP, RII l
L. S. Mellen, Reactor Inspector, DRS, RII J. J. Lenahan, Reactor Inspector, DRS, RII i
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CP&L PRESENTATION NRC / CP&L MEETING ENGINEERING Atlanta, Georgia October 12,1993
4 AGENDA I.
INTRODUCTION R.A. ANDERSON 11.
ASSESSMENT OF ENGINEERING W. R. CAMPBELL CHALLENGES AND OPPORTUNITIES Ill.
CHANGES TO ENGINEERING W. R. CAMPBELL STRATEGY AND ORGANIZATION IV.
BRUNSWICK ENGINEERING R. E. GRAZIO l
CHALLENGES V.
CORE SHROUD INVESTIGATION G. D. MILLER VI.
SUMMARY
W. R. CAMPBELL R.A. ANDERSON
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IMPROVE ORGANIZATION EFFECTIVENESS e
IMPROVE INDIVIDUAL PERFORMANCE e
BECOME MORE PROACTIVE AND DEVELOP TECHNICAL STRATEGIES FOR DEALING WITH CONCERNS BEFORE A PLANT PERFORMANCE PROBLEM EXISTS e
STRENGTHEN SELF-ASSESSMENT AND CORRECTIVE ACTION i
PROGRAMS WITHIN ENGINEERING e
BECOME A MORE EFFICIENT, COST-EFFECTIVE ENGINEERING ORGANIZATION l
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l-i CHANGES TO ENGINEERING STRATEGY AND ORGANIZATION i
IMPROVE ENGINEERING - PLANT STAFF RELATIONSHIP INCREASED TECHNICAL OWNERSHIP i
INTEGRATED STAFFING / CONTRACTOR REDUCTION PROGRAM IMPROVEMENTS - CONFIGURATION CHANGE MANAGEMENT I
TRANSITION TO SITE - FOCUSED ORGANIZATION BACKLOG REDUCTION INITIATIVES CORRECTIVE ACTION / SELF-ASSESSMENT PROGRAM ENHANCEMENTS
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BRUNSWICK ENGINEERING CHALLENGES BRUNSWICK NED ISSUES CULTURE
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John O'Connor Eric M. Northeim M. W. Foerster Electrical Mechanical Project Controls j
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Shroud Project Manager Garry Miller Visual and UT l
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Unit 1 Modification Inspection U2 RFO Design Installation Coordination Inspection Planning Unit I and Unit 2 Vaughn Wagoner Jack Purkis John Langdon Blair Potcate t
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SHROUD CRACKING l
Brunswick Nuclear Plant CAUSAL FACTORS-METALLURGICAL
SUMMARY
Intergranular Stress Corrosion Cracking (IGSCC) at Top Guide Support Ring IGSCC with possible irradiation Assisted Stress Corrosion Crack (IASCC) propagation at core mid-plane seam welds.
Cracks are intergranular multi-branched and filled with oxides.
CAUSAL FACTORS:
Environmental Factors:
Highly Oxidizing High Coolant Conductivity Early in Operating History Stress Factors:
Residual Stresses (welding and fit-up)
Surface Stresses / Distortion (machining and grinding)
Operating Stresses Material Factors Sensitization (thermal and fluence)
Orientation (short transverse plate exposed to coolant)
Cold Work (machining and grinding)
SHROUD REPAIR Brunswick Nuclear Plant SCHEDULE-October 10,1993 Finalize Design of Shroud Repair Blocks October 16 - 23,1993 Mock-up Testing of Electric Discharge Machining (EDM)
Tooling Equipment at GE - San Jose Complete Remaining invessel Visual Inspections October 17,1993 October 25,1993 Begin EDM of Bolt Holes in Shroud at BNP Installation of Shroud Repair Blocks at BNP November 5 - 28,1993 November 30,1993 Begin Fuel Loading
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