ML16341C490
| ML16341C490 | |
| Person / Time | |
|---|---|
| Site: | Summer, Diablo Canyon, 05000000, Atlantic Nuclear Power Plant |
| Issue date: | 08/22/1982 |
| From: | Eisenhut D Office of Nuclear Reactor Regulation |
| To: | Ahearne J, Gilinsky A, Palladino N NRC COMMISSION (OCM) |
| Shared Package | |
| ML16340C794 | List: |
| References | |
| TASK-AS, TASK-BN-82-81 BN--82-81, BN-82-81, NUDOCS 8209160075 | |
| Download: ML16341C490 (10) | |
Text
Docket Nos. 50-395, 50-275/323 and 50-437 IIEMORANDUM FOR:
Chairman Palladino Commissioner Gilinsky Coranissioner Ahearne Commissioner Roberts Comissioner Asselstine FROM:
SUBJECT:
Darrell G. Eisenhut'.
Director Division of Licensing, ONRR INFORMATION ITEN REGARDING CONTROL ROD DRIVE GUIDE TUBE SUPPORT PIN FAILURES AT WESTINGHOUSE PLANTS FOR:
(BN 82-81)
Virgil C. Sumer Nuclear Station, Unit 1 Diablo Canyon Nuclear Power Plant, Units 1
3 2 Floating Nuclear Plant, Units 1-8 In accordance with present NRC procedures regarding Board Notifications, the enclosed material is provided to the Commission for information.
The material involves the failures of the support pins that are attached to the bottom of the control rod drive guide tubes in Westinghouse designed reactors.
The support pins align the bottom of the control rod drive guide tube assembly into the top of the upper core plate in a manner that provides lateral support and accommodates thermal expansion of the guide tube relative to the core plate.
Some of the safety concerns to which this information relates are failure to
- scram, scram system performance during design basis accidents, and potential damage to safety systems and components due to loose parts in the RCS.
This material is applicable to all Westinghouse plants.
We will transmit move information and the staff assessment as it becomes available.
Oz iginal sisned. bg, Derrell G. Rigeabgg Darrell G. Eisenhut, Director Division of Licensing Office of Nuclear Reactor Regulation
Enclosure:
As stated cc:
Contact:
Ja is Kevvigan.
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BOARD NOTIFI CATION 82-81 CONTROL ROD DRIVE GUIDE TUBE SUPPORT PIN FAILURES AT W PLANTS K Sunnier ZDiablo Canyon w FNP 1-8 Cal 1 away Comanche Peak "w/enclosures Document Control (50-395, 50-275/323, 50-437, 50-445/446, STN50-483,)
NRC PDR L PDR PRC System NS IC Branch Reading (LBbl, LB83, LB84)
- J.
Youngblood F. Miraglia E.
Adensam W.
Kane
- B. Buckley*
C. Stahl e
- G. Edison
- S. Burwell
- M. Rushbrook
- J.
Lee
- M. Duncan
- T. Novak/J.
Kerrigan L. Berry
- D. Eisenhut/R.
Purple M. Williams
- H. Denton/E.
Case
- PPAS RE Vollmer H. Thompson R. Mattson S. Hanauer
- Attorney, OELD*
ISE Regional Administrator (Region
)
W. J. Dircks, EDO (3)
A. Bennett, OELD (3)*
E. Christenbury, OELD*
J. Scinto, OELD*
cc:
Board Service List
8 ~ ~ p 1
DISTRIBUTION OF BOARD NOTIFICATION Summer Unit I/.CONN Docket No. 50-395 ACRS Members Herbert Grossman, Esq.
Dr. Frank F". Hooper Christine N. Kohl, Esq.
Nr. Gustave A. Linenberger Alan S. Rosenthal, Esq.
Howard A. Wilber, Esq.
Mr. Brett Allen Bursey George Fischer, Esq.
Joseph B. Knotts, Esq.
Randolph R. Mahan, Esq.
Mr. John Ruoff ~
Richard P. Wilson, Esq.
Atomic Safety and Licensing Board Panel Atomic Safety and Licensing Appeal Panel Docketing and Service Section Document Management Branch Dr. Robert C. Axtmann Nr. Myer Bender Dr. Max W. Carbon Mr. Jesse C. Ebersole Mr. Harold Etherington Dr. William Kerr Dr. Harold W. Lewis Dr. J.
Carson Mark Nr. William N. Nathis Dr. Dade W. Noeller Dr. David Okrent Dr. Nilton S. Plesset Mr. Jeremiah J.
Ray Dr. Paul C.
Shewmon Dr. Chester P. Siess Nr. David A. Ward
DISTRIBUTION OF BOARD NOTIFICATION Diablo Canyon Units 182/COMM Docket Hos. 50-275/323 OL Leonard Bickwit, Esq.
Mr. Samuel Q. Chilk Nr. Glenn 0. Bright Dr. John H. Buck Dr.
W.
Reed Johnson Dr. Jerry Kline Thomas S. Moore, Esq.
John F. Wolf, Esq Ms. Elizabeth Apfelberg Andrew Baldwin, Esq.
Nr. Richard E. Blankenburg Nr. Herbert H. Brown Philip A. Crane, Jr.,
Esq.
Nr. Frederick Eissler David S. Fleischaker, Esq.
Nrs.
Raye Fleming Arthur C. Gehr, Esq.
Mr. Byron S. Georgiou Mr. Mark Gottlieb Mr. Richard B. Hubbard Janice E. Kerr, Esq.
Mr. John Marrs Bruce Norton, Esq.
Joel R. Reynolds, Esq.
Nr. James
- 0. Schuyler Mr. Gordon Silver Paul C. Valentine, Esq.
Harry M. Willis Atomic Safety and Licensing Board Panel Atomic Safety and Licensing Appeal Panel Docketing and Service Section Document Management Branch ACRS Members Dr. Robert C. Axtmann Mr. Nyer Bender Dr. Max W. Carbon Mr. Jesse C. Ebersole Mr. Harold Etherington Dr. William Kerr Dr. Harold W. Lewis Dr. J.
Carson Mark Mr. William N. Nathis Dr. Dade W. Moeller Dr. David Okrent Dr. Milton S. Plesset Mr. Jeremiah J.
Ray Dr. Paul C.
Shewmon Dr. Chester P. Siess Nr. David A. Ward
t
DISTRIBUTION OF BOARD NOTIFICATION Floating Nuclear/SCOMM Docket No. 50-437 ACRS Members Dr. George A. Ferguson Dr. David l,. Hetrick Dr.
W. Reed'ohnson Christine N. Kohl, Esq.
Dr. David R. Schink Howard A. Wilber, Esq.
Sheldon J. Wolfe, Esq.
Mr. Mitchell Attalla Vincent W. Campbell, Esq.
Mary M. Cheh, Esq.
City of Brigantine ATTN:
Mr. Geroge 'B. Ward Troy B. Conner, Esq.
Barton Z. Cowan, Esq.
Thomas M. Daugherty, Esq.
John J.
- Degnan, Esq.
David S. Fleischaker, Esq.
Harold P. Green, Esq.
Dr. Alden McLellan Keith A. Onsdorff, Esq.
Robert M. Rader, Esq.
Dr. Willard W. Rosenberg Carl Valore, Esq.
Mr. James A. Walker Ellyn R. Weiss, Esq.
Mr. John H. Williamson Dr. Robert C. Axtmann Mr. Myer Bender, Dr. Max W. Carbon Mr. Jesse C. Ebersole Mr. Harold Etherington Dr. William Kerr Dr. Harold W. Lewis Dr. J.
Carson Mark Mr. William M. Mathis Dr. Dade W. Moeller Dr. David Okrent Dr. Milton S. Plesset Mr. Jeremiah J.
Ray Dr. Paul C.
Shewmon Dr. Chester P. Siess Yir. David A. Ward Atomic Safety and Licensing Board Panel Atomic Safety and Licensing Appeal Panel Docketing and Service Section Document Management Branch
/
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