ML20004F462
| ML20004F462 | |
| Person / Time | |
|---|---|
| Site: | Monticello, Dresden, Davis Besse, Palisades, Perry, Fermi, Kewaunee, Point Beach, Byron, Braidwood, Prairie Island, Callaway, Duane Arnold, Clinton, Cook, Quad Cities, La Crosse, Big Rock Point, Zion, Midland, LaSalle, Zimmer, 05000340, Bailly, Marble Hill  |
| Issue date: | 03/31/1981 |
| From: | Carroll D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Wright G ILLINOIS, STATE OF |
| References | |
| NUDOCS 8106180392 | |
| Download: ML20004F462 (19) | |
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Illinois Department of Nuclear Safety ATTN:
Mr. Gary N. **Gaat Deputy Director 1035 Outer Park Drive Springfield, IL 62704 Gentlemen:
The enclosed IE Circular No. 81-05 titled "Self-Aligning Rod End Bushings for Pipe Supports" was sent to the licensees listed below for information on March 31, 1981:
American Electric Power Service Corporation Indiana and Michigan Power Company D. C. Noh 1, 2 (50-315, 50-316)
Cincinnati Gas & Electric Company Zimmer (50-358)
Cleveland Electric Illuminating Company Perry 1, 2 (50-440, 50-441)
Commonwealth Edison Company Braidwood 1, 2 (50-456, 50-457)
Byron 1, 2 (50-454, 50-455)
Dresden 1, 2, 3 (50-10, 50-237, 50-249)
LaSalle 1, 2 (50-373, 50-374)
Quad-Cities 1, 2 (50-254, 50-26*)
Zion 1, 2 (50-295, 50-304)
Consumers Power Company Big Rock Point (50-155)
Midland 1, 2 (50-329, 50-330)
Palisades (50-255)
Dairyland Power Cooperative LACBWR (50-409)
Detroit Edison Company Fermi 2 (50-341)
Illinois Power Company Clinton 1, 2 (50-461, 50-462)
Iowa Electric Light and Power Company Duane Arnold (50-331)
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-Illinois Department of Nuclear Safety Northern Indiana Public Se vice Company Bailly (50-367)
Northern States Power Company Monticello (50-263)
Prairie Island 1, 2 (50-282, 50-306) i Public Service of Indiana Marble liill 1, 2 (50-546; 50-547)
Toledo Edison Company Davis-Besse 1 (50-346)
Union Electric Company i
Callaway 1, 2 (50-483, 50-486)
Wisconsin Electric Power Company Point Beach 1, 2 (50-266, 50-301)
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Wisconsin Public Service Corporation Kewaunee (50-305) i Sincerely, h
Dorothy E. Carroll, Chief Word Processing and Document Control Section 1
Enclosure:
IE Circular No. 81-05 l
cc w/ enc 1:
Mr. D. W. Kane, Sargent & Lundy Central Files Reproduction Unit NRC 20b AEOD -
Resident Inspectors, RI.;
J. G. Keppler, RIII Acting Division Directors, RIII P. R. Wohld, RII!
RIII Carroll /np 3/31/81 2
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Docket No. 50-315' i
Docket No. 50-316 American Electric Power Service Corporation Indiana and Michigan Power Company ATTN:
Mr.' John E. Dolan Vice Chairman
, Engineering-2 Broadway New-York, NY 10004 cc w/ encl:
D. V. Shaller, Plant Manager Central Files
' AD/ Licensing AD/ Operating Reactors AEOD Resident Inspector, RIII PDR Local PDR NSIC TIC-Ronald Callen, Michigan Public Service Commission i
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I Docket Nos. 50-10, 50-237, 50-249; 50-254, 50-265; 50-295, 50-304; 50-373, 50-374; 50-454, 50-455; 50-456, 50-457 Gpanonwealth Edison Company f
ATTN:
Mr. Cordell Reed i
Vics President Post Office Box 767 Chicago, IL 60690 cc w/ enc 1:
J. S. Able, Director of Nuclear Licensing D. J. Scott, Station
. Superintendent N. Kalivianakis, Plant Superintendent K. L. Graesser, Station Superintendent L. J. Burke, Site Construction Superintendent T. E. Quaka, Quality Assurance Supervisor R. H. Holyoak, Station Superintendent B. B. Stephenson, Project Manager V. I. Schlosser, Project Manager R. E. Querio, Station Superintendent Gunner Sorensen, Site Project Superintendent R. Cosaro, Project Superintendent J. F. Gudac, Station Superintendent Central Files AD/ Licensing AD/ Operating Reactors AEOD Resident Inspectors, RIII PDR Local PDR NSIC TIC Mary Jo Murray, Office of Assistant Attorney General Myron M. Cherry s
. Docket No. 50-358 Cincinnati Gas and Electric Company-
_ ATTN: Mr. Earl A. Borgmann Senior Vice President Engineering Services and Electric Production 139 East 4th Street Cincinnati, OH 45201 cc w/ encl:
J. R. Schott, Plant Superintendent Central Files AD/ Licensing AD/ Operating Reactors AE0D Resident Inspector, RIII PDR Local PDR NSIC TIC Harold W.,Kohn, Power Siting Commission Citizens Against a Radioactive Environment Helen W. Evans, State of Ohio
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,o Docket No. 50-440 Locket No. 50-441
-F The Cleveland Electric Illuminating-f Company ATTN:
Mr. Lalwyn R.' Davidson
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Engineering and Construction
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Post Office Box 5000 Cleveland, OH 44101 j
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l Central Files i
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>I Harold W. Kohn, Power i
Siting Commission.
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Daniel D. Wilt, Attorney Helen W. Evans, State of Ohio
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Docket No. 50-155
. Docket No. 50-255-i Consumers Power Company ATTN: Mr. R.'B. DeWitt
'Vice President
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Nuclear _ Operations
.212 West Michigan Avenue Jackson, MI 49201
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D. P. Hoffman, Nuclear I
Licensing Administrator l
C. J.'Hartman,. Plant i
Superintendent i
R. W. Montross, Manager Central-Files i
AD/ Licensing ~
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AEOD Resident. Inspectors, RIII PDR-
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Ronald Callcn, Michigan l
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Docket No. 50-329 Docket'No. 50-330 Consumers Power Company 4TTN: Mr. James W. Cook Vice President Midland Project a-1945 West Parnall Road Jackson, MI 49201 cc w/ encl:
Central Files
-AD/ Licensing AD/ Operating Reactors PDR Local PDR NSIC TIC-Ronald Callen, Michigan Public Service Commission Myron M. Cherry f
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Docket No. 50-409 i
Dairyland Power Cooperative l
ATTL Mr. F. W. Linder Ceneral Manager 2615 East Avenue - South La Crosse, WI 54601 cc w/ encl:
R. E. Shimshak, Plant Superintendent Central Files AD/ Licensing AD/Opet. ting Reactors AEOD l
Resident Inspectnr, RIII PDR Local PDR NSIC TIC John J. Duffy, Chief Boiler Inspector i
Stanley York, Chairman Public Service Consission t
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i Docket No. 50-341 The Detroit Edison Company ATTN: Mr. Donald A. Wells Manager, Quality Assurance 2000 Second Avenue Detroit, MI 48226-cc'w/ encl:
Central Files AD/ Licensing AD/ Operating Reactors AEOD Resident Inspector, RIII PDR Local PDR NSIC TIC Ronald Callen, Michigan Public Service Commission Eugene B. Thomas, Jr., Attorney
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Docket No. 50-461 Docket No. 50-462 Illinois Power Company 4TTN:
Mr. W.1C. Gerstner Executive Vice President 500 South 27th Street Decatur, IL 62525 cc w/ enc 1:
Central Files AD/ Licensing l
AD/ Operating Reactors PDR Local PDR s
NSIC TIC Mary Jo Murray, Office of Assistant Attorney General j
t Gary N. Wright, Deputy Director Randall L. Plant, Prairie Alliance t
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Docket No. 50-331 Iowa Electric Light and Power Company 4TTN:
Mr. Duane Arnold President IE Towers P. O. Box 351 Cedar Rapids, IA 52406 cc w/ encl:
D. Mineck, Chief Engineer Central Files AD/ Licensing AD/ Operating Reactors AEOD Resident Inspector, RIII PDR Local PDR NSIC TIC
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Docket No. 50-367 i
Northern Indiana Public Service Company ATTN:
Mr. Eugene M. Shorb Senior Vice President 5265 Hohman Avenue Hammond, IN 46325 cc w/enci Central Files AD/ Licensing AD/ Operating Reactors PDR Local PDR i
NSIC TIC Mary Jo Murray, Office of
-Assistant. Attorney General r
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' i Docket No. 50-263 Docket No. 50-282
. Docket No. 50-306 Northern States Power Company I
ATTN:
Mr. Dennis E. Gilberts Senior Vice President t
Power Supply 414 Nicollet Mall Minne.ipolis,-MN 55401 cc w/ encl:
W. A. Shamla, Plant Manager F. P. Tierney, Jr., Plant Manager Central Files AD/ Licensing 3
AD/ Operating Reactors AEOD Resident Inspectors, RIII PDR
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John W. Fernan, Ph.D.,
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Docket No.' 50-546 Docket No. 50-547 Public Service of Indiana ATTN:
Mr. S. W. Shields Senior Vice President Nuclear Division i
Post Office Box 190 New Washington, IN 47162 cc w/ encl:
Steve J. Brewer, Nuclear Safety and Licensing Supervisor Central Files AD/ Licensing
-AD/ Operating Reactors PDR Local PDR NSIC TIC LeBoeuf, Lamb, Leiby & MacRae Dave Martin, Office of the Attorney General
' John R. Galloway, Staff Director, Environment, Energy and Natural Resources Subecmmittee t
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. Docket No. 50-346 Toledo Edison Company
= ATTN: Mr. Richard P. Crouse Vice President Nuclear Edison. Plaza 300 Madison Avenue Toledo, OH 43652-cc w/ encl:
1 T. D. Murray, Station t
I Superintendent
. Central Files l
AD/ Licensing AD/ Operating Reactors i
AEOD Resident Inspector, RIII PDR i
Harold W. Kohn, Power l
Siting. Commission t
Helen W. Evans, State of Ohio I
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Docket No. 50-483 Docket No. 50-486 Union Electric Company 4TTF-Mr. John K. Bryan Vice President - Nuclear Post Office Box 149 St. Louis, M0 63166 cc w/ enc 1:
W. H. Weber, Manager Nuclear Construction Central Files AD/ Licensing AD/ Operating Reactors PDR Local 2DR NSIC TIC Regions I & IV K. Drey Ronald Fluegge, Utility Division, Missouri Public Service Commission
Docket No. 50-266 Docket No. 50-301 i
Wisconsin Electric Power Company 4TTN:
Mr. Sol Burstein Executive Vice President Power Plants 231 West Michigsn Milwaukee, WI 53201 cc w/ encl:
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G. A. Reed, Plant Manager Central Files AD/ Licensing i
AD/ Operating Reactors l
T. Colburn, ORB /NRR l
AEOD Resident Inspector, RIII
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PDR Local PDR NSIC TIC John J. Duffy, Chief Boiler l
Inspector i
Peter Anderson, Wisconsin's Environmental Decade Stanley York, Chairman
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Public Service Commission i
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Docket No. 50-305 L
Wisconsin Public Service i
Co rporation ATTN: Mr. E. R. Mathews Vice President Power Supply and f
Engineering Post Office Box 1200 Green Bay, WI 54305 i
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D. C. Hintz, Plant Superintendent W. Sayles, Chief Engineer Central Files AD/ Licensing AD/ Operating Reactors AE0D Resident Inspector, RIII PDR Loca1 PDR NSIC t
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John J. Duffy, Chief Boiler Inspector j
Stanley York, Chairman Public Service Commission f
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SSINS No:
6830 Accession No..
8011040282 IEC 81-05 UNITED STATES
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NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT 7
WASHINGTON, D.C.
20555 March 31, 1981 IE Circular No. 81-05:
SELF-ALIGNING ROD END BUSHINGS r0R PIPE SUPPORTS Backcround:
By letter dated July 24, 1980, Bechtel Power Corporation notified NRC of generic deficie..cies in pipe support sway struts furnished by Corner &
Lada, Inc., to the Callaway and Wolf Creek sites.
The specific deficiencies identified involved the clamp end of the sway strut becoming loost and possibly being disengaged from the bushing.
This could result in a large gap in the support system not accounted for in the original analysis.
This deficiency was reported to NRC pursuant to 10 CFR Part 21 on May 14, 1980.
In another letter dated October 8,1980, Bechtel Power Corporation notified NRC of generic deficiencies in pipe support end bushings at Midland Units 1 and 2 and at Palisades.
In this report, self-aligning rod end bushings on the ends of sway struts and snubbers furnished by ITT Grinnell, Pacific Scientific, NPSI, and Corner & Lada were found to be partially or totally disengaged from the structural component.
This report was identified as a 10 CFR Part 21 notification.
Discussion:
The problem of loose bushings in snubber and sway strut assemblies is potent-ially generic to all sizes of all manufacturers' assembles.
However, the potential for complete disengagement of the bushing from the assembly is limited to those cases in which the assembly is attached to a clamp where the gap is sufficiently large to permit the paddle to slide completely over the bushing.
l The consequences of complete disengagement of the bushing would be to in.o -
idate the original analytical assumptions used in the piping analysis, potent-fally creating an overstress condition in the piping or overloading the supports.
This would be more significant for the seismic event s%ce the gap would change the dynamic characteristics of the system and lead to impact loads that could damage the piping or supports.
The corrective actions taken by licensees have been to replace the defective struts or to " stake" the loose bushing in place.
However, some of the staked bushings subsequently became loose and had to be reworked.
Another potential corrective action would be to shim the clamps where the potential for complete disengagement of the assembly from the bushing is possible.
This method would prevent total disengagement even if the bushing became loose.
If shims are I
used, consideration should be given to preventing any interference with required rotation of the assembly.
IEC 81-05 March 31, 1981 Page 2 of 2-Recommended Actions for Holders of Operating Licenses or Construction Permits:
1.
Determine whether youi 'Ocility uses pipe strut or snubber assemblies using bushings that could potentially become loose.
2.
Identify from design drawings or field inspections those supports using the strut or snubber assemblies identified in item 1 above where suffi-cient gap exists in the clamp attachment for complete disengagement of the bushing and tne assembly.
3.
Inspect where practical the snubber or strut essemblies identified in item 2 above to determine if any bushings are loose or disengaged.
If a large number of supports are involved in this inspection, a statistical sampling may be appropriate to determine if your facility has a problem with loose et disengaged bushings.
4.
If loose or disergaged bushings are found at your facility, take appro-priate corrective actions to ensure that complete disergagement of the assembly from the bushing cannet occur.
No written response to this circular is required.
If you need additiunal inform 3 tion with regard to this ;ubject, please contact the Directe-of the appropriate NRC Regional Office.
Attachments:
1.
Sway Strut Assembly:
Figure 211 2.
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O IEC 81-05 March 31, 1981 RECENTLY ISSUED IE CIRCULARS
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Circular Date of No.
Subiert Issue Issued to 81-04 The Role of Shift Technical 4/1/81 All power reactor Advisors anc Importance of facilities with an Licensee Event Reports OL or near-term OL 81-03 Inoperable Seismic Monitoring 3/2/81 All power reactor Irstrumentation facilities with an OL or CP 81-02 Performance of NRC-Licensed 2/9/81 All power reector Individuals While on Duty facilities (research
& test) with an OL or CP 81-01 Design Problems Involving 1/23/81 All power reactor Indicating Pushbutton facilities with Switches Manufactured by an OL or CP Honeywell Incorporated 80-25 Case Histories of 12/5/80 All radiography Radicgraphy Events licensees 80-24 AECL Teletherapy Unit 12/2/80 All teletherapy Malfunction licensees 80-23 Potential Defects in Beloit 10/31/80 All power reactor Power Systems Emergency facilities with Generators OL or a CP 80-22 Confirmation of Employee 10/2/80 All holders of a Qualifications power reactor OL or CP architect-engineering companies and nuclear steam system suppliers 80-21 Regu1ation of Refueling 9/10/80 All holders of a Crews power reactor OL or CP 80-20 Chances in Safe-Slab Tank 8/21/80 All Part 50 and Part Dimensions 70 fuel facility licensees OL = Operating Licenses CP = Construction Permit