ML19296C411
| ML19296C411 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 01/31/1980 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Davidson D CLEVELAND ELECTRIC ILLUMINATING CO. |
| References | |
| NUDOCS 8002260011 | |
| Download: ML19296C411 (1) | |
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UNITED STATES
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NUCLEAR REGULATORY COMMISSION 2
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%, *...<,o GLEN ELLYN. lLLINOIS 60137 IJAN 31 hzu Docket No. 50-440 Docket No. 50-441 The Cleveland Electric Illuminating Company ATTN:
Mr. Dalwyn R. Davidson Vice President System Engineering and Construction P. O. Box 5000 Cleveland, OH 44101 Gentlemen:
The enclosed lE Circular No. 79-25, Supplement A, is forwarded to you for inforr.ation.
No written response to this Circular is required.
If you have any questions related tn the subject, please contact this office.
Sincerely, Et Y
'~
James G. Kepp er Director
Enclosure:
IE Circular No. 79-25, Supplement A cc w/ encl:
Central Files Director, NRR/DPM Director, NRR/ DOR PDR Local PDR NSIC TIC Harold W. Kohn, Power Siting Commission Mr. Daniel D. Wilt, Attorney Helen W. Evans, State of Ohio
. 8902200 OlI
SSINS No.:
6830 Accession No.-
UNITED STMES 7912190658 NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.
20555 January 31, 1980 IE Circolar No. 79-25 Supplement A SHOCK ARRESTOR STRUT ASSEMBLY v4TERFERENCE On December 20, 1979 licensees and holders of construction permits for nuclear power reactors were advised by IE Circular No. 79-25 of a pctential problem with Bergen Paterson part 2540 Strut Assembly used in combination with Pacific Scientific Company mechanical shock arrestors sizes ISK, 50K and 120K.
Bergen Paterson has conducted a detailed review of their records and identified the following nuclear power plants as being affected by the above problem:
Shoreham #1 Three Mile Island #2 Shearon Harris #1, 2, 3, & 4 Watts Bar #1 Virgil C. Summer #1 Waterford #3 Limmerick #1 & 2 During the course of this investigation Bergen-Paterson identified an additional problem with the 2540-120 Shock Arrestor Strut Assembly.
The assembly may not be acceptable for applications up to the published load of 120,000 lbs.
Preliminary load testing has indicated that the maximum accept-able load may be only 112,000 lbs.
All Nuclear Power Reactor licensees and holders of construction permits are advised to review their systems for any Bergen Paterson part 2540-120 Shock Arrester Strut Assembly.
Application of these assemblies should be analysed, existing calculations reviewed, and if necessary, recalculated to determine whether loads exceed 112,000 lbs.
Strut Assemblies for applications in excess of 112,000 lbs should be replaced by larger units or other acceptable resolution should be made.
IE ( t:ular No. 79-25 Supplement A Enclosure 6
January 31, 1980 RECENTLY ISSUED IE CIRCULARS Circular Subject Date of Issued to No.
Issue 80-02 Nuclear Power Plant 2/1/80 All holders of Reactor Staff Work Hours OLs including research and test reactors, and cps 80-01 Service Advice for GE 2/17/80 All licensees of Induction Disc P.elays nuclear power reactor operating facilities and holders of nuclear power rcactor cps 79-25 Shcok Arrestor Strut 12/20/79 All licensees and Assembly Interference holders of power reactor cps 79-24 Proper Installation and 11/26/79 All Holders of a Calibration of Core Spray Power Reactor OL or Pipe Break Detection CP Equipment on BWRs.
79-23 Motor Starters and 11/26/79 All Power Reactor and Contactors Failed Operating Facilities to Operate and Holders of Reactor cps 79-22 Stroke Times for Power 11/16/79 All Power Reactor Operated Relief Valves Operating Facilities and all Utilities having a CP 79-21 Prevention of Unplanned 10/19/79 All holders of Power Releases of Radioactivity Reactor OLs and cps 79-20 Failure of GTE Sylvania 9/24/79 All holoers of Power Relay, Type PM Bulletin Reactor OLs and cps 7305, Catalog SU12-11-AC with a 12V AC Coil 79-19 Loose Locking Devices 9/13/79 All Holders of Power on Ingersoll-Rand Pumps Reactor OLs and cps 79-18 Proper Installation of 9/10/79 All Holders of Power Target Rock Safety-Relief Reactor OLs and cps