ML19305B083
| ML19305B083 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 01/31/1980 |
| From: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Nichols T SOUTH CAROLINA ELECTRIC & GAS CO. |
| References | |
| NUDOCS 8003190119 | |
| Download: ML19305B083 (1) | |
Text
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'o, UNITED STATES 8
NUCLEAR REGULATORY COMMISSION 9
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101 MARIETTA ST., N.W., SUITE 3100 ATLANTA, GEORGIA 30303 JAN 311980 In Reply Refer To:
- 9 South Carolina Electric and Gas Company Attn:
T. C. Nichols, Jr., Vice President Power Production and System Operations Po9t Office Box 764 Columbia, South Carolina 29218 Gentlemen:
The enclosed IE Circular No. 79-25 Supplement A is forwarded to you for information. No written response to this Circular is required.
If you have any questions related to the subject, please contact this office.
Sincerely,
/
g/ James P. O eilly Director v.
Enclosures:
1.
IE Circular No. 79-25 Supplement A 2.
List of IE Circulars Recently Issued b
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6830 Accession No.:
UNITED STATES 7912190658 NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.
20555 January 31, 1980 IE Circular No. 79-25 Supplement A SHOCK ARRESTOR STRUT ASSEMBLY INTERFERENCE On December 20, 1979, licensees and holders of construction permits for nuclear power reactors were advised by IE Circular No. 79-25 of a potential proh' m with Bergen Paterson part 2540 Strut Assembly used in combination with -s1 fic Scientific Company mechanical shock arrestors sizes 15K, 50K and 120K.
Bergen Paterson has conducted a detailed review of their records and identified the following nuclear power plants as being afiected 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 analyzed, 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, b N\\
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IE Circular No. 79-25 Supplement A Enclosure January 31, 1980 RECENTLY ISSUED IE CIRCULARS Circular Subj ect 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 Servie e Advice for GE 1/17/80 All licensees of Induction Disc Relays nuclear power reactor operating facilities and holders of nuclear power reactor cps 79-25 Shock Arrestor Scrut 12/20/79 All licensees and holders Assembly Interference of power reactor cps a
79-24 Proper Installation and 11/26/79 All Holders of a Power Calibration of Core Spray Power Reactor OL or CP Pipe Break Detection 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 holders of Power Relay, Type PM Bulletin Reactor OLs and cps 7305,-Catalog SU12-11-Ad L
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 AllHoldersofPower Target Rock Safety-Relief Reactor OLs and cps