ML18139A040
| ML18139A040 | |
| Person / Time | |
|---|---|
| Site: | Surry, North Anna  |
| Issue date: | 01/31/1980 |
| From: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Proffitt W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| References | |
| NUDOCS 8003190143 | |
| Download: ML18139A040 (4) | |
Text
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e UNITED STATES NUCLEAR REGULATORY COMMISSION REGION II In Reply Refer To:
RII:JPO 50-338., 50-339 50-404, 50-405 C?:5:-28 0, 5 0-281.----=::,
101 MARIETTA ST., N.W., SUITE 3100 ATLANTA, GEORGIA 30303 JAN 3 1 1980 Virginia Electric and Power Company Attn:
W. L. Proffitt
- Senior Vice President, Power P. 0. Box 26666 Richmond, Virginia 23261 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.
Enclosures:
- 1.
IE Circular No. 79-25 Supplement A
- 2.
List of IE Circulars Recently Issued Sincerely,
~~
~James P. O'Reilly Director
,SOOS 190143
Virginia Electric and Power Company cc w/encl:
e W.R. Cartwright, Station Manager Post Office Box 402 Mineral, Virginia 23117 P. G. Perry Senior Resident Engineer Post Office Box 38 Mineral, Virginia 23117 W. L. Stewart, Manager Post Office Box 315 Surry, Virginia 23883
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e JAN 3 1 1980 e
UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.
20555 January 31, 1980 SSINS No. :
6830 Accession No.:
7912190658 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 problem with Bergen Paterson part 2540 Strut Assembly used in combination with Pacific Scientific Company mechanical shock arrestors sizes 15K, SOK 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 Ill Shearon Harris #1, 2, 3, & 4 Virgil C. Summer #1 Limmerick #1 & 2 Three Mile Island #2 Watts Bar Ill Waterford #3 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.
e IE Circular No. 79-25 Supplement A January 31, 1980 RECENTLY ISSUED IE CIRCULARS Circular No.
80-02 80-01 79-25 79-24 79-23 79-22 79-21.
79-20 79-19 79-18
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Subject Nuclear Power Plant Staff Work Hours Service Advice for GE Induction Disc Relays Shock Arrestor Strut Assembly Interference Proper Installation and Calibration of Core Spray Pipe Break Detection Equipment on BWRs.
Motor Starters and*
and Contactors Failed to Operate Stroke Times for Power Operated Relief Valves Prevention of Unplanned Releases of Radioactivity
. Failure of GTE Sylvania Relay, Type PM Bulletin 7305, Catalog SU12-ll-AC with a 12V AC Coil Loose Locking Devices on Ingersoll-Rand Pumps Proper Installation of Target Rock Safety-Relief Date of Issue 2/1/80 1/17/80 12/20/79 11/26/79 11/26/79 11/16/79 10/19/79 9/24/79 9/13/79 9/10/79 Enclosure Issued to All holders of Reactor OLs including research and test reactors, and CPs All licensees of nuclear power reactor operating facilities and holders of nuclear power reactor CPs All licensees and holders of power reactor CPs All Holders of a Power Power Reactor OL or CP All Power Reactor Operating Facilities and Holders of Reactor CPs All Power Reactor Operating Facilities and all Utilities having a CP All holders of Power Reactor OLs and.CPs All holders of Power Reactor OLs and CPs All Holders of Power Reactor OLs and CPs All Holders of Power Reactor OLs and CPs