ML19305B079
| ML19305B079 | |
| Person / Time | |
|---|---|
| Site: | Hatch, Vogtle  |
| Issue date: | 01/31/1980 |
| From: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | John Miller GEORGIA POWER CO. |
| References | |
| NUDOCS 8003190113 | |
| Download: ML19305B079 (1) | |
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UNITED STATES NUCLEAR REGULATORY COMMISSION 9', g:
REGION 11 5*w
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8 101 MARIETTA ST., N.W., SUITE 3100 0,,
O ATLANTA, GEORGIA 30303 e e s *,e In Reply Refer To:
JAN 3l' E O RII:JP0 50-32.1.J 0:366 d 24, 50-425 )
Georgia Power Company Attn:
J. H. Miller, Jr.
Executive Vice President 270 Peachtree Street, N.W.
Atlanta, Georgia 30303 Gentlemen:
The enclosed IE Circular No. 79-25 Supplement A is forwarded to you for
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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 Reilly Director i
Enclosures:
1.
IE Circular No. 79-25 Supplement A 2.
List of IE Circulars Recently Issued i
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JAN 311980 Georgia Power Company.
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M. Manry, Plant Manager Post Office Box 442 Baxley, Georgia-31513 C. E. Belflower Site QA Supervisor Post Office Box 442 Baxley, Georgia 31513 K. M. Gillespie Construction Project Manager Post Office Box 282 Waynesboro, Georgia 30830 E. D. Groover QA Site Supervisor Post Offi.ce Box 282 Waynesb ro, Georgia 30830 W. A. Widner, General Manager Nuclear Generation Georgia Power Company Post Office Box 4545 Atlanta, Georgia 30303 d
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SSINS No.:
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 problem with Bergen Paterson part 2540 Strut Assembly used in combination with Pacific 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 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 /l1 & 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 licensecs 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 lbe. Strui. Assemblies for applications in excess of 112,000 lbs should be replaced by larger units or other acceptable resolution should be made.
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d IE. Circular No. 79-25 Supplement A Enclosure
'Janua ry 31, 1980 RECENTLv ISSUED IE u.m._LLARS Circular Subject Date of Issued to No.
Issue 80-02 Nuclear Power Plant 2/1/80 All holders of Reactor Staff l'ork Hours OLs including research and test reactors, and cps 80-01 Service Advice for GE 1/17/50 All licensees of Induction Dise Relayt nuclear power reactor operating facilities and holders of nuclear power reactor cps 79-25 Shock Arrestor Strut 12/20/79 All licensees and holders Assembly Interference of power reactor cps e
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 10 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-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 i
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