ML20212P925
| ML20212P925 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 07/31/1986 |
| From: | Foster D GEORGIA POWER CO. |
| To: | Grace J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| REF-PT21-86-287-000 GN-1023, PT21-86-287-000, NUDOCS 8609030339 | |
| Download: ML20212P925 (1) | |
Text
Georg;a Power Company b k[>
Post Off>ce Box 282 Waynesboro, Georgia 30830 Telephone 404 554-%61. Ext 3360 404 724-8114, Ext. 3360 GeorgiaPower
- o. o.roote, NeYNec"t July 31", 1 United States Nuclear Regulatory Commission Region II File:
X7BG03-M120 Suite 2900 Log:
GN-1023 101 Marietta Street, Northwest Atlanta, Georgia 30323
Reference:
Vogtle Electric Generating Plant-Units 1 and 2; 50-424, 50-425; Valcor Solenoid Valves Attention:
Mr. J. Nelson Grace On July 2,1986, Mr. R. E. Folker, Vogtle Project Quality Assurance Engineer, informed Mr.
E.
F.
Christnot of the USNRC of a potentially reportable condition involving Valcor solenoid valves.
Valcor Engineering Corporation notified Georgia Power Company of three instances at other plants whereby valves using reactor chemistry water as their fluid at temperatures above 440*F experienced spring failures after one to two years service.
The spring material in each case was 17-7PH stainless steel and the cause of failure is suspected to be hydrogen embrittlement.
A preliminary review has identified six Valcor solenoid valves in each unit of the Vogtle Electric Generating Plant that will be subjected to reactor chemistry water at temperatures above 440 F.
An engineering evaluation to determine potential implications on plant safety is currently in progress.
Georgia Power Company expects to inform the USNRC of the results of this evaluation by September 20, 1986.
This response contains no proprietary information and may be placed in the NRC Public Document Room.
Your truly 8609030339 860731 DR ADOCK 05000424 g
PDR D. O. Fost r REF/00F/tdm xc:
U. S. Nuclear Regulatory Commission Document Control Desk Washington, D. C.
20555 J. H. Miller R. A. Thomas L. T. Gucwa J. P. O'Reilly D. R. Altman C. W. Hayes G. F. Head P. R. Bemis G. A. McCarley R. E. Conway J. A. Bailey D. S. Read J. T. Beckham
- 0. Batum Sr. Resident (NRC)
R. H. Pinson G. Bockhold C. S. McCall (OPC)
'[/f P. D. Rice C. E. Belflower J. E. Joiner (TSLA)
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B. M. Guthrie J. F. D'Amico D. C. Teper (GANE) m _. /1,1 D. E. Dutton E. D. Groover NORMS U.S. NRC REGION '
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