ML17252A236
| ML17252A236 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 07/01/1976 |
| From: | Stephenson B Commonwealth Edison Co |
| To: | James Keppler NRC/RGN-III |
| References | |
| 50-249/1976-1 | |
| Download: ML17252A236 (3) | |
Text
Commonweal.dison Dresden Nuclear Po r Station R.R. #1
.* Morris, Illinois 60450 Telephone 815/942-2920 BBS Ltr. f/76-499 July 1, 1976 Mr. James G. Keppler, Regional Director Directorate of Regulatory Operations - Region III U. S./Nuclear Regulatory Commission
. 799 Roosevelt Road Glen.Ellyn, Illinois 60137
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Enclosed please find an update report to Reportable Occurrence report number 50-249/1976-1.
This report is being submitted to your office in accordance with the Dresden Nuclear Power Station Technical Specifications, Section 6.6.B.
'BBS :jo Enclosure cc:
Director of Inspection & Enforcement
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Ste~henson Station Superintendent Dresden Nuclear Power Station Director of Management Information & Program Control File/NRC 6947*
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EVENT DESCRIPTION (Continued)
Control valves 1, 3, and 4 operated satisfactorily.
(50-249/1976-1)
CAUSE DESCRIPTION (Continued) and slightly rusted valve shaft were discovered which undoubtedly impaired the operation of the solenoid valve.
A new "fast-acting" solenoid valve was installed, and the control valve was returned to service.
The new solenoid has functioned satisfactorily in every subsequent turbine control valve surveillance test.
Valve data:
solenoid valve EPN #20-CV2C, manufactured by Vickers, Inc.