05000249/LER-1980-009, Forwards LER 80-009/03L-0

Forwards LER 80-009/03L-0

ML17174A490
Person / Time
Site:	Dresden
Issue date:	03/25/1980
From:	Stephenson B COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17174A491	List: 05000249/LER-1980-009, Forwards LER 80-009/03L-0 05000249/LER-1980-009-03, /03L-0:on 800306,during Refueling Outage,While Performing LPCI Logic Tests,Injection Valve Mo 3-1501-22A Failed to Open.Caused by Loose Wire on Terminal Block in MCC-38-7 Due to Stripped Brass Screw
References
80-241, NUDOCS 8004020309
Download: ML17174A490 (2)

LER-1980-009, Forwards LER 80-009/03L-0

Event date:
Report date:
2491980009R00 - NRC Website

text

Commonweal-dison Dresden Nuclear Power Station R.R. #1 Morris, Illinois 60450 Telephone 815/942-2920 March 25, 1980 BBS LTR /180-241 James G. Keppler, Regional Director Directorate of Regulatory Operations U. S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137

- Region III

/

I

/

Reportable Occurrence Report f/80-9/03L-0, Docket._ 11050-249, is being submitted to your office in accordance with Dresden Nuclear Power Station Technical Specification 6.6.B.2.(b), conditions leading to operation in a degraded mode permitted by a limiting condition for operation or.plant shutdown required by a limiting condition for operation.

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BBS:lcg Enclosure cc:

Director of Inspecti.ioir.

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Station Superintendent Dresden Nuclear Power Station Direc.tor of Management InfoEnation & Program Control File/NRC MAi~ 3 1 \\980

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Jo 121 TDuring-Unit 3 refueling outage, while performing LPCI logic tests, injection valve fo ! JI I MO 3-1501-22A failed to open.

Valve did open via remote. control switch.' This is the I 0 14 1*1 first occurrence of this type. *Safety significance ni+/-nimized since the other subsyst~ml I 0 Is I l~ou1d have functione*d as designed, and the valve was capable of b~ing opened from the I 0 ! s I I control room.

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Repface stripped brass screw with*proper type, a,nd replaced lugs on wires I

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I 1 f 3 r I Logic test reconducted and MO 3~1501-22A functioned as designed.

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