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

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/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
ML19322E806
Person / Time
Site: Dresden 
Issue date: 03/25/1980
From: Zirwas K
COMMONWEALTH EDISON CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17174A491 List:
References
LER-80-009-03L-02, LER-80-9-3L-2, NUDOCS 8004020310
Download: ML19322E806 (1)


LER-1980-009, /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
Event date:
Report date:
2491980009R03 - NRC Website

text


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y l Mo 3-1501-22A faij ! to open.

Valve did open via remote control switch.

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g lfirst occurrence of this type.

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el 42 43 44 47 CAUSE OESCRIPTION AND COHHECTIVE ACTIONS h l i l o l l Investigation revealed a loose wire on terminal block in MCC-38-7 due to a stripped l

y l brass screw.

Replace stripped brass screw with proper type, and replaced lugs on wires!

l terminating on block.

This was t be only brass screw found out of 57 MCC's checked.

j l Logic test reconducted and Mo 3-1501-22A functioned as designed.

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