05000336/LER-1980-010-03, /03L-0:on 800310,during Surveillance,Control Element Assembly Exhibited Erratic Position Indication & Was Declared Inoperable.Caused by Intermittent Open Conductor in Cable or Connector from Reed Switch

/03L-0:on 800310,during Surveillance,Control Element Assembly Exhibited Erratic Position Indication & Was Declared Inoperable.Caused by Intermittent Open Conductor in Cable or Connector from Reed Switch

ML19323A099
Person / Time
Site:	Millstone
Issue date:	04/09/1980
From:	NORTHEAST UTILITIES
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19323A098	List: 05000336/LER-1980-010, Forwards LER 80-010/03L-0 05000336/LER-1980-010-03, /03L-0:on 800310,during Surveillance,Control Element Assembly Exhibited Erratic Position Indication & Was Declared Inoperable.Caused by Intermittent Open Conductor in Cable or Connector from Reed Switch
References
LER-80-010-03L, LER-80-10-3L, NUDOCS 8004170226
Download: ML19323A099 (1)

LER-1980-010, /03L-0:on 800310,during Surveillance,Control Element Assembly Exhibited Erratic Position Indication & Was Declared Inoperable.Caused by Intermittent Open Conductor in Cable or Connector from Reed Switch

Event date:
Report date:
3361980010R03 - NRC Website

text

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80 EVENT DESCnlPTION AND Pno0ABLE CONsEQUEt,JCES h l While performing routine surveillance, CEA 29 exhibited erratic position indicatiion O 2 lO ;3 ; l and was declared inoperable.

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33 CAUSE DESCnlPTION AND ConRECTIVE ACTIONS h li ] O l lThe cause of the erratic Reed Switch Position Indication was an intermittant open I-li li l iconductor in the cable or connector from the reed switch for CEA 29.

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. !i l 21 l reactor shutdown (unrelated) at a later date, the cable / connector assembly was reolacedl Ii ia i l and the positior$ indication system for CEA 29 was restored to operable status.

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