05000327/LER-1980-081-03, /03L-0:on 800527,during Timing of 1-FCV-72-20, Containment Sump to Train B of Containment Spray,For Surveillance Test 166.1,valve Would Not Open.Caused by Switch Controlling FCV-72-20 Being Out of Adjustment

/03L-0:on 800527,during Timing of 1-FCV-72-20, Containment Sump to Train B of Containment Spray,For Surveillance Test 166.1,valve Would Not Open.Caused by Switch Controlling FCV-72-20 Being Out of Adjustment

ML19318C506
Person / Time
Site:	Sequoyah
Issue date:	06/25/1980
From:	Romine D TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19318C498	List: 05000327/LER-1980-081, Forwards LER 80-081/03L-0 05000327/LER-1980-081-03, /03L-0:on 800527,during Timing of 1-FCV-72-20, Containment Sump to Train B of Containment Spray,For Surveillance Test 166.1,valve Would Not Open.Caused by Switch Controlling FCV-72-20 Being Out of Adjustment
References
LER-80-081-03L, LER-80-81-3L, NUDOCS 8007010541
Download: ML19318C506 (1)

LER-1980-081, /03L-0:on 800527,during Timing of 1-FCV-72-20, Containment Sump to Train B of Containment Spray,For Surveillance Test 166.1,valve Would Not Open.Caused by Switch Controlling FCV-72-20 Being Out of Adjustment

Event date:
Report date:
3271980081R03 - NRC Website

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[;3-j (containment spray, for surveillance test 166.1, it was discovered

[.q) [tpat,this. valve woula not open. This' rendered train B of the con-( E J!,ainment spray system inoperable thus resulting in entering the t

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[3.;! nvestigation revented that FCV-72-20 is Interlocke d with FCV-74-21 I

[. {rj :Further investigition revealed that FCV-74-21 close interlock limit _.

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switch controlling FCV-72-20 was not closrd due to the limits being

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lLThe interlock limits on FCV-74-21 were re-adjusted and the system declared

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