05000271/LER-1981-007-03, /03L-0:on 810205,Torus-RB Vacuum Breaker Differential Pressure Indicating Switch 16-19-324,model 288, Actuated Above Tech Spec Limit.Caused by Setpoint Drift. Switch Exercised,Reset & Returned to Svc

/03L-0:on 810205,Torus-RB Vacuum Breaker Differential Pressure Indicating Switch 16-19-324,model 288, Actuated Above Tech Spec Limit.Caused by Setpoint Drift. Switch Exercised,Reset & Returned to Svc

ML20008E742
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	03/04/1981
From:	Murphy W VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20008E738	List: 05000271/LER-1981-007, Forwards LER 81-007/03L-0 05000271/LER-1981-007-03, /03L-0:on 810205,Torus-RB Vacuum Breaker Differential Pressure Indicating Switch 16-19-324,model 288, Actuated Above Tech Spec Limit.Caused by Setpoint Drift. Switch Exercised,Reset & Returned to Svc
References
LER-81-007-03L, LER-81-7-3L, NUDOCS 8103090553
Download: ML20008E742 (1)

LER-1981-007, /03L-0:on 810205,Torus-RB Vacuum Breaker Differential Pressure Indicating Switch 16-19-324,model 288, Actuated Above Tech Spec Limit.Caused by Setpoint Drift. Switch Exercised,Reset & Returned to Svc

Event date:
Report date:
2711981007R03 - NRC Website

text

F U. S. NUCLEAD RESULATCOY COMMISSION NRC FORM 364 G.77)

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e 60 61 QQCKET NUMSER 6d 69 EVENT DATE I4 75 REPORT DATE 80 EVENT DESCRIPTION ANO PROBA8LE CONSEQUENCES O'o Iol2l l During surveillance testing, Torus-RB Vacuum Breaker AP switch DPIS 16-19-32A act-l io,3, l uated at 0.504 psid and was above the T. S. 3.7. A.5.a limit of < 0.5 psid. The l

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