05000369/LER-1981-072-03, /03L-0:on 810427,RHR Sys Discovered Isolated from RCS During Mod of Train a Solid State Protection Sys to Include Reactor on Turbine Trip.Caused by de-energized Relay in Logic,Closing Isolation Valve

/03L-0:on 810427,RHR Sys Discovered Isolated from RCS During Mod of Train a Solid State Protection Sys to Include Reactor on Turbine Trip.Caused by de-energized Relay in Logic,Closing Isolation Valve

ML20009F689
Person / Time
Site:	McGuire
Issue date:	05/27/1981
From:	Ouellette R DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20009F683	List: 05000369/LER-1981-072, Forwards LER 81-072/03L-0.Detailed Event Analysis Encl 05000369/LER-1981-072-03, /03L-0:on 810427,RHR Sys Discovered Isolated from RCS During Mod of Train a Solid State Protection Sys to Include Reactor on Turbine Trip.Caused by de-energized Relay in Logic,Closing Isolation Valve
References
LER-81-072-03L, LER-81-72-3L, NUDOCS 8107310410
Download: ML20009F689 (1)

LER-1981-072, /03L-0:on 810427,RHR Sys Discovered Isolated from RCS During Mod of Train a Solid State Protection Sys to Include Reactor on Turbine Trip.Caused by de-energized Relay in Logic,Closing Isolation Valve

Event date:
Report date:
3691981072R03 - NRC Website

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.2 EVENT CfsCairTICN ANQ PRc8 ASLI CONSEct ENCES O'c io12 IWhile in Mode 5, initial 'uel loading, the RHR system was inadvertently A 1 holated frnt. the RCS.

While performine a modification, the fuses from the Io i.1 I solid state protection system output cabinet were removed and an isolation m

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(TITl I is reportable per Technical Soecification 6.9.1.13(b).

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