05000298/LER-1981-012-03, /03L-0:on 810519,during Testing HPCI-PS-68D Tripped at 89 Psig Instead of 100 Psig Tech Spec Limit. Caused by Random Instrument Drift.Instrument Immediately Recalibr & Returned to Svc

/03L-0:on 810519,during Testing HPCI-PS-68D Tripped at 89 Psig Instead of 100 Psig Tech Spec Limit. Caused by Random Instrument Drift.Instrument Immediately Recalibr & Returned to Svc

ML20009F001
Person / Time
Site:	Cooper
Issue date:	06/18/1981
From:	Flannigan R NEBRASKA PUBLIC POWER DISTRICT
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML20009E995	List: 05000298/LER-1981-012, Forwards LER 81-012/03L-0.Detailed Event Analysis Encl 05000298/LER-1981-012-03, /03L-0:on 810519,during Testing HPCI-PS-68D Tripped at 89 Psig Instead of 100 Psig Tech Spec Limit. Caused by Random Instrument Drift.Instrument Immediately Recalibr & Returned to Svc
References
LER-81-012-03L, LER-81-12-3L, NUDOCS 8107280598
Download: ML20009F001 (1)

LER-1981-012, /03L-0:on 810519,during Testing HPCI-PS-68D Tripped at 89 Psig Instead of 100 Psig Tech Spec Limit. Caused by Random Instrument Drift.Instrument Immediately Recalibr & Returned to Svc

Event date:
Report date:
2981981012R03 - NRC Website

text

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NSb F O,Rg 366 U. S. NUCLE AR REGULA'. 33Y COMMISSION 17 77J LICENSEE EVENT REPORT CONTHOL BLOCK. l l

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EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h o 2 During routine surveillance testing, it was discovered that HPCI-PS-68D tripped at i 90,3i i89 psig instead of the >100 psig Tech. Spec. limit. At the time of the occurrence, l lthe reactcr was in cold shutdown and HPC1 was not required to be operable. This l

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