05000298/LER-1979-027-03, /03L-0:on 791001,during Routine Surveillance Procedure MS-DPIS-119B,switch Was Found W/Setpoints in Excess of Tech Specs.Caused by Setpoint Drift.Instrument Recalibr

/03L-0:on 791001,during Routine Surveillance Procedure MS-DPIS-119B,switch Was Found W/Setpoints in Excess of Tech Specs.Caused by Setpoint Drift.Instrument Recalibr

ML19210D656
Person / Time
Site:	Cooper
Issue date:	10/29/1979
From:	Phillips D NEBRASKA PUBLIC POWER DISTRICT
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19210D647	List: 05000298/LER-1979-027, Forwards LER 79-027/03L-0 05000298/LER-1979-027-03, /03L-0:on 791001,during Routine Surveillance Procedure MS-DPIS-119B,switch Was Found W/Setpoints in Excess of Tech Specs.Caused by Setpoint Drift.Instrument Recalibr
References
LER-79-027-03L, LER-79-27-3L, NUDOCS 7911270432
Download: ML19210D656 (1)

LER-1979-027, /03L-0:on 791001,during Routine Surveillance Procedure MS-DPIS-119B,switch Was Found W/Setpoints in Excess of Tech Specs.Caused by Setpoint Drift.Instrument Recalibr

Event date:
Report date:
2981979027R03 - NRC Website

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U. S. NUCLE AR REGULATORY COMMISSION NRC FORM 366 17.7 7 )

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60 61 DOCK ET NUVSER t.d 63 EVENT DATE 74 75 REPORT OATE fl0 EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES h While performing routine surveillance procedure 6.2.1.4.2, MS-DPIS-119B was found I o

2 o a Iwith a setpoint in excess of the allowed Technical Specifications Table 3.2.A. All 1 l redundant differential oressure switches were functionine proceriv and were within I o

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5 lsnecification. There were no sicmifienne occurrences ng n result of this s-vene nrui I lthere were no adverse affects to public health and safety. This event is repetitivel a

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