05000334/LER-1979-025-03, /03L-0 on 790624:during Records Review,Biasing Circuit for Channel 2 Temp Change Signal Summator Produced Output Signal Setpoint Approx 25 Degrees Too Low. Caused by Failure of Instrument Loop Signal Summator

/03L-0 on 790624:during Records Review,Biasing Circuit for Channel 2 Temp Change Signal Summator Produced Output Signal Setpoint Approx 25 Degrees Too Low. Caused by Failure of Instrument Loop Signal Summator

ML19207B458
Person / Time
Site:	Beaver Valley
Issue date:	08/23/1979
From:	Werling J DUQUESNE LIGHT CO.
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19207B453	List: 05000334/LER-1979-025-03, /03L-0 on 790624:during Records Review,Biasing Circuit for Channel 2 Temp Change Signal Summator Produced Output Signal Setpoint Approx 25 Degrees Too Low. Caused by Failure of Instrument Loop Signal Summator
References
LER-79-025-03L, LER-79-25-3L, NUDOCS 7908290492
Download: ML19207B458 (1)

LER-1979-025, /03L-0 on 790624:during Records Review,Biasing Circuit for Channel 2 Temp Change Signal Summator Produced Output Signal Setpoint Approx 25 Degrees Too Low. Caused by Failure of Instrument Loop Signal Summator

Event date:
Report date:
3341979025R03 - NRC Website

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60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h o

2 l During a records review on 7/24/79, it was discovered that the results of a l

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ITTTl I the Channel 2 Delta T-Tavg signal summator was producing an output signal setpoint j

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