05000334/LER-1978-054-03, /03L-0 on 781005:During Surveillance Test on Containment High Pressure Bistable,The Setpoint Was 2.3 Lbs Instead of 2.0.Caused by Faulty Elco Connector on Loop Signal Comparator.Comparator Was Replaced

/03L-0 on 781005:During Surveillance Test on Containment High Pressure Bistable,The Setpoint Was 2.3 Lbs Instead of 2.0.Caused by Faulty Elco Connector on Loop Signal Comparator.Comparator Was Replaced

ML19294A445
Person / Time
Site:	Beaver Valley
Issue date:	11/04/1978
From:	Werling J DUQUESNE LIGHT CO.
To:
Shared Package
ML19294A444	List: 05000334/LER-1978-054, Forwards LER 78-054/03L-0 05000334/LER-1978-054-03, /03L-0 on 781005:During Surveillance Test on Containment High Pressure Bistable,The Setpoint Was 2.3 Lbs Instead of 2.0.Caused by Faulty Elco Connector on Loop Signal Comparator.Comparator Was Replaced
References
LER-78-054-03L, LER-78-54-3L, NUDOCS 7811130220
Download: ML19294A445 (1)

LER-1978-054, /03L-0 on 781005:During Surveillance Test on Containment High Pressure Bistable,The Setpoint Was 2.3 Lbs Instead of 2.0.Caused by Faulty Elco Connector on Loop Signal Comparator.Comparator Was Replaced

Event date:
Report date:
3341978054R03 - NRC Website

text

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U. S. NUCLEAR REGULATORY COMMISSION NRC (dfW 366 wm LICENSEE EVENT REPORT CONTROL 8 LOCK: l l

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8 60 61 DOCK ET NuveER 66 69 EVENT DATE 74 75 REPORT C ATE 80 EVENT DESCRIPTION ANO PROS ABLE CONSEQUENCES h lol21 During performance of a surveillance test on containment high pressure bistable, l

l the setpoint was determined to be 2.3 pounds rather than 2.0 pounds.

The o 3 l o l 4 l l containment was at atmospheric pressure when the test was performed.

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l o I s l 1 and safety of the public was not jeopardized since the remaining instrument loops l

I lo [s l were operable.

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33 34 35 36 31 40 41 42 4J 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h i o l The incident resulted from a faulty "ELC0" connector on the loop signal comparator. I I

lThe connector was replaced and the loop was successfully tested.

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NAME OF PREPARER