05000298/LER-1979-023-03, /03L-0:on 790809,Barton Model 288 Differential Pressure Indicating Switch MS-DPIS-119B Was Found in Excess of Tech Specs Table 3.2.A.Caused by Faulty Switch. Microswitch Assembly Was Replaced

/03L-0:on 790809,Barton Model 288 Differential Pressure Indicating Switch MS-DPIS-119B Was Found in Excess of Tech Specs Table 3.2.A.Caused by Faulty Switch. Microswitch Assembly Was Replaced

ML19208D488
Person / Time
Site:	Cooper
Issue date:	09/07/1979
From:	Phillips D NEBRASKA PUBLIC POWER DISTRICT
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19208D477	List: 05000298/LER-1979-023, Forwards LER 79-023/03L-0 05000298/LER-1979-023-03, /03L-0:on 790809,Barton Model 288 Differential Pressure Indicating Switch MS-DPIS-119B Was Found in Excess of Tech Specs Table 3.2.A.Caused by Faulty Switch. Microswitch Assembly Was Replaced
References
LER-79-023-03L, LER-79-23-3L, NUDOCS 7909280479
Download: ML19208D488 (1)

LER-1979-023, /03L-0:on 790809,Barton Model 288 Differential Pressure Indicating Switch MS-DPIS-119B Was Found in Excess of Tech Specs Table 3.2.A.Caused by Faulty Switch. Microswitch Assembly Was Replaced

Event date:
Report date:
2981979023R03 - NRC Website

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N R'C F O R M'366 U. S. NUCLEAR REGULATORY COMMISSION

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8 60 61 DOCK ET NUMBER 68 69 EVENT DATE 74 7S REPORT D ATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h lWhile performing routine surveillance procedure 6.2.1.4.2, MS-DPIS-119B was found with I o

2 a setpoint in excess of that allowed in Technical Specificatione Table 3.2.A. All re-1 o

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ldundant differential pressure switches were functioning properly and were within s,nc-o ification. There were no significant occurrences as a result of this event and there I

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Iwere no adverse affects to public health and safety.

This event is not renetie4vn.

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l B IO 8 I Olh 33 34 35 36 31 40 di 42 4J 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS MS-DPIS-119B is a Barton Model 288 differential nressure iMicardne w4ech-Thn c,nen I

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g,,,, pf the setpoint drift is attributed to a faulty microswitch. The microswitch asso-b1-I yas replaced.

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1 3 10 68 63 80 3 David Phillips 402-825-3811 2,

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