ML20009G017

LER 81-092/03L-0:on 810530,auxiliary Feedwater Flow Rate Instrumentation Pegged High.Caused by Failed Transmitters. Transmitters Replaced & Calibr.Power Supply Removed & Will Be Replaced

ML20009G017
Person / Time
Site:	McGuire
Issue date:	06/25/1981
From:	Nardoci P DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20009G016	List: ML20009G015 ML20009G017
References
LER-81-092-03L, LER-81-92-3L, NUDOCS 8108030245
Download: ML20009G017 (1)

Text

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I o 12 I I On May 30, 1981 at 2000 hours0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br />, Unit I was entering Mode 3 from Mode 4.' The ,

AI S/G "D" Auxiliary Feedwater. Flow Rate Instrumentation was pegged-high, hence,,

AI the instrument was declared inoperable.per Technical Specification.3.3.3.6 I ITTTl I which is reportable per Technical Specification 6.9.1.13(b). The inoper-  ;

lo is t I ability of these instruments would not affect the auxiliary feedwater sys ,

L a_j r j l tem in providing and maintin.ng its.necessary functions. Therefore, the  ;

health and safety of .the public were not affected by. this . incident.  ;

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LL.L_J l The S/G "D" Auxiliary Feedwater Flow Monitoring Instrumentation.became in- ,

EI coerable due to failed transmitters. One transmitter (Rosemount, Model ,

LL.Lij l 1151) was sending a faulty 74 milliamp signal; and another transmitter ,

Ii12i I (Barton 386A) had burned resistors due to its power supply. Both transmitter;s mI were replaced and calibrated, and the power. supply was removed.and will be ,

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l s ciurv as ugywoo e, FAM  % DER orMER STATUS. Osscov tRv DiscovtRY QEscn PTioM L'J.1J (_X.j@ l 0 l 01 Ol@l Mode 3 [~ l._d@l Personnel Observation l

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NAME CF PREPARER Phillip B. Nardoci ,weur; (704) 373-7432 8108030245 810625 PDR ADOCK 05000369 S PDR

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