05000369/LER-1981-092-03, /03L-0:on 810530,auxiliary Feedwater Flow Rate Instrumentation Pegged High.Caused by Failed Transmitters. Transmitters Replaced & Calibr.Power Supply Removed & Will Be Replaced

/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: 05000369/LER-1981-092, Forwards LER 81-092/03L-0.Detailed Event Analysis Encl 05000369/LER-1981-092-03, /03L-0:on 810530,auxiliary Feedwater Flow Rate Instrumentation Pegged High.Caused by Failed Transmitters. Transmitters Replaced & Calibr.Power Supply Removed & Will Be Replaced
References
LER-81-092-03L, LER-81-92-3L, NUDOCS 8108030245
Download: ML20009G017 (1)

LER-1981-092, /03L-0:on 810530,auxiliary Feedwater Flow Rate Instrumentation Pegged High.Caused by Failed Transmitters. Transmitters Replaced & Calibr.Power Supply Removed & Will Be Replaced

Event date:
Report date:
3691981092R03 - NRC Website

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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 e.I 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 replaced.e 2

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NAME CF PREPARER Phillip B. Nardoci

,weur; (704) 373-7432 8108030245 810625 PDR ADOCK 05000369 S

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