ML20095A567

Special Rept:On 920306,Channel 7 of Vibration & Loose Parts Monitoring Sys Was Declared Inoperable.Caused by a 60 Hz Noise on Channel.Work Request Has Been Written to Repair Channel During Future Outage

ML20095A567
Person / Time
Site:	Catawba
Issue date:	04/08/1992
From:	Tuckman M DUKE POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9204170146
Download: ML20095A567 (2)

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Subject:

Catawba Nuclear Station, Unit 1 o Docket No. 50-413 Special Report Vibration and Loose Parts Monitoring System j Pursuant to Technical Specification 3.3.3.9, find attached a Special Repor'. concerning the inopecability of the Unit 1 Vibration and Loose Parts Monitoring System Channe! 7 (Steam .

Generator C).

Very truly yours,

\ kC \% ...x M. S. Tuckman CRUSR4892.SGC v

Attachment xc: S. D. Ebneter Regional Administrator, Region II R. E. Martin, ONRR W. T. Orders Senior A:3ident Inspector i

.> ,i u ll A) 9y 9204170146 920408 PDR ADOCK 05000413 j' d\\

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1 SPECIAL REPORT CATAWBA NUCLEAR STATION, UNIT 1 Vibration and Loose Parts Monitoring System Channel 7 On March 6,1 1992, Channel 7 (Steam Generator C) of the Vibration and loose Parts Monitoring System was declared inopeiable due to a 60 Hz ei se on the channel. A work request has been written to repair the channel during a future outage of sufficient length.

This is being scheduled for an outage because a containment entry is necessary to make the

pair. Channel 11, which is the other Steam Generator C channel, is functioning and provides coverage, Since the channel has been inoperable for more than 30 days, it is reportable to the NRC pursuant to Technical Specification 3.3.3.9.

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