ML20062D713

Special Rept:On 900930,Channel 3 of Loose Parts Monitor Sys Inoperable for More than 30 Days Due to Lack of Signal in Channel.Work Request Written to Repair Channel During Future Outage

ML20062D713
Person / Time
Site:	Catawba
Issue date:	11/09/1990
From:	Tuckman M DUKE POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9011150210
Download: ML20062D713 (2)

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. 's llake Ibner Company (70113 73 4 011 i

-* ' Nuclear Prodclion ikpartcnent

• PO liar 1007 ,

Charlotte, NC2hi&i i&??

DUKE POWER November 9, 1990 U. S. Nuclear Regulatory Commission ATTN --Document Control Desk Washington, D.C. 20555 Subjects- Catawba Nuclear Station, Unit 2 Docket No. 50-414 Special Report Pursuant to Technical Specification 3.3.3.9 please find attached a Special Report. This report concerns the inoperability of the Unit 2 Loose Parts Monitor Channel #3, Very truly_yours, k,. Q M. S. Tuckman Mlul/73/lcs

( cci Mr.:S. D. Ebneter

-Regional Administrator, RII

-U. S. Nuclear Regulatory Commist:loe

,101 Marietta St., NW., Suite 2900 Atlanta, Georgia 30323~

Mr.=R. E. Martin Office of Nuclear Regulatory Commission U. S. Nuclear Regulatory Commission One White Flint North, Hall Code 9H3' Washington, D.C.:-20555 Mr. W. T.-Orders NRC Resident Inspector Catawba Nuclear Station 1

9011150210 901109 i

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VIBRATION'AND LOOSE. PARTS MONITOR SYSTEM (EMD)

~INOPERABILITY OF CHANNEL #3, UPPER RX VESSEL' On September ~ 30, 1990, Channel #3 (Upper RX. Vessel) of the Unit 2 Loose. -

Parts Monitor was declared' INOPERABLE-due to no signal present on the channel. Work request #473780PS has been written to repair the channel 4 during a future outage (due to a' containment entry being required ~to repair the channel) that is of sufficient length. Channel #4 (which is  !

=the other channel on the Upper RX Vessel) is functioning and provides j coverage.

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Since the channel has been-INOPERABLE more than 30 days, it is reportable to the N2C pursuant to Tech Spec'3.3.3.9. If further ,

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information is required, contact Joel R. Fox at 831-3864.  !

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