ML20029A330
| ML20029A330 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 02/12/1991 |
| From: | Tuckman M DUKE POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9102190119 | |
| Download: ML20029A330 (2) | |
Similar Documents at Catawba | |
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Category:REPORTABLE OCCURRENCE REPORT (SEE ALSO AO LER)
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ML20153B053
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( b r !. ; ?t. AC NelIni t ?"IUI] P Tl DUKEPOWER February 12, 1991 U. S. Nuclear Reguistory Commission ATTN:
Document Control Desk Washington, D. C.
20555
Subject:
Catawba Nuclear Station, Unit 1 Docket No, 50-413 Special Report Pursuant to Technical Specification 3.3.3.9 and 6.9.2, find attached a Special Report. This report concerns the inoperability of the Unit $
Loose Parts Monitor Channel #11.
Very truly yours, b
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CRL19 Attachment xc: Mr. S. D. Ebneter Regional Administrator, Region 11 U. S. Nuclear Regulatory Commission 101 Marietta St., NW, Suite 2900 Atlanta, Geargia 30323 Mr. R. E. Martin Office of Nuclear Reactor Regulations U. S. Nuclear Regulatory Commission One White Flint North, Mail Stop 9H3 Washington, D. C.
20555 Mr. W. T. Orders NRC Resident Inspector Catawba Nuclear Station
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Vibration and Loose Parts Monitoring System inoperability of Channel #11, Steam Generator C.
Special Repor';
On January 2, 1991 Channel #11, Steam Generator C, of the Unit 1 Loose Farts Monitor was declared INOPERABLE due to excessive noise on the channel which was causing false alarms. Work request #546850PS was written te repair the channel during a future outage (due to a containment entry being required to repair the channel) that is of sufficient length. The next Unit 1 outage is currently scheduled to begin on March 16, 1991. Channel #7 (which is the other Steam Generator C channel).is functioning and provides coverage.
Since the channel has been INOPERABLE more than 30 days, it is reportable to the NRC pursuant to Technical Specification 3.3.3.9.
..