ML20091L489

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Failure to Perform TS Surveillance Due to Unanticipated Interaction of Sys
ML20091L489
Person / Time
Site: Catawba 
Issue date: 08/25/1995
From: Mccollum W
DUKE POWER CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20091L495 List:
References
NUDOCS 9508290215
Download: ML20091L489 (2)


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DUKEPOWER r August 25,1995 '

Document Control Desk

. U. S. Nuclear Regulatory Commission ;

. Washington, D.C. 20555 -

Subject:

Catawba _ Nuclear Station Docket No. 50-413 -

LER 413/95-003 ~

cGentlemen:

. Attached is Licensee Event Report 413/95-003 concerning FAILURE TO PERFORM -

TECHNICAL SPECIFICATION SURVEILLANCES DUE TO UNANTICIPATED INTERACTION OF SYSTEMS.

On July 27,1995, a scenario was discovered that had not been considered when our containraent -

integrity boundaries were established. An initial review identified three valves on each unit that should have been considered part of the containment integrity boundary. During the development of this Licensee Event Repoit (LER), another possible scenario was identified. Additional time is needed to consider all credible scenarios related to this event so that a final Safety Analysis can be developed. The LER will be revised and submitted by September 8,1995.

Very truly yours,.

s W. R. McCollum

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^ Attachments cc:

. Mr. S. D. Ebneter Marsh & Mclennan Nuclear 1 Regional Administrator, Region II; 1166 Avenue of the Americas

..U. S. Nuclear Regulatory Commission ~

. New York, NY 10036-2774 1101 Marietta Street, NW, Suite 2900

-Atlanta, GA 30323

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Mr. R. E. Martin INPO Records Center

. U. S. Nuclear Regulatory Commission 700 Galleria Place Office of Nuclear Reactor Regulation Atlanta, GA 30339-5957 Washington, D.C. 20555 o

oMr. R. J. Fn:udenberger

. NRC Resident Inspector

' Catawba Nuclear Station bxc: ' M. S. Tuckman -

- EC07H

',B. L.- Walsh

- ECllC.

C. A. Paton

- PB02L A. V. Carr

- PB05E B. J. Horsley

- ECl2T T. E. Mooney -

- EC090 NSRB Staff

- EC05N NC MPA-1 NCEMC PMPA SREC

'J. W. Glenn (PIP File)

- CN05SR (with Enclosures)

K. E. Nicholson (Reg. Compl.)

- CN01RC (with Enclosures)

SRG Group File

- CN05SR (with Enclosures)

Electronic Library

- EC050 (with Enclosures)

Master File (815.04)

- CN02DC (with Enclosures) 4 v

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