ML082950665

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EN-08-063 - Duke Power Company, LLC, McGuire Nuclear Station, Units 1 & 2
ML082950665
Person / Time
Site: McGuire, Mcguire  Duke Energy icon.png
Issue date: 10/22/2008
From: Nick Hilton, Wray J
NRC/OE
To:
Duke Power Co
Wray J
References
EA-08-220, EN-08-063
Download: ML082950665 (2)


Text

PRELIMINARY INFORMATION - NOT FOR PUBLIC DISCLOSURE UNTIL VERIFICATION THAT LICENSEE HAS RECEIVED ACTION October 22, 2008 EN 08-063 OFFICE OF ENFORCEMENT NOTIFICATION OF SIGNIFICANT ENFORCEMENT ACTION Licensee:

Duke Power Company, LLC EA-08-220 McGuire Nuclear Station, Units 1 & 2 Docket Nos. 05000369/05000370

Subject:

ISSUANCE OF FINAL SIGNIFICANCE DETERMINATION AND NOTICE OF VIOLATION This is to inform the Commission that a Notice of Violation associated with a White Significance Determination Process (SDP) finding will be issued on or about October 27, 2008, to Duke Power Company, LLC as a result of inspections at the McGuire Nuclear Station. This White finding, an issue with low to moderate importance to safety, which may require additional NRC inspections, involved the failure to take adequate corrective action related to the service water strainer backwash system.

Specifically, a plant modification implemented to address a macro-fouling concern associated with the service water strainers (1) utilized non-safety-related instrument air to support backwash operations, and (2) did not account for the impact on timely operator response following a safety injection signal or loss of instrument air. As a result, there was a lack of reasonable assurance that the service water system would have been capable of performing its safety-related function during a time of high fouling potential. The finding does not represent a current safety concern because temporary modifications and appropriate procedural changes have been made to address periods of potential macro-fouling.

A Notice of Violation is included based on a violation of 10 CFR Part 50, Appendix B, Criterion XVI, Corrective Actions due to the licensees failure to correct a significant condition adverse to quality identified in 2003 related to macro-fouling of the plants service water strainers..

It should be noted that the licensee has not been specifically informed of the enforcement action. The schedule of issuance and notification is:

Mailing of Final Significance Determination October 27, 2008 Telephone Notification of Licensee October 27, 2008 The State of North Carolina will be notified.

Contacts: John Wray, OE, 301-415-1288; Nick Hilton, OE, 301-415-3055

PRELIMINARY INFORMATION - NOT FOR PUBLIC DISCLOSURE UNTIL VERIFICATION THAT LICENSEE HAS RECEIVED ACTION PRELIMINARY INFORMATION - NOT FOR PUBLIC DISCLOSURE UNTIL VERIFICATION THAT LICENSEE HAS RECEIVED ACTION Distribution: EN-08-063, October 22, 2008 OWFN Chairman Klein Comm. Jaczko Comm. Lyons Comm. Svinicki SECY OCA OPA OIP OWFN DO DEDR DEDMRS OE OGC NRR NSIR OI STP TWFN OCFO OP CENTER NMSS OIG OIS RES ACRS FSME Regional Offices RI RII RIII RIV MAIL PUBLIC OE staff DISTRIBUTION: (Hard copy)

C. Carpenter, OE S. Magruder, OE J. Wray, OE N. Hilton, OE OE r/f EA-08-220 File EN binder ADAMS ML082950665 Publicly Available X Non-Sensitive X OFFICE OE OE NAME J. Wray N. Hilton DATE 10/21/08 10/22/08 OFFICIAL RECORD COPY