ML12038A233

Email from S. Bahadur, NRR to S. Weerakkody, NRR Fw: North Anna - Two Fuel Issues

ML12038A233
Person / Time
Site:	North Anna
Issue date:	09/07/2011
From:	Bahadur S Office of Nuclear Reactor Regulation
To:	Michael Cheok, Sunil Weerakkody Office of Nuclear Reactor Regulation
References
FOIA/PA-2011-0357
Download: ML12038A233 (1)

Text

Cheok, Michael From: Bahadur, Sher I 6L Sent: Wednesday, September 07, 2011 11:01 AM To: Weerakkody, Sunil; Cheok, Michael

Subject:

Fw: North Anna - Two Fuel Issues Importance: High FYI Sher Bahadur Sent from a US NRC BlackBerry From: Mendiola, Anthony To: Wilson, George Cc: Clifford, Paul; Ulses, Anthony; Attard, Anthony; 'Tony Attard (HO Panicker, Mathew; Wu, Shih-Liang; Bahadur, Sher Sent: Wed Sep 07 10:54:11 2011

Subject:

North Anna - Two Fuel Issues George, Just to clarify, we have TWO issues regarding the fuel.

1 - Seismic (structural) performance - the fuel is analyzed to behave in a safe manner (structurally) in the event of a OBE/SSE. If OBE/SSE is exceeded, fuel vendor warranties and regulatory analysis judgments are considered void until proven otherwise.

2- Thermal Hydraulic performance - Possibility of mixing flow vane damage could challenge the thermal margin performance of the fuel as well as the accident analyses of the core.

Anthony Mendiola Chief, Nuclear Performance and Code Review Branch SNPB/DSS/NRR/NRC (301) 415-1054 information in this record was deleted in accordance witl the Freedom of Information Act, exemptions Y---

FOIA- Q, 2-- 7 1

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