ML12089A027
| ML12089A027 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 03/27/2012 |
| From: | Mogren T Constellation Energy Nuclear Group, EDF Development, Ginna |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| Download: ML12089A027 (2) | |
Text
Thomas G. Mogren Manager - Engineering Services CENG a joint venture of constenlation (e
Energy 0 %)
R.E. Ginna Nuclear Power Plant, LLC 1503 Lake Road Ontario, New York 14519-9364 585.771.5208 585.771.3392 Fax Thomas.MoqrenLcenqllc.com March 27, 2012 U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 ATTENTION:
SUBJECT:
Document Control Desk R.E. Ginna Nuclear Power Plant Docket No. 50-244 10 CFR 50.46 Annual ECCS Report
References:
(a) Westinghouse Letter LTR-LIS-12-106,
Subject:
10 CFR 50.46 Annual Notification and Reporting for 2011, dated February 28, 2012 In accordance with the requirements in 10 CFR 50.46 paragraph (a)(3)(ii), this annual Emergency Core Cooling System (ECCS) report is hereby submitted by R.E. Ginna Nuclear Power Plant, LLC (Ginna LLC). Westinghouse, the provider of Loss of Coolant Accident (LOCA) analysis services for Ginna LLC, has provided an update to peak cladding temperature (PCT) margin in Reference (a).
Enclosed please find Attachment (1), "Westinghouse LOCA Evaluation Model Changes,"
which is the 2011 annual report of corrections to the Ginna LLC ECCS Evaluation Models.
This report summarizes changes made to both the large-break LOCA (LBLOCA) and small-break LOCA (SBLOCA) analyses. The "LBLOCA and SBLOCA Peak Clad Temperature Assessment Sheets" are enclosed as Attachment (2).
Should you have any questions regarding the information in this letter, please contact Mr.
Thomas Harding at (585) 771-5219, or at Thomas.HardingJr@cengllc.com.
Very truly yours, Thomas G. Mogren
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Document Control Desk March 27, 2012 Page 2 Attachments: (1) Westinghouse LOCA Evaluation Model Changes (2) LBLOCA and SBLOCA Peak Clad Temperature Assessment Sheets cc:
W. M. Dean, NRC D. V. Pickett, NRC Resident Inspector, NRC (Ginna LLC)