PLA-6729, 10 CFR 50.46 - Annual Report

10 CFR 50.46 - Annual Report

ML111740334
Person / Time
Site:	Susquehanna
Issue date:	06/22/2011
From:	Rausch T Susquehanna
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
PLA-6729
Download: ML111740334 (2)

Text

Timothy S. Rausch PPL Susquehanna, LLC Sr. Vice President & Chief Nuclear Officer 769 Salem Boulevard Berwick, PA 18603 Tel. 570.542.3445 Fax 570.542.1504 tsrausch@pplweb.com JUN 2 2 2011 U. S. Nuclear Regulatory Commission Document Control Desk Mail Stop OPl-17 Washington, DC 20555-000 1 SUSQUEHANNA STEAM ELECTRIC STATION 10 CFR 50.46 - ANNUAL REPORT Docket Nos. 50-387 PLA-6729 and 50-388

Reference:

I) PLA-6622, T. S. Rausch (PPL) to Document Control Desk (USNRC),

"I 0 CFR 50.46 - Annual Report, " dated June 25, 201 0.

This report is being sent in accordance with 10 CFR 50.46(a)(3)(ii).

10 CFR 50.46(a)(3)(ii) requires (in part) annual reporting of changes to or errors in evaluation models used for calculating Emergency Core Cooling System (ECCS) performance, and an estimate of their effect on the limiting ECCS analysis.

Additionally, a proposed schedule is required for re-analysis or identification of other actions necessary to show compliance with 10 CFR 50.46 requirements.

The ECCS performance evaluation method applicable to both Susquehanna SES Unit 1 and Unit 2 is the AREVA EXEM BWR - 2000 LOCA Methodology.

Since the submittal of the last annual 10 CFR 50.46 report (Reference 1) until May 26, 20 11, there have been no non-zero PCT changes reported to PPL Susquehanna, LLC for Units 1 and 2. Thus, the current licensing basis PCT remains valid and no further actions are required. This letter meets the annual reporting requirements.

PPL Susquehanna, LLC will continue to track future changes to the evaluation models used in the applicable LOCA analysis methods to ensure that the PCT values remain below the 10 CFR 50.46 limit, and to ensure that the 10 CFR 50.46 reporting requirements are met.

Document Control Desk PLA-6729 If you have any questions, please contact Mr. John J. Petrilla, Acting Manager - Nuclear Regulatory Affairs at (570) 542-3796.

Sincerely,

&M T. S. Rausch Copy: NRC Region I Mr. P. W. Finney, NRC Sr. Resident Inspector Mr. B. K. Vaidya, NRC Project Manager Mr. R. R. Janati, DEPIBRP