SBK-L-17051, 2 - Revision to Flow Accelerated Corrosion Program Operating Experience
| ML17089A270 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 03/29/2017 |
| From: | Mccartney E NextEra Energy Seabrook |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| SBK-L-17051 | |
| Download: ML17089A270 (4) | |
Text
U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 Seabrook Station NEXTera ENERGY.
SEABROOK March 29, 2017 10 CFR 54 SBK-L-17051 Docket No. 50-443 Supplement 52 - Revision to Flow Accelerated Corrosion Program Operating Experience
References:
- 1. NextEra Energy Seabrook LLC, letter SBK-L-10077, "Seabrook Station Application for Renewed Operating License," May 25, 2010 (Accession Number ML101590099).
In Reference 1, NextEra Energy Seabrook, LLC (NextEra Energy Seabrook) submitted an application for a renewed facility operating license for Seabrook Station Unit 1 in accordance with the Code of Federal Regulations, Title 10, Parts 50, 51, and 54.
The Enclosure provides changes to the License Renewal Application (LRA), Appendix B -
Aging Management Programs, B.2.1.8 Flow Accelerated Corrosion. To facilitate understanding, the changes are explained, and where appropriate, portions of the LRA are repeated with the change highlighted by strikethroughs for deleted text and balded italics for inserted text.
There are no new or revised regulatory commitments contained in this letter.
NextEra Energy Seabrook, LLC PO Box 300, Seabrook, NH 03874
U.S. Nuclear Regulatory Commission SBK-L-17051IPage 2 If there are any questions or additional information is needed, please contact Mr. Edward J.
Carley, Engineering Supervisor - License Renewal, at (603) 773-7957.
If you have any questions regarding this correspondence, please contact Mr. Kenneth Browne, Licensing Manager, at (603) 773-7932.
I declare under penalty of perjury that the foregoing is true and correct.
Executed on March l~, 2017.
Sincerely, NextEra Energy Seabrook, LLC Regional Vice President Enclosure :
Supplement 52 - Revision to Flow Accelerated Corrosion Program Operating Experience cc:
D. H. Dorman J.C. Poole P. C. Cataldo T. M. Tran
- L. M. James Mr. Perry Plummer NRC Region I Administrator NRC Project Manager NRC Senior Resident Inspector NRC Project Manager, License Renewal NRC Project Manager, License Renewal Director Homeland Security and Emergency Management New Hampshire Department of Safety Division of Homeland Security and Emergency Management Bureau of Emergency Management 33 Hazen Drive Concord, NH 03305 perry.plummer@dos.nh.gov Mr. John Giarrusso, Jr., Nuclear Preparedness Manager The Commonwealth of Massachusetts Emergency Management Agency 400 Worcester Road Framingham, MA 01702-5399 John.Giarrusso@massmail.state.ma.us
Enclosure to SBK-L-17051 Revision to Flow Accelerated Corrosion Program Operating Experience
U.S. Nuclear Regulatory Commission SBK-L-17051 I Enclosure I Page 2 The 2nd paragraph within the Operating Experience section of the LRA Appendix B - B.2.1.8 Flow Accelerated Corrosion, has been revised as shown below.
Seabrook Station has not experienced any failures of piping covered by the FAG program with the exception of a minor leak in a non safety related small bore socket '.\\'elded fitting not modeled in CHECVVORKS. Since 2005 Seabrook Station has experienced two leaks on small bore lines within systems covered by the FAC program. '.Nall loss by flow accelerated corrosion within a socket welded fitting cannot be found using ultrasonic inspection techniques. Seabrook Station has implemented a radiography inspection program to screen susceptible small-bore piping for potential FAC related degradation. This inspection is focused on areas where personnel hazards may be created in the event of a through wall leak.