ML14125A007
| ML14125A007 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 04/30/2014 |
| From: | Farideh Saba Division of Operating Reactor Licensing |
| To: | Hess T Tennessee Valley Authority |
| References | |
| MF3340 | |
| Download: ML14125A007 (3) | |
Text
1 NRR-PMDAPEm Resource From:
Saba, Farideh Sent:
Wednesday, April 30, 2014 5:01 PM To:
Hess, Thomas A (tahess@tva.gov); Williams, Gordon Robert (grwilliams1@tva.gov)
Subject:
Browns Ferry, Unit 2, NRC Request for Additional Information (RAI) Regarding 10 CFR 50 Appendix H Status Update Attachments:
BFN-2 App. H Request Additional RAI.docx Importance:
High Tom/Gordon, The NRC staffs RAI Regarding 10 CFR 50 Appendix H Status Update is attached. As we agreed, please provide your response by May 30, 2014.
- Thanks, Farideh E. Saba, P.E.
Senior Project Manager NRC/ADRO/NRR/DORL 301-415-1447 Mail Stop O-8G9A Farideh.Saba@NRC.GOV
Hearing Identifier:
NRR_PMDA Email Number:
1264 Mail Envelope Properties (Farideh.Saba@nrc.gov20140430170100)
Subject:
Browns Ferry, Unit 2, NRC Request for Additional Information (RAI) Regarding 10 CFR 50 Appendix H Status Update Sent Date:
4/30/2014 5:01:01 PM Received Date:
4/30/2014 5:01:00 PM From:
Saba, Farideh Created By:
Farideh.Saba@nrc.gov Recipients:
"Hess, Thomas A (tahess@tva.gov)" <tahess@tva.gov>
Tracking Status: None "Williams, Gordon Robert (grwilliams1@tva.gov)" <grwilliams1@tva.gov>
Tracking Status: None Post Office:
Files Size Date & Time MESSAGE 357 4/30/2014 5:01:00 PM BFN-2 App. H Request Additional RAI.docx 29580 Options Priority:
High Return Notification:
No Reply Requested:
Yes Sensitivity:
Normal Expiration Date:
Recipients Received:
REQUEST FOR ADDITIONAL INFORMATION REGARDING TENNESSEE VALLEY AUTHORITYS 10 CFR 50 APPENDIX H STATUS UPDATE FOR BROWNS FERRY NUCLEAR PLANT, UNIT 2 DOCKET NO. 50-260 (TAC NO. MF3340)
The Nuclear Regulatory Commission (NRC) staff has reviewed the information provided by Tennessee Valley Authority (TVA, the licensee) for Browns Ferry Nuclear Plant, Unit 2 (BFN-2) in its letters dated December 27, 2013 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML14008A108) and April 16, 2014 (ML14108A328), and has determined that additional information is necessary to complete the review of TVAs Status Update for BFN-2 for Title 10 of the Code of Federal Regulations (10 CFR), Part 50, Domestic Licensing of Production and Utilization Facilities, Appendix H, Reactor Vessel Material Surveillance Program Requirements (10 CFR 50 App. H).
Based on the staffs review of TVAs letters, please provide a response to the following request for additional information (RAI):
RAI 3
In response to NRC RAI 1(b), TVAs April 16, 2014 letter states that the BFN Unit 2 pressure-temperature (P-T) curves are non-conservative since the limiting beltline material shifted by 35°F higher at 30 EFPY and 27°F higher at 26 EFPY. Describe the details of how the 35°F and 27°F shifts were calculated.