ML081500664
| ML081500664 | |
| Person / Time | |
|---|---|
| Site: | Indian Point  |
| Issue date: | 05/15/2008 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| References | |
| Download: ML081500664 (7) | |
Text
1 IPRenewal NPEmails From:
Kimberly Green Sent:
Thursday, May 15, 2008 11:24 AM To:
STROUD, MICHAEL D; Tyner, Donna
Subject:
Draft Telecon Summary of May 7, 2008--RV and Neutron Embrittlement Attachments:
Telecon Summary 05-07-08 RV and Neutron Embrittlement.doc Mike and Donna, Attached is the draft telecon summary from the call on May 7, 2008. Please review and let me know if any corrections are needed.
- Thanks, KimberlyGreen SafetyPM (301)4151627 kimberly.green@nrc.gov
Hearing Identifier:
IndianPointUnits2and3NonPublic_EX Email Number:
78 Mail Envelope Properties (Kimberly.Green@nrc.gov20080515112400)
Subject:
Draft Telecon Summary of May 7, 2008--RV and Neutron Embrittlement Sent Date:
5/15/2008 11:24:17 AM Received Date:
5/15/2008 11:24:00 AM From:
Kimberly Green Created By:
Kimberly.Green@nrc.gov Recipients:
"STROUD, MICHAEL D" <MSTROUD@entergy.com>
Tracking Status: None "Tyner, Donna" <dtyner@entergy.com>
Tracking Status: None Post Office:
Files Size Date & Time MESSAGE 296 5/15/2008 11:24:00 AM Telecon Summary 05-07-08 RV and Neutron Embrittlement.doc 77306 Options Priority:
Standard Return Notification:
No Reply Requested:
No Sensitivity:
Normal Expiration Date:
Recipients Received:
LICENSEE: Entergy Nuclear Operations, Inc.
FACILITY: Indian Point Nuclear Generating Unit Nos. 2 and 3
SUBJECT:
SUMMARY
OF TELEPHONE CONFERENCE CALL HELD ON MAY 7, 2008, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND ENTERGY NUCLEAR OPERATIONS, INC., RELATED TO THE INDIAN POINT NUCLEAR GENERATING UNIT NOS. 2 AND 3, LICENSE RENEWAL APPLICATION STATUS OF OPEN ITEMS The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Entergy Nuclear Operations Inc (Entergy) held a telephone conference call on May 7, 2008, to obtain the status on open items related to reactor vessel surveillance and neutron embrittlement. By letter dated October 29, 2007, the NRC issued a request for additional information (RAI) on Reactor Vessel Surveillance Program and the Reactor Neutron Embrittlement Time-Limited Aging Analyses. Entergy responded by letter dated November 28, 2007. Subsequently, on December 3, and 4, 2007, the staff held telephone conference calls with the applicant to obtain clarification on the responses to the RAI. At that time, Entergy committed to revise some of the responses.
By letter dated January 17, 2008, Entergy submitted additional information; however, the staff identified a few issues that remained open pending the receipt of information from Entergy. The May 7, 2008, telephone conference call was useful in obtaining the status and proposed resolution of the open items.
provides a listing of the participants and Enclosure 2 contains a listing of the open items discussed with the applicant, including a brief description on the status of the items.
The applicant had an opportunity to comment on this summary.
Kimberly Green, Safety Project Manager Projects Branch 2 Division of License Renewal Office of Nuclear Reactor Regulation Docket Nos. 50-247 and 50-286
Enclosures:
As stated cc w/encl: See next page
ML OFFICE LA:DLR PM:RPB2:DLR BC:RPB2:DLR NAME KGreen RFranovich DATE 05/ /08 05/ /08 05/ /08
ENCLOSURE 1 TELEPHONE CONFERENCE CALL INDIAN POINT NUCLEAR GENERATING UNIT NOS. 2 AND 3 LICENSE RENEWAL APPLICATION LIST OF PARTICIPANTS MAY 7, 2008 PARTICIPANTS AFFILIATIONS Kim Green U.S. Nuclear Regulatory Commission (NRC)
Barry Elliot NRC Mike Stroud Entergy Nuclear Operations, Inc. (Entergy)
Alan Cox Entergy Ted Ivy Entergy Don Fronabarger Entergy Ron Finnin AREVA
ENCLOSURE 2 INDIAN POINT NUCLEAR GENERATING UNIT NOS. 2 AND 3 LICENSE RENEWAL APPLICATION STATUS OF OPEN ITEMS May 7, 2008 The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Entergy Nuclear Operations, Inc. held a telephone conference call on May 7, 2008, to obtain the status and proposed resolution of the open items related to reactor vessel surveillance and neutron embrittlement concerning the Indian Point Nuclear Generating Unit Nos. 2 and 3 (IP2 and IP3) license renewal application (LRA).
Open Item 4.2.1-1 In its January 17, 2008, response to RAI 4.2.1-1, the applicant identified the neutron fluxes assumed for all future operating cycles; however, the methodology for determining the neutron fluxes for the reactor vessel (RV) in IP2 was not identified.
Discussion:
Entergy stated that the neutron fluence calculations are included in the stretch power uprate application (WCAP-16157) on page 5.1-3. The staff will review the information in the WCAP report.
Open Item 4.2.1.3 LRA Sections A.2.2.1 and A.3.2.1 need to be revised based on the applicants response to RAI 4.2.1-1.
Discussion:
Entergy stated that it will include the information in the LRA annual update.
Open Item 4.2.2.2a In response to RAI 4.2.2-2, the applicant provided information for IP2 regarding fracture mechanics analyses and margins of safety against fracture equivalent to those required by Appendix G of Section XI of the ASME Code for beltline materials having CVUSE values below the screening limit of 50 ft-lb in 10 CFR Part 50, Appendix G. A similar analysis must be provided for the IP3 RV Discussion:
Entergy stated that it will include the information in the LRA annual update.
Open Item 4.2.2.2b The applicant cites WCAP-13587, Rev. 1, as its equivalent margins analysis which was developed using draft Regulatory Guide DG-1023, which has been superseded by Regulatory Guide (RG) 1.161, Evaluation of Reactor Pressure Vessels with Charpy Upper-Shelf Energy
Less Than 50 ft-lb, and ASME Code Case N-512, which as since been incorporated into Section XI of the ASME Code through the 2003 Addenda. However, the applicant had not previously requested the use of the WCAP report. To demonstrate that the methodology and criteria in the equivalent margins analyses (WCAP -13587, Rev. 1) for the IP2 and IP3 RVs are equivalent to the methodology and criteria in RG 1.161 and Appendix K of Section XI of the ASME Code, the applicant must compare and contrast the methodology and criteria in WCAP-13587, Rev. 1, for the IP2 and IP3 RVs to the methodology and criteria in RG 1.161 and Appendix K of Section XI of the ASME Code.
Discussion:
The staff stated that if the use of the WCAP has not been formally requested, it is not part of the applicants current licensing basis (CLB). Therefore, the applicant will need to compare the analysis in the WCAP that it has cited in the LRA with the methodology currently endorsed by the NRC in RG 1.161 and Appendix K to ASME Section XI. In a follow up phone call with Entergy, it stated that it will perform the comparison as requested.
Open Item 4.2.2.3 LRA Sections A.2.2.1.3 and A.3.2.1.3 contain summary descriptions of the applicants actions to address CvUSE; however, LRA Section A.3.2.1.3 needs to be revised to reflect the applicants response in its January 17, 2008, letter.
Discussion:
Entergy stated that the information is on page 21 of the response letter. The staff will review the cited information.
Open Item 4.2.4.3 LRA Section A.2.2.1.2 and A.3.2.1.2 contain summary descriptions of the TLAA evaluation of LTOP PORV setpoints; however, LRA Sections A.2.2.1.2 and A.3.2.1.2 need to be revised to discuss LTOP PORV setpoints.
Discussion:
Entergy stated that it will include the information in the LRA annual update.
Open Item 4.2.5.2 Entergy has not identified the methodology used determining the impact of the different irradiation temperatures and different amounts of copper and nickel for the surveillance welds on the RTNDT and M values for the IP2 intermediate shell and lower axial shell welds.
Discussion:
Entergy stated that the information is contained in a WCAP report that will be submitted in the near future to support a license amendment. Entergy indicated that it will either submit WCAP in advance of the license amendment request minus the P-T curves, or possibly include the verbiage related to the method of determination in the LRA annual update.