Letter Sequence Draft RAI |
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Initiation
- Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request
- Acceptance
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MONTHYEARML0727706052007-10-16016 October 2007 Summary of Telephone Conference Call Held Between the U.S. Nuclear Regulatory Commission and Entergy Nuclear Operations, Inc., Concerning Draft Requests for Additional Information Pertaining to Indian Point Generating Station Project stage: Draft RAI NL-08-021, License Renewal Application Amendment 22008-01-22022 January 2008 License Renewal Application Amendment 2 Project stage: Other ML0735305362008-02-15015 February 2008 IP 71003, Post-Approval Site Inspection for License Renewal Project stage: Other ML0806702862008-03-0404 March 2008 Letter from David E. Roth & Kimberly A. Sexton to Atomic Safety and Licensing Board Project stage: Request ML0806701252008-03-0606 March 2008 Supplement to NRC Staffs Answer to Entergys Motion to Strike the Reply of Westcan, Et Al. to the Responses Filed by Entergy and the NRC Staff Project stage: Request ML0810002692008-03-31031 March 2008 Answer of Entergy Nuclear Operations, Inc. to Riverkeepers Request for Admission of Amended Contention TC-1 (Concerning Environmentally Assisted Metal Fatigue) Project stage: Request ML0812603812008-05-0505 May 2008 Notice of Closed Meeting to Discuss the NRCs Assessment of Palisades Nuclear Plant Security Performance for the 2007 Calendar Year Project stage: Request ENOC-08-00028, J.A. FitzPatrick, Palisades, and Big Rock Point, Decommissioning Fund Status Report2008-05-0808 May 2008 J.A. FitzPatrick, Palisades, and Big Rock Point, Decommissioning Fund Status Report Project stage: Request NL-08-096, Request for Relief to Extend Inservice Inspection Interval for the Reactor Vessel Weld Examination and Request for License Amendment for Submittal of ISI Information and Analyses2008-07-0808 July 2008 Request for Relief to Extend Inservice Inspection Interval for the Reactor Vessel Weld Examination and Request for License Amendment for Submittal of ISI Information and Analyses Project stage: Request ML0820307962008-07-21021 July 2008 License Amendment Request for License Condition to Support Implementation of Extended In-Service Inspection Interval Project stage: Request ML0827603842008-10-0101 October 2008 Attachment 2, Marked Up Tech Spec Pages for License Amendment Request: Reporting of Reactor Vessel In-Service Inspection Information and Analyses in Support of Code Relief Request for Extension of Reactor Vessel Project stage: Request ML0827603832008-10-0101 October 2008 Attachment 1, Evaluation of the Proposed Change to License Amendment Request: Reporting of Reactor Vessel In-Service Inspection Information and Analyses in Support of Code Relief Request for Extension of Reactor Vessel Project stage: Request AEP-NRC-2008-41, Request for Relief to Extend the Inservice Inspection Interval for the Reactor Vessel Weld Examination and Request for License - Amendment for Submittal of ISI Information and Analyses2008-10-0909 October 2008 Request for Relief to Extend the Inservice Inspection Interval for the Reactor Vessel Weld Examination and Request for License - Amendment for Submittal of ISI Information and Analyses Project stage: Request ML0831505562008-11-14014 November 2008 Acceptance Review Letter Relief Request (ISIR-29) for Use of Risk-Informed Extension of the Reactor Pressure Vessel Inservice Inspection (ISI) Interval from 10 to 20 Years Project stage: Acceptance Review ML0833100062008-11-26026 November 2008 Draft RAIs Request for Relief to Extend the D.C. Cook Unit 2 Inservice Inspection Interval for the Reactor Vessel Weld Examination (ISIR-29) Project stage: Draft RAI ML0834300182008-12-10010 December 2008 Request for Additional Information Relief Request (ISIR-29) for Use of Risk-Informed Extension of the Inservice Inspection Interval for the Reactor Pressure Vessel Weld Examination Project stage: RAI ML0904304002009-01-14014 January 2009 Request to Extend Inservice Inspection Interval for the Reactor Vessel Weld Examination and Request for License Amendment for Submittal of ISI Information and Analyses - Response to Request for Additional Information Project stage: Response to RAI CP-200900009, Request for Relief to Extend the Unit 1 & 2 Inservice Inspection Interval for the Reactor Vessel Weld Examination and License Amendment Request 09-004 to Add License Condition for Submittal of ISI Information and Analyses2009-03-0404 March 2009 Request for Relief to Extend the Unit 1 & 2 Inservice Inspection Interval for the Reactor Vessel Weld Examination and License Amendment Request 09-004 to Add License Condition for Submittal of ISI Information and Analyses Project stage: Request ML0907207042009-03-13013 March 2009 E-mail Transmitting Verbal Authorization for Relief Requests ISIR-29 and ISIR-30 Project stage: Approval ML0912601632009-06-0808 June 2009 Evaluation of Relief Request (ISIR-29) to Extend the Third 10-Year Inservice Inspection Interval for Reactor Vessel Weld Examination Project stage: Approval ML0918907412009-07-0808 July 2009 Withdrawal of License Amendment Request: Reporting of Reactor Vessel Inservice Inspection Information and Analyses in Support of Code Relief Request for Extension of Reactor Vessel In-Service Inspection Interval Project stage: Withdrawal 2CAN100902, Request for Alternative ANO2-ISI-004 - Proposed Alternative to Extend the Third 10-Year Inservice Inspection Interval for Reactor Vessel Weld Examinations2009-10-29029 October 2009 Request for Alternative ANO2-ISI-004 - Proposed Alternative to Extend the Third 10-Year Inservice Inspection Interval for Reactor Vessel Weld Examinations Project stage: Request TMI-09-142, Request to Extend the Inservice Inspection Interval for Reactor Vessel Weld and Internal Examinations - Relief Requests RR-09-01 and RR-09-022009-10-29029 October 2009 Request to Extend the Inservice Inspection Interval for Reactor Vessel Weld and Internal Examinations - Relief Requests RR-09-01 and RR-09-02 Project stage: Request RC-11-0117, Request to Use Alternatives to ASME Code Requirements in VCSNS 3rd Ten Year Inservice Inspection Interval (RR-III-07) Risk-Informed Extension of Reactor Vessel In-Service Inspection Interval2011-08-16016 August 2011 Request to Use Alternatives to ASME Code Requirements in VCSNS 3rd Ten Year Inservice Inspection Interval (RR-III-07) Risk-Informed Extension of Reactor Vessel In-Service Inspection Interval Project stage: Other 2CAN041303, Additional Reactor Vessel Closure Head Weld Request for Alternative ANO2-ISI-004 Proposed Alternative to Extend the Third 10-Year Inservice Inspection Interval for Reactor Vessel Weld Examinations2013-04-24024 April 2013 Additional Reactor Vessel Closure Head Weld Request for Alternative ANO2-ISI-004 Proposed Alternative to Extend the Third 10-Year Inservice Inspection Interval for Reactor Vessel Weld Examinations Project stage: Request 2CAN111305, Unit 2, Response to Request for Additional Information Related to Relief Request ANO2-ISI-0042013-11-11011 November 2013 Unit 2, Response to Request for Additional Information Related to Relief Request ANO2-ISI-004 Project stage: Response to RAI AEP-NRC-2018-51, Request to Extend the Inservice Inspection Interval for Reactor Vessel Weld Examination - Relief Request ISIR-4-082018-08-0101 August 2018 Request to Extend the Inservice Inspection Interval for Reactor Vessel Weld Examination - Relief Request ISIR-4-08 Project stage: Request 2008-05-08
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Similar Documents at Cook |
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Text
From:
Terry Beltz Sent:
Wednesday, November 26, 2008 6:42 AM To:
'mkscarpello@aep.com'; 'jrwaters@aep.com' Cc:
Dan Widrevitz; Matthew Mitchell
Subject:
Draft RAI re: Request for Relief to Extend the D.C. Cook Unit 2 Inservice Inspection Interval for the Reactor Vessel Weld Examination (ISIR-29) (TAC No. 9943)
Michael and Joe By letter dated October 9, 2008 (ADAMS Accession No. ML082980354), Indian Michigan Power Company (I&M) submitted a relief request for the Donald C. Cook Nuclear Plant Unit 2 (CNP-2). The proposed relief request pertains to a new inservice inspection (ISI) schedule for the CNP-2 reactor vessel shell welds.
The U.S. Nuclear Regulatory Commission (NRC) staff in the Vessels and Internals Integrity Branch (CVIB) has completed its preliminary review of your submittal. The staff requires additional information to complete the review.
Our technical reviewer, Daniel Widrevitz, has developed the following questions which we would like to discuss with you in a conference call:
RAI 1
In Section 3.4 of the Final Safety Evaluation Report issued 05/09/2008 (ADAMS Accession No. ML081060045), the NRC staff notes that licensees submitting a request for an alternative based on Topical Report (TR) WCAP-16168,Risk-Informed Extension of the Reactor Vessel In-Service Inspection Interval, must submit the following plant-specific information:
- 1. Licensees must demonstrate that the RTmax-x and the shift in the Charpy transition temperature produced by irradiation defined at the 30 ft-lb energy level, T30 must be calculated using the latest approved methodology documented in Regulatory Guide 1.99, Radiation Embrittlement of Reactor Vessel Materials, or other NRC-approved methodology.
Other NRC-approved methodology includes equations 5, 6, and 7 as described in paragraph (g) of the proposed Title 10 of the Code of Federal Regulations (CFR) 50.61a rule as published in the Federal Register, Vol. 72, No. 191, dated October 3, 2007. However, paragraph (f)(6) of the proposed rule contains a prescriptive approach to determining the validity of implementing equations 5 through 7 of paragraph (g) for the calculation of T30 values. Data from a plant-specific or integrated surveillance program shall be evaluated in accordance with 10 CFR 50.61a(f)(6) to validate use of the associated embrittlement model.
The licensee has implemented the use of equations prescribed in proposed 10 CFR 50.61a(g),
NUREG-1874, and WCAP-16168 to determine T30 values for the beltline materials.
The NRC staff requests information consistent with the requirements of proposed rule 10 CFR 50.61a(f)(6) that establishes the applicability of equations 5 through 7 as given in 10 CFR 50.61a(g) for calculating T30 values for their plants beltline materials.
RAI 2
The licensee states that they are bounded by 7 heatup/cooldowns per year in Table 1 of the submittal.
Please cite the plant design basis for heatup/cooldowns per year.
RAI 3
The submittal the licensee cites compositions in terms of Cu, Ni, P, and Mn for Items 1-9 in Table 3 of the submittal. These compositions are not consistent with NRC records in Reactor Vessel Integrity Database (RVID).
Please explain where the Cu, Ni, and P compositions were accepted by the NRC or provide new data. Also, please explain on what basis the reported Mn compositions were determined.
This e-mail aims solely to prepare you and others for the proposed conference call. We can discuss the draft questions and how to disposition them during any subsequent conference call.
This e-mail does not formally convey an NRC staff position, nor does it formally request additional information. With or without the conference call, we plan to issue the formal RAIs to you in the near future and no later than December 12, 2008.
Sincerely, Terry A. Beltz, Senior Project Manager Plant Licensing Branch III-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation (301) 415-3049 Terry.Beltz@nrc.gov cc: Daniel Widrevitz Matthew Mitchell E-mail Properties Mail Envelope Properties ()
Subject:
Draft RAI re: Request for Relief to Extend the D.C. Cook Unit 2 Inservice Inspection Interval for the Reactor Vessel Weld Examination (ISIR-29) (TAC No. 9943)
Sent Date: 11/25/2008 3:11:22 PM Received Date: 11/26/2008 6:42:00 AM From: Terry Beltz
Created By: Terry.Beltz@nrc.gov Recipients:
mkscarpello@aep.com ('mkscarpello@aep.com')
Tracking Status: None jrwaters@aep.com ('jrwaters@aep.com')
Tracking Status: None Dan.Widrevitz@nrc.gov (Dan Widrevitz)
Tracking Status: None Matthew.Mitchell@nrc.gov (Matthew Mitchell)
Tracking Status: None Post Office:
Files Size Date & Time MESSAGE 14612 11/25/2008 Options Expiration Date:
Priority: olImportanceNormal ReplyRequested: False Return Notification: False Sensitivity: olNormal Recipients received: