Letter Sequence Draft RAI |
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MONTHYEARAEP-NRC-2009-18, License Amendment Request for Adoption TSTF-511, Revision 0, Eliminate Working Hour Restrictions from TS 5.2.2 to Support Compliance with 10 CFR Part 262009-03-19019 March 2009
License Amendment Request for Adoption TSTF-511, Revision 0, Eliminate Working Hour Restrictions from TS 5.2.2 to Support Compliance with 10 CFR Part 26
Project stage: Request
AEP-NRC-2009-25, Small Break Loss-of-Coolant Accident Evaluation Model Reanalysis2009-03-30030 March 2009
Small Break Loss-of-Coolant Accident Evaluation Model Reanalysis
Project stage: Request
ML0911700962009-04-27027 April 2009
E-mail Transmitting Acceptance Review of License Amendment Request Regarding Large Break Loss-of-Coolant Accident Analysis Methodology
Project stage: Acceptance Review
ML0919802662009-07-17017 July 2009
Draft RAIs for License Amendment Request Large Break Loss-of-Coolant Accident Methodology
Project stage: Draft RAI
ML0919802562009-07-17017 July 2009
E-mail Transmitting Draft Requests for Additional Information Large Break Loss-of-Coolant Accident License Amendment Request
Project stage: Draft RAI
ML0922400072009-08-11011 August 2009
E-mail Transmitting Revised Draft Requests for Additional Information Large Break LOCA License Amendment Request
Project stage: Draft RAI
ML0922400112009-08-11011 August 2009
Revised Draft Requests for Additional Information Associated with Large Break LOCA License Amendment Request
Project stage: Draft RAI
ML0926100292009-09-22022 September 2009
Request for Additional Information License Amendment Request Associated with Large Break LOCA Analysis Methodology
Project stage: RAI
AEP-NRC-2009-71, Response to Request for Additional Information Regarding a License Amendment Request Associated with the Large-Break Loss-of-Coolant Accident Analysis Methodology2009-11-20020 November 2009
Response to Request for Additional Information Regarding a License Amendment Request Associated with the Large-Break Loss-of-Coolant Accident Analysis Methodology
Project stage: Response to RAI
ML1000403272010-01-12012 January 2010
Request for Withholding Information from Public Disclosure
Project stage: Withholding Request Acceptance
ML1017302012010-06-21021 June 2010
Transmitting Draft RAI the Proposed Amendment Concerning Large-Break LOCA
Project stage: Draft RAI
ML1020305552010-07-22022 July 2010
Revised Draft RAI on Boron Precipitation Analysis for the Proposed Large-Break LOCA Amendment
Project stage: Draft RAI
ML1029400062010-10-20020 October 2010
Draft Questions Re Boric Acid Precipitation Analysis for the Proposed Large-Break LOCA Amendment
Project stage: Draft Approval
ML1030505662010-11-0101 November 2010
Draft Request for Additional Information Re. Downcomer Boiling for the Proposed LBLOCA Amendment
Project stage: Draft RAI
AEP-NRC-2011-15, Response to Second Request for Additional Information Regarding Amendment Request Associated with the Large-Break Loss-of-Coolant Accident Analysis Methodology2011-02-24024 February 2011
Response to Second Request for Additional Information Regarding Amendment Request Associated with the Large-Break Loss-of-Coolant Accident Analysis Methodology
Project stage: Request
ML1108101032011-03-11011 March 2011
Commitment to Perform Updated Boric Acid Precipitation Analysis for Recirculation Phase of a Postulated Large-Break Loss-Of-coolant Accident
Project stage: Other
AEP-NRC-2011-25, Change to Proposed Technical Specification Page Regarding Large-Break Loss-Of-Coolant Accident Analysis Approval2011-03-25025 March 2011
Change to Proposed Technical Specification Page Regarding Large-Break Loss-Of-Coolant Accident Analysis Approval
Project stage: Other
ML1107307832011-03-31031 March 2011
(CNP-2)-Issuance of Amendment No. 297 Re. Large-Break Loss-of-Coolant Accident Analysis
Project stage: Approval
ML11083A0332011-04-12012 April 2011
Withholding from Public Disclosure, Westinghouse Reports, D.C. Cook Unit 2 (AMP) Post-LOCA Responses to Request for Additional Information (Rai), & Supplemental Information to Support Informal NRC Audit of 12 .
Project stage: RAI
ML1114508892011-05-25025 May 2011
Changing a Schedule Conveyed by a Letter Dated 2/24/11 in Support of a Proposed Amendment Regarding the Large-break LOCA Analysis
Project stage: Approval
AEP-NRC-2011-41, Updated Boric Acid Precipitation Analysis for Recirculation Phase of a Postulated Large-Break Loss-of-Coolant Accident2011-06-30030 June 2011
Updated Boric Acid Precipitation Analysis for Recirculation Phase of a Postulated Large-Break Loss-of-Coolant Accident
Project stage: Other
ML11193A1462011-07-27027 July 2011
Determines That Submitted Information Dated 6/30/11 Is Proprietary and Is Withheld from Public Disclosure
Project stage: Other
ML1131202152011-11-0707 November 2011
Inform That TAC ME5865 Will Be Closed and the Issue of Lateral K Factor for LBLOCA Will No Longer Be Pursued Under D. C. Cook Unit 2 Docket
Project stage: Other
2010-06-21
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Similar Documents at Cook |
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Text
ADAMS Accession Nos.:
Package: ML91980265 E-Mail: ML091980256 Attachment (Draft RAIs): ML091980266 From:
Beltz, Terry Sent:
Friday, July 17, 2009 11:20 AM To:
'mkscarpello@aep.com' Cc:
'pgschoepf@aep.com'; 'jazwolinski@aep.com'; 'jmpetro@aep.com'; Huang, Tai
Subject:
Donald C. Cook Nuclear Plant, Unit 2 (CNP-2) - Draft RAIs re: LBLOCA Amendment Request (ME1017)
Attachments:
Donald C. Cook Nuclear Plant, Unit 2 - LBLOCA LAR - Draft RAIs.doc
Dear Mr. Scarpello:
This e-mail is in reference to Indian Michigan Power Company's (I&M, the licensee) license amendment request dated March 19, 2009 (Agencywide Documents and Access Management System (ADAMS) Accession No. ML090930453). The proposed amendment would adopt a new analysis of a large break loss-of-coolant accident (LBLOCA) for CNP-2. The new analysis is performed using the NRC-approved methodology set forth in Westinghouse Topical Report WCAP-16009-P-A, Realistic Large-Break LOCA Evaluation Methodology Using the Automated Statistical Treatment of Uncertainty Method (ASTRUM). I&M proposes to endorse this methodology by a revision to Technical Specification (TS) 5.6.5, "Core Operating Limits Report (COLR)."
I&M also requests NRC approval to revise TS 3.4.1, "RCS [Reactor Coolant System] Pressure, Temperature, and Flow Departure from Nucleate Boiling (DNB) Limits," to change the minimum RCS total flow rate from 366,400 to 354,000 gallons per minute (gpm). I&M states that the current value is a minimum measured flow value includes allowances for flow uncertainty, and that current practice is that the thermal design flow value, which does not include allowances for flow measurement uncertainty, be specified in TSs. The minimum measured flow is specified in the COLR. That value is currently 354,000 gpm and is also reflected in the new LBLOCA analyses.
Finally, I&M proposes to amend TS 3.5.2, ECCS - Operating. Condition D allows the unit to be in Mode 1, 2, or 3 for an unlimited amount of time if a Safety Injection (SI) system cross-tie valve is closed, provided that thermal power is reduced to less than or equal to a specified value. The new LBLOCA analysis being proposed does not address a condition in which an SI cross-tie valve is closed. Therefore, the allowance provided by Condition D will be deleted, as well as reference to Condition D in TS 3.5.2, Conditions A and C.
The NRC staff in the Reactor Systems Branch has reviewed I&M's submittal and developed draft requests for additional information (RAI). The draft RAIs are provided as an attachment to this e-mail. The NRC staff would like to discuss the draft RAIs with you in a conference call or meeting. Among other things, the discussion will include how the NRC would formally issue these questions and how the licensee will respond to them.
The sole purpose of this e-mail and its attachment is to prepare you and others for the proposed conference call or meeting. This e-mail and its attachment do not convey a formal NRC staff position, and do not formally request for additional information.
Please don't hesitate to contact me if you have any questions or concerns.
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 E-mail Properties Mail Envelope Properties (BB882299B277DB4C9C9A613B507A6F601DC6B26E90)
Subject:
Donald C. Cook Nuclear Plant, Unit 2 (CNP-2) - Draft RAIs re: LBLOCA Amendment Request (ME1017)
Sent Date: 7/16/2009 8:18:48 AM Received Date: 7/17/2009 11:20:00 AM From: Beltz, Terry Created By: Terry.Beltz@nrc.gov Recipients:
mkscarpello@aep.com ('mkscarpello@aep.com')
Tracking Status: None pgschoepf@aep.com ('pgschoepf@aep.com')
Tracking Status: None jazwolinski@aep.com ('jazwolinski@aep.com')
Tracking Status: None jmpetro@aep.com ('jmpetro@aep.com')
Tracking Status: None Tai.Huang@nrc.gov (Huang, Tai)
Tracking Status: None Post Office:
HQCLSTR01.nrc.gov Files Size Date & Time MESSAGE 70620 7/16/2009 DC Cook, Unit 2 - LBLOCA LAR - Draft RAIs.doc 58058
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Priority: olImportanceNormal ReplyRequested: False Return Notification: False Sensitivity: olNormal Recipients received:
