Letter Sequence Draft RAI |
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MONTHYEARML0726900832001-09-21021 September 2001
Tech Spec Page for Amendment 281 Regarding Reactor Trip on Low Turbine Oil Pressure
Project stage: Other
ML0626905002006-09-15015 September 2006
Technical Specification Change for Reactor Trip on Low Turbine Oil Pressure
Project stage: Other
ML0633504122006-12-0101 December 2006
Draft RAI on Amendment Re Turbine Control System Fluid Oil Pressure
Project stage: Draft RAI
ML0700401882007-01-0303 January 2007
Request for Conference Call Re. Proposed Amendment
Project stage: Other
ML0701104412007-01-11011 January 2007
Additional Draft RAI Re. Proposed Amendment
Project stage: Draft RAI
ML0712200812007-04-20020 April 2007
Response to Request for Additional Information Regarding Technical Specification Change for Reactor Trip on Low Turbine Oil Pressure
Project stage: Response to RAI
ML0710705942007-04-20020 April 2007
Request for Additional Information Regarding Proposed Amendment Regarding Turbine Control Fluid Oil System Modification
Project stage: RAI
ML0713506602007-05-15015 May 2007
Second Round of Draft RAI on the 9/15/07 Amendment Request
Project stage: Draft RAI
ML0717202192007-06-28028 June 2007
Request for Additional Information for Proposed Amendment Re. Reactor Trip on Turbine Oil Pressure
Project stage: RAI
ML0719803932007-07-0606 July 2007
Technical Specification Change for Reactor Trip on Low Turbine Oil Pressure Request for Additional Information
Project stage: Request
ML0722002522007-07-25025 July 2007
Technical Specification Change for Reactor Trip on Low Turbine Oil Pressure Request for Additional Information
Project stage: Request
ML0721806392007-09-21021 September 2007
Issuance of License Amendment 281 Regarding Reactor Trip on Low Turbine Oil Pressure
Project stage: Approval
2007-04-20
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Text
From: Peter Tam To: Scarpello, Michael; Simpson, Sue; Vasey, Bob Date: 01/11/2007 11:42:18 AM
Subject:
D.C. Cook: Additional Draft RAI re. Proposed Amendment (TAC MD3161)
Sue:
This refers to your application for amendment dated 9/15/06 for D.C. Cook Unit 2.
As you requested, our I&C reviewer Hukam Garg wrote out the 2 questions that he verbally stated in the conference call today (1/11/07):
(1) Setpoint Calculation Methodology: Provide documentation (including sample calculations) of the methodology used for establishing the limiting setpoint (or NSP) and the limiting acceptable values for the as-found and as-left setpoints as measured in periodic surveillance testing as described below. Indicate the related analyutical limits and other limiting design values (and the sources of these values) for the setpoint.
(2) This setpoint has been determined to be not SL-related by the licensee. Describe the measures to be taken to ensure that the associated instrument channel is capable of performing its specified safety functions in accordance with applicable design requirements and associated analyses. Include in your discussion information on the controls you employ to ensure that the as-left trip setting after completion of periodic surveillance is consistent with your setpoint methodology. Also, discuss the plant corrective action processes (including plant procedures) for restoring channels to operable status when channels are determined to be "inoperable" or "operable but degraded." If the controls are located in a document other than the TS (e.g., plant test procedure), describe how it is ensured that the control will be implemented.
(3) Discuss any interface between the reactor trip on low turbine oil pressure and programmable logic controller used for turbine control. If these are interfaces between the two, provide justification for the acceptability of these interfaces.
Peter S. Tam, Senior Project Manager Plant Licensing Branch III-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation e-mail: pst@nrc.gov Tel.: 301-415-1451 CC: Garg, Hukam; Jin-Sien Guo; Schulten, Carl S Mail Envelope Properties (45A668EA.17E : 12 : 35330)
Subject:
D.C. Cook: Additional Draft RAI re. Proposed Amendment (TAC MD3161)
Creation Date 01/11/2007 11:42:18 AM From: Peter Tam Created By: PST@nrc.gov Recipients Action Date & Time
aep.com Transferred 01/11/2007 11:42:51 AM mkscarpello (Michael Scarpello) rgvasey (Bob Vasey) sdsimpson (Sue Simpson) nrc.gov OWGWPO02.HQGWDO01 Delivered 01/11/2007 11:42:23 AM HCG CC (Hukam Garg) Opened 01/11/2007 1:07:36 PM JSG CC (Jin-Sien Guo) nrc.gov TWGWPO02.HQGWDO01 Delivered 01/11/2007 11:42:19 AM CSS1 CC (Carl S Schulten) Opened 01/11/2007 11:48:57 AM Post Office Delivered Route aep.com OWGWPO02.HQGWDO01 01/11/2007 11:42:23 AM nrc.gov TWGWPO02.HQGWDO01 01/11/2007 11:42:19 AM nrc.gov Files Size Date & Time MESSAGE 2700 01/11/2007 11:42:18 AM Options Auto Delete: No Expiration Date: None Notify Recipients: Yes Priority: Standard ReplyRequested: No Return Notification: None Concealed
Subject:
No Security: Standard To Be Delivered: Immediate Status Tracking: Delivered & Opened
