Letter Sequence RAI |
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MONTHYEARML0618607302006-07-0505 July 2006
Proposed Technical Specifications Change Revision of Main Control Room and Emergency Switchgear Room Air Conditioning System Requirements
Project stage: Request
ML0706505242007-02-26026 February 2007
Proposed Technical Specifications Change Temporary 45-Day and 14-Day Allowed Outage Times to Replace Main Control Room and Emergency Switchgear Room Air Conditioning System Chilled Water Piping
Project stage: Request
ML0709600372007-04-0505 April 2007
Proposed Technical Specifications Change Re Temporary 45-Day and 14-Day Allowed Outage Times to Replace Main Control Room and Emergency Switchgear Room Air Conditioning System Chilled Water Piping
Project stage: Request
ML0711700902007-05-0303 May 2007
Request for Additional Information Regarding the Proposal to Revise Technical Specifications for Temporary 45-Day and 14-Day Allowed Outage Times (TAC Nos. MD46222 and MD4623)
Project stage: RAI
ML0713503562007-05-14014 May 2007
License Renewal Commitment, Pressurizer Surge Line Weld Inspection Plan Summary
Project stage: Other
ML0715502022007-05-31031 May 2007
Proposed Technical Specifications Change, Temporary 45-Day and 14-Day Allowed Outage Times to Replace Main Control Room and Emergency Switchgear Room Air Conditioning System Chilled Water Piping, Response to NRC RAI
Project stage: Request
ML0714902312007-05-31031 May 2007
Request for Additional Information Regarding the Proposal to Revise Technical Specification for Temporary 45-Day and 14-Day Allowed Outage Times to Replace Chilled Water Piping...(Tac Nos. MD4622 and MD4623)
Project stage: RAI
ML0717602122007-06-0505 June 2007
MCR &Esgr Chilled Water Piping Replacement
Project stage: Other
ML0718403872007-07-0303 July 2007
MCR and ESGR Chilled Water Piping Replacement (Risk Assessment RAI)
Project stage: RAI
ML0719401282007-07-12012 July 2007
MCR and ESGR Chilled Water A/C System Piping Replacement
Project stage: Other
ML0719303632007-07-12012 July 2007
MCR and ESGR e-mail Surry RAI Response for La
Project stage: RAI
ML0719701832007-07-13013 July 2007
Proposed Technical Specification Change, Temporary 45-Day and 14-Day Allowed Outage Times to Replace Main Control Room and Emergency Switchgear Room Air Conditioning System Chilled Water Piping Additional Information Backup Cooling
Project stage: Other
ML0720600222007-07-20020 July 2007
Temporary 45-Day and 14-Day Allowed Outage Times to Replace Main Control Room and Emergency Switchgear Room Air Conditioning System Chilled Water Piping, Response to Request for Additional Information
Project stage: Response to RAI
ML0726811712007-09-25025 September 2007
Proposed Technical Specifications Change Supplement Re Operable Definition Modification for Air Handling Units While in Temporary 45-Day Allowed Outage Times
Project stage: Request
ML0733212712007-11-28028 November 2007
Proposed Additional Technical Specifications Change, Operable Definition Modification for Air Handling Units While in Temporary 45-day Allowed Outage Times to Perform Required Surveillances
Project stage: Request
ML0801505442008-01-14014 January 2008
Revisions to Proposed Technical Specifications Changes, Temporary 45-day and 14-day Allowed Outage Times to Replace MCR and ESGR Air Conditioning System Chilled Water Piping and Operable Definition Modification to Perform
Project stage: Request
ML0802401202008-01-23023 January 2008
Tech Spec Pages for Amendments 258 and 257 Regarding Replacement of Main Control Room and Emergency Switchgear Room Air-Conditioning System Chilled Water Piping
Project stage: Other
ML0734802872008-01-23023 January 2008
Issuance of Amendments 258 and 257 Regarding Replacement of Main Control Room and Emergency Switchgear Room Air-Conditioning System Chilled Water Piping
Project stage: Approval
2007-06-05
[Table View] |
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From: Siva LingamTo:gary.D.Miller@Dom.comDate: 7/3/2007 1:45:17 PM
Subject:
Re: SURRY RAI RESPONSEAttached please find additional RAIs Andrew wants to discuss with a conference call. Pleasegive me a call.Siva P. LingamProject Manager (NRR/DORL/LPL2-1)
Surry Nuclear Station Location: O8-D5 Mail Stop: O8-G9 Telephone: 301-415-1564 Fax: 301-415-1222 E-mail address: spl@nrc.gov>>> Andrew Howe 7/3/2007 1:37 PM >>>I have reviewed Surry's 6/28 response to APLA's RAI. Some additional clarifications are still required, and perhaps a phone call might be appropriate:
6/5/07 RAI
a - Is control room abandonment for high temperature conditions proceduralized and trained, and what is the cue(s) for abandonment? Is the control room equipment qualified up to the temperature at which abandonment occurs, or are equipment failures possible due to high temperatures prior to abandonment?
b - Why is RCP seal integrity not a requirement for a remote safe shutdown?
c - Is a long term AFW supply available to maintain hot standby conditions without transition to cold shutdown and RHR cooling?
d - What is changed in the ESGRs such that less cooling is required depending upon the control staff location?
e - What probability is used for successful transfer to the ASP, and what is the basis for that probability?
f - Would the nonsafety chillers in fact be available and used rather than control room abandonment (i.e., is this a conservative assumption, or does it reflect actual plant limitations)?
Andrew J Howe USNRC - Office of Nuclear Reactor Regulation Division of Risk Assessment 301-415-3078 CC:Andrew Howe Mail Envelope Properties(468A8B2D.529 : 13 : 35786)
Subject:
Re: SURRY RAI RESPONSECreation Date7/3/2007 1:45:17 PMFrom: Siva LingamCreated By:SPL@nrc.govRecipientsActionDate & TimeDom.comTransferred7/3/2007 1:45:52 PM gary.D.Miller (gary.D.Miller@Dom.com)nrc.gov OWGWPO04.HQGWDO01Delivered7/3/2007 1:45:24 PM AJH1 CC (Andrew Howe)Opened7/3/2007 1:46:17 PMPost Office DeliveredRoute Dom.com OWGWPO04.HQGWDO017/3/2007 1:45:24 PMnrc.govFilesSizeDate & Time MESSAGE28357/3/2007 1:45:17 PMOptions Auto Delete:
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