ML11165A109

OL - FW: Updated OI List

ML11165A109
Person / Time
Site:	Watts Bar
Issue date:	05/26/2011
From:	Office of Nuclear Reactor Regulation
To:	Division of Operating Reactor Licensing
References
Download: ML11165A109 (70)

Text

WBN2Public Resource From: Poole, Justin Sent: Thursday, May 26, 2011 2:21 PM To: Crouch, William D; Clark, Mark Steven; Hilmes, Steven A Cc: WBN2HearingFile Resource

Subject:

FW: Updated OI List Attachments: 20110526 Open Item List Master NRC Update 05-26-11.docx Given the holiday, I am sending this today rather than Friday.

Justin C. Poole Project Manager NRR/DORL/LPWB U.S. Nuclear Regulatory Commission (301)4152048 email: Justin.Poole@nrc.gov From: Darbali, Samir Sent: Thursday, May 26, 2011 2:18 PM To: Poole, Justin Cc: Rahn, David

Subject:

Updated OI List

Justin, Attached is the updated OI list to be forwarded to TVA.

Thanks, Samir 1

Hearing Identifier: Watts_Bar_2_Operating_LA_Public Email Number: 383 Mail Envelope Properties (19D990B45D535548840D1118C451C74D840AB185A2)

Subject:

FW: Updated OI List Sent Date: 5/26/2011 2:21:18 PM Received Date: 5/26/2011 2:21:19 PM From: Poole, Justin Created By: Justin.Poole@nrc.gov Recipients:

"WBN2HearingFile Resource" <WBN2HearingFile.Resource@nrc.gov>

Tracking Status: None "Crouch, William D" <wdcrouch@tva.gov>

Tracking Status: None "Clark, Mark Steven" <msclark0@tva.gov>

Tracking Status: None "Hilmes, Steven A" <sahilmes@tva.gov>

Tracking Status: None Post Office: HQCLSTR02.nrc.gov Files Size Date & Time MESSAGE 450 5/26/2011 2:21:19 PM 20110526 Open Item List Master NRC Update 05-26-11.docx 554759 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:

Recipients Received:

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N B (

1.

001 All All A The Watts Bar Nuclear Plant FSAR red-line for Unit 2 (Agency 12/15/2009 Presentation Slides Y Closed Closed EICB RAI 3/12/2010 NNC 11/19/09: The FSAR contains B (

2.

002 All All A Are there I&C components and systems that have changed to a 12/15/2009 Presentation Slides Y Closed Closed EICB RAI 3/12/2010 NNC 11/19/09: The FSAR contains B (

3.

003 All All A Because a digital I&C platform can be configured and programmed 12/15/2009 Presentation Slides Y Closed Closed EICB RAI 3/12/2010 NNC 11/19/09: The FSAR contains

( ( ( ( B 004 All All Please identify the information that will be submitted for each Responder: Webb 1/13/10 Public Meeting 4. Y Closed Closed EICB RAI January 13, 2010 NNC 11/19/09: LIC-110 Rev. 1 Section 005 7.1.3. By letter date February 28, 2008 (Agencywide Documents Access Responder: Craig/Webb 5. Y Closed Closed EICB RAI TVA Letter dated 006 Amendment 95 of the FSAR, Chapter 7.3, shows that change 7.3-1 By letter dated February 5, 2010: TVA provided the Unit 2 6. Y Closed Closed EICB RAI TVA Letter dated NNC: WCAP-12096 Rev. 7 D D D D 007 7.1.3. The setpoint methodology has been reviewed and approved by the TVA Letter Dated March 12, 2010 (Enclosure 1, Item No. 7 7. Y Closed Closed EICB RAI TVA Letter dated TVA to provide Rev. 8 of the Unit 1

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008 7.3 There are several staff positions that provide guidance on setpoint TVA Letter Dated March 12, 2010 (Enclosure 1, Item No. 8 8. Y Closed Closed EICB RAI TVA Letter dated a a a a (

009 7.3.2 5.6, Change 7.3-2, identified in Watts Bar Nuclear Plant FSAR red-line TVA Letter Dated March 12, 2010 (Enclosure 1, Item No. 9 9. Y Closed Closed EICB RAI 3/12/10, G G G G G 010 7.3 7.3 The original SER on Watts Bar (NUREG-0847) documents that the TVA Letter Dated March 12, 2010 (Enclosure 1, Item No. 10 10. Y Closed Closed EICB RAI 3/12/10, 011 7.3.2 5.6, NUREG-0847 Supplement No. 2 Section 7.3.2 includes an TVA Letter Dated March 12, 2010 (Enclosure 1, Item No. 11 11. Closed Closed EICB RAI ML101680598, A

Y 012 7.4 7.4 The original SER on Watts Bar (NUREG-0847) documents that the TVA Letter Dated March 12, 2010 (Enclosure 1, Item No. 12 12. Y Closed Closed EICB RAI TVA Letter dated 013 7.1.3. Chapter 7 and Chapter 16 of Amendment 95 to the FSAR do not TVA Letter Dated March 12, 2010 (Enclosure 1, Item No. 13 13. Y Closed Closed EICB RAI TVA Letter dated TS have been docketed.

( ( B 014 All All Provide the justification for any hardware and software changes Date: 4/27/10 14. Y Closed Closed NRC Meeting TVA Letter dated 015 Verify that the refurbishment of the power range nuclear Date: 4/27/10 15. Y Closed Closed NRC Meeting TVA Letter dated 016 Identify the precedents in license amendment requests (LARs), if Date: 4/27/10 16. Y Closed Closed NRC Meeting TVA Letter dated

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017 7.3.1 7.3.1, Identify precedents in LARs, if any, for the solid state protection Date: 4/27/10 17. Y Closed Closed NRC Meeting TVA Letter dated

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018 Identify any changes made to any instrumentation and control Date: 4/27/10 18. Y Closed Closed NRC Meeting TVA Letter dated 019 Verify that the containment purge isolation radiation monitor is the Date: 4/27/10 19. Y Closed Closed NRC Meeting TVA Letter dated C a a C (

020 Provide environmental qualification information pursuant to Section Date: 4/27/10 20. Y Closed Closed NRC Meeting TVA Letter dated NNC 4/30/10: SRP Section 7.0 states:

G G G G G G 021 7.3 For the Foxboro Spec 200 platform, identify any changes in Date: 5/25/10 21. Y Closed Closed NRC Meeting TVA Letter dated The resolution of this item will be A

022 7.3.2 5.6, Verify the auxiliary feedwater control refurbishment results in a like- Date: 4/27/10 22. Y Closed Closed NRC Meeting TVA Letter dated 023 Provide environmental qualification (10 CFR 50.49) information for Date: 4/27/10 23. Y Closed Closed NRC Meeting TVA Letter dated NNC 4/30/10: SRP Section 7.0 states:

024 Provide a schedule by the January 13, 2010, meeting for providing During the January 13, 2010 meeting, TVA presented a 24. Y Closed Closed NRC Meeting N/A - Request for NNC 4/30/10: Carte to address

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025 7.5.2 7.5.1 For the containment radiation high radiation monitor, verify that the Date: 4/27/10 25. Y Closed Closed NRC Meeting ML101230248, 026 Provide environmental qualification (10 CFR 50.49) information for Date: 4/27/10 26. Y Closed Closed NRC Meeting TVA Letter dated NNC 4/30/10: SRP Section 7.0 states:

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027 7.7.1. For Foxboro I/A provide information regarding safety/non-safety- Date: 4/27/10 27. Y Closed Closed NRC Meeting TVA Letter dated 028 For the turbine control AEH system, verify that the refurbishment Responder: Mark Scansen 28. Y Closed Closed NRC Meeting TVA Letter dated C C C C C S 029 For the rod control system, verify that the refurbishment results in a Date: 4/27/10 29. Y Closed Closed NRC Meeting TVA Letter dated G G G G 030 Regarding the refurbishment of I&C equipment, identify any Responder: Clark 30. Y Closed Closed NRC Meeting TVA Letter dated 031 For the rod position indication system (CERPI), provide information Date: 4/27/10 31. Y Closed Closed NRC Meeting TVA Letter dated CERPI is non-safety related.

i 032 For the process computer, need to consider cyber security issues Date: 4/27/10 32. Y Closed Closed NRC Meeting TVA Letter dated EICB will no longer consider cyber 033 For the loose parts monitoring system, provide information Date: 4/27/10 33. Y Closed Closed NRC Meeting TVA Letter dated The loose parts monitoring system is 034 2/4/2010 Responder: TVA 34. Y Closed Closed N/A TVA Letter dated 034. ( Chapter 7.1 - Introduction 35. Y Closed Closed N/A N/A

( a 034. D Chapter 7.2 - Reactor Trip System 36. Y Closed Closed N/A N/A M ( r 034. 7.3 7.3 a Chapter 7.3 - ESFAS 37. Y Closed Closed N/A N/A a G g 034. 7.5.1. 7.5.2 Chapter 7.5 - Instrumentation Systems Important to Safety 38. Y Closed Closed N/A N/A Closed 034. 7.5.1. 7.5.2 Chapter 7.6 - All Other Systems Required for Safety 39. Y Closed Closed N/A N/A Closed r

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034. Chapter 7.7 Control Systems 40. Y Closed Closed N/A N/A n

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/

035 ( 2/18/2010 Responder: Clark 41. Y Closed Closed RAI No. 1 TVA Letter dated LIC-110 Section 6.2.2 states: Design

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M 036 7.5.2 7.5.1 C S February 18, 2010 Date: 5/25/10 42. Y Closed Closed NRC Meeting NNC: Unit 2 FSAR Section 7.5.1, Post a

i 037 7.5.1. 7.5.2 2/18/2010 Responder: Clark Date: 5/25/10 43. Y Closed Closed N/A TVA Letter dated FSAR Amendment 100 provides

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N 038 7.5.1. 7.5.2 ( 2/18/2010 Responder: Clark Date: 5/25/10 44. Y Closed Closed EICB RAI TVA Letter dated The slides presented at the December 039 ( ( M January 13, 2010 Responder: Clark Date: 5/25/10 45. Y Closed Closed EICB RAI FSAR amendment The equation for the calculation of the G G a 040 January 13, 2010 Responder: Clark Date: 5/25/10 46. Y Closed Closed EICB RAI EICB RAI FSAR amendment The equation for the calculation of the 041 7.5.2 7.5.1 2/19/2010 Responder: WEC 1. N Open Open-NRC Review NRC Meeting TVA Letter dated See also Open Item Nos. 226 & 270.

EICB (Carte)

Summary NRC 6/18/10 Please provide the following Westinghouse documents: Items (1) and (2) were docketed by TVA letter dated April 8, Pending Submittal of the Test Due 3/29/11 Meeting Summary (1) WNA-DS-01617-WBT Rev. 1, "PAMS System Requirements 2010. Summary Report due 3/29/11 ML093560019, Item TVA Letter dated Specification" NNC 1/27/11: Issues No. 11 10/5/10 (2) WNA-DS-01667-WBT Rev. 0, "PAMS System Design Item (3) will be addressed by Revision 2 of the Licensing Final Response included in letter with the STP were Specification" Technical Report. Due 12/3/10 dated 12/3/10 discussed in the weekly (3) WNA-CD-00018-GEN Rev. 3, "CGD for QNX version 4.5g" public meetings.

Please provide the following Westinghouse documents or pointers Item (4) will be addressed by Westinghouse developing a Partial Response is included in Westinghouse to:

to where the material was reviewed and approved in the CQ TR or WBN2 Specific Test Plan to compensate for the fact that the letter dated 10/5/10. (1) perfrom STP self SPM: NRC disapproved WNA-PT-00058-GEN during the original The SysRS and SRS incorporate assessment., and (4) WNA-PT-00058-GEN Rev. 0, "Testing Process for Common Q Common Q review. Due 12/7/10 requirements from many other (2) Augment Test Safety systems" documents by reference. Summary report to (5) WNA-TP-00357-GEN Rev. 4, "Element Software Test Item (5) Procedures that are listed in the SPM compliance provide missing test Procedure" table in the Licensing Technical Report revision 1 supersede NNC 8/25/10: (3) An earlier version plan information that test procedure WNA-TP-00357-GEN.Due 10/22/10 of this report was docketed for the Common Q topical report; therefore, NNC 2/3/11: At next For Item 3, Attachment 19 contains the Westinghouse there should be no problem to audit compare &

document Post-Accident Monitoring System (PAMS) docket this version. (4) Per discuss:

Licensing Technical Report, WNA-LI-00058-WBT, Revision ML091560352, the testing process (1) WNA-PT-00058-2, dated December 2010. Attachment 20 contains the document does not address the test GEN Rev. 0 Westinghouse Application for Withholding for the Post- plan requirements of the SPM. (2) WNA-PT-00138-Accident Monitoring System (PAMS) Licensing Technical Please provide a test plan that WBT Rev. 0 Report, WNA-LI-00058-WBT, Revision 2, dated December implements the requirements of the (3) AP1000 STP 2010. SPM.

For Item 4, Attachment 9 contains the Westinghouse document Nuclear Automation Watts Bar 2 NSSS Completion Program I&C Projects, Post Accident Monitoring System Test Plan, WNA-PT-00138-WBT, Revision 0, dated November 2010. Attachment 10 contains the Westinghouse Application for Withholding for the WNA-PT-00138-WBT, Revision 0 Nuclear Automation Watts Bar 2 NSSS Completion Program I&C Projects, Post Accident Monitoring System Test Plan, WNA-PT-00138-WBT, Revision 0, dated November 17, 2010.

TVA Response to Follow-up NRC Request:

(1) WEC presented the results of the self assessment to the NRC on February 2, 2011.

(2) By agreement between TVA, WEC and the NRC, the Post Accident Monitoring System Test Plan, WNA-PT-00138-WBT, Revision 0 will not be revised. Instead a non-proprietary Common Q PAMS Test Summary Report will be developed and submitted to address the issues with the STP. Attachment 1 contains non-proprietary WNA-TR-02451-WBT, Revision 0, Test Summary Report for the Post Accident Monitoring System, dated March 2011.

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47. Y 042 All All A February 25, 2010: Telecom Date: 5/25/10 Closed Closed EICB RAI TVA Letter dated The drawing provided did not have the 043 7.5.2 7.5.1 CB (C 2/19/2010 Responder: WEC 2. N Open Open-NRC Review EICB RAI TVA Letter dated NNC 8/25/10: A CQ PAMS ISG6 art Date: 5/25/10 ML102910002 2/5/10 compliance matrix was docketed on: (1)

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N The PAMS ISG6 compliance matrix supplied as Enclosure 1 to Pending Submittal of Revision 3 of Due 3/29/11 Item No. 2 February, 5 12010, (2) March 12, 2010, TVA letter dated February 5, 2010 is a first draft of the information The PAMS ISG6 compliance matrix supplied as Enclosure 1 the Licensing Technical Report due TVA Letter dated & (3) June 18, 2010. The staff has needed. The shortcomings of the first three lines in the matrix are: to TVA letter dated February 5, 2010 is a first draft of the 3/29/11. NNC 2/2/11: Issues 5/12/10 expressed issued with all of these information needed. with Common Q TR & compliance evaluations. The staff is still Line 1: Section 11 of the Common Q topical report did include a Revised response included in letter SPM compliance were TVA Letter dated waiting for a good compliance commercial grade dedication program, but this program was not By letter dated April 8, 2010 TVA provided the PAMS dated 12/22/10. discussed in the weekly 6/18/10 evaluation.

approved in the associated SE. Westinghouse stated that this was Licensing Technical Report provided additional information. public meetings.

the program and it could now be reviewed. The NRC stated that Response is included in letter dated Westinghouse to TVA Letter dated NNC 11/23/10: WNA-LI-00058-WT-P TVA should identified what they believe was previously reviewed Attachment 3 contains the revised Common Q PAMS ISG-6 10/5/10. perform Common Q TR 10/5/10 Rev. 1 Section 7 does not include the and approved. Compliance Matrix, dated June 11, 2010, that addresses & SPM compliance self RSED documents, and it should. Table these items (Reference 13). Revised compliance matrix is assessment; his will be 6-1 Item No. 15 should also include the Line 2: TVA stated the D3 analysis was not applicable to PAMS, unacceptable. discussed in detail on RSED RTMs.

but provided no justification. The NRC asked for justification since By letter Dated June 18, 2010 (see Attachment 3) TVA the next audit.

SRP Chapter 7.5 identified SRM to SECV-93-087 Item II.Q as provided a table, "Watts Bar 2 - Common Q PAMS ISG-6 NNC 8/12/10: It is not quite enough being SRP acceptance criteria for PAMS. Compliance Matrix." to provide all of the documents requested. There are two possible Line 3: TVA identified that the Design report for computer integrity It is TVAs understanding that this comment is focused on routes to review that the NRC can was completed as part of the common Q topical report. The NRC the fact that there are documents that NRC has requested undertake: (1) follow ISG6, and (2) noted that this report is applicable for a system in a plant, and the that are currently listed as being available for audit at the follow the CQ SPM. The TVA CQ topical report did no specifically address this PAMS system at Westinghouse offices. For those Common Q PAMS response that was originally Watts Bar Unit 2. documents that are TVA deliverable documents from pursued was to follow ISG6, but Westinghouse, TVA has agreed to provide those to NRC. some of the compliance items for NRC then concluded that TVA should go through and provide a Westinghouse documents that are not deliverable to TVA will ISG6 were addressed by more complete and thorough compliance matrix. be available for audit as stated above. Requirements referencing the SPM. The NRC Traceability Matrix issues will be tracked under NRC RAI approved the CQ TR and Matrix Items 142 (Software Requirements Specification) and associated SPM; it may be more 145 (System Design Specification). Commercial Item appropriate to review the WBN2 Dedication issues will be tracked under NRC RAI Matrix PAMS application to for adherence Item 138. This item is considered closed. to the SPM that to ISG6. In either path chosen, the applicant should TVA Response to Follow-up NRC Request: provide documents and a justification for the acceptability of WNA-LI-00058-WT-P, Revision 2, Post-Accident Monitoring any deviation from the path chosen.

System (PAMS) Licensing Technical Report submitted in For example, it appears that the TVA Letter to NRC dated December 3, 2010, (Reference 1) Westinghouse's CDIs are contains the following changes to address the NRC commercial grade dedication plans, requests: but Westinghouse maintains that they are commercial grade (1) While RSEDs are not specifically mentioned, Section 7 dedication reports; this apparent has been revised to be applicable to both hardware and deviation should be justified or software which includes the RSEDs. explained.

(2) Table 6-1 item 15 reference added for WNA-VR-00280-WBT (RESD)

TVA Response to Second Follow-up NRC Request:

The NRC audited the Westinghouse commercial item dedication process for both hardware and software during the week of February 28 to March 4, 2011. The audif found the processes acceptable. Westinghouse and TVA previously agreed to provide additional information to address this item in Revision 3 of the Licensing Technical Report.

Attachment 2 contains WNA-LI-00058-WBT-P, Post-Accident Monitoring System (PAMS) Licensing Technical Report, Revision 3, dated March 2011 (proprietary).

Attachment 3 contains WNA-LI-00058-WBT-NP, Post-Accident Monitoring System (PAMS) Licensing Technical

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N Report, Revision 3 dated March 2011 (non-proprietary).

Attachment 4 contains CWA-11-311, Application for Withholding Proprietary Information from Public Disclosure, WNA-LI-00058-WBT-P, Revision 3 Nuclear Automation Watts Bar 2 NSSS Completion Program I&C Projects, Post-Accident Monitoring System (PAMS) Licensing Technical Report, dated March 14, 2011.

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044 7.5.2 7.5.1 February 25, 2010 Date: 5/25/10 48. Y Closed Closed EICB RAI TVA Letter dated 045 February 25, 2010 Date: 5/25/10 49. Y Closed Closed EICB RAI TVA Letter dated

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046 February 25, 2010 Date: 5/25/10 50. Y Closed Closed N/A - Request for N/A C C C C C C C 047 7.5.2 7.5.1 4/8/2010 Responder: WEC/Hilmes Date: 5/25/10 51. Y Closed Closed EICB RAI TVA Letter dated 048 7.5.2 7.5.1 April 8, 2010 Date: 5/25/10 52. Y Closed Closed EICB RAI TVA Letter dated G

049 7.5.2 7.5.1 4/8/2010 Responder: WEC Date: 5/25/10 53. Y Closed Closed EICB RAI TVA Letter dated 050 7.5.2 7.5.1 4/8/2010 Responder: WEC Date: 5/25/10 54. N Closed Closed EICB RAI TVA Letter dated NNC 11/18/10: SysRS Rev. 2 contains 051 April 15, 2010 Date: 5/25/10 55. Y Closed Closed N/A N/A Review addressed by another Open

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052 7.5.2 7.5.1 April 19, 2010 Date: 5/25/10 56. Y Closed Closed RAI No. 12 S

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053 7.5.2 7.5.1 April 19, 2010 Date: 5/25/10 57. Y Closed Closed RAI No. 13 S

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054 7.5.2 7.5.1 4/19/2010 Responder: Slifer/Clark Date: 5/25/10 58. Y Closed Closed RAI No. 14 TVA Letter dated S

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055 7.5.2 7.5.1 4/19/2010 Responder: Slifer/Clark Date: 5/25/10 59. Y Closed Closed RAI No. 15 TVA Letter dated S

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056 April 19, 2010 Date: 5/25/10 60. Y Closed Closed RAI No. 16 TVA Letter dated Sorrento Radiation Monitoring S

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057 7.5.2 7.5.1 4/19/2010 Responder: TVA I&C Staff Date: 5/25/10 61. Y Closed Closed RAI No. 17 TVA Letter dated S

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058 7.5.0 7.5 April 19, 2010 Date: 5/25/10 62. Y Closed Closed RAI No. 18 TVA Letter dated S

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059 7.5.2 7.5.1 April 19, 2010 Date: 63. Y Closed Closed RAI No. 19 TVA Letter dated 060 7.5.2 7.5.1 April 19, 2010 Date: 5/25/10 64. Y Closed Closed N/A N/A Addressed by Open Item No. 47 061 7.5.2 7.5.1 April 19, 2010 Date: 5/25/10 65. Y Closed Closed N/A N/A Addressed by Open Item No. 48 C C C C C C C S 062 7.5.2 7.5.1 April 19, 2010 Date: 5/25/10 66. Y Closed Closed N/A N/A Addressed by Open Item No. 49 063 7.5.2 7.5.1 April 19, 2010 Date: 5/25/10 67. Y Closed Closed N/A N/A Addressed by Open Item No. 50 i

064 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: Webb Date: 4/8/2010 68. Y Closed Closed N/A - No question TVA Letter dated 065 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10 69. Y Closed Closed N/A - No question TVA Letter dated 066 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10 70. Y Closed Closed N/A - No question TVA Letter dated 067 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10 3. N Open Open-NRC Review N/A - No question TVA Letter dated EICB (Carte) date for the "Commercial Grade Dedication Instructions for AI687, Due: 3/29/11 was asked. Item 6/18/10 AI688, Upgraded PC node box and flat panels." was September The following status is from the revised WB2 Common Q Pending Submittal of Revision 3 of was opened to track 28, 2010. PAMS ISG-6 Compliance Matrix submitted in response to the Licensing Technical Report due comm8ittment Item 43: 3/29/11. NNC 2/2/11: Section 7 made by applicant.

of the WBN2 PAMS

a. AI687, AI688 - Scheduled for September 28, 2010 Response included in letter dated LTR should be updated 12/22/10. to include:

b. Upgraded PC node box and flat panel displays - Per (1) non-proprietary Westinghouse letter WBT-D-2024 (Reference 7), these items This item is addressed in Rev. 2 of description of are available for audit at the Westinghouse Rockville office. the Licensing Technical Report commercial grade dedication, and

c. Power supplies - Per Westinghouse letter WBT-D-2035 (2) Software example (Reference 12), these items are available for audit at the Westinghouse Rockville office. Commercial grade dedication will also be To be addressed during 9/20-9/21 audit addressed at the next audit.

TVA Response to Follow-up NRC Request:

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N WNA-LI-00058-WT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report submitted in TVA Letter to NRC dated December 3, 2010, (Reference 1) contains the following change to address the NRC request:

Section 7, Commercial Grade Dedication Process, has been revised to describe the general commercial grade dedication process for both hardware and software and uses a description of the AI687 dedication process as an example of how the process is applied.

TVA Response to Follow-up NRC Request dated 2/2/11:

The non-proprietary commercial grade dedication discussion is included in Attachment 3, WNA-LI-00058-WBT-NP, Post-Accident Monitoring System (PAMS) Licensing Technical Report, Revision 3 dated March 2011 (non-proprietary)

Section 7. The software example is included in Attachment 2, WNA-LI-00058-WBT-P, Post-Accident Monitoring System (PAMS) Licensing Technical Report, Revision 3, dated March 2011 (proprietary) Section 7.

068 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10 4. N Open Open-NRC Review N/A - No question TVA Letter dated EICB (Carte) date for the "Summary Report on acceptance of AI687, AI688, was asked. Item 6/18/10 Upgraded PC node box, flat panels, and power supplies." was The following status is from the revised WB2 Common Q Response included in letter dated NNC 2/2/11: was opened to track September 28, 2010. PAMS ISG-6 Compliance Matrix submitted in response to 12/22/10. Commercial grade comm8ittment Item 43: dedication will be made by applicant.

addressed at the next

a. AI687, AI688 - Scheduled for September 28, 2010 This item is addressed in Rev. 2 of audit. Summary the Licensing Technical Report reports for AI687 &

b. Upgraded PC node box - Per Westinghouse letter WBT- AI688 were docketed D-2024 (Reference 7), this item is available for audit at the one month late.

Westinghouse Rockville office.

c. Flat panel displays - Per Westinghouse letter WBT-D-2024 (Reference 7), this item is available for audit at the Westinghouse Rockville office.

d. Power supplies - Per Westinghouse letter WBT-D-2035 (Reference 12), these items are available for audit at the Westinghouse Rockville office.

To be addressed during 9/20-9/21 audit TVA Response to Follow-up NRC Request:

For the commercial grade dedication process, please see the response to Request for Additional Information (RAI) item 3 in this letter, NRC Matrix Item 067.

The component level EQ/Seismic summary reports for the hardware listed above are available for NRC review/audit as described below:

(1) AI687 and AI688, the following documents were submitted in TVA Letter to NRC dated October 26, 2010, Watts Bar Nuclear Plant (WBN) Unit 2 -

Instrumentation and Controls Staff Information

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N Requests, (Reference 5):

a. EQ-EV-62-WBT, Revision 0, Common Q PAMS Comparison of Tested Conditions for the AI687 and AI688 Common Q Modules and Supporting Components to the Watts Bar Unit 2 (WBT)

Requirements, dated September 10, 2010

b. EQLR-171, Revision 0, Environmental and Seismic Test Report, Analog Input (AI)687 &

AI688 Modules for use in Common Q PAMS, dated September 10, 2010

c. CN-EQT-10-44, Revision 0, Dynamic Similarity Analysis for the Watts Bar Unit 2 Post Accident Monitoring System (PAMS), dated September 28, 2010 (2) Upgraded PC Node Box - As stated in Westinghouse letter WBT-D-2024, dated June 9, 2010 NRC Access to Common Q Documents at the Westinghouse Rockville Office, (Reference 6), the following documents are available for NRC audit at the Westinghouse Rockville office:

a. CDI-3722, Revision 7, Next Generation PC Node Box Commercial Dedication Instruction

b. LTR-EQ-10-50 PC Node Box/Flat Panel Display System Components Qualification Summary (3) Flat Panel Displays - As stated in Westinghouse letter WBT-D-2024, dated June 9, 2010 NRC Access to Common Q Documents at the Westinghouse Rockville Office, (Reference 6), the following documents are available for NRC audit at the Westinghouse Rockville office:

a. CDI-3803, Revision 8, Next Generation Flat Panel Display (FPD) Commercial Dedication Instruction

b. LTR-EQ-10-50 PC Node Box/Flat Panel Display System Components Qualification Summary (4) Power supplies - As stated in Westinghouse letter WBT-D-2035 dated June 11, 2010 NRC Access to Common Q Documents at the Westinghouse Rockville Office (Reference 7), the following documents are available for NRC audit at the Westinghouse Rockville office:

a. CDI- 4057, Revision 4, Commercial Dedication Instruction

b. EQ-TP-1 05-GEN, Revision 0, Electromagnetic Compatibility Test Plan and Procedure for Quint Power Supplies and Safety System Line Filter

c. Breakers, EQ-TP-114-GEN, Revision 0, Seismic Qualification Test Procedure For Common Q Power Supplies, Quint Power Supplies, Line Filter Assemblies, and South Texas Units 3 & 4 Circuit

d. EQ-TP-117-GEN, Revision 0, Environmental Qualification Test Procedure For Common Q Powe Supplies, Quint Power Supplies, and Line Filter Assemblies 069 7.5.2 7.5.1 CB (C By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10 5. N Open Open-NRC Review N/A - No question N/A art date for the "Watts Bar 2 PAMS Specific FAT Report" was October Due 3/29/11 was asked. Item

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N 2010. Attachment 1 contains non-proprietary WNA-TR-02451- Pending Submittal of the Test was opened to track WBT, Revision 0, Test Summary Report for the Post Summary Report due 3/29/11 NNC 2/3/11: The comm8ittment As agreed, the Watts Bar 2 PAMS Specific FAT Report will not be Accident Monitoring System, dated March 2011. current due dated made by applicant.

submitted. Instead a non-proprietary PAMS Test Summary Report Awaiting for document to be above is 4 months will be submitted. docketed by TVA. later than planned.

( ( ( (

070 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10 71. N Closed Closed N/A - No question TVA Letter dated NNC 11/23/10: The dues date in this 071 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10 72. N Closed Closed N/A - No question N/A NNC 11/23/10: The dues date in this C C C C 072 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10 73. Y Closed Closed N/A - No question N/A 073 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10 74. N Closed Closed N/A - No question N/A 074 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10 6. N Open Open-NRC Review N/A - No question N/A Rev. 4 will be available for the NRC EICB (Carte) date for the Post FAT IV&V Phase Summary Report was was asked. Item audit on 2/28/11. This document will not November 30, 2010. Attachment 1 contains WNA-VR-00283-WBT-P, IV&V Response in letter dated March 16, Due TBD was opened to track be submitted. Rev. 5 will be submitted Summary Report for the Post Accident Monitoring System, 2011 commitment made after resolution of the datastorm display Revision 4, dated March 2011 (proprietary). Attachment 2 NNC 2/3/11: At least 3 by applicant. issue.

contains WNA-VR-00283-WBT-NP, IV&V Summary Report months later than for the Post Accident Monitoring System, Revision 4, dated planned.

March 2011 (non-proprietary). Attachment 3 contains CWA-11-3121, Application for Withholding Proprietary Information from Public Disclosure, WNA-VR-00283-WBT-P, Revision 4 Nuclear Automation IV&V Summary Report for the Post Accident Monitoring System" (Proprietary), dated March 3, 2011.

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075 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10 75. N Closed Closed N/A - No question N/A

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076 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: Clark Date: 5/25/10 76. Y Closed Closed N/A - No question N/A C C C 077 7.5.2 7.5.1 By letter dated March 12, 2010 TVA stated that the target submittal Responder: WEC Date: 5/25/10 77. Y Closed Closed N/A - No question TVA Letter dated G G 078 4/26/2010 Responder: Clark Date: 5/25/10 78. Y Closed Closed EICB RAI TVA Letter dated 079 4/26/2010 Responder: Clark Date: 5/25/10 79. Y Closed Closed EICB RAI TVA Letter dated Reviewed under Item 154

(

080 4/26/2010 Responder: WEC 80. Y Closed Closed RAI No. 2 TVA Letter dated S

i 081 7.5.2 7.5.1 5/6/2010 Responder: Merten/WEC 7. N Open Open-NRC Review EICB RAI TVA Letter dated NNC 1/5/11: See Also Open Item No.

EICB (Carte)

ML102910002 6/18/10 86 and 202.

The PAMS Licensing Technical Report (WNA-LI-00058-WBT Rev. The codes and standards documents listed in Section 7 of ML101600092 Item No.1: There Due 2/25/11 Item No. 9 0, Dated April 2010), in Section 7, lists codes and standards the Common Q PAMS Licensing Technical Report are the are three sets of regulatory criteria NNC 4/125/2011: See Open Item No.

applicable to the Common Q PAMS. This list contains references documents that the Common Q platform was licensed to that relate to a Common Q TVA to provide 364.

to old revisions of several regulatory documents, for example: when the NRC approved the original topical report and application (e.g. WBN2 PAMS): requested information.

(1) RG 1.29 - September 1978 vs. March 2007 issued the approved SER. The WBN Unit 2 Common Q (a) Common Q platform (2) RG 1.53 - June 1973 vs. November 2003 PAMS is designed in accordance with the approved components - Common Q TR NNC 2/3/11: The (a) IEEE 379-1994 vs. -2000 Common Q topical report and approved SER and the codes (b) Application Development above due date has (3) RG 1.75 - September 1975 vs. February 2005 and standards on which the SER was based. Since the Processes - Common Q SPM been missed by at (a) IEEE 384-1992 vs. -1992 current versions referenced are not applicable to WBN Unit (c) Application Specific - current least 2 months.

(4) RG 1.100 - June 1988 vs. September 2009 2, there is no basis for a comparison review. regulatory criteria Please provide new (a) IEEE 344-1987 vs. -2004 The Common Q Topical Report and due date.

(5) RG 1.152 - January 1996 vs. January 2006 Bechtel to develop a matrix and work with Westinghouse to associated appendices primarily (a) IEEE 7-4.33.2-1993 vs. -2003 provide justification. addressed (a) and (b). The (6) RG 1.168 - September 1997 vs. February 2004 Common Q SER states:

(a) IEEE 1012-1986 vs. -1998 TVA Response to Follow-up NRC Request:

(b) IEEE 1028-1988 vs. -1997 Appendix 1, Post Accident (7) IEEE 279-1991 vs. 603-1991 Attachment 4 contains the results of the TVA analysis of Monitoring Systems, provides the (8) IEEE 323-1983 vs. -1974 (RG 1.89 Rev. 1 June 1984 endorses standards and regulatory guides applicable to the Common functional requirements and 323-1974) Q PAMS. Based on the results of the analysis, the Common conceptual design approach for However, LIC-110, "Watts Bar Unit 2 License Application Review," Q PAMS design meets the applicable requirements and is upgrading an existing PAMS based states: "Design features and administrative programs that are acceptable. on Common Q components (page unique to Unit 2 should then be reviewed in accordance with the 58, Section 4.4.1.1, current staff positions." Please identify all differences between the Description)On the basis of the versions referenced and the current staff positions. Please provide above review, the staff concludes

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N a justification for the acceptability PAMS with respect to these that Appendix 1 does not contain differences. sufficient information to establish the generic acceptability of the proposed PAMS design (page 56, Section 4.4.1.3, PAMS Evaluation)

The NRC did not approve the proposed PAMS design. Section 6, References, and Section 7, Codes and Standards Applicable to the Common Q PAMS, of the PAMS Licensing Technical Report contain items that are not the current regulatory criteria.

Please provide an explanation of how the WBN2 PAMS conforms with the application specific regulatory criteria applicable to the WBN2 PAMS design. For example IEEE Std. 603-1991 Clause 5.6.3, Independence Between Safety Systems and Other Systems, and Clause 6.3, Interaction Between the Sense and Command Features and Other Systems, contain application specific requirements that must be addressed by a PAMS system.

Awaiting TVA Response.

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082 7.5.2 7.5.1 5/6/2010 Responder: WEC Date: 6/18/10 81. N Closed Closed EICB RAI TVA Letter dated NNC 11/18/10: See also Open Item No.

083 7.5.2 7.5.1 May 6, 2010 Date: 6/18/10 82. Y Closed Closed EICB RAI TVA Letter dated C C C C 084 7.5.2 7.5.1 May 6, 2010 Date: 6/18/10 83. Y Closed Closed EICB RAI TVA Letter dated 085 7.5.2 7.5.1 5/6/2010 Responder: WEC 84. N Closed Closed EICB RAI 086 7.5.2 7.5.1 5/6/2010 Responder: WEC Date: 5/24/10 8. N Open Open-NRC Review EICB RAI TVA Letter dated NNC 1/6/11: See Also Open Item No.81 EICB (Carte)

ML102910002 6/18/10 & 202 The PAMS Licensing Technical Report (WNA-LI-00058-WBT Rev. The regulatory documents listed in the Common Q PAMS TVA to address with item OI 81. Due 2/25/11 Item No. 14 0, Dated April 2010), in Section 6, lists references applicable to the Licensing Technical Report are the documents that the Common Q PAMS. This list contains references to old revisions of Common Q platform was licensed to when the NRC NNC 2/3/11: The several regulatory documents, for example: approved the original topical report and issued the approved above due date has (1) DI&C-ISG04 - Rev. 0 (ML072540138) vs. Rev. 1 SER. The WBN Unit 2 Common Q PAMS is designed in been missed by at (ML083310185) accordance with the approved Common Q topical report and least 2 months.

However, LIC-110, "Watts Bar Unit 2 License Application Review," approved SER and the regulatory documents on which the Please provide new states: "Design features and administrative programs that are SER was based. Since the current versions referenced are due date.

unique to Unit 2 should then be reviewed in accordance with the not applicable to WBN Unit 2, there is no basis for a current staff positions." Please identify all differences between the comparison review.

versions referenced and the current staff positions. Please provide a justification for the acceptability PAMS with respect to these Rev 0 of the Licensing Technical Report references Rev. 1 of differences. ISG4

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N TVA Response to Follow-up NRC Request:

The analysis for compliance with DI&C-ISG04, Revision 0 to Revision 1 was previously submitted as part of the Common Q PAMS Licensing Technical Report Revision 2 on December 22, 2010. Attachment 4 contains the results of the TVA analysis of standards and regulatory guides applicable to the Common Q PAMS. Based on the results of the analysis, the Common Q PAMS design is acceptable.

(

087 7.5.2 7.5.1 May 6, 2010 Date: 5/24/10 85. Y Closed Closed RAI No. 20 TVA Letter dated S

i 088 7.5.2 7.5.1 ( May 6, 2010 Date: 5/24/10 86. Y Closed Closed RAI No. 21 TVA Letter dated 089 D ( ( ( 5/6/2010 Responder: Clark 87. Y Closed Closed EICB RAI TVA Letter dated NNC: Docketed response states that 090 a C C S 5/6/2010 Responder: Clark Date: 5/25/10 88. Y Closed Closed EICB RAI TVA Letter dated i

091 7.4 7.4 May 20, 2010 Date: 5/25/10 89. Y Closed Closed EICB RAI No.1 TVA Letter dated 092 5/20/2010 Responder: Hilmes 1. Y Open Open-TVA/Oversight Continuous review as items are added DORL Due SER Issue (Poole) TVA to review Licensee Open Item list and determine which items This item will close when we are no longer using this Due: SER Issue are proprietary. document as a communications tool.

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093 May 20, 2010 Date: 5/25/10 90. Y Closed Closed N/A N/A Will be reviewed under item 154 094 5/20/2010 Responder: Clark Date: 5/25/10 91. Y Closed Closed N/A N/A Information was found in FSAR 095 7.8.1, XX D D D D May 20, 2010 Date: 92. Y Closed Closed EICB RAI No. 2 TVA Letter dated 096 7.7.5 XX ( ( 5/20/2010 Responder: 93. Y Closed Closed EICB RAI No.3 TVA Letter dated a a a a G G 097 7.4.2 7.4 May 20, 2010 Date: 94. Y Closed Closed EICB RAI No.4 TVA Letter dated 098 7.4.2 7.4 May 25, 2010 Date: 95. Y Closed Closed EICB RAI No.5 TVA Letter dated 099 ( ( April 12, 2010 Date: 96. Y Closed Closed Closed to Item 129 C B a 97. Y 100 5/20/2010 Responder: WEC Closed Closed N/A - No question N/A 101 4/12/2010 Responder: Slifer 9. Y Open Open-NRC Review N/A TVA is working with the vendor to meet DORL (Poole) the 6/30 date, however there is the The non-proprietary versions of the following RM-1000, The documents, and affidavits for withholding for the listed Documents provided in letter dated Due 10/14/10 potential this will slip to 7/14.

Containment High Range Post Accident Radiation Monitor documents were submitted to the NRC on TVA letter to the 07/15/10 documents will be provided by June 30, 2010. NRC dated July 15, 2010. Confirm receipt.

1. V&V Report 04508006A

2. System Description 04508100-1TM

3. Qualification Reports 04508905-QR, 04508905-1 SP, 04508905-2SP, 04508905-3SP

4. Functional Testing Report 04507007-1TR 102 ( ( May 24, 2010 Date: 5/24/10 98. Y Closed Closed N/A TVA Letter dated Request for schedule not information.

103 7.4 7.4 D D ( 5/27/2010 Responder: Ayala Date: 5/27/10 99. Y Closed Closed EICB RAI No.1 TVA Letter dated Submittal date is based on current a a C 104 7.4 7.4 5/27/2010 Responder: Merten Date: 5/27/10 100. Y Closed Closed EICB RAI No.1 TVA Letter dated Submittal date is based on current

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105 G April 29, 2010 Date: 101. Y Closed Closed N/A N/A Will be reviewed under item 154.

106 May 6, 2010 Date: 5/25/10 102. Y Closed Closed RAI No. 9 TVA Letter dated

(

S i

107 May 6, 2010 Date: 5/28/10 103. Y Closed Closed RAI No. 22 TVA Letter dated

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108 May 6, 2010 Date: 5/25/10 104. Y Closed Closed N/A N/A Will be reviewed under OI#154

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109. 7.8 XX ( ( 5/6/2010 Responder: N/A 105. Y Closed Closed N/A N/A C a S 109. G G 5/6/2010 Responder: N/A 106. Y Closed Closed N/A N/A Duplicate of another open Item.

i 110 May 6, 2010 Date: 107. Y Closed Closed N/A N/A Information was found.

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N 111 May 6, 2010 Date: 5/28/10 108. Y Closed Closed N/A TVA Letter dated Request to help find, not a request for 112 ( June 1, 2010 Date: 109. Y Closed Closed N/A N/A Information was received 113 6/1/2010 Responder: Clark 110. Y Closed Closed EICB RAI TVA Letter dated 114 7.2 7.2 D ( ( 6/1/2010 Responder: WEC 111. Y Close Closed EICB RAI TVA Letter dated 115 ( ( ( ( ( 2/25/2010 Responder: Clark 112. Y Closed Closed EICB RAI TVA Letter dated a C C 116 6/3/2010 Responder: WEC 113. Y Closed Closed EICB RAI TVA Letter dated Letter sent to Westinghouse requesting G G G G G 117 7.1 7.1 6/3/2010 Responder: Hilmes 114. Y Closed Closed EICB RAI TVA Letter dated 118 7.4 7.4 6/8/2010 Responder: Merten 115. Y Closed Closed EICB RAI No.1 TVA Letter dated Submittal date is based on current

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119 June 10, 2010 Date: 116. Y Closed Closed RAI No. 23 TVA Letter dated 120 5/6/2010 Responder: Hilmes/Merten/Costley 117. Y Closed Closed EICB RAI TVA Letter dated 121 5/6/2010 Responder: Webb/Webber 118. Y Closed Closed EICB RAI TVA Letter dated D D D D ( ( ( (

122 June 14, 2010 Date: 119. Y Closed Closed N/A - Request for N/A

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123 7.7.3 7.4.1, 6/14/2010 Responder: 120. Y Closed Closed ML101720589, TVA Letter dated a a a a C C C S 124 7.7.5 XX 6/14/2010 Responder: 121. Y Closed Closed ML101720589, Item TVA Letter dated G G 125 7.7.8 7.7.1.12 6/14/2010 Responder: 122. Y Closed Closed ML101720589, Item TVA Letter dated 126 7.8 7.8 June 14, 2010 Date: 123. Y Closed Closed ML101720589, Item TVA Letter dated i

127 7.2 7.2 6/16/2010 Responder: WEC/Clark 124. Y Closed Closed EICB RAI TVA Letter dated 128 7.2 7.2 6/18/2010 Responder: WEC Drake /TVA Craig 125. Y Closed Closed EICB RAI TVA Letter dated Track through SE open item

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129 P 6/12/2010 Responder: WEC 126. Y Closed Closed N/A TVA Letter dated

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130 P 6/28/2010 Responder: Clark 127. Y Closed Closed N/A TVA Letter dated

(

131 P 6/28/2010 Responder: Clark 128. Y Closed Closed N/A TVA Letter dated

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132 P 6/28/2010 Responder: Clark 129. Y Closed Closed N/A TVA Letter dated

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133 P 6/28/2010 Responder: Clark 130. Y Closed Closed TVA Letter dated

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134 6/28/2010 Responder: Clark 131. Y Closed Closed TVA Letter dated 135 7.3.1 7.3.1 6/30/2010 Responder: Clark 132. Y Closed Closed RAI not necessary TVA Letter dated

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136 7.3.2, 7.4, 5.6, 6/30/2010 Responder: Clark 133. Y Closed Closed RAI not necessary TVA Letter dated C a a P 137 Several WBN2 PAMS documents contain a table titled, Document Responder: WEC 134. Y Closed Closed ML101650255, Item TVA Letter dated 138 By letter dated February 3, 2010, Westinghouse informed TVA that Responder: WEC 10. N Open Open-NRC Review ML101650255, Item See also No. 82.

EICB (Carte) certain PAMS documentation has been completed. No. 2 This item is used to track all Commercial Grade Pending Submittal of Revision 3 of NNC 2/2/11:

(a) The draft ISG6 states that a commercial grade dedication plan Dedication issues. the Licensing Technical Report due Commercial grade should be provided with an application for a Tier 2 review. 3/29/11. dedication will be

a. WNA-LI-00058-WT-P, Revision 2, Post-Accident addressed at the next By letter dated February 5, 2010, TVA stated that the commercial Monitoring System (PAMS) Licensing Technical Report Revised response included in letter audit.

grade dedication plan was included in the Common Q Topical submitted in TVA Letter to NRC dated December 3, dated 12/22/10 Report Section 11, Commercial Grade Dedication Program. 2010, (Reference 1) contains the following changes to NNC 2/17/11: The Section 11 includes a description of the Common Q Commercial address the NRC request: TVA agreed to include a description description of the Grade Dedication Program, and states: A detailed review plan is of the generic Westinghouse commercial grade developed for each Common Q hardware or software component Section 7, Commercial Grade Dedication Process has hardware commercial grade dedication process in that requires commercial grade dedication. been revised to describe the general commercial grade dedication process in the PAMS the CQ PAMS LTR dedication process for both hardware and software and licensing technical report. (see Rev. 2 should be Please provide the commercial grade dedication plans for each uses a description of the AI687 dedication process as ML102920031 Item No 1) updated to include a Common Q hardware or software component that has not been an example of how the process is applied. non-proprietary previously reviewed and approved by the NRC. TVA agreed to include (in the PAMS description and to As listed in Table 6-3. Westinghouse Watts Bar 2 licensing technical report) an include a software (b) The draft ISG6 states that a commercial grade dedication report Common Q PAMS Documents at Westinghouse evaluation of WBN2 critical example.

should be provided within 12 months of requested approval for a Rockville Office, the following commercial grade characteristics for commercial Tier 2 review. dedication documents are available for NRC audit at the Westinghouse hardware

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N Westinghouse Rockville office: (list included in letter) components against the generic (i) Please provide 00000-ICE-37722 Rev. 0, Commercial Grade critical characteristics. (see Dedication Report for the QNX Operating System for Common Q b. It is TVAs understanding that the submittal of the ML102920031 Item No 2)

Applications. documents listed in (b.i) and (b.ii) is no longer required.

Rather, it was agreed, that the inclusion of a description TVA agreed to include a description (ii) Please provide WNA-CD-00018-GEN Rev. 3, Commercial of the commercial grade dedication process in revision of the generic Westinghouse Dedication Report for QNX 4.25G for Common Q Applications. 2 of the Post-Accident Monitoring System (PAMS) software commercial grade Licensing Technical Report, WNA-LI-00058-WT-P, dedication process in the PAMS would be sufficient to address this request. licensing technical report. (see ML102920031 Item No 3)

TVA Response to Follow-up NRC Request:

TVA agreed to include (in the PAMS The non-proprietary commercial grade dedication discussion licensing technical report) an is included in Attachment 3, WNA-LI-00058-WBT-NP, Post- evaluation of WBN2 critical Accident Monitoring System (PAMS) Licensing Technical characteristics for commercial Report, Revision 3 dated March 2011 (non-proprietary) software components against the Section 7. The software example is included in Attachment generic critical characteristics. (see 2, WNA-LI-00058-WBT-P, Post-Accident Monitoring System ML102920031 Item No 4)

(PAMS) Licensing Technical Report, Revision 3, dated March 2011 (proprietary) Section 7.

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139 The WBN2 PAMS System Requirements Specification (WBN2 Responder: WEC 135. Y Closed Closed ML101650255, Item TVA Letter dated WBN2 PAMS System Requirements 140 The first requirement in the WBN2 PAMS SysRS (i.e., R2.2-1) Responder: Clark 136. N Closed Closed ML101650255, Item TVA Letter dated WBN2 PAMS System Requirements C C C 141 Deleted by DORL Date: 137. Y Closed Closed ML101650255, Item WBN2 PAMS System Requirements 142 The applicable regulatory guidance for reviewing the WBN2 PAMS Responder: WEC 11. N Open Open-NRC Review ML101650255, Item WBN2 PAMS System Requirements EICB (Carte)

SysRS would be IEEE 830 as endorsed by Regulatory Guide 1.172 No. 6 Specification and BTP 7-14 Section B.3.3.1, Requirements Activities - Software This item is used to track all traceability issues with the Due 2/25/11 (document Requirements Specifications. IEEE 830-1994 Section 4.3.8, Software Requirements Specification (SRS). Revised response included in letter submittals) TVA docketed WNA-DS-01617-WBT Traceable, states: A [requirements specification] is traceable of dated 02/25/11 Rev. 1, RRAS Watts Bar 2 NSSS the origin of each of its requirements is clear NNC 2/2/11: Updated Completion Program I&C Projects Post Response included in letter dated Specifications and Accident Monitoring System- System

1. How did TVA ensure the traceability of each requirement in TVA Response to 1: 12/22/10 RTMs to be provided by Requirements Specification, dated the WBN2 PAMS SysRS. Traceability of requirements for the WBN Unit 2 Common Q TVA December 2009.

PAMS is ensured by: TVA/Westinghouse agreed to

a. Preparation of the TVA Contract Compliance Matrix include the V&V evaluation of their Tracability to be contained in WNA-LI-00058-WBT-P, Revision 2, Post- reusable software element addressed during the Accident Monitoring System (PAMS) Licensing development process in the V&V next audit.

Technical Report submitted in TVA Letter to NRC design phase summary report. This dated December 3, 2010 (Reference 1). evaluation would include an

b. Engineering review/comment/status of each revision evaluation against the development of: process requirements. This

i. WNA-DS-01617-WBT, Post Accident evaluation would also include an Monitoring System - System Requirements evaluation of how the WBN2 Specification specific requirements were ii. WNA-DS-01667-WBT, Post Accident addressed by the reusable software Monitoring System - System Design elements. (see ML102920031 Item Specification (hardware) No 5) iii. WNA-SD-00239-WBT, Software Requirements Specification for the Post Accident Monitoring System (software)

TVA Response to 2:

2. Explain the source(s) of the requirements present in the Post As documented in the RTM, some software requirements Accident Monitoring Systems Software Requirements are taken from generic documents. The decision to include Specification. To clarify, many documents have requirements generic software requirements was to reduce the overall that are incorporated by reference into the SRS, but what scope for Common Q features that are unchanged across served to direct the author to include those various projects. Westinghouse reviewed the generic PAMS documents in the SRS or, if the requirement is based on the requirements and included those requirements that were

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N System Requirements Specification, what directed the author applicable to WBN Unit 2 PAMS.

to include the requirement there?

Source: E-mail from Westinghouse (Matthew A.

Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)

3. Clarify whether the unnumbered paragraphs in the Post TVA Response to 3:

Accident Monitoring Systems Software Requirements Unnumbered paragraphs in the Post Accident Monitoring Specification, such as in the section headings, or are all such Systems Software Requirements Specification, such as in sections simply considered to be informative? the section headings, are informative and are not to be interpreted as requirements. All requirements are explicitly Does the same apply to documents referenced by the SRS? numbered.

Such as WCAP-16096-NP-A, Rev. 1A, Software Program Manual for Common Q Systems, which is incorporated by It depends on the document type. The statement would be reference in requirement R2.3-2 in the SRS. true for requirements documents (such as the SysRS or SDS) if they were incorporated by reference. However, for R2.3-2 [The PAMS software shall comply with the the specific item cited, WCAP-16096-NP-A, Rev. 1A, it does requirements and guidelines defined in WCAP-16096-NP-A, not contain numbered requirements. The requirements Software Program Manual for Common Q Systems contained in this document are contained within the text of (reference 5).] the various sections.

If any requirements are expressed in such unnumbered Source: E-mail from Westinghouse (Matthew A. Shakun) to paragraph form instead of individually identified requirements, Bechtel (Mark S. Clark), RE: December 22 letter review, please list them, describe why they satisfy the fundamental dated December 17, 2010 (Reference 13) requirement of unambiguity, and describe how they were verified.

4. Are there any sources of requirements in parallel with the TVA Response to 4:

Post Accident Monitoring Systems Software Requirements The Westinghouse SRS, WNA-SD-00239-WBT, Revision 3 Specification? Meaning does the SRS contain, explicitly or contains references to other Westinghouse software by reference, all the requirements that were used in the requirements documents. Specifically, design phase for the application specific software, or do software design phase activities use requirements found in 00000-ICE-3238, Revision 5, Software Requirements any other source or document? If so, what are these Specification Post Accident Monitoring System sources or documents?

00000-ICE-3239, Revision 13, Software Requirements Specification for the Common Q Generic Flat Panel Display Software Source: E-mail from Westinghouse (Matthew A. Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)

5. References 12, 27, 29, and 31-44 in the Post Accident TVA Response to 5:

Monitoring Systems Software Requirements Specification Requirements for the reusable software elements (RSEDs) are various types of Reusable Software Element. are evaluated in WNA-VR-00283-WBT-P, Revision 3, IV&V Summary Report for the Post Accident Monitoring System, These references are used in the body of the SRS, for dated December 2010 (Attachment 10).

example:

RSED traceability is contained in WNA-VR-00280-WBT, R5.3.14-2 [The Addressable Constants CRC error signal shall Revision 2, Watts Bar 2 NSSS Completion Program I&C be TRUE when any CAL CRC's respective ERROR terminal Projects Requirements Traceability Matrix for the Reactor

= TRUE (WNA-DS-00315-GEN, "Reusable Software Element Vessel Level Indication System (RVLIS) Custom PC Document CRC for Calibration Data" [Reference 12]).] Elements. This document can be made available for audit at the Westinghouse Rockville office.

They are also included via tables such as found in requirement R7.1.2-1 At the September 15 public meeting in Rockville, the following actions were agreed to. These items address the

[The Watts Bar 2 PAMS shall use the application-specific traceability concerns with the Software Requirements

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N type circuits and custom PC elements listed in Table 7.1-1.] Specification.

1. Westinghouse will perform a review of the Do the referenced reusable software element documents include Requirements Traceability Matrix(RTM), using the requirements not explicitly stated in the SRS? If so what is their issues identified at the 9/15 public meeting as a guide origin? (documented below) and update the RTM as required.

TVA Response:

See response to letter Item 13 (NRC Matrix Item 145).

2. The next issue of the IV&V report will include the Requirements phase review of the RTM and a partial review for the Design phase.

TVA Response:

See response to letter Item 13 (NRC Matrix Item 145).

3. Westinghouse will add a comments column in the Requirements Traceability Matrix (RTM) to address items not in the SRS or SysRS.

TVA Response:

A comments column has been added to WNA-VR-00279-WBT, Revision 3, Watts Bar 2 NSSS Completion Program I&C Projects Requirements Traceability Matrix for the Post Accident Monitoring System.

Source: E-mail from Westinghouse (Matthew A.

Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)

4. IEEE 830 says you shouldnt have planning information in the SRS. Westinghouse has agreed to remove this information.

TVA Response:

Westinghouse has confirmed that process requirements have been removed from the SRS.

Source: E-mail from Westinghouse (Andrew P. Drake) to Bechtel (Mark S. Clark), RE: Common Q RAI concerns, dated December 8, 2010 (Reference 17)

5. IEEE 830 says you shouldnt have process requirements in the SRS. Westinghouse has agreed to remove these requirements.

TVA Response:

Westinghouse confirmed that process requirements have been removed from the SRS.

Source: E-mail from Westinghouse (Andrew P. Drake) to Bechtel (Mark S. Clark), RE: Common Q RAI concerns, dated December 8, 2010 (Reference 17)

6. Westinghouse will perform and document an evaluation of the SRS to ensure compliance with Reg.

Guide 1.172 and justify any deviations.

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N TVA Response:

WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report submitted in TVA Letter to NRC dated December 3, 2010, (Reference 1):

Section 9, Compliance Evaluation Of The Watts Bar 2 PAMS Software Requirements Specification To IEEE Standard 830-1998 And Regulatory Guide 1.172 has been added.

7. 25 issues identified by V&V where some requirements have not been included in the System Design Specification (SDS) (14) and SRS (11) at the revisions reviewed by V&V. Have these been addressed?

TVA Response:

The twenty-five (25) issues are captured in Exception Reports (ERs): V&V-769 and V&V-770. These ERs have all been addressed and the ERs have been closed satisfactorily by Westinghouse IV&V.

Source: E-mail from Westinghouse (Matthew A.

Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)

8. Some hardware requirements are contained in the SRS instead of the System Design Specification (SDS). These will be removed from the SRS and incorporated into the next revision of the SDS.

TVA Response:

The hardware requirements in the Software Requirements Specification have been deleted and moved to System Design Specification.

Source: E-mail from Westinghouse (Matthew A.

Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 16, 2010 (Reference 15)

9. RTM item R4.2-2 protection class software set to 0.

Needs to be fixed internally. Write CAPs to revise the application restrictions document on AC160.

TVA Response:

Westinghouse CAPs IR# 10-259-M034 has been issued. This item will be addressed in revision 4 of the RTM.

Source: E-mail from Westinghouse (Matthew A.

Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)

10. Westinghouse to improve the traceability of the tests that are performed with the function enable (FE) switch in the ENABLE position.

TVA Response:

The tests that are performed with the FE keyswitch in

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N the ENABLE position are defined in the SRS Sections:

6.2 Manually Initiated Testing, 7.2.23 Annunciator Test Display, 7.2.25 Saturation Margin Test Display, and 7.2.26 Analog Output Test Display.

11. Westinghouse to revise documents to be consistent with referring to the FE switch in the ENABLE position.

TVA Response:

Westinghouse has elected to standardize on the terms FE keyswitch and ENABLE. A review of recent documents for compliance with this comment and commitment was performed with the following results:

a. Revision 3 of the SysRS, and SDS have been revised to use the terms FE keyswitch. Revision 3 of the SDS is consistent in use of the term ENABLE.

b. SysRS Revision 3 is not consistent in use of the term ENABLE as noted below:

i. R2.5.2.1-2 uses the term ENABLED instead of ENABLE ii. R2.5.2.1.3-3, R2.6.3.3-1, R2.6.3.3-2, R2.6.3.3-3, and R2.6.3.3-7, use the term Enable instead of ENABLE

c. Revision 3 of the SRS is not consistent in use of the terms FE keyswitch and ENABLE as noted below:

i. Tables 7.2-1 Train A PAMS Data Transmitted to the Plant Computer and 7.2-2 Train B PAMS Data Transmitted to the Plant Computer items 101 and 102 in the SRS refer to the FE switch.

All other items in the SRS refer to the FE keyswitch.

ii. Section 2.1, page 2-4, uses the term Enable instead of ENABLE iii. Requirements R7.2.14-6 and R7.2.16-7 use the term active instead of ENABLE iv. Requirements R7.2.23-2, R7.2.25-2, R7.2.26-2, R7.2.31-4, 7.2.56 FPDS Availability, and R7.2.57-4 use the term enabled instead of ENABLE

d. WNA-AR-00180-WBT-P, Revision 0, Failure Modes and Effects Analysis (FMEA) for the Post Accident Monitoring System, dated October 2010, submitted in TVA letter to NRC dated (Reference

12) is not consistent in use of the term FE keyswitch as noted below:

i. Section 2.2 System Description and Table 3-1 WB2 PAMS FMEA refer to the FE switch.

ii. Table 3-1 describes the switch as the Functional Enable (FE) switch and the FE key-switch

e. Revision 2 of the Licensing Technical Report is not consistent in use of the term FE keyswitch as noted below:

i. Sections 2.2, 5.3 use the term (FE) keylock switch on pages 2-3 (2 places), page 5-3, page 5-6 (4 places)

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N The identified discrepancies in the use of the terms FE keyswitch and ENABLE in the SysRS, SRS, FMEA and Licensing Technical Report, will be corrected in the next revision of the documents.

12. The flow of information is from the SysRS to the SDS (hardware) and SRS (software). Describe how the documents are used. Describe in 1.1 of the SysRS.

Need a good write up of how the process works.

TVA Response:

See response to letter item 13 (NRC Matrix Item 145).

13. Westinghouse and TVA will develop a revised schedule for document submittals and provide it to the NRC no later than 9/30/10 TVA Response:

The revised document submittal schedule was included as item 3 NRC Request (Matrix Item Number 142, TVA Commitments Nos. 10 and 17) in TVA letter to NRC dated October 26, 2010 (Reference 5).

14. TVA will update the Procurement Requisition Resolution Matrix and submit it to show how the Common Q PAMS design meets the contract requirements.

TVA Response:

The Procurement Requisition Resolution Matrix has been updated and is included in WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS)

Licensing Technical Report submitted in TVA Letter to NRC dated December 3, 2010, (Reference 1), as Section 11, TVA Contract Compliance Matrix.

15. Westinghouse to add the Software Design Descriptions to the RTM TVA Response:

The Software Design Description documents were added to the RTM in WNA-VR-00279-WBT, Rev 2.

Source: E-mail from Westinghouse (Matthew A.

Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)

16. Westinghouse to clarify how requirements or documents are incorporated by reference into the Common Q PAMS requirements.

TVA Response:

When a Common Q PAMS requirements document references a section of another document, all requirements in that section are applicable.

Source: E-mail from Westinghouse (Matthew A.

Shakun) to Bechtel (Mark S. Clark), RE: December 22

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N letter review, dated December 17, 2010 (Reference 13)

17. Westinghouse to review the use of shall outside of numbered paragraphs in requirements documents to ensure that all requirements are captured and clearly identified.

TVA Response:

See response in letter dated December 22, 2010, item 2 (NRC Matrix Item 050).

18. Westinghouse to resolve the following questions concerning Software Design Descriptions (SDDs)

a. Is the SDD a standalone document or will it incorporate the generic SDD by reference?

b. What are the SDDs?

c. PAMS is a delta document so how do we capture all the generic requirements for traceability.

TVA Response:

a. There are three SDDs prepared specifically for the Watts Bar 2 PAMS project. These are listed below in Item b. These documents and superior requirements documents refer to other generic SDDs also listed in Item b.

b. The SDDs developed for this project are:

i. WNA-SD-00248-WBT, Revision 1, Watts Bar 2 NSSS Completion Program I&C Projects Software Design Description for the Post Accident Monitoring System Flat Panel Display ii. WNA-SD-00250-WBT, Revision 1, Watts Bar 2 NSSS Completion Program I&C Projects Software Design Description for the Post Accident Monitoring System AC160 Software iii. WNA-SD-00277-WBT, Revision 2, Watts Bar 2 NSSS Completion Program I&C Projects Software Design Description for the Post Accident Monitoring System Flat Panel Display System Screen Design Details iv. Other generic SDDs referenced by the PAMS project are:

(a) 00000-ICE-20157, Revision 18, Software Design Description for the Common Q Generic Flat-Panel Software (b) 00000-ICE-30152, Revision 5, Software Design Description Post Accident Monitoring System AC160 (c) 00000-ICE-30140, Revision 4, Software Design Description for the

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N Common Q Core Protection Calculator System Database and Utility Functions

c. Refer to WNA-VR-00279-WBT, Revision 3.

Source: E-mail from Westinghouse (Matthew A.

Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)

19. For Reusable Software Elements, Westinghouse to describe as qualified libraries by following the SPM and qualified using the Software Elements Test procedure under Appendix B program. Provide a summary of RSEDs generic WCAP. Westinghouse to determine if the WCAP was docketed under the AP1000. RSED concept is not in the SPM. WCAP-15927 AP-1000 does not discuss RCEDs. WCAP process was acceptable. RSEDs are listed in the SDD References.

TVA Response:

Section 3.2.4.1 of WCAP-15927 describes the RSED design process for custom PC elements and type circuits. The Glossary of Terms in the SPM defines custom PC elements and type circuits as modules.

Therefore, the relationship between WCAP-15927 describing the RSED process as circuits, is defined in the SPM requirements for software module development.

WCAP-15927 is on the AP1000 docket.

Source: E-mail from Westinghouse (Matthew A.

Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)

TVA Response to Follow-up NRC Request:

WNA-VR-00279-WBT, Revision 4, Watts Bar 2 NSSS Completion Program I&C Projects Requirements Traceability Matrix for the Post Accident Monitoring System is scheduled to be available for audit at the Westinghouse Rockville office February 21, 2011. The document will be available at the Westinghouse Cranberry offices to support the NRC Common Q PAMS audit.

Attachment 9 contains the proprietary version of WNA-DS-01617-WBT-P, Revision 4, Post Accident Monitoring System - System Requirements Specification, dated February 2011. Attachment 10 contains the non-proprietary version WNA-DS-01617-WBT-NP, Revision 4, Post Accident Monitoring System - System Requirements Specification, dated February, 2011. Attachment 11 contains the Application for Withholding Proprietary Information from Public Disclosure, WNA-DS-01617-WBT-P, Revision 4, Nuclear Automation Watts Bar 2 NSSS Completion Program I&C Projects, Post Accident Monitoring System - System Requirements Specification (Proprietary),

dated February 10, 2011.

Attachment 12 contains the proprietary version of WNA-DS-

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N 01667-WBT-P, Revision 4, Post Accident Monitoring System - System Design Specification, dated February 2011. Attachment 13 contains the non-proprietary version WNA-DS-01667-WBT-NP, Revision 4, Post Accident Monitoring System - System Design Specification, dated February 2011. Attachment 14 contains the Application for Withholding Proprietary Information from Public Disclosure, WNA-DS-01667-WBT-P, Revision 4, Nuclear Automation Watts Bar 2 NSSS Completion Program I&C Projects Post Accident Monitoring System - System Design Specification (Proprietary), dated February 11, 2011.

Attachment 15 contains the proprietary version of WNA-SD-00239-WBT-P, Revision 4, Software Requirements Specification for the Post Accident Monitoring System, dated February 2011. Attachment 16 contains the non-proprietary version WNA-SD-00239-WBT-NP, Revision 4, Software Requirements Specification for the Post Accident Monitoring System, dated February 2011. Attachment 17 contains the Application for Withholding Proprietary Information from Public Disclosure, WNA-SD-00239-WBT-P, Revision 4, Nuclear Automation Watts Bar 2 NSSS Completion Program I&C Projects, Software Requirements Specification for the Post Accident Monitoring System (Proprietary), dated February 10, 2011.

143 The WBN2 PAMS Software Requirements Specification (WBN2 Responder: WEC 12. N Open Open-NRC Review ML101650255, Item WBN2 PAMS System Requirements EICB (Carte)

PAMS SRS - ML101050202) contains a table (see page iii) titled, No. 7 Specification Document Traceability & Compliance, which states that the Addressed in the 9/15 public meeting and 9/20 - 9/21 audit. Response included in letter dated Due 2/25/11 (document WBN2 PAMS SRS was created to support the three documents A detailed explanation will be provided. 12/22/10 submittals) TVA docketed WNA-DS-01617-WBT identified (one of which is the WBN2 PAMS SysRS). Section 1.1, Rev. 1, RRAS Watts Bar 2 NSSS Overview, of the WBN2 PAMS SRS states: This document TVA Response: To be addressed by Completion Program I&C Projects Post describes requirements for the major software components Revision of the RTM, Accident Monitoring System- System (a) and (b) The requested information is provided in the SRS, SysRS, and Requirements Specification, dated (a) Please list and describe each of the major software following documents: SysDS. December 2009.

components. Please include a description of any NRC review for i. WNA-LI-00058-WBT-P, Revision 2, Post-each of these components. Accident Monitoring System (PAMS) Licensing NNC 2/2/11: Updated Technical Report, Table 6-1, Document Specifications and (b) Please list and describe each of the other software Requirements which lists the software RTMs to be provided by components. Please include a description of any NRC review for documentation requirements for the Common Q TVA each of these components. PAMS and Section 11 TVA Contract Compliance Matrix submitted in TVA Letter to NNC 2/3/11: The (c) What other documents contain the requirements for the other NRC, dated December 3, 2010 (Reference 1). above due date has software components? ii. WNA-DS-01617-WBT-P, Revision 3, Post been missed by at Accident Monitoring System- System least 2 months.

The WBN2 PAMS System Design Specification (WBN2 PAMS Requirements Specification, dated December Please provide new SDS) contains a table (see page iii) titled, Document Traceability 2010 (Attachment 1) due date.

& Compliance, which states that the WBN2 PAMS SysRS was iii. WNA-SD-00239-WBT-P, Revision 3, Software created to support the WBN2 PAMS SysRS. Section 1.1, Requirements Specification for the Post Accident Purpose, of the WBN2 PAMS SDS states: The purpose of this Monitoring System, dated December 2010 document is to define the hardware design requirements (Attachment 7) iv. WNA-VR-00279-WBT, Revision 3, Watts Bar 2 (c) Do the WBN2 PAMS SRS and SDS, together, implement all of NSSS Completion Program I&C Projects the requirements in the WBN2 PAMS SysRS? Requirements Traceability Matrix for the Post Accident Monitoring System (available for NRC (e) Please briefly describe all of the documents that implement audit at the Westinghouse Rockville office) the WBN2 PAMS SysRS. To the best of TVAs knowledge, no prior NRC review of the software components has been performed.

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N (c) WNA-VR-00280-WBT, Revision 2, Watts Bar 2 NSSS Completion Program I&C Projects Requirements Traceability Matrix for the Reactor Vessel Level Indication System (RVLIS) Custom PC Elements (available for NRC audit at the Westinghouse Rockville office)

(d) No. Please see Item (e) below.

(e) The documents that describe the requirements that implement the WBN Unit 2 SysRS are:

i. WNA-VR-00279-WBT, Revision 3, Watts Bar 2 NSSS Completion Program I&C Projects Requirements Traceability Matrix for the Post Accident Monitoring System (available for NRC audit at the Westinghouse Rockville office) ii. WNA-VR-00280-WBT, Revision 2, Watts Bar 2 NSSS Completion Program I&C Projects Requirements Traceability Matrix for the Reactor Vessel Level Indication System (RVLIS) Custom PC Elements (available for NRC audit at the Westinghouse Rockville office)

Source: E-mail from Westinghouse (Matthew A. Shakun) to Bechtel (Mark S. Clark), RE: December 22 letter review, dated December 17, 2010 (Reference 13)

TVA Response to Follow-up NRC Request:

See Response to item 3 (Item number 142) 144 The WBN2 PAMS Software Requirements Specification (WBN2 Responder: WEC 13. N Open Open-NRC Review ML101650255, Item TVA Letter dated WBN2 PAMS Software Requirements EICB (Carte)

PAMS SRS) contains a table (see page iii) titled, Document No. 8 10/5/10 Specification Traceability & Compliance, which states that the WBN2 PAMS (a) The purpose of NABU-DP-00014-GEN document is to Pending Submittal of Revision 3 of Due 3/29/11 SRS was created to support the three documents identified (two ofdefine the process for system level design, software design the Licensing Technical Report due By letter dated April 8, 2010 these documents have been provided on the docket). and implementation, and hardware design and 3/29/11. Responses to items a (ML10101050203), TVA docketed implementation for Common Q safety system development. and e provided. WNA-SD-00239-WBT, Revision 1, (a) Please describe the third document (i.e., NABU-DP-00014-GEN This document supplements the Common Q SPM, WCAP- "RRAS Watts Bar 2 NSSS Completion Revision 2, Design Process for Common Q Safety Systems). 16096-NP-A. The scope of NABU-DP-00014-GEN includes Revised response included in letter NNC 11/18/10: Program I&C Projects, Software the design and implementation processes for the application dated 12/22/10 (1) Items b-d closed to Requirements Specification for the Post (b) Please describe the flow of information between these three development. For a fuller description of the design process other Open Item nos. Accident Monitoring System, dated documents. described in NABU-DP-00014-GEN please refer to the Response provided in letter dated (2) The point of these February 2010 (ML101050202).

Design Process for AP1000 Common Q Safety Systems, 10/5/10 questions was to (c) Does the PAMS SRS implement the requirements in these WCAP-15927 on the AP1000 docket. Since this is a understand how the three documents? Westinghouse process document that is not specifically NRC Review and WEC to complete origin of the referenced in the SRS, it will be removed in the next revision response. requirements in the (d) Please describe if and how these three documents are used in of the document. requirements the development of the PAMS Software Design Description. b-d to be addressed at public specifications were (b) - Closed to items 142 and 145 meeting and audit. Will require documented. TVA (e) Do the WBN2 V&V activities include verification that the information to be docketed. stated that the origin of requirements of these three documents have been incorporated (c) - Closed 142 the requirements would into the WBN2 PAMS SRS. be demonstrated in (d) - Closed to Item 142 Rev. 2 of the CQ PAMS LTR.

(e) WBN2 PAMS Software Requirements Specification (WNA-SD-00239-WBT, Rev. 1) refers to Document NNC 2/3/11: CQ Traceability & Compliance table on page iii. This table has PAMS LTR Rev. 2 three entries; Design Process for Common Q Safety Section 11 & 12 do not Systems (NABU-DP-00014-GEN, Rev. 2), RRAS Watts Bar adequately

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N 2 NSSS Completion Program I&C Projects Post Accident demonstrate the origin Monitoring System - System Requirements Specification of requirements in (WNA-DS-01617-WBT, Rev. 1), and RRAS Watts Bar 2 SysRS. TVA to NSSS Completion Program I&C Projects Post Accident describe how to Monitoring System - System Design Specification (WNA- address concern.

DS-01667-WBT, Rev. 1).

IV&V performed a Requirements Traceability Assessment during which it reviewed Software Requirements Specification (WBN2 PAMS SRS, WNA-SD-00239-WBT, Rev. 1) against System Requirements Specification (WNA-DS-01617-WBT, Rev. 1) and System Design Specification (WNA-DS-01667-WBT, Rev. 1). Requirements within Software Requirements Specification that are referring to NABU-DP-00014-GEN, Rev 2, Design Process for Common Q Safety Systems, have also been reviewed for traceability and compliance. During IV&V's RTA effort the anomaly reports V&V-769 and V&V- 770 have been initiated and reported in the IV&V Phase Summary Report for the System Definition Phase, WNA-VR-00283-WBT, Rev. 0.

IV&V has verified that the requirements in SRS are derived from the specified documents listed in the Document Traceability and Compliance Table of WBN2 PAMS SRS.

TVA Response to Follow-up NRC Request:

(1) Item (a) in the original list, NABU-DP-00014-GEN Revision 2, Design Process for Common Q Safety Systems, is available for NRC audit at the Westinghouse Rockville office.

(2) WNA-LI-00058-WT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report submitted in TVA Letter to NRC dated December 3, 2010, (Reference 1) contains the following change to address the NRC request:

Section 11, TVA Contract Compliance Matrix showing the origin of the requirements was added.

TVA Response to Second Follow-up NRC Request:

Section 13, Origin Tracing of WBN2 PAMS System Requirements Specification was added to the Licensing Technical Report Revision 3 to address this concern.

Attachment 2 contains WNA-LI-00058-WBT-P, Post-Accident Monitoring System (PAMS) Licensing Technical Report, Revision 3, dated March 2011 (proprietary).

145 The WBN2 PAMS System Design Specification (WBN2 PAMS Responder: WEC 14. N Open Open-NRC Review ML101650255, Item WBN2 PAMS System Design EICB (Carte)

SDS) contains a table (see page iii) titled, Document Traceability No. 9 Specification

& Compliance, which states that the WBN2 PAMS SDS was (1) The review and update of the RTM is complete. The Response included in letter dated Due 2/25/11 created to support the WBN2 PAMS SysRS. revised RTM can be made available for NRC audit at 12/22/10 TVA docketed WNA-DS-01667-WBT the Westinghouse office in Rockville. To be addressed by Rev. 1, RRAS Watts Bar 2 NSSS (a) Does the WBN2 PAMS SDS implement all of the hardware During the September 20-21, 2010 Revision of the RTM, Completion Program I&C Projects Post requirements in the WBN2 PAMS SysRS? (2) Please see letter Item 10 (NRC Matrix Item 142, sub audit at Westinghouse, it was SRS, SysRS, and Accident Monitoring System- System item 13). acknowledged that SysDS. Design Specification, dated December (b) Please briefly describe all of the documents that implement the TVA/Westinghouse had previously 2009.

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N hardware requirements of the WBN2 PAMS SysRS. (3) Please see letter Item 10 (NRC Matrix Item 142, sub (in September 15, 2010 public item 12). meeting) stated:

This item is used to track all traceability issues with the System Design Specification (SDS). (4) Section 11 TVA Contract Compliance Matrix was TVA would provide the RSED RTM.

added to WNA-LI-00058-WBT-P, Revision 2, Post- (see ML102920031 Item No 6)

At the September 15 public meeting in Rockville, the following Accident Monitoring System (PAMS) Licensing actions were agreed to. These items partially address the Technical Report submitted in TVA Letter to NRC TVA would revise and resubmit the traceability concerns with the System Design Specification. dated December 3, 2010, (Reference 1). PAMS RTM to address all types of This item will be updated with the results of the September 20 issues identified in the public and 21 Commercial Grade Dedication and SDS RTM audit. (5) WNA-VR-00283-WBT, Revision 1, IV&V Summary meeting. (see ML102920031 Item Report for the Post Accident Monitoring System, No 7)

1. Westinghouse will perform completed a review of the submitted in TVA to NRC letter dated December 3, Requirements Traceability Matrix(RT), using the issues 2010 (Reference 1) includes the Requirements and TVA would revise and resubmit the identified at the 9/15 public meeting as a guide (documented Design phase reviews. Software Verification and Validation below) and update the RTM as required. phase summary report for the (6) Per Westinghouse letter WBT-D-2268 NRC Access to requirements phase to document

2. Some hardware requirements are contained in the SRS Common Q Documents at the Westinghouse Rockville the completion of the requirements instead of the System Design Specification (SDS). These will Office dated August 16, 2010 (Reference 9) System phase review. (see ML102920031 be removed from the SRS and incorporated into the next Requirements Specification for the Common Q Generic Item No 8) revision of the SDS. Flat Panel Display, 00000-ICE-30155, Revision 9 is available for audit at the Westinghouse Rockville office.

3. 25 issues identified by V&V where some requirements have not been included in the SDS (14) and SRS (11) at the The generic AC160 specifications are contained in the revisions reviewed by V&V. Have these been addressed? documents listed below. The documents are available Yes. The next revisions of the SDS and SRS address these for NRC audit at the Westinghouse Rockville office in issues. accordance with the letter number referenced. List is contained in letter.

4. TVA will update the Procurement Requisition Resolution Matrix and submit it to show how the Common Q PAMS (7) A schedule was developed and is reviewed weekly by design meets the contract requirements. Westinghouse and TVA project management.

5. The next issue of the IV&V report will include the (8) The revised document submittal schedule was Requirements phase review of the RTM and a partial review included as item 3 NRC Request (Matrix Item Number for the Design phase. 142, TVA Commitments Nos. 10 and 17) in TVA letter to NRC dated October 26, 2010.

6. Westinghouse to provide the generic AC160 and flat panel specifications. (9) The flow of documentation information was provided to the NRC inspector during the Common Q PAMS audit.

7. Westinghouse and TVA to develop a schedule of licensing document submittals that can be met by the project team. Source: E-mail from Westinghouse (Andrew P. Drake) to Bechtel (Mark S. Clark), RE: RAI on SysRS, dated

8. The flow of information is from the SysRS to the SDS December 8, 2010 (hardware) and SRS (software). Describe how the documents are used. Describe in 1.1 of the SysRS. Need a TVA Response to Follow-up NRC Request:

good write up of how the process works.

See Response to item 3 (Item number 142)

( ( (

146 6/17/2010 Responder: 138. Y Closed Closed ML101650255, Item PAMS System Requirements 147 6/17/2010 Responder: 139. Y Closed Closed ML101650255, Item PAMS System Requirements

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148 6/17/2010 Responder: 140. Y Closed Closed ML101650255, Item PAMS System Requirements 149 7.2 7.2 FSAR Section 7.1.1.2(2), Overtemperature delta T and Responder: Tindell 141. Y Close Closed ML101720589, Item TVA Letter dated C C C 150 7.2 7.2 Many of the changes were based on the Westinghouse document Responder: Clark 142. Y Close Closed ML101720589, Item TVA Letter dated 151 7.2 7.2 Provide the EDCR 52378 and 54504 which discusses the basis for Responder: Clark 143. Y Close Closed ML101720589, Item TVA Letter dated G G G G G G 152 7.2 7.2 Deleted portion of FSAR section 7.2.3.3.4 and moved to FSAR Responder: Merten/Clark 144. Y Close Closed ML101720589, Item TVA Letter dated 153 7.2 7.2 FSAR section 7.2.1.1.7 added the reference to FSAR section Responder: Craig/Webb 145. Y Close Closed ML101720589, Item TVA Letter dated 154 7.2 7.2 FSAR section 7.2.1.1.10, setpoints: NRC staff has issued RIS Responder: Craig/Webb 146. Y Closed Closed ML101720589, Item TVA Letter dated EICB RAI ML102861885 sent to DORL

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N

( ( ( ( ( ( ( ( (

155 7.2 7.2 Summary of FSAR change document section 7.2 states that Date: 147. Y Closed Closed ML101720589, Item 156 7.2 7.2 FSAR section 7.2.2.1.1 states that dashed lines in Figure 15.1- Responder: WEC 148. Y Closed Closed ML101720589, Item TVA Letter dated Response on hold pending 157 7.2 7.2 FSAR section 7.2.2.1.1, fifth paragraph was deleted except for the Responder: Tindell 149. Y Close Closed ML101720589, Item TVA Letter dated 158 7.2 7.2 FSAR section 7.2.2.1.1, paragraph six was changed to state that Responder: Tindell 150. Y Closed Closed ML101720589, Item TVA Letter dated 159 7.2 7.2 FSAR section 7.2.2.1.2 discusses reactor coolant flow Responder: Craig 151. Y Close Closed ML101720589, Item TVA Letter dated G G G G G G G G G 160 7.2 7.2 FSAR section 7.2.2.2(7) deleted text which has references 12 and Responder: Tindell 152. Y Close Closed ML101720589, Item TVA Letter dated 161 7.2 7.2 FSAR section 7.2.2.3 states that changes to the control function Responder: Clark 153. Y Closed Closed ML101720589, Item TVA Letter dated 162 7.2 7.2 FSAR section 7.2.2.2(14) states that bypass of a protection Responder: Tindell 154. Y Closed Closed ML101720589, Item TVA Letter dated 163 7.2 7.2 Deleted by DORL Date: 155. Y Closed Closed ML101720589, Item 164 7.2 7.2 FSAR section 7.2.2.2(20) has been revised to include the plant Responder: Perkins 156. Y Closed Closed ML101720589, Item TVA Letter dated Item No. 8 sent to DORL a

165 7.2 7.2 FSAR section 7.2.2.3.2, last paragraph of this section has been Responder: Clark 157. Y Closed Closed ML101720589, Item TVA Letter dated 166 7.2 7.2 Changes to FSAR section 7.2.2.2(20) are justified based on the Responder: Clark 158. Y Closed Closed ML101720589, Item TVA Letter dated

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167 7.2 7.2 FSAR section 7.2.2.4, provide an analysis or reference to chapter Responder: Clark 159. Y Close Closed ML101720589, Item TVA Letter dated 168 7.2 7.2 FSAR table 7.2-4, item 9 deleted loss of offsite power to station Responder: Clark 160. Y Close Closed ML101720589, Item TVA Letter dated

( ( ( ( r 169 6/18/2010 Responder: Clark 161. Y Closed Closed 170 6/17/2010 Responder: Clark 162. Y Closed Closed M M ( ( ( ( ( ( ( ( ( ( ( (

171 7.2 7.2 6/17/2010 Responder: Craig 163. Y Closed Closed EICB RAI TVA Letter dated Closed to SE Open Item 172 6/17/2010 Responder: Craig 164. Y Closed Closed EICB RAI 173 7.1 7.1 6/17/2010 Responder: Craig/Webb/Powers 165. Y Closed Closed EICB RAI C C C C g 174 6/28/2010 Responder: Hilmes/Craig 166. Y Closed Closed EICB RAI 175 June 28, 2010 Responder: 167. Y Closed Closed EICB RAI a a G G G G G G G G G G G G 176 7.1 7.1 6/28/2010 Responder: Craig/Webb 168. Y Closed Closed EICB RAI 177 7.5.2. 7.5.1 7/15/2010 Responder: Clark 169. Y Closed Closed N/A TVA Letter dated RAI not required l

178 7.5.2. 7.5.1 7/15/2010 Responder: Clark 170. Y Closed Closed N/A TVA Letter dated RAI not required 179 An emphasis is placed on traceability in System Requirements Responder: WEC 171. Y Closed Closed N/A - Closed to NA 180 The SRP, BTP 7-14, Section B.3.3.1 states that Regulatory Guide Responder: WEC 172. Y Closed Closed N/A - Closed to NA 181 An emphasis is placed on traceability in System Requirements Responder: WEC 173. Y Closed Closed N/A - Closed to NA 182 Characteristics that the SRP states that a Software Requirements Responder: WEC 174. Y Closed Closed N/A - Closed to NA 183 7/15/2010 Responder: WEC 15. Y Open Open-NRC Review EICB RAI TVA Letter dated EICB (Carte)

ML102980066 Item 10/21/10 An emphasis is placed on traceability in System Requirements The generic Software Requirements Specification applies Pending Submittal of Revision 3 of Due 3/29/11 No. 9 Enclosure 1 Item Specifications in the SRP, in the unmodified IEEE std 830-1993, except as modified by the WBN Unit 2 System Requirements the Licensing Technical Report due No. 4 and even more so given the modifications to the standard listed in Specification. 3/29/11. NNC 11/18/10: The Regulatory Guide 1.172, which breaks with typical NRC use of the point behind this open word should to say Each identifiable requirement in an SRS must TVA Response to Follow-up NRC Request: item was that TVA must be traceable backwards to the system requirements and the design Revised response included in letter demonstrate that the bases or regulatory requirements that is satisfies Please see the response to RAI item 12 in letter dated dated 12/22/10. origin of each 12/22/10, NRC Matrix Item 144. requirement in the On page 1-2 of the Post Accident Monitoring Systems Software WEC requirements Requirements Specification in the background section, is the TVA Response to Second Follow-up NRC Request: Response provided in letter dated specification is known sentence Those sections of the above references that require 10/21/10 and documented. TVA modification from the generic PAMS are defined in the document This item was addressed by updating the Contract stated that this referring purely to the changes from WNA-DS-01617-WBT Post Compliance Matrix and adding Section 13, Origin Tracing of information would be in Accident Monitoring System-System Requirements Specification WBN2 PAMS System Requirements Specification to the CQ PAMS LTR Rev. 2.

or is it saying that there are additional changes beyond those and Licensing Technical Report Revision 3 to address this that the SRS defines them? concern. Attachment 2 contains WNA-LI-00058-WBT-P, NNC 2/3/11: CQ PMS Post-Accident Monitoring System (PAMS) Licensing LTR Rev. 2 Sections 11 If there are additional changes, what is their origin? Technical Report, Revision 3, dated March 2011 & 12 do not prove this

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N (proprietary). information. TVA to proive a plan to address requested information.

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184 C 7/15/2010 Responder: WEC 175. Y Closed Closed N/A - Closed to N/A 185 7/15/2010 Responder: WEC 16. N Open Open-NRC Review EICB RAI EICB (Carte)

ML102980066 Item An emphasis is placed on the traceability of requirements in Steve Clark to look at how to combine traceability items. Response included in letter dated NNC 11/18/10: (1)The No. 17 Software Requirements Specifications in the SRP, in the 12/22/10. point behind this open unmodified IEEE std 830-1993, and even more so given the Was addressed to during the 9/15 meeting and 9/20 - 9/21 item was that TVA must modifications to the standard listed in Regulatory Guide 1.172, audit. demonstrate that the which breaks with typical NRC use of the word should to say origin of each Each identifiable requirement in an SRS must be traceable TVA Response to Follow-up NRC Request: requirement in the backwards to the system requirements and the design bases or (1) See NRC Matrix Item 144 WEC requirements regulatory requirements that is satisfies Also the NRC considers (2) There is no RTM for development of the individual specification is known that the SRS is the complete set of requirements used for the reusable software elements. As listed in item 15 of and documented. TVA design of the software, whether it is contained within one document Table 6-1 Document Requirements of WNA-LI-00058- stated that this or many. In order to evaluate an SRS against the guidance in the WT-P, Revision 2, Post-Accident Monitoring System information would be in SRP the staff needs access to all the requirements. (PAMS) Licensing Technical Report submitted in TVA CQ PAMS LTR Rev. 2.

Letter to NRC, dated December 3, 2010, a RTM for (2) TVA also said it References 12, 27, 29, and 31-44 in the Post Accident Monitoring implementation of the RSEDs (WNA-VR-00280-WBT) would provide a RTM Systems Software Requirements Specification are various types of for the WBN Unit 2 Common Q PAMS has been for the RSED Reusable Software Element. developed. This document is available for NRC audit at the Westinghouse Rockville office. NNC 2/3/11: To be These references are used in the body of the SRS, for example: addressed during next audit.

R5.3.14-2 [The Addressable Constants CRC error signal shall be TRUE when any CAL CRC's respective ERROR terminal = TRUE (WNA-DS-00315-GEN, "Reusable Software Element Document CRC for Calibration Data" [Reference 12]).]

They are also included via tables such as found in requirement R7.1.2-1

[The Watts Bar 2 PAMS shall use the application-specific type circuits and custom PC elements listed in Table 7.1-1.]

Do the referenced reusable software element documents include requirements not explicitly stated in the SRS? If so what is their origin?

186 7.7.8 7.7.1.12 ( 7/15/2010 Responder: Perkins/Clark 176. Y Closed Closed EICB RAI No.6 TVA Letter dated 187 ( ( D By letter dated June 18, 2010, TVA docketed responses to NRC Responder: Merten 177. N Closed Closed ML101970033, Item TVA Letter dated Are these connections already C C a 188 By letter dated June 30, 2010, TVA docketed, Tennessee Valley Responder: Clark 178. Y Closed Closed ML101970033, Item TVA Letter dated

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189 7.6.7 7/20/2010 Responder: Clark 179. Y Closed Closed RAI No. 3 TVA Letter dated S

i

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190 7.9 FSAR Table 7.1-1 states: Regulatory Guide 1.133, May 1981 Responder: Clark 180. Y Closed Closed RAI No. 4 TVA Letter dated Closed to OI-331.

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191 7.9 NUREG-0800 Chapter 7, Section 7.9, "Data Communication Responder: Jimmie Perkins 181. Y Closed Closed ML10197016, Item TVA Letter dated M M M M M 192 7.5.1. 7.5.2 The NRC Staff is using SRP (NUREG-0800) Chapter 7 Section Responder: Clark 182. Y Closed Closed Item No. 1 sent to TVA Letter dated EICB RAI ML1028618855 sent to C S 193 7.5.1. 7.5.2 The WBU2 FSAR, Section 7.5.2, Plant Computer System, Responder: Clark 183. Y Closed Closed Item No. 2 sent to TVA Letter dated EICB RAI ML1028618855 sent to a a a a a 194 7.5.1. 7.5.2.1 The WBU2 FSAR Section 7.5.2.1, Safety Parameter Display Responder: Costley/Norman 184. Y Closed Closed Item No. 3 sent to TVA Letter dated EICB RAI ML1028618855 sent to i

195 7.5.1. 7.5.2.2 Bypassed and Inoperable Status Indication (BISI) Responder: Costley/Norman 185. Y Closed Closed Item No. 4 sent to TVA Letter dated EICB RAI ML1028618855 sent to 196 7.5.1. 7.5.2.2 Bypassed and Inoperable Status Indication (BISI) Responder: Costley/Norman 186. Y Closed Closed Item No. 5 sent to TVA Letter dated EICB RAI ML1028618855 sent to 197 ( Open Item 197 was never issued. 187. Y Closed Closed M X a 188. Y 198 7.5.1. 7.5.2.2 SRP Section 7.5, Subsection III, Review Procedures states: Responder: Costley/Norman Closed Closed Item No. 6 sent to TVA Letter dated EICB RAI ML1028618855 sent to

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N

(

199 7.5.1. 7.5.2.3 The WBU2 FSAR Section 7.5.2.3, Technical Support Center and Responder: Costley/Norman 189. Y Closed Closed Item No. 7 sent to TVA Letter dated Related SE Section 7.5.5.3 EICB RAI M

a 200 7.2 7/21/2010 Responder: Clark 190. Y Closed Closed EICB RAI TVA Letter dated

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201 7.7.1. 7.7.11 C 7/21/2010 Responder: Webb 191. Y Closed Closed EICB RAI TVA Letter dated 202 7.5.2 7/22/2010 Responder: WEC 17. N Open Open-NRC Review EICB RAI TVA Letter dated NNC 1/5/11: See Also Open Item No.

EICB (Carte)

ML102980066 Item 10/5/10 81 and 86.

The letter (ML0003740165) which transmitted the Safety Revision 1 of the Licensing Technical Report will provide Pending Submittal of Revision 3 of Due 2/25/11 & No. 4 Evaluation for the Common Q topical report to Westinghouse more detailed information on the changes to the platform. the Licensing Technical Report due 3/29/11 stated: "Should our criteria or regulations change so that our 3/29/11.

conclusions as to the acceptability of the report are invalidated, CE to provide information Nuclear Power and/or the applicant referencing the topical report Rev. 2 of the Licensing Technical Report will include the Response included in letter dated requested.

will be expected to revise and resubmit their respective applicability of guidance. 12/22/10 documentation, or submit justification for continued applicability of Due TBD the topical report without revision of the respective documentation." TVA Response to Follow-up NRC Request: Partial Response provided in letter Question No 81 identified many criteria changes; please revise the WNA-LI-00058-WBT-P, Revision 2, Post-Accident dated 10/5/10 respective documentation or submit justification for continued Monitoring System (PAMS) Licensing Technical Report applicability of the topical report. (LTR) submitted in TVA Letter to NRC dated December 3, NNC 1/5/11: Summary provided in 2010, contains the following change to address the NRC Licensing Technical Report R2 has request: been reviewed and found to be unacceptable.

Section 9, Compliance Evaluation of the Watts Bar 2 PAMS Software Requirements Specification to IEEE Standard 830- LTR Section 9 evaluates the 1998 and Regulatory Guide 1.172 to show the origin of the compliance of the SRS to IEEE requirements has been added. 830-1998. There are two issues with this evaluation:

The descriptions and commitments in the Topical Report (1) IEEE 830-1998 is not the current (TR) still apply. The LTR provides compliance evidence to SRP acceptance criteria. IEEE the new ISG-04 criteria. The statement in the SE means that 830-1998 has not been formally the TR can be evaluated against later NRC criteria when it endorsed by a regulatory guide.

appears. (2) Westinghouse committed to evaluate the SRS against 830 when Source: E-mail from Westinghouse (Matthew A. Shakun) to the NRC identified several Bechtel (Mark S. Clark), RE: December 22 letter review, inconsistencies.

dated December 17, 2010 Yes ISG-4 is one new criteria, and Partial TVA Response to Follow-up NRC Request: an evaluation against it has been provided.

Attachment 4 contains the results of the TVA analysis of standards and regulatory guides applicable to the Common In addition, LTR Rev. 2 Section 13 Q PAMS. Based on the results of the analysis, the Common states: The applicable NRC Q PAMS design is acceptable. regulatory guides, IEEE and EPRI industry standards fo the common The final response is pending submittal of the Licensing Q PAMS are shown below.

Technical Report Revision 3 scheduled for March 29, 2011. Compliance to these codes and standards are stated in Section 4 of TVA Response to Follow-up NRC Request: Reference 1. Reference 1 is the common Q topical report.

(1) As discussed on page 9-1 of the Licensing Technical Report (Attachment 2) a comparison of IEEE 830-1993 and IEEE 830-1998 was performed and it was determined that the 1998 version enveloped all the requirements of the 1993 version which is endorsed by Regulatory Guide 1.172. Therefore the use of IEEE 830-1998 is acceptable.

(2) Table 9.1 IEEE Std 830-1998 Compliance of the Licensing Technical Report (Attachment 2) evaluates the Software Requirements Specification against the

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N requirements of IEEE 830-1998.

(3) See TVA to NRC letter Watts Bar Nuclear Plant (WBN)

Unit 2 - Instrumentation And Controls Staff Information Requests, dated February 25, 2011 Attachment 4 Common Q PAMS Regulatory Guide and IEEE Standard Analysis.

(4) This section of the Licensing Technical Report (Attachment 2) has been relocated to section 15. The comment has been addressed by adding Reference 40 to TVA to NRC letter dated February 25, 2011, Attachment 4 which is the Common Q PAMS Regulatory Guide and IEEE Standard Analysis.

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203 7.5.1. 7.5.2 7/26/2010 Responder: Clark 192. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 204 7.5.1. 7.5.2 7/26/2010 Responder: Costley/Norman 193. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL

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205 7/26/2010 Responder: Clark 194. Y Closed Closed EICB RAI TVA Letter dated Question B related to prior NRC M M M M ( M M 206 7.5.1. 7.5.2 7/27/2010 Responder: Clark 195. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 207 July 27, 2010 Date: 196. Y Closed Closed C C 208 7.5.2. 7.5.1 7/27/2010 Responder: Clark 197. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL a a a a G a a 209 7.5.2. 7.5.1 7/27/2010 Responder: Clark 198. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 210 7.5.2. 7.5.1 7/27/2010 Responder: Clark 199. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 211 7.5.1. 7/27/2010 Responder: Clark 200. Y Closed Closed EICB RAI TVA Letter dated Relates to SE Sections:

212 7.5.2 7/27/2010 Responder: WEC 18. N Open Open-NRC Review EICB RAI EICB (Carte)

ML102980066 Item By letter dated June 18, 2010 (ML101940236) TVA stated Application specific requirements for testing. This cannot be Partial Response included in letter No. 10 (Enclosure 1, Attachment 3, Item No. 3) that the PAMS system addressed in a topical report. Evaluation of how the dated 03/16/11 design specification and software requirements specification hardware meets the regulatory requirements.

contain information to address the "Design Report on Computer Final response due 3/29/11 Integrity, Test and Calibration..." The staff has reviewed these WEC to provide the information and determine where the documents, and it is not clear how this is the case. information will be located.

(1) Please describe how the information provided demonstrates compliance with IEEE 603-1991 Clauses 5.5, 5.7, 5.10, & 6.5. IEEE-603 1991:

(2) Please describe how the information provided demonstrates 5.5 System Integrity. The safety systems shall be NNC 2/17/2011: IEEE conformance with IEEE 7-4.3.2-2003 Clauses 5.5 & 57. designed to accomplish their safety functions under the 603 Clause 5.5 full range of applicable conditions enumerated in the basically states that design basis. conditions identified in IEEE 603 Clauses 4.7 TVA Response: The applicable conditions and & 4.8 must be Common Q PAMS system compliance are contained in addressed in the WNA-LI-00058-WBT-P, Rev. 2, Post-Accident design. Energy supply Monitoring System (PAMS) Licensing Technical conditions have not Report submitted in TVA Letter to NRC dated been identified, or December 3, 2010, Section 11, Contract Compliance explicitly addressed.

Matrix items:

87 and 88 Seismic 89, 90, 91, 92 and 185 EMI/RFI 300, 301 and 302 Environmental Seismic qualification of the equipment to meet the design basis requirements NNC 2/18/11: Clause 5.7 is acceptably 5.7 Capability for Test and Calibration. Capability for addressed.

testing and calibration of safety system equipment

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N shall be provided while retaining the capability of the safety systems to accomplish their safety functions.

The capability for testing and calibration of safety system equipment shall be provided during power operation and shall duplicate, as closely as practicable, performance of the safety function. Testing of Class 1E systems shall be in accordance with the requirements of IEEE Std 338-1987. Exceptions to testing and calibration during power operation are allowed where this capability cannot be provided without adversely affecting the safety or operability of the generating station. In this case:

(1) appropriate justification shall be provided (for example, demonstration that no practical design exists),

(2) acceptable reliability of equipment operation shall be otherwise demonstrated, and (3) the capability shall be provided while the generating station is shut down.

TVA Response: The requirements for test and calibration and Common Q PAMS system compliance, are contained in WNA-LI-00058-WBT-P, Rev. 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report Section 11, TVA Contract Compliance Matrix items:

202 self test 350 Maintenance Bypass NNC 2/18/2011: WNA-351 Loop Tuning Parameters, AR-00189-WBT Rev. 0 400 and 401 3.7.2 Testing, Calibration, and Table 5-2 shows a Verification MTTR of 7.2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />. It 402, 403 and 404, 3.7.3 Channel Bypass or is not clear how this Removal from Operation satisfies the contractual item No.

5.10 Repair. The safety systems shall be designed to 179.

facilitate timely recognition, location, replacement, repair, and adjustment of malfunctioning equipment. The Contract Compliance Matrix Item TVA Response: The requirements for repair and 179 in Revision 3 of the Common Q PAMS system compliance are contained in LTR has been revised WNA-LI-00058-WBT-P, Rev. 2, Post-Accident to show this item as a Monitoring System (PAMS) Licensing Technical deviaition and to reflect Report Section 11, TVA Contract Compliance Matrix TVAs acceptance of items: the 7.2 hour2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> MTTR 179 Mean time to repair value. Attachment 2 202 self test contains WNA-LI-00058-WBT-P, Post-398 3.7 Maintenance Accident Monitoring 399 3.7.1 Troubleshooting System (PAMS)

Licensing Technical 6.5 Capability for Testing and Calibration Report, Revision 3, dated March 2011 6.5.1 Means shall be provided for checking, with a high (proprietary).

degree of confidence, the operational availability of each sense and command feature input sensor required for a safety function during reactor operation.

This may be accomplished in various ways; for example:

(1) by perturbing the monitored variable,

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N (2) within the constraints of 6.6, by introducing and varying, as appropriate, a substitute input to the sensor of the same nature as the measured variable, or (3) by cross-checking between channels that bear a known relationship to each other and that have readouts available.

6.5.2 One of the following means shall be provided for assuring the operational availability of each sense and command feature required during the post-accident period:

(1) Checking the operational availability of sensors by use of the methods described in 6.5.1.

(2) Specifying equipment that is stable and retains its calibration during the post-accident time period.

TVA Response: The requirements for sense and command feature testing and Common Q PAMS system compliance are contained in WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report Section 11 TVA Contract Compliance Matrix items:

10, display of sensor diagnostic information 202 self test 205 self diagnostics and watchdog timer 264 through 271, system self checks 311 system status displays, 341 alarms, 344 on-line diagnostics IEEE 7-4.3.2-2003 5.5 System integrity In addition to the system integrity criteria provided by IEEE Std 603-1998, the following are necessary to achieve system integrity in digital equipment for use in safety systems:

Design for computer integrity Design for test and calibration Fault detection and self-diagnostics 5.5.1 Design for computer integrity The computer shall be designed to perform its safety function when subjected to conditions, external or internal, that have significant potential for defeating the safety function. For example, input and output processing failures, precision or round off problems, improper recovery actions, electrical input voltage and frequency fluctuations, and maximum credible number of coincident signal changes.

If the system requirements identify a safety system preferred failure mode, failures of the computer shall not preclude the safety system from being placed in that mode. Performance of computer system restart operations shall not result in the safety system being inhibited from performing its function.

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N TVA Response: Common Q PAMS system reliability and failure modes are described in:

WNA-AR-00180-WBT, Revision 0, Failure Modes and Effects Analysis (FMEA) for the Post Accident Monitoring System WNA-AR-00189-WBT, Revision 0 Post Accident Monitoring System Reliability Analysis The requirements for mean time between failure and Common Q PAMS system compliance are contained in WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report, Section 11 TVA Contract Compliance Matrix item 178.

5.5.2 Design for test and calibration Test and calibration functions shall not adversely affect the ability of the computer to perform its safety function. Appropriate bypass of one redundant channel is not considered an adverse effect in this context. It shall be verified that the test and calibration functions do not affect computer functions that are not included in a calibration change (e.g., setpoint change).

V&V, configuration management, and QA shall be required for test and calibration functions on separate computers (e.g., test and calibration computer) that provide the sole verification of test and calibration data.

V&V, configuration management, and QA shall be required when the test and calibration function is inherent to the computer that is part of the safety system.

V&V, configuration management, and QA are not required when the test and calibration function is resident on a separate computer and does not provide the sole verification of test and calibration data for the computer that is part of the safety system.

TVA Response: The requirements for test and calibration and Common Q PAMS system compliance are contained in WNA-LI-00058-WBT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report Section 11 TVA Contract Compliance Matrix items:

202 self test 350 Maintenance Bypass 351 Loop Tuning Parameters, 400 and 401 3.7.2 Testing, Calibration, and Verification 402, 403 and 404, 3.7.3 Channel Bypass or Removal from Operation 5.5.3 Fault detection and self-diagnostics Computer systems can experience partial failures that can degrade the capabilities of the computer system, but may not be immediately detectable by the system.

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N Self-diagnostics are one means that can be used to assist in detecting these failures. Fault detection and self-diagnostics requirements are addressed in this sub-clause.

The reliability requirements of the safety system shall be used to establish the need for self-diagnostics. Self diagnostics are not required for systems in which failures can be detected by alternate means in a timely manner. If self-diagnostics are incorporated into the system requirements, these functions shall be subject to the same V&V processes as the safety system functions.

If reliability requirements warrant self-diagnostics, then computer programs shall incorporate functions to detect and report computer system faults and failures in a timely manner. Conversely, self-diagnostic functions shall not adversely affect the ability of the computer system to perform its safety function, or cause spurious actuations of the safety function. A typical set of self-diagnostic functions includes the following:

Memory functionality and integrity tests (e.g.,

PROM checksum and RAM tests)

Computer system instruction set (e.g., calculation tests)

Computer peripheral hardware tests (e.g.,

watchdog timers and keyboards)

Computer architecture support hardware (e.g.,

address lines and shared memory interfaces)

Communication link diagnostics (e.g., CRC checks)

Infrequent communication link failures that do not result in a system failure or a lack of system functionality do not require reporting.

When self-diagnostics are applied, the following self-diagnostic features shall be incorporated into the system design:

a) Self-diagnostics during computer system startup b) Periodic self-diagnostics while the computer system is operating c) Self-diagnostic test failure reporting TVA Response: The requirements for fault detection and self diagnostics and Common Q PAMS system compliance are contained in WNA-LI-00058-WBT-P, Rev. 2, Post-Accident Monitoring System (PAMS)

Licensing Technical Report Section 11 TVA Contract Compliance Matrix items:

107 error free download 202 self test 205 self diagnostics and watchdog timer 263 primary and backup communication 264 through 271, continuous on-line self checks 311 system status displays,

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N 341 alarms, 344 on-line diagnostics 5.7 Capability for test and calibration No requirements beyond IEEE Std 603-1998 are necessary.

TVA Response: No response required.

Concurrence: E-mail from Westinghouse (Andrew P. Drake) to Bechtel (Mark S. Clark), RE: RAI 212 Response - Errors in the Contract Compliance Matrix, dated December 17, 2010 (a) Energy Supply conditions are specified in WNA-DS-01617-WBT-P, System Requirements Specification Rev.

4, Requirement 4.1-1 which requires 120Vac +/-10% and 60+/-3Hz. Power to the Common Q PAMS is provided from the 120Vac vital power system. Per WBN Unit 2 FSAR section 8.3.1.1 the vital 120 volt ac system specifications are 120Vac +/-2% and 60+/-0.5Hz. Based on this, the power provided meets the system requirements.

Electromagnetic compatibility, seismic and environmental qualification of the equipment to meet the design basis requirements is documented in EQ-QR WBT-P, Revision 0 Qualification Summary Report for Post-Accident Monitoring System (PAMS)" (Proprietary)

(Attachment 4). Attachment 5 contains EQ-QR WBT-NP, Revision 0 Qualification Summary Report for Post-Accident Monitoring System (PAMS)" (non-proprietary). Attachment 6 contains CWA-11-3118, Application for Withholding Proprietary Information from Public Disclosure, EQ-QR-68-WBT-P, Revision 0 Qualification Summary Report for Post-Accident Monitoring System (PAMS), (Proprietary), dated February 28, 2011.

(b) The Contract Compliance Matrix Item 179 in Revision 3 of the Licensing Technical Report will be revised to show this item as a deviation and to reflect TVAs acceptance of the 7.2 hour2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> MTTR value. WNA-LI-00058-WBT-P, Post-Accident Monitoring System (PAMS) Licensing Technical Report, Revision 3, (proprietary) dated March 2011, will be submitted no later than March 29, 2011.

213 7.5.2 7/27/2010 Responder: WEC 19. N Open Open-NRC Review EICB RAI EICB (Carte)

ML102980066 Item By letter dated June 18, 2010 (ML101940236) TVA stated Conformance with IEEE 603 is documented in the revised Pending Submittal of Revision 3 of Due 3/29/11 No. 18 (Enclosure 1, Attachment 3, Item No. 3) that the PAMS system Common Q PAMS Licensing Technical Report and the the Licensing Technical Report due design specification and software requirements specification Common Q PAMS System Design Specification. 3/29/11. NNC 2/3/11: The contain information to address the "Theory of Operation identified Description." The staff has reviewed these documents, and it is not Attachment 1 contains the proprietary version of Response is included in letter dated documentation does clear how this is the case. The docketed material does not appear Westinghouse document Tennessee Valley Authority 10/25/10 not include the design to contain the design basis information that is required to evaluate (TVA), Watts Bar Unit 2 (WBN2), Post-Accident Monitoring bases. Please provide compliance with the Clause of IEEE 603. System (PAMS), Licensing Technical Report, Revision 1, NNC to review and revise this schedule for providing (1) Please provide the design basis (as described in IEEE 604 WNA-LI-00058-WBT-P, Dated October 2010 question after LTR R2 is received. the requested Clause 4) of the Common Q PAMS. information.

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N (2) Please provide a regulatory evaluation of how the PAMs Attachment 8 contains the proprietary version of complies with the applicable regulatory requirements for the theory Westinghouse document Nuclear Automation Watts Bar 2 of operation. NSSS Completion Program I&C Projects Post Accident For example: Regarding IEEE 603 Clause 5.8.4 (1) What are the Monitoring System - System Design Specification, WNA-manually controlled protective actions? (2) How do the documents DS-01667-WBT, Rev. 2 dated September 2010.

identified demonstrate compliance with this clause?

TVA Response to Follow-up NRC Request:

The Regulatory Guide 1.97 classification of the Common Q PAMS variables is documented in TVA Design Criteria WB-DC-30-7 Post Accident Monitoring Instrumentation which was submitted as Attachment 5 on TVA to NRC letter Watts Bar Nuclear Plant (WBN) Unit 2 - Instrumentation And Controls Staff Information Requests dated June 18, 2010 (Reference 1)

The hardware design bases for the Common Q PAMS is described in the WBN Unit 2 FSAR section 7.5.1.8 Post Accident Monitoring System (PAMS).

The Common Q PAMS indications are used to support operator response to events described in chapter 15 of the WBN Unit 2 FSAR such as:

RCCA/RCCA Bank dropped/misaligned Steam Generator Tube Rupture Inadvertent Loading of a Fuel Assembly Into an Improper Position Loss of Shutdown Power Major Reactor Coolant System Pipe Ruptures (Loss Of Coolant Accident)

Major Secondary System Pipe Rupture

(

214 C 7/27/2010 Responder: WEC 201. Y Closed Closed EICB RAI TVA Letter dated

( ( (

215 7/29/2010 Responder: WEC 202. Y Closed Closed 216 7.5.1. 7.5.2 7/29/2010 Responder: Clark 203. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 217 7/6/2010 Responder: Clark 204. Y Close Closed EICB RAI TVA Letter dated

( ( ( ( (

218 7/6/2010 Responder: Clark 205. Y Closed Closed EICB RAI TVA Letter dated 219 8/4/2010 Responder: TVA Licensing 206. Y Closed Closed EICB RAI 220 8/4/2010 Responder: Ayala 207. Y Closed Closed EICB RAI TVA Letter dated

( ( ( M ( ( M ( ( ( ( M 221 7.7.1. 7.7.1.3 8/4/2010 Responder: Trelease 208. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 222 8/4/2010 Responder: Clark 209. Y Close Closed EICB RAI TVA Letter dated 223 8/4/2010 Responder: Clark 210. Y Closed Closed EICB RAI C C C C P 224 7.5.1. 7.5.2 8/4/2010 Responder: Norman (TVA CEG) 211. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 225 8/4/2010 Responder: Scansen 212. Y Close Closed EICB RAI TVA Letter dated G G G a G G a G G G G a 226 8/4/2010 Responder: TVA Licensing 213. Y Closed Closed N/A - Information TVA Letter dated See also Open Item Nos. 41 & 270.

227 8/4/2010 Responder: Clark 214. Y Close Closed EICB RAI TVA Letter dated 228 8/4/2010 Responder: Clark 215. Y Closed Closed EICB RAI TVA Letter dated 229 8/4/2010 Responder: Clark 216. Y Closed Closed EICB RAI TVA Letter dated 230 8/4/2010 Responder: Webb 217. Y Closed Closed EICB RAI TVA Letter dated 231 8/4/2010 Responder: Clark 218. Y Closed Closed EICB RAI TVA Letter dated

(

232 8/4/2010 Responder: Clark 219. Y Closed Closed RAI No. 5 TVA Letter dated S

i

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N

( ( ( ( (

233 8/4/2010 Responder: Clark 220. Y Closed Closed EICB RAI TVA Letter dated 234 8/4/2010 Responder: 221. Y Closed Closed N/A - Duplicate N/A

( ( (

235 8/4/2010 Responder: TVA Licensing 222. Y Closed Closed N/A N/A C C C C C 236 8/4/2010 Responder: Clark 223. Y Close Closed EICB RAI TVA Letter dated 237 8/4/2010 Responder: Clark 224. Y Closed Closed EICB RAI TVA Letter dated G G G 238 8/4/2010 Responder: Webb/Hilmes 225. Y Closed Closed N/A - Duplicate N/A 239 8/4/2010 Responder: Hilmes 226. Y Closed Closed N/A - Meeting N/A 240 8/4/2010 Responder: Clark 227. Y Close Closed Ml102910008 TVA Letter dated 241 ( ( 8/4/2010 Responder: Davies 228. Y Closed Closed RAI No. 10 TVA Letter dated

(

242 C S 8/4/2010 Responder: Hilmes 229. Y Close Closed EICB RAI TVA Letter dated G

i 243 8/3/2010 Responder: WEC 230. Y Closed Closed N/A - Closed to N/A 244 8/3/2010 Responder: WEC 20. N Open Open-NRC Review EICB RAI Response is LIC-101 Rev. 3 Appendix B Section 4, EICB (Carte)

ML102980066 Item provided in letter "Safety Evaluation" states: "the Section 8.2.2 of the Common Q SPM (ML050350234) states that The process related requirements have been removed from Revised response is included in Due 2/25/11 Document No. 14 dated 10/25/10. information relied upon in the SE must the Software Requirements Specification (SRS) shall be developed revision 2 of the Software Requirements Specification (SRS). letter dated 12/22/10 revisions be docketed correspondence."

using IEEE 830 and RE 1.172. Clause 4.8, "Embedding project requirements in the SRS," of the IEEE 830 states that an SRS Attachment 3 of letter dated 10/25/10 contains the Response is provided in letter dated NNC 2/2/11: Issues LIC-101 Rev. 3 states: "The safety should address the software product, not the process of producing proprietary version of Westinghouse document Nuclear 10/25/10. with Common Q TR & analysis that supports the change the software. In addition Section 4.3.2.1 of the SPM states "Any Automation, Watts Bar 2 NSSS Completion Program, I&C SPM compliance were requested should include technical alternatives to the SPM processes or additional project specific Projects, Software Requirements Specification for the Post NNC 11/18/10: SysRS Rev. 2 also discussed in the weekly information in sufficient detail to enable information for the ...SCMP...shall be specified in the PQP. Accident Monitoring System, WNA-SD-00239-WBT, contains process requirements that public meetings. the NRC staff to make an independent Revision 2, Dated September 2010. are more appropriately incorporated Westinghouse to assessment regarding the acceptability Contrary to these two statements in the SPM, the WBN2 PAMS into process documentation. perform Common Q TR of the proposal in terms of regulatory SRS (ML101050202) contains many process related requirements, & SPM compliance self requirements and the protection of for example all seventeen requirements in Section 2.3.2, TVA Response to Follow-up NRC Request: assessment; this will be public health and safety."

"Configuration Control," address process requirements for As shown is the listed documents, process related discussed in detail on configuration control. requirements have been deleted from the SRS and SysRS in the next audit.

Revision 3:

Please explain how the above meets the intent of the approved SPM. Attachment 1 contains proprietary version of WNA-DS-01617-WBT-P, Revision 3, Post Accident Monitoring System-System Requirements Specification, dated December 2010.

Attachment 7 contains the proprietary version of WNA-SD-00239-WBT-P, Revision 3, Software Requirements Specification for the Post Accident Monitoring System, dated December 2010.

Source: E-mail from Westinghouse (Andrew P. Drake) to Bechtel (Mark S. Clark), RE: Common Q RAI concerns, dated December 8, 2010 (Reference 17)

TVA Response to Follow-up NRC Request:

The documents discussed in Item 3 have been revised to address compliance with the Topical Report (TR) and the Software Program Manual (SPM).

245 8/3/2010 Responder: WEC 21. N Open Open-NRC Review EICB RAI LIC-101 Rev. 3 Appendix B Section 4, EICB (Carte)

ML102980066 Item "Safety Evaluation" states: "the Section 5.8 of the Common Q SPM (ML050350234) identifies the Relates to the commitment to provide the test plan and the Pending Submittal of the Test Due 3/29/11 No. 119 information relied upon in the SE must required test documentation for systems developed using the SPM compliance matrix Summary Report due 3/29/11 be docketed correspondence."

Common Q SPM. Please provide sufficient information for the NNC 2/2/11: Issues NRC staff to independently assess whether the test plan for WBN2 Attachment 9 contains the Westinghouse document Post Response included in letter dated with the Common Q TR LIC-101 Rev. 3 states: "The safety

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N PAMS, is as described in the SPM (e.g., Section 5.8.1). Accident Monitoring System Test Plan, WNA-PT-00138- 12/3/10 & SPM were discussed analysis that supports the change WBT, Revision 0, dated November 2010. Attachment 10 in the weekly public requested should include technical contains the Westinghouse Application for Withholding for Common Q PAMS Test Summary meetings. information in sufficient detail to enable the Post Accident Monitoring System Test Plan, WNA-PT- Report scheduled to be submitted Westinghouse to the NRC staff to make an independent 00138-WBT, Revision 0, dated November 2010. March 29, 2011. perform Common Q TR assessment regarding the acceptability

& SPM compliance self of the proposal in terms of regulatory TVA Response to Follow-up NRC Request: assessment requirements and the protection of public health and safety."

The results of the self assessment were reviewed by Westinghouse with the NRC on February 2, 2011 and were further reviewed by TVA during the NRC Common Q PAMS audit during the week of February 28 to March 4, 2011.

Corrections to WNA-TR-02451-WBT, Test Summary Report for the Post Accident Monitoring System and the self assessment were made as a result of the TVA review to ensure this comment was fully addressed.

By agreement between TVA, WEC and the NRC, the Post Accident Monitoring System Test Plan, WNA-PT-00138-WBT, Revision 0 will not be revised. Instead a non-proprietary Common Q PAMS Test Summary Report will be developed and submitted to address the issues with TR and SPM compliance. Attachment 1 contains non-proprietary WNA-TR-02451-WBT, Revision 0, Test Summary Report for the Post Accident Monitoring System, dated March 2011.

246 8/3/2010 Responder: WEC 22. N Open Open-NRC Review EICB RAI Response is LIC-101 Rev. 3 Appendix B Section 4, EICB (Carte)

ML102980066 Item provided in letter "Safety Evaluation" states: "the Section 4.3.2.1, "Initiation Phase" of the Common Q SPM As agreed ISG6 does not apply to the Common Q PAMS Pending Submittal of Revision 3 of Due 3/29/11 No. 15 dated 10/25/10 information relied upon in the SE must (ML050350234) requires that a Project Quality Plan (PQP) be platform. The information required to address this question the Licensing Technical Report due be docketed correspondence."

developed. Many other section of the SPM identify that this PQP concerning the PQP and SPM has been added to 3/29/11. PQP provided for audit the NNC 2/2/11: Issues should contain information required by ISG6. Please provide the compliance matrix in revision 1 of the Licensing Technical week of 2/28/11. with the Common Q TR LIC-101 Rev. 3 states: "The safety PQP. If "PQP" is not the name of the documentation produced, Report. & SPM implementation analysis that supports the change please describe the documentation produced and provide the Response is provided in letter dated were discussed in the requested should include technical information that the SPM states should be in the PQP. Attachment 1 of letter dated 10/25/10 contains the 10/25/10 weekly public meetings. information in sufficient detail to enable proprietary version of Westinghouse document Tennessee Westinghouse to the NRC staff to make an independent Valley Authority (TVA), Watts Bar Unit 2 (WBN2), Post- NNC 11/18/10: PQP has not been perform Common Q TR assessment regarding the acceptability Accident Monitoring System (PAMS), Licensing Technical provided and CQ PAMS LTR Rev. 1 & SPM compliance self of the proposal in terms of regulatory Report, Revision 1, WNA-LI-00058-WBT-P, Dated October does not contain comparable assessment requirements and the protection of 2010 information. public health and safety."

TVA Response to Follow-up NRC Request:

The results of the Common Q TR and SPM self assessment were reviewed by Westinghouse with the NRC on February 2, 2011.

The Westinghouse Watts Bar Unit 2 NSSS Completion I&C Projects Project Quality Plan, WNA-PQ-00220-WBT, Revision 1 is available for NRC audit at the Westinghouse Rockville Office and was available for review during the NRC Common Q PAMS audit during the week of February 28 to March 4, 2011. During the audit, the Westinghouse Quality Assurance in process audit of the Common Q PAMS project was reviewed by the NRC inspector with no issues identified.

( ( (

247 8/8/2010 Responder: WEC 231. Y Closed Closed EICB RAI Response is LIC-101 Rev. 3 Appendix B Section 4, 248 8/8/2010 Responder: WEC 232. Y Closed Closed Response is LIC-101 Rev. 3 Appendix B Section 4, C C C 249 8/8/2010 Responder: WEC 233. Y Closed Closed LIC-101 Rev. 3 Appendix B Section 4,

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N 250 8/8/2010 Responder: WEC 23. N Open Open-NRC Review LIC-101 Rev. 3 Appendix B Section 4, EICB (Carte)

"Safety Evaluation" states: "the The SPM describes the software and documents that will be Westinghouse develops Software Release Reports/Records Revised response included in letter NNC 2/2/11: To be information relied upon in the SE must created and placed under configuration control. The SCMP (e.g., and a Configuration Management Release Report. Describe dated 12/22/10 addressed during the be docketed correspondence."

SPM Section 6, Software Configuration Management Plan) the documents and when they will be produced. Summarize next audit.

describes the implementation tasks that are to be carried out. The guidance on how to produce these records, focus on project Response included in letter dated LIC-101 Rev. 3 states: "The safety acceptance criterion for software CM implementation is that the specific requirements in SPM etc. 10/25/10. analysis that supports the change tasks in the SCMP have been carried out in their entirety. requested should include technical Documentation should exist that shows that the configuration TVA Response to Follow-up NRC Request: information in sufficient detail to enable management tasks for that activity group have been successfully the NRC staff to make an independent accomplished. Please provide information that shows that the CM The following documentation shows that the configuration assessment regarding the acceptability tasks have been successfully accomplished for each life cycle management tasks for that activity group have been of the proposal in terms of regulatory activity group. successfully accomplished. requirements and the protection of public health and safety."

1. WNA-LI-00058-WT-P, Revision 2, Post-Accident Monitoring System (PAMS) Licensing Technical Report submitted in TVA Letter to NRC dated December 3, 2010, (Reference 1) contains the following changes to address the NRC requests:

a. Section 2.2.1 Hardware/Software Change Process has been added to describe the process of how changes are evaluated.

b. Section 2.2.2, Software has been expanded to include a table detailing evolutionary software changes that have occurred since the initial submittal and the change evaluation of the life cycle.

2. WNA-PT-00138-WBT, Revision 0, Nuclear Automation Watts Bar 2 NSSS Completion Program I&C Projects, Post Accident Monitoring System Test Plan, (Proprietary), dated November 2010 submitted in TVA Letter to NRC, dated December 3, 2010 (Reference 1).

251 8/8/2010 Responder: WEC 24. N Open Open-NRC Review LIC-101 Rev. 3 Appendix B Section 4, EICB (Carte)

"Safety Evaluation" states: "the The SPM describes the software testing and documents that will be The software testing performed and documents created are Pending Submittal of the Test Due 3/29/11 information relied upon in the SE must created. The SPM also describes the testing tasks that are to be addressed by the SPM Compliance matrix contained in Summary Report due 3/29/11 be docketed correspondence."

carried out. The acceptance criterion for software test Revision 1 of the Licensing Technical Report. NNC 2/2/11: Issues implementation is that the tasks in the SPM have been carried out Revised response included in letter with the Common Q TR LIC-101 Rev. 3 states: "The safety in their entirety. Please provide information that shows that Attachment 1 of the letter dated 10/25/10 contains the dated 12/22/10 & SPM were discussed analysis that supports the change testing been successfully accomplished. Proprietary version of Westinghouses document titled: in the weekly public requested should include technical Tennessee Valley Authority (TVA), Watts Bar Unit 2 Partial response is provided in letter meetings. information in sufficient detail to enable (WBN2), Post-Accident Monitoring System (PAMS), dated 10/25/10 Westinghouse to the NRC staff to make an independent Licensing Technical Report, Revision 1, WNA-LI-00058- perform Common Q TR assessment regarding the acceptability WBT-P, Dated October 2010 & SPM compliance self of the proposal in terms of regulatory assessment requirements and the protection of TVA Response to Follow-up NRC Request: public health and safety."

Please see the response to RAI item 21 in letter dated 12/22/10, NRC Matrix Item 250.

TVA Response to second Follow-up NRC Request:

The results of the Common Q TR and SPM self assessment were reviewed by Westinghouse with the NRC on February 2, 2011.

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N By agreement between TVA, WEC and the NRC, the Post Accident Monitoring System Test Plan, WNA-PT-00138-WBT, Revision 0 will not be revised. Instead a non-proprietary Common Q PAMS Test Summary Report will be developed and submitted to address the issues with TR and SPM compliance. Attachment 1 contains non-proprietary WNA-TR-02451-WBT, Revision 0, Test Summary Report for the Post Accident Monitoring System, dated March 2011.

252 8/8/2010 Responder: WEC 25. N Open Open-NRC Review LIC-101 Rev. 3 Appendix B Section 4, EICB (Carte)

"Safety Evaluation" states: "the The SPM contain requirements for software requirements Explain response to AP1000 audit report. Response included in letter dated Due 2/25/11 (document information relied upon in the SE must traceability analysis and associated documentation (see Section RTM docketed NRC awaiting V&V evaluation of RTM. 12/22/10 submittals) be docketed correspondence."

5.4.5.3, Requirements Traceability Analysis). Please provide information that demonstrates that requirements traceability The following responses are based on WBN Unit 2 Common Read ML091560352 NNC 2/2/11: Updated LIC-101 Rev. 3 states: "The safety analysis has been successfully accomplished. Q PAMS traceability: RTMs and analysis that supports the change specifications to be requested should include technical Software requirements traceability analysis is described in provided. information in sufficient detail to enable the following documents: the NRC staff to make an independent Requirements assessment regarding the acceptability

1. WNA-LI-00058-WBT-P, Revision 2, Post-Accident traceability to be of the proposal in terms of regulatory Monitoring System (PAMS) Licensing Technical addressed during he requirements and the protection of Report submitted in TVA Letter to NRC dated next audit. public health and safety."

December 3, 2010, (Reference 1) Section 11, TVA Contract Compliance Matrix

2. WNA-VR-00279-WBT, Watts Bar 2 NSSS Completion Program I&C Projects Requirements Traceability Matrix for the Post Accident Monitoring System (available for NRC audit at the Westinghouse Rockville office)

3. WNA-VR-00280-WBT, Watts Bar 2 NSSS Completion Program I&C Projects Requirements Traceability Matrix for the Reactor Vessel Level Indication System (RVLIS) Custom PC Elements (available for NRC audit at the Westinghouse Rockville office) This document addresses the RSEDs used in the WBN Unit 2 Common Q PAMS.

The V&V evaluation of the RTM is documented in section 2.2.2 of the following documents:

1. The Independent Verification & Validation (IV&V) report covering the Concept and Definition phases (Nuclear Automation Watts Bar Unit 2 NSSS Completion Program I&C Projects, IV&V Summary Report for the Post Accident Monitoring System, (Proprietary), WNA-VR-00283-WBT, Revision 1, dated November 2010), submitted in TVA Letter to NRC dated December 3, 2010 (Reference 1).

2. The Independent Verification &Validation (IV&V) report covering the Design and Implementation phases (Nuclear Automation Watts Bar Unit 2 NSSS Completion Program I&C Projects, IV&V Summary Report for the Post Accident Monitoring System, (Proprietary), WNA-VR-00283-WBT, Revision 2, dated

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N November 2010), submitted in TVA Letter to NRC dated December 3, 2010 (Reference 1).

3. The integration phase is covered in Attachment 10, the proprietary version of IV&V Summary Report for the Post Accident Monitoring System, WNA-VR-00283-WBT-P, Revision 3, dated December 2010.

Attachment 11 contains the non-proprietary version of IV&V Summary Report for the Post Accident Monitoring System, WNA-VR-00283-WBT-NP, Revision 3, dated December 2010. Attachment 12 contains the Application For Withholding Proprietary Information From Public Disclosure WNA-VR-00283-WBT-P, Revision 3, IV &V Summary Report for the Post Accident Monitoring System (Proprietary), dated December 2010.

TVA Response to Follow-up NRC Request:

See Response to item 3 (Matrix Item Number 142)

( ( ( ( ( ( ( ( ( ( ( ( ( ( ( (

253 8/8/2010 Responder: Clark 234. Y Closed Closed TVA Letter dated Related to Open Item no. 83.

254 8/10/2010 Responder: WEC 235. Y Closed Closed N/A - Request to TVA Letter dated 255 8/10/2010 Responder: WEC 236. Y Closed Closed N/A - Request to TVA Letter dated 256 8/10/2010 Responder: WEC 237. Y Closed Closed N/A - Request to TVA Letter dated 257 8/10/2010 Responder: WEC 238. Y Closed Closed N/A - Request to N/A 258 8/10/2010 Responder: WEC 239. Y Closed Closed N/A - Request to N/A 259 8/10/2010 Responder: WEC 240. Y Closed Closed N/A - Request to TVA Letter dated 260 8/10/2010 Responder: WEC 241. Y Closed Closed N/A - Request to N/A C C C C C C C C C C C C C C C C 261 8/10/2010 Responder: WEC 242. Y Closed Closed N/A - Closed to TVA Letter dated LIC-110 Rev. 1 Section 6.2.2 states:

262 8/10/2010 Responder: WEC 243. Y Closed Closed N/A - Request to N/A 263 8/11/2010 Responder: WEC 244. Y Closed Closed ML101650255, Item 264 8/11/2010 Responder: WEC 245. Y Closed Closed ML101650255, Item 265 8/11/2010 Responder: WEC 246. Y Closed Closed ML101650255, Item 266 8/11/2010 Responder: Webb/Webber 247. Y Closed Closed TVA Letter dated 267 8/11/2010 Responder: WEC 248. Y Closed Closed 268 8/19/2010 Responder: WEC 249. N Closed Closed

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269 8/20/2010 Responder: NRC 250. Y Closed Closed N/A N/A

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270 8/23/2010 Responder: Clark 251. Y Closed Closed See also Open Item Nod. 41 & 245.

M M M 271 8/23/2010 Responder: WEC 252. Y Closed Closed N/A - Closed to NA C C P 272 7.5.2. 7.5.1 8/26/2010 Responder: Clark 253. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL a a a 273 7.5.2. 7.5.1 8/26/2010 Responder: Clark 254. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 274. 7.5.2. 7.5.1 8/26/2010 Responder: Clark 255. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL

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274. 8/26/2010 Responder: Stockton 256. Y Closed Closed RAI No. 6 TVA Letter dated S

i

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275 8/27/2010 Responder: Clark 257. Y Closed Closed Not Required N/A 276 7.6 7.6 ( ( ( 8/27/2010 Responder: Webb 258. Y Closed Closed EICB RAI TVA Letter dated S

277 7.6 7.6.3 G G G 8/27/2010 Responder: Clark 259. Y Close Closed EICB RAI TVA Letter dated i

278 7.6 7.6.6 8/27/2010 Responder: Trelease 260. Y Close Closed EICB RAI TVA Letter dated

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N

( ( ( ( (

279 7.6 7.6.6 8/27/2010 Responder: Mather 261. Y Close Closed EICB RAI TVA Letter dated 280 7.6 7.6.6 8/27/2010 Responder: Trelease 262. Y Closed Closed EICB RAI TVA Letter dated 281 7.6 7.6.8 8/27/2010 Responder: Webb 263. Closed Closed EICB RAI TVA Letter dated D D D D D 282 7.6 7.6.9 8/27/2010 Responder: Trelease 264. Y Close Closed EICB RAI TVA Letter dated

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283 7.7.5 XX 8/27/2010 Responder: Clark 265. Y Closed Closed EICB RAI No.13 TVA Letter dated This item is a follow-up question to item 284 7.7.3 7.4.1 8/27/2010 Responder: Webber 266. Y Closed Closed EICB RAI No.14 TVA Letter dated This item is a follow-up question to item a a a a a 285 7.3.3 7.3 8/27/2010 Responder: McNeil 267. Y Closed Closed EICB RAI No.15 TVA Letter dated This item is a follow-up question to item G G G G G 286 7.7.3 9.3.4.2.4 8/27/2010 Responder: Webber 268. Y Closed Closed EICB RAI No.16 TVA Letter dated 287 7.3 7.3-1 8/27/2010 Responder: Elton 269. Y Closed Closed ML102390538, Item Response 288 7.3 9/2/2010 Responder: McNeil 270. Y Closed Closed EICB RAI

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289 9/2/2010 Responder: Faulkner 271. Y Closed Closed RAI No. 24 TVA Letter dated 290 7.7 9/7/2010 Responder: Clark 272. Y Closed Closed N/A N/A This item is a duplicate of item 291.

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291 7.7 9/7/2010 Responder: Clark 273. Y Closed Closed TVA Letter dated

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292 7.2.5 7.2 9/7/2010 Responder: Craig 274. Y Closed Closed EICB RAI TVA Letter dated M (

293 7.7.4 7.2.2.3.5 9/8/2010 Responder: Craig 275. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 294 7.3 7.3.1.1.1 9/9/2010 Responder: Elton 276. Y Closed Closed ML102390538, Item Response C a a a a a C C S 295 7.3 7.3.1.1.2 9/9/2010 Responder: Elton 277. Y Closed Closed ML102390538, Item Response a G 296 7.3 7.3.1.2.1 9/9/2010 Responder: Elton 278. Y Closed Closed ML102390538, Item Response i

297 7.3 7.3.1.2.2 9/9/2010 Responder: Elton 279. Y Closed Closed ML102390538, Item Response 298 7.3 XX 9/9/2010 Responder: Clark 280. Y Closed Closed ML102390538, Item Response 299 Provide Common Q Software Requirements Specification Post Attachment 41 of the 10/5 letter contains the Common Q 281. Y Closed Closed TVA Letter dated

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300 Need Radiation Monitoring System Description/Design Criteria Responder: Temples/Mather 282. Y Closed Closed RAI No. 25 TVA Letter S

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301 1.TVA is requested to address the consequences of software Responder: WEC/Davies/Clark 283. Y Closed Closed RAI No. 11 TVA Letter dated Note 1:

302 7.5.2. 7.5.1 09/17/2010 Responder: Tindell 284. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL

( ( ( (

303 7.5.2. 7.5.1 09/17/2010 Responder: Tindell 285. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 304 7.5.2. 7.5.1 09/17/2010 Responder: Tindell 286. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL D D (

305 7.5.2. 7.5.1 09/17/2010 Responder: Tindell 287. Y Closed Closed EICB RAI TVA Letter dated EICB RAI ML102861885 sent to DORL 306 7.1 7.1 FSAR amendment 100, page 7.1-12 provides the definition of Responder: Hilmes 288. Y Closed Closed EICB RAI TVA Letter dated

( ( ( ( ( ( ( ( M M M M 307 7.1 7.1 (1) FSAR amendment 100, Section 7.1, page 7.1-12, definition of Responder: Hilmes 289. Y Closed Closed EICB RAI TVA Letter dated 308 7.1 7.1 (1) FSAR Amendment 100, Section 7.1, page 7.1-13, definition of Responder: Hilmes 290. Y Closed Closed EICB RAI TVA Letter dated a a S 309 7.1 7.1.2.1.9 (1) FSAR amendment 100, Page 7.1-14, Westinghouse setpoint Responder: Hilmes 291. Y Closed Closed EICB RAI TVA Letter dated 310 7.1 7.1.2.1.9 292. Y G G G G G G G G a a a a (1) FSAR amendment 100, Page 7.1-14, TVA setpoint Responder: Hilmes Closed Closed EICB RAI TVA Letter dated 311 7.1 7.1 Both Westinghouse and TVA setpoint methodology do not have Responder: Hilmes 293. Y Closed Closed EICB RAI TVA Letter dated i

312 7.0 By letter dated September 10,2010, TVA provided the summary Responder: Stockton 294. Y Close Closed EICB RAI TVA Letter dated 313 7.7.8 7.7.1.12 EDCR 52408 (installation of AMSAC in Unit 2) states that Design Responder: Ayala 295. Y Closed Closed EICB RAI No.18 TVA Letter dated 314 7.3 7.3 The following 50.59 changes were listed in the March 12 RAI Responder: Stockton 296. Y Closed Closed EICB RAI No. 19 TVA Letter dated Related to OI 10 315 7.5.3 7.5.3 IE Bulletin 79-27 required that emergency operating procedures to Responder: S. Smith (TVA Operations) 297. Y Close Closed EICB RAI TVA Letter dated

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316 7.5.2. 7.5 TVA has provided various documents in support of RM-1000 high Responder: Temples/Mather 298. Y Closed Closed RAI No. 26 S

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317 7.5.2. 7.5 TVA has provided a proprietary and a non-proprietary version of Responder: Temples 299. Y Closed Closed RAI No. 27 TVA Letter dated S

i 318 7.5.2. 7.5 TVA has provided the following documents for RM-1000 Responder: Temples 26. Y Closed Closed RAI No. 28 TVA Letter dated 3 equipment qualification: ML102980005 10/29/10, Encl 1 EICB Response provided in letter dated Response acceptable 10/26/2010 Item 34, and TVA (Singh) (i) Qualification Test Report for RM-1000 Processor Module 10/21/10 per TVA letter of letter 11/24/10, and Current-To-Frequency Converter 04508905-QR (i) Applicable to WBN Unit 2. 04508905-1QR is 10/21/10, Enclosure 1, Att. 2.

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N (January 2001) applicable only in regards to the RM-1000, with the Revised response is included in Item 26.

(ii) Qualification Test Report Supplement, RM-1000 Upgrades exception of re-qualification of certain RM-1000 letter dated 12/22/10.

04508905-1SP (June 2006) equipment differences covered in the -1SP report. Due 2/25/11 (iii) Qualification Test Report Supplement, RM-1000 Upgrades The Current-to-Frequency (I-F) converter module Note check 04508905-1QR or QR.

04508905-2SP (June 2008) qualifications in the base report and the -1SP report Staff version is QR only. Response update (iv) Qualification Test Report Supplement, RM-1000 Upgrades are not applicable to the RM-1000s, and will be used required. It is clear that 04508905-3SP (May 2008) later as references in the WBN Unit 2 specific Response is included in letter dated 04508903-2SP and -

qualification reports. 10/29/10 3SP are not applicable.

Please clarify whether all of these are fully applicable to WBN2 or The response for are they applicable with exceptions? If with exceptions, then (ii) Applicable to WBN Unit 2. applicability of please clarify what those are. 04508905-QR and -

(iii) Not applicable to WBN Unit 2 1SP to RM-1000 and IF Supplement 3 was issued one month prior to supplement 2. converter is not clear.

Please explain the reason for the same. (iv) Not applicable to WBN Unit 2 Check page numbers of The 04508905-3SP report was prepared for another TVA Appendix F plant, as a monitor system-level report, where the system (missing/duplicate included equipment mostly based on the base report pages).

equipment items. These two -2SP and -3SP supplement Check applicability of reports were essentially worked concurrently, but the -2SP Appendix C to RM1000 document review/release process resulted in the release instead of RM2300?

time difference.

See items 336 and 337.

TVA Response to Follow-up NRC Request:

All equipment NOTE: The response for the current to frequency (I to F) qualification reports converter in item 1 below is a reversal of the including supplements response previously provided in TVA to NRC letter 2SP and 3SP have dated October 29, 2010 (Reference 22). General been reviewed as Atomics Electronic Systems Inc. (GA-ESI) notified vendor drawings for TVA of this change on December 8, 2010 WBN-2. Please explain (Reference 20). the reason for applicability of one (1) The applicability of the qualification reports from GA- report and not the ESI e-mail dated December 10, 2010 (Reference 19) is other.

as follows:

Further all TVA/Bechtel

a. 04508905-QR Qualification Test Report for RM- reviews seems to be 1000 Processor Module and Current-to- dispositioned as Code Frequency Converter is applicable to the WBN 4, Review not required.

Unit 2 RM-1000 and I to F converter modules. Work may proceed.

The applicable reports

b. 04508905-1SP Supplement to Qualification Test should have been Report for RM-1000 Processor Module and reviewed prior to Current-to-Frequency Converter is applicable to dispositioning them.

the WBN Unit 2 RM-1000 module. Please explain the apparent lack of review

c. 04508905-1SP is not applicable to the WBN Unit of WBN-2 applicable 2 I to F converter module. documents. Was appropriate review

d. 04508905-2SP Qualification Test Report guidance used?

Supplement, I-F Converter Upgrades is applicable to the WBN Unit 2 I to F converter Further update required module.

Provide model GA-ESI provided two other reports required to support number/part number for qualification of the containment high range radiation the RM-1000 and I/F monitors. The report descriptions are from GA-ESI e-converter used for mail on December 8, 2010 (Reference 20). The WBN-2. This information is needed

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N reports are: to verify that the model or part number used is

e. GA-ESI report 04038903-QSR, Qualification the equipment that has Summary Report for Watts Bar Nuclear Plant Unit been qualified for WBN-2 Replacement Radiation Monitors: The report is 2.

the principle report and the starting point for all the radiation monitors provided as part of the Provide qualification replacement contract. The report describes each reports 04038903-QSR monitor; referenced to the technical manual for and 04038903-7SP by the physical and functional description and lists the dues date of the major components of the monitor system. 1/22/11.

Report section 3 identifies the TVA Watts Bar Unit 2 Environmental, Seismic, Electromagnetic Submit a copy of any Compatibility (EMC), and software requirements other relevant reviewed for each monitor. In section 4 a brief description versions of the of GA-ESI generic qualification programs for all qualification reports.

radiation monitoring equipment in each of the four above areas is provided. The qualification basis Submit copies of the for each monitor is provided in a separate reviewed reports for supplement to the principle report and is identified 04508905-QR, in section 5. 04508905-1SP, 04508905-2SP.

f. GA-ESI report 04038903-7SP, Qualification Basis for 04034101-001 (2-RE-90-271, -272, - Clarification of 273, & -274) [TVA Note: These are the applicability of existing containment post accident high range radiation reports is acceptable.

monitors.]: GA-ESI report 04038903-7SP is divided into subsections to address the Environmental, Seismic, EMC, and Software qualification basis for the High Range Area Monitors. Within each subsection, the HRAM is compared to a tested or analyzed article to demonstrate similarity and/or evaluate differences, the tests that were performed, and evaluation to demonstrate qualification. In most cases, the qualification basis references other documents. In addition to qualification, a section is provided that lists the life of those replaceable components that have life expectancy less than 40 years.

(2) This is addressed by response to RAI Question 336 in TVA to NRC letter dated November 24, 2010 (Reference 8)

(3) This is addressed by response to RAI Question 337 in TVA to NRC letter dated November 24, 2010 (Reference 8)

(4) The 04508905-3SP Qualification Test Report Supplement, RM-1000 Upgrades is not applicable to WBN Unit 2 (Reference 19).

Please see Item 1, above, for applicability of the other reports.

(5) TVA provided the proprietary versions of the reports by letter dated March 12, 2010 (Reference 10). By letter dated July 15, 2010 (Reference 23), TVA provided the

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N non-proprietary version of the reports and included a copy of the proprietary report which had been erroneously marked as having not been reviewed.

04508905-QR report has been reviewed by TVA. The review of the remaining reports is ongoing.

(6) See item 5.

TVA Response to Follow-up NRC Request:

The following documents are the qualification documents associated with the RM-1000 radiation monitors:

Attachment 5 contains the approved proprietary version of General Atomics Electronic Systems 04508905-1SP, Qualification Test Report Supplement, RM-1000 Upgrade.

Attachment 6 contains the approved proprietary version of General Atomics Electronic Systems 04508905-2SP, Qualification Test Report Supplement, I-F Converter Upgrades.

Attachment 7 contains the approved proprietary version of General Atomics Electronic Systems 04038903-7SP, Qualification Basis for 04034101 (2-RE-90-271, 272, 273 & 274).

Attachment 8 contains the proprietary version of General Atomics Electronic Systems 04038903-QSR, Qualification Summary Report for Watts Bar Nuclear Plant Unit 2 Replacement Radiation Monitors. In order to meet the NRC submittal schedule, the engineering review of this document was limited to the RM-1000. The document has been accepted for the RM-1000 monitors. Engineering approval will not occur until full review for all covered monitors is complete.

Attachment 23 contains the approved proprietary version of General Atomics Electronic Systems 04508905-QR, Qualification Test Report for RM-1000 Processor Module and Current-To-Frequency Converter.

(

319 7.5.2. 7.5 TVA provided System Verification Test Results 04507007-1TR Responder: Temples 300. Y Closed Closed RAI No. 29 TVA Letter dated S

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320 I Per Westinghouse letter WBT-D-2340, TENNESSEE VALLEY Responder: Clark 301. Y Closed Closed N/A N/A Duplicate of item 156 321 ( E For the purposes of measuring reactor coolant flow for Reactor Responder: Clark 302. Y Closed Closed N/A N/A Duplicate of OI# 157 C I 322 7.7.1.11 Section 7.7.1.11 will be added to FSAR Amendment 101 to provide Responder: Clark 303. Y Closed Closed 323 WCAP-13869 revision 1 was previously reviewed under WBN Unit Responder: Hilmes/Unit 1 1. Y Open Open-TVA/Bechtel TVA Letter dated 1 SER SSER 13 (Reference 8). Unit 2 references revision 2. An 10/29/10 analysis of the differences and their acceptability will be submitted Attachment 12 contains the WCAP 13869 Revision 1 to Due 3/29/11 Due: Enclosure 1 Item to the NRC by November 15, 2010 Revision 2 Change Analysis. No. 36 EICB(Garg)

Revised Response is included in Need to provide TVA Response to Follow-up NRC Request letter dated 10/29/10 additional info on why A FSAR change will be submitted in a future FSAR Rev. 1 is acceptable for amendment to change the revision level back to 1. The staff is confused with the both units.

response since both units have TVA Response to Second Follow-up NRC Request reference leg not insulated Rev 2 3/10/11

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N should apply to Unit 1 also and Staff does not agree The differences between the Revision 1 and Revision 2 there should be no difference with the statement that WCAPs is documented in Attachment 12, WCAP 13869 between Unit 1 and 2 there is no technical Revision 1 to Revision 2 Change Analysis, to TVA to NRC differences between letter dated October 29, 2010 (Reference 2). The design WCAP-13869 rev.1 and bases for the response to feedwater break inside rev2., but staff agree containment, as documented in Chapter 15 of the WBN Unit that rev1 and change 2 FSAR, is the same for WBN Unit 1. Since WBN Unit 2 is analysis could be basis required to match the WBN Unit 1 licensing basis to the for acceptance for both extent practical, the decision was made to revise the WBN Watts Bar units.

Unit 2 FSAR to agree with the WBN Unit 1 FSAR which uses Revision 1. 4/6/11 TVA response is acceptable, however this item remains open until TVA makes changes to FSAR.

324 B B Per the NRC reviewer, the BISI calculation is not required to be 304. Y Closed Closed

(

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325 M The Unit 2 loops in service for Unit 1 that are scheduled to be Responder: TVA Startup Olson 305. Y Closed Closed Closed to open item ?

G G a

326 TVA uses double-sided methodology for as-found and as-left Responder: Webb 306. Y Closed Closed TVA Letter dated 327 Attachment 36 contains Foxboro proprietary drawings 08F802403- Responder: Webber 27. Y Open Open-NRC Review SC-2001 sheets 1 through 6. An affidavit for withholding and non-DORL (Poole) proprietary versions of the drawings will be submitted by January In accordance with correspondence from Foxboro, there is Response Included in letter dated Due 11/24/10 31, 2011. no proprietary information contained in the 08F802403-SC- 11/24/10 2001 drawings. Based on this, no affidavit for withholding is required. Attachment 1 contains versions of the drawings with the proprietary information block removed.

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328 7.5.2. 7.5 Provide the model number for the four containment high range Responder: Temples 307. Y Closed Closed RAI No. 30 TVA Letter dated S

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( 308. Y 329 7.6.1 7.6.7 D ( Section 7.6.7 of the FSAR (Amendment 100) states that, The Responder: Clark Closed Closed RAI No. 1 TVA Letter dated a S i 309. Y 330 7.3 7.3 Related to Item 298 Responder: Hilmes/Faulkner Closed Closed EICB RAI No.20 Item 7, TVA letter 331 7.6.1 7.6.7 ( As a follow up of OI 190, Staff has reviewed the proprietary version Responder: WEC/Harless/Clark 310. Y Closed Closed RAI No. 8 TVA Letter dated Follow-up of OI-190.

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332 7.5.2. 7.5.1 D ( 10/26/2010 311. Y Closed Closed ML103000105 Item TBD EICB RAI ML103000105 sent to DORL M M 333 7.5.2. 7.5.1 a S 10/27/2010 312. Y Closed Closed ML103000105 Item TBD EICB RAI ML103000105 sent to DORL a a i

334 7 7 FSAR Figure 7A-3 Mechanical Flow and Control Diagram Responder: Stockton 313. Y Closed Closed RAI not required. N/A RAI not required because the figure is

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335 7.6.1 7.6.7 LPMS: Reference to OI-331, sub item 2. Responder: WEC 314. Y Closed Closed RAI# 1, EICB letter TVA letter, dated We need to confirm when MEEB when S

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336 7.5.2. 7.5 Re: RM-1000 Report 04508905-QR Responder: GA 315. Y Closed Closed S

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337 7.5.2. 7.5 Re: RM-1000 Report 04508905-QR Responder: GA 316. Y Closed Closed S

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338 7.5.2. 7.5 In page 3-15 and appendix B of Qualification Test Report 04508905-QR, Qualification Test Report for RM-1000 317. Y Closed Closed RAI #4 letter dated FSAR amend 103 Note: Item to be added to Section 3.10 S

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339 7.5.2. 7.5 In the Qualification Test Report 04508905-QR, the licensee As agreed to with the reviewer, Attachment 1 contains the 318. Y Closed Closed RAI #5 letter dated FSAR amend 103 Note: Item to be added to Section 3.10 S

i 340 7.5.2. 7.5 Provide test result curves for all EMI/RFI tests listed in Table 3.2.3 Responder: GA 2. N Open Open-NRC Review 3 (page 3-8) of the Qualification Test Report 04508905-QR. In Due 4/30/11 addition, please provide the standards or the guidance documents The following responses are based on e-mail: GA-ESI to Provide the qual reports used as the source for ENV 50140, ENV 55011 Class A, and EN Bechtel, dated December 8, 2010 (Reference 20), Response included in letter dated by 1/28/11 per TVA 55022 Class B. 12/22/10. letter of 12/22/10.

EICB (Singh)

(1) The EMI/RFI tests described in Table 3-2 are based on GA-ESI report 04509050 and are summarized in GA- Due: 2/25/11 ESI report 04508905-QR. The independent laboratory Clarification Needed:

report, with curves, is part of GA-ESI report 04509050. Per 2/25/11 response Subsequent to issuing GA-ESI report 04508905-QR TVA document SS-additional EMC testing was performed in accordance E18.14.01, Rev. 3 is with TVA specific requirements. The results of the the source document subsequent EMC testing are reported in GA-ESI report for all testing. Please

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N 04038800. GA-ESI report 04038800 includes the test provide this document curves and the report is used as the basis for EMC for staff review. In qualification of the Upper and Lower Inside addition British Containment Post Accident Radiation Monitors (2-RE- Standards (e.g. ENV 90-271 through -274). The results of the testing and 50140) have been cited the acceptability of the RM-1000 monitors for use at in testing which are not WBN Unit 2 are addressed in GA-ESI report per RG 1.180, R1. TVA 04038903-7SP. This report will be submitted no later to describe compliance than January 28, 2010. of SS-E18-14.01 to RG 1.180 with justification (2) ENV 50140, EN 55011, and EN 55022 are British for deviations. No test Standard Institution (BSI) publications concerning curves have been equipment electromagnetic and radio frequency provided in any of the performance. The standard titles are shown below: reports. As a minimum

a. ENV 50140 - Electromagnetic Compatibility - TVA to provide a few Basic Immunity Standard - Radiated Radio- sample test curves or Frequency Electromagnetic Field - Immunity Test justify not supplying

b. EN 55011 - Industrial, scientific and medical them.

equipment - Radio-frequency disturbance characteristics - Limits and methods of No EMI/RFI curves measurement have been provided as

c. EN 55022 - Information technology equipment - yet. TVA to provide Radio disturbance characteristics - Limits and representative curves.

methods of measurement NRC review proceeding TVA Response to Follow-up NRC Request: in parallel.

The total EMI/RFI testing of the RM-1000 and current-to- NRC current review frequency converter is documented in the following reports: guidance is based on compliance with RG Attachment 5 contains the proprietary version of 1.180 or equal with General Atomics Electronic Systems 04508905-1SP, justification for Qualification Test Report Supplement, RM-1000 variations. TVA is Upgrade. See sections 5.1.1, 5.1.2 and 5.1.4 for requested to provide EMI/RFI. the roadmap for Attachment 7 contains the proprietary version of compliance to RG General Atomics Electronic Systems 04038903-7SP, 1.180 with justifications Qualification Basis for 04034101 (2-RE-90-271, 272, for any deviations.

273 & 274). See section 5 for EMC qualification basis. Simply following TVA Attachment 8 contains the proprietary version of standard specification General Atomics Electronic Systems 04038903-QSR, SS E18.14.01, Rev. 3 is Qualification Summary Report for Watts Bar Nuclear not sufficient.

Plant Unit 2 Replacement Radiation Monitors. See section 3.4 for electromagnetic compatibility qualification requirements.

Attachment 23 contains the proprietary version of General Atomics Electronic Systems 04508905-QR, Qualification Test Report for RM-1000 Processor Module and Current-To-Frequency Converter. See sections 3.2.1 through 3.2.5 and 6.2 for EMI/RFI.

Attachments 7 and 8 document the EMI/RFI testing specific to the WBN Unit 2 RM-1000 monitors and current-to-frequency converters.

TVA Response to Second Follow-up NRC Request:

GA-ESI qualification report 04038903-7SP, Qualification

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N Basis for 04034101 (2-RE-90-271, 272, 273 & 274) Revision C dated February 22, 2011(Proprietary), submitted on TVA to NRC letter dated February 25, 2011 (Reference 2),

section 5.1 states:

GA-ESI has performed the tests on a 2 channel RM-1000 radiation monitoring system the configuration of which is shown in GA-ESI drawing 04509000 System Installation Configuration, RFI/EMI Test, RM-1000 the results of which are issued in GA-ESI report 04038800, RM-1000 EMC Test Report, TVA and 04509050, RM-1000 EMC Test Report.

The equipment tested used an RM-1000 microprocessor radiation monitor Display/Control NIM Bin Assembly, an I-F Converter, line filter, and an RD-23 detector. The monitor system being qualified is the same as the monitor system tested and includes ECO-17656 modifications to ensure EMC compliance.

Attachment 1 contains the TVA Browns Ferry High Range Radiation Monitor which contains the requested EMI test curves. We have confirmed that the GA-ESI reports (04509050, RM-1000 EMC Test Report, dated 4/22/03 and 04038800, RM-1000 EMC Test Report, dated 11/11/99) included in the TVA report are applicable to the WBN Unit 2 RM-1000 monitors. The non-proprietary versions and affidavit for withholding of GA-ESI reports (04509050 and 04038800) will be submitted within two weeks of receipt from GA-ESI.

GA-ESI qualification report 04038903-7SP, section 5, provides a detailed discussion of the test results in GA-ESi report 04509050.

TVA Response to Follow-up NRC Request Attachment 1 provides a comparision of the TVA EMC specification SS E18.14.01, Revision 3 requirements to RG 1.180 requirements.

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341 7.5.2. 7.5 FSAR Tables 3.10 list seismically qualified equipment. However, A review of WBN Unit 2 FSAR amendment 102 chapters 319. Y Closed Closed RAI #1 letter dated FSAR amend 103 S

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342 7.5.2. 7.5 Please confirm that RM-1000 monitors and the associated The RM-1000 containment high range radiation monitors are 320. Y Closed Closed S

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343 7.5.2. 7.5 ( ( Seismic RRS in the 04508905-QR report Figures 3-2 and 3-3 (1) The cause of the difference between the RRS and TRS 321. Y Closed Closed G S i 322. Y 344 7.6.6  ? Unit 1 SE discussed in Section 7.6.5, Valve Power Lockout. (a) In accordance with0PDP-6, Locked Valve/Breaker Close Closed Close based on TVA letter dated

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345 7.5.2. 7.5 Provide the normal temperatures and expected periods of high/low RM-1000 in a NIM Bin was Tested at 39°F for 72 Hrs and 323. Y Closed Closed Response S

i 346 7.5.2. 7.5 TVA has previously stated in response to open item 319 that RM- Document 04507007-1TR is the RM-1000 System 3. N Open Open-NRC Reviewl 3 1000 System Verification Test Results report, 04507007-1TR is not Verification Test Results. 04038903-QSR, Qualification Due 4/15/11 applicable to WBN-2. However, TVA has not provided a WBN-2 Summary Report for Watts Bar Nuclear Plant Unit 2 Due: 2/25/11 specific test results report. Please identify and provide the Replacement Radiation Monitors (Attachment 8) and and appropriate test results reports to complete the review. 04038903-7SP, Qualification Basis for 04034101 (2-RE The proposed response EICB (Singh) 271, 272, 273 & 274) (Attachment 7) are the Watts Bar Unit appears to be 2 equipment specific qualification reports. conflicting with the proposed response for TVA Response to Follow up NRC Request: OI-351 regarding not submitting the Report 04507007-1TR RM-1000 System Verification Test 04508905-QR report.

Results is applicable to the WBN Unit 2 monitors. The TVA to re-assess applicability is that 04507007-1TR includes all test cases proposed response for

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N called out in the 04507006 RM-1000 System Test both OIs.

Procedure Specification and contains evidence that the V&V tests were performed with version 1.0 software code. The TVA to re-evaluate verification report for version 1.1 software is document previous responses to 04508005 RM-1000 Software Version 1.1 Software OI-316 and OI-319 Verification Report. Document 04508006 RM-1000 Version which have conflicting 1.2 Software Verification and Validation Report shows that responses regarding the required test was completed to validated version 1.2 the applicability of code for the RM-1000. 04507007-1TR.

The Engineering reviewed and approved proprietary versions NRC Follow-up of 04507007-1TR, 04508005 and 04508006 will be question submitted within two weeks of receipt from GA-ESI. The unreviewed proprietary versions, non-proprietary versions Report 04507007-1TR, and affidavit for withholding were submitted on TVA to NRC 1999 states in the Test letter July 15, 2010 (Reference 3). Summary that Initially the testing was done TVA Response to Follow up NRC Request using the SE safety related production GA-ESI has a single process for buying material, assembling modules that had and testing modules. The same process is used for any part undergone software number, safety related or not so they can avoid having to V&V testing. The store the same part number in two different locations and majority of the testing avoid the possibility of mixing them up. Therefore, the was done by using two Sorrento Electronics safety-related production modules and of the Sequoyah non-the Sequoyah non-safety-related modules are physically safety related identical. Based on the above the report is acceptable. production modules for the TVA contract, substituted for the SE modules. Since the report is based on primarily non safety related components TVA to clarify and justify why NRC should accept this test report for safety related V&V testing.

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347 7.5.2. 7.5 Qualification report 04508905-1SP does not address EMI/RFI Qualification report 04038903-7SP, Qualification Basis for 324. Y Closed Closed S

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348 7.5.2. 7.5 Qualification report 04508905-2SP does not address EMI/RFI Qualification report 04038903-7SP, Qualification Basis for 325. Y Closed Closed S

i 349 7.5.2. 7.5 Radiation testing was not considered in any of the test reports as The design criteria provides the criteria for determining what 1. Y Open Open-Mech Eng to 3 all the equipment has been assumed to be located in nuclear is a mild environment at WBN Unit 2. Calculation revise calculation power plant areas with mild environments and radiation dosages WBNAPS4004 Summary of Mild Environment Conditions for less than 1 x 103 rads for total integrated dose (TID). However, Watts Bar Nuclear Plant provides the actual values for each Due: 2/25/11 the radiation monitors and the I/F converters are located in the area of the plant. In accordance with Table 1, the Control main control room which is defined as mild environment. For Room has a 40 year maximum TID of 3.5x102 RAD and a TVA to provide the WBN-2 mild environment is defined as room or building zone maximum integrated accident dose of 710.5 RAD for a assessment document EICB (Singh) where (1) the temperature, pressure, or relative humidity resulting maximum TID of 1060.5 RAD. or a summary of the from the direct effects of a design basis event (DBE) (e.g., document with the temperature rise due to steam release) are no more severe than The accident dose of 710.5 RAD is the dose for a 100 day reference to the those which would occur during an abnormal plant operational LOCA at the surface of the HEPA filter in the Mechanical appropriate condition, (2) the temperature will not exceed 130ºF due to indirect Equipment Room. This is documented in TVA calculation document/documents.

effects of a DBE, (3) the event radiation dose is less than or equal WBNTSR-005, Dose Due to the Control Building to 1 x 104 rads, and (4) the total event plus the 40 year TID (total Emergency Air Cleanup Filters Revision 3. However, on February 25, 2011 integrated dose) is less than or equal to 5 x 104 rads (reference page 25 of WBNTSR-005, the shine from this source into the response is acceptable.

WB-DC-40-54). TVA to address lack of radiation qualification for control room is negligible and is not considered in the dose Item will be tracked as WBN-2. calculation for the control room. a confirmatory item in

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N the SE. TVA to provide Calculation WBNAPS3-126, EQ Dose in the U1/U2 Auxiliary calculation or summary Instrument Rooms and the Computer Room in the Control of calculation when Building Revision 0 documents the environmental complete.

qualification (EQ) radiation dose in the control building. A review of this document by the TVA radiation protection engineer determined that the TID including the normal and accident dose values for the control room is less than 1x103 RAD. Calculation WBNAPS3-126, will be revised to include the control room by July 1, 2011. Since the control room TID has been determined to be less than 1x103 RAD, radiation qualification of the RM-1000.

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350 7.5.2. 7.5 The seismic required response spectra (RRS) is shown in Figures The RM-1000 was seismically tested in a NIM Bin and the 326. Y Closed Closed RAI # 9, letter FSAR amend 103 Note: Item to be added to Section 3.10 S

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351 7.5.2. 7.5 The replacement schedule for the components that have a The replacement schedules stated in 04508905-1SP, 327. Y Closed Closed S

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352 7.5.2. 7.5 Please clarify how many RM-1000 radiation monitors are being The total number of RM-1000 units procured under MR 328. Y Closed Closed S

i 353 7.5.2. 7.5 Please provide a summary of the [manufacturers] commercial GA-ESI submitted their commercial grade dedication 4. N Open Open-NRC Review 3 dedication plan for radiation monitors with references to the procedure (OP-7.3-240, Safety-Related Commercial Grade Due 4/15/11 guidance document that it follows. Also please include different Item Parts Acceptance, Revision H) to engineering for TVA to note that staff facets (e.g. receiving, inspection, testing etc.) of the plan. review. Engineering review of the procedure found that the has written a safety procedure, Section 5, did not require multiple dedication evaluation and methods for complex CGI or CGI used in digital safety accepted EPRI TR-systems. As a result, it was determined that the GA-ESI 106439 (1996) as an program did not meet the requirements of NUREG-800, acceptable method of Section 7.0A, Revision 5. addressing commercial dedication. EPRI NP-A discussion with GA-ESI found that while not required by 5652 must be used in procedure, GA-ESI does perform vendor surveys as required conjunction with the by Method 2 of NP-5652. The surveys are done based on additional guidance in prudent business practices. Based on this discussion, GA- EPRI TR-106439 for ESI agreed to review the CGI used in the WBN Unit 2 digital commercial dedication safety-related monitors to determine if they had been processes e.g. EPRI dedicated by more than one method. NP-6404, EPRI TR-102260, GL 89-02, and The review of the CGI used in the WBN Unit 2 digital safety- GL-91-05 per Section EICB (Singh) related monitors determined that all CGI had been dedicated 3.3 of EPRI TR-using Method 1 of EPRI guideline NP-5652. However, in the 106439.

sample of items reviewed, there were CGI that were dedicated using a single method. Based on the results of the Follow-up engineering procedure review and the results of the GA-ESI clarification:

CGI review, Service Request 346896 was initiated to document the condition and to place the monitors in TVA to review and Conditional Release status. satisfy itself with the procedure and provide Based on the results of the previous reviews, GA-ESI agreed NRC a copy of the to the following plan of action to resolve the CGD issue: procedure for review.

In addition, TVA and

1. GA-ESI shall revise its commercial grade dedication GA to provide procedure (OP-7.3-240) to require multiple dedication information as to what methods be utilized for complex commercial grade additional measures items and commercial grade items for digital safety were taken by GA with class systems. The evidence that this has been available completed will be provided to TVA by April 15, 2011. documentation to prove that more than one Specifically, Method 1 and at least one additional method was followed method from the list below will be used to ensure that for commercial the CGD procedure complies with the current SRP. dedication.

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N Method 1 - Special Tests and Inspections Method 2 - Commercial Grade Survey of Supplier Method 3 - Source Verification Method 4 - Acceptable Supplier/Item Performance Record

2. GA-ESI shall take actions consistent with the revised operating procedure to address the CGls used in the WBN Unit 2 safety-related digital monitors. Evidence that those actions have been completed will be provided no later than September 1, 2011.

Based on the above action plan, TVA will resolve the issues with the GA-ESI CGD of CGI used in the WBN Unit 2 monitors and submit documentation of the resolution to the NRC by:

GA-ESI procedure OP-7.3-240 revision: April 30, 2011 Resolution of CGD of CGI used in WBN Unit 2 RM-1000 monitors: September 15, 2011 TVA Response to Follow up NRC Request (1) TVA has reviewed the revised GA-ESI procedure and determined that changes bring the CGD program into conformance with the requirements of NUREG-800, Section 7.0A, Revision 5 EPRI topical report TR-106439 and EPRI guideline NP-5652. Attachment 2 contains GA-ESI procedure OP-7.3-240 Safety-Related Commercial Grade Item Parts Acceptance, Revision I.

(2) As stated in TVA to NRC letter dated April 15, 2011(Reference 1), Attachment 4, List of New Commitment Items, item 2, the due date for resolution of this issue is September 15, 2011.

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354 7.5.2. 7.5 RG 1.180 endorsed the guidance of IEEE-1050-1996 with (1) The WBN Unit 2 grounding system design is in 329. Y Closed Closed The grounding specification used by S

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355 7.5.2. 7.5 Staff has not found the stated exclusion zone for EMI/RFI Cautions and distance limitations for WBN Unit 1 legacy 330. Y Closed Closed S

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356 7.5.2. 7.5 The attachment number refers to your February 25, 2011 letter. The loss of the RM-3 output (current to frequency (I/F) 331. Y Closed Closed Closed by TVA S

i 357 7.5.2. 7.5 In Attachment 5, Qualification Test Report Supplement, RM-1000 Attachment 8 contains GA-ESI qualification report 28. Y Closed Closed Closed by TVA 3 (04508905-1SP), Attachment 6, Qualification Test Report 04508903-1TR Seismic Qualification Test Results RM-1000 submittal of Supplement, I-F Converter Upgrade (04508905-2SP), and and Current-to Frequency (I/F) Converter original release, 3/31/2011, Att. 8.

EICB (Singh)

Attachment 23, Qualification Test Report for RM-1000 Processor dated April 1999.

Module and Current-To-Frequency Converter (04508905-QR), the applicant made a statement that the results for these tests are provided in SE document 04508903-1TR. Please provide SE document 04508903-1TR for the staff to review. IF this report has been submitted earlier then please advise us the letter number and date by which it was submitted.

358 7.5.2. 7.5 The attachment numbers refer to your February 25, 2011 letter. In An incomplete response was inadvertently submitted in TVA 29. Y Closed Closed Closed by TVA 3 Attachment 2, Wyle Test Report 41991 Safety Shutdown to NRC letter dated March 31, 2011 (Reference 1). The Due 4/15/11 letter dated EICB (Singh)

Earthquake (SSE) Test Response Spectra (TRS) Plots all five (5) following response supersedes the previous response in its 4/15/2011, Item 5.

pages, in Attachment 5, General Atomics Electronic Systems entirety.

04508905-1SP, page 5-5, Figure 5-2, and in Attachment 23, Qualification Test Report for RM-1000 Processor Module and 1. Attachment 2, Wyle Test Report 41991 Safety Current-To-Frequency Converter (04508905-QR), page 4-25, Shutdown Earthquake (SSE) Test Response Spectra Figure 4-5 X-Axis SSE Test Response Spectra (TRS) versus (TRS) Plots all five (5) pages. These five Test

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N Required Response Spectra (RRS), it shows that the TRS were Response Spectra (TRS) Plots versus Required below the RRS at various frequency (5% Damping). Please provide Response Spectra (RRS) show that the TRS were an explanation regarding why this is acceptable. below the RRS at various frequency (5% Damping).

Please provide an explanation regarding why this is acceptable.

Attachment 2 of this letter provides five pages from the first seismic test (Wyle Test report 41991) from GA-ESI report 04508903-1TR, submitted in response to OI-357 on TVA to NRC letter dated March 31, 2011 (Reference 1). The following discussion refers to these pages.

Wyle test report 41991 provided the seismic test results for two RM-1000 monitors (one area monitor and one process monitor) and one I/F converter. During the test, the RM-1000 monitor configured as an area monitor was damaged due to the test table impacting its mechanical stop (see page 4 of Wyle Test Report 41991 attached).

This first test was completed for the RM-1000 monitor configured as a process monitor and the I/F converter.

A second seismic test for the RM-1000 monitor configured as an area monitor and two I/F converters (Wyle Test Report 41991-1) is also included in 04508903-1TR. The RM-1000 monitor used in this second test was the same RM-1000 process monitor used in the first seismic test reconfigured (switch in application type 1 mode) as an area monitor. One of the I/F converters tested was the same I/F converter tested in the first seismic test. This second test was performed to complete the testing which could not be performed during the first seismic test due to the damage to the RM-1000 area monitor and the loss of the high voltage power supply to the I/F converter that occurred during the first seismic test. None of the TRS plots in this second seismic test report 41991-1 were below the RRS.

General Atomics Qualification Test Report for RM-1000 Processor Module and Current-To-Frequency Converter (04508905-QR) refers to both Wyle Reports 41991 and 41991-1 included in report 04508903-1TR. It is recognized that the five TRS Plots versus the RRS where the TRS were below the RRS is an exceedance that must be justified. From Wyle report 41991 it can be determined that these five TRS versus RRS plots are for the seismic response in the front to back panel direction.

The RRS used in the Wyle test reports envelopes the TVA standard RRS shown in Fig 3.1 of TVA Standard Specification CEB-SS-5.10, For Seismic Qualification of Electrical, Mechanical and I&C Devices, submitted on TVA to NRC letter dated February 25, 2011, (Reference

2) below 33 Hz. This TVA standard RRS conservatively envelopes the in panel seismic demand for most TVA applications. For specific cases when required the actual in panel RRS can be developed. Calculation WCG-ACQ-0766, In-Cabinet Required Response Spectra for RM-1000 Radiation Monitors in MCR Panel 2-M-30, Revision 0, (Attachment 3) has been issued to

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Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N generate the 5% RRS for these safety related RM-1000 monitors, I/F converters and NIM bins for the WBN2 panel (2-M-30) where they will be installed. As can be seen from the RRS plots in calculation WCG-ACQ-0766 the front to back 5% RRS broad band peak is 9.76 g which is lower than the front to back 5% TRS shown in the subject five (5) plots.

2. Attachment 5, General Atomics Electronic Systems 04508905-1SP, page 5-5, Figure 5-2. The Figure 5-2 Test Response Spectra (TRS) Plots versus Required Response Spectra (RRS) shows the TRS to be below the RRS at various frequency (5% Damping). Please provide an explanation regarding why this is acceptable.

The display module for the RM-1000 monitors procured for WBN2 differs from that used in previous RM-1000 qualification tests. The seismic qualification basis for the WBN2 display module is established by similarity to the display module used in RM-2000 monitor qualification tests shown on page 5-4 and 5-5 of 04508905-1SP (pages attached). The basis for the similarity discussion is provided on pages 5-2 and 5-3 of 04508905-1SP. The TRS non-exceedance at approximately 6-7 Hz shown on page 5-5 is not applicable to WBN2 since the RRS shown on that figure is not used for WBN2 qualification. The correct comparison for WBN2 would be the TVA standard RRS shown in Fig 3.1 of CEB-SS-5.10 for 5% damping. The TRS shown on page 5-5 meets or exceeds all points of the TVA standard RRS. Therefore, the seismic qualification of the WBN2 display module is provided by pages 5-4 and 5-5 for which the TRS completely envelopes the TVA standard RRS shown in Fig 3.1 of CEB-SS-5.10. Additionally, as previously stated, Calculation WCG-ACQ-0766 was issued to generate the 5% RRS for the WBN2 panel (2-M-30) where the safety related RM-1000 monitors will be installed. The vertical 5% RRS plot in calculation WCG-ACQ-0766 broad band peak is 4.2 g which is lower than the 5% TRS shown in 04508905-1SP, page 5-5, Figure 5-2.

3. Attachment 23, Qualification Test Report for RM-1000 Processor Module and Current-To-Frequency Converter (04508905-QR), page 4-25, Figure 4-5 X-Axis SSE Test Response Spectra (TRS) versus Required Response Spectra (RRS) shows the TRS to be below the RRS at various frequency (5% Damping). Please provide an explanation regarding why this is acceptable.

This Figure 4-5 is one of the same figures identified in item 1. See item 1. for the appropriate discussion.

359 7.7.1. Was the CERPI system developed under a 10 CFR 50 Appendix B CERPI is a non-safety related system. Therefore, 10 CFR 30. Open Open-NRC Review 1 EICB compliant program? 50 Appendix B is not applicable. Due 4/15/11 (Carte) 360 CB (G In order for staff to review the acceptability of the Incore (a) The Watts Bar Unit 2 In-core Instrumentation System 31. Open Open-NRC Review ar (IIS) replaces all of the functionality provided by the Due 4/15/11

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N Instrumentation System (IIS): Movable Incore Detector System (MIDS) used at Watts Bar Unit 1. The IIS to be used at Watts Bar Unit 2 is a (a) Provide a brief system description of IIS and its regulatory Westinghouse IN-Core Information, Surveillance, and compliance. In your discussion include the discussion of Engineering (WINCISE) System that is functionally WINCISE and BEACON system which are part of the IIS. described in Section 7.7.1.9 of the Watts Bar Unit 2 Also provide the differences between the system used at Final Safety Analysis Report (FSAR). The WINCISE-WBN Unit vs. at Unit 2, e.g. Movable vs. fixed IIS. For style IIS used at Watts Bar Unit 2 is essentially the same WINCISE provide the basis for acceptance. as the in-core power distribution measurement systems used at most Combustion Engineering style of operating (b) If this system has been accepted by the staff previously at reactors that use a type of in-core neutron sensors some other plant then provide the reference to that SE. commonly called "Fixed In-core Detectors (FID)." The Identify the document that describes the functionally of the IIS Watts Bar Unit 2 IIS is functionally identical to the IIS that is identical to the IIS used in the Westinghouse AP1000 used in the Westinghouse 1AP1000' reactor design.

reactor design. The Watts Bar Unit 2 IIS includes the FIDs, Core Exit Thermocouples (CET), FID and CET signal cables, the (c) If this has not been evaluated by the staff previously, then FID signal processing hardware, and the FID signal provide the effect of CCF of this system and its effect on processing software. This hardware and software is safety system or chapter 15 analysis. required to provide the measured signals to the associated BEACON System to periodically determine (d) Does this have any interconnection with safety system?

whether the reactor is operating within design core (e) For BEACON provide the acceptability of this system. I peaking factor limits. A detailed description of the Watts believe that this system was accepted at WBN Unit 1. If that Bar Unit 2 IIS hardware is provided in the document is the case then provide the reference to that review. Also titled, Westinghouse Incore Information Surveillance &

provide any differences of this system to the one at WBN Unit Engineering (WINCISE) System Technical Manual, NO-1 system. WBT-002, Revision 0 supplied by Westinghouse to TVA in September of 2010.

(f) Please provide detailed information about the In-core Instrumentation System (IIS) to be installed in Watts Bar Unit The qualification for the BEACON System to perform the

2. This information should indicate how the system meets the core power distribution measurement function using the requirements established in the Standard Review Plan, Watts Bar Unit 2 WINCISE style IIS instrumentation is including system concept, system requirements, system documented in the generic NRC Safety Evaluation design, and system development, as well as the regulatory Reports (SER) provided with WCAP-12472-P-A, requirements identified for Watts Bar Unit 2. BEACON Core Monitoring and Operations Support System, Addendum I-A and Addendum 2-A.

(g) Please provide a description on how the system will meet the regulatory requirements identified in Table 7.1-1 of the SRP, (b) The WINCISE style IIS used at Watts Bar Unit 2 is applicable to the IIS. essentially the same as the in-core power distribution measurement systems used at all Combustion (h) Provide detailed description about the connection and Engineering style of operating reactors that use a type communication for the signals to be transmitted from the Core of in-core neutron sensors commonly called "Fixed In-Exit Thermocouples to the Common Q Post Accident core Detectors (FID)." The Watts Bar Unit 2 IIS is Monitoring System (PAMS). Also, describe how this functionally identical to the IIS described in the communication will meet the NRC communications regulatory Westinghouse AP1000 design documents and approved requirements. in the Westinghouse AP1000 SER section 7.5.7 as documented in Westinghouse Letter WBT-D-____ ,

(i) Please provide the following Westinghouse document: NO- title, dated April 14, 2011 (Attachment 7)

WBT-002, Westinghouse Incore Information Surveillance &

Engineering (WINCISE') System Technical Manual. (c) The digital in-core flux monitoring portion of the IIS is non-safety-related. As such, CCF analysis is not (j) Provide the failure modes and effects analyses for the IIS, required by NUREG-800 section 7.0-A. The IIS has no documented in calculation WBNOSG4220 WB Incore impact on any Safety Analysis documented in Chapter Instrumentation System Failure Modes and Effects Analyses, 15 of the Watts Bar Unit 2 FSAR.

and demonstrate how these potential failures do not adversely affect reactor safety. (d) The IIS includes the 1E qualified CET and CET analog signal cables required to allow the CETs to be directly connected to the Common Q Post Accident Monitoring System (PAMS). There is no other interface to safety 1

AP-1000 is a registered trademark of the Westinghouse Electric Company LLC

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N systems. The CET signals are electrically isolated from signals output from the non-1E FID signals and signal processing electronics.

(e) The qualification for the BEACON System to perform the core power distribution measurement function using the Watts Bar Unit 2 WINCISE style IIS instrumentation is documented in the generic NRC Safety Evaluation Reports (SER) provided with WCAP-12472-P-A. This WCAP generically approves the BEACON System for use at PWR reactors including those using Movable In-core Detector Systems (MIDS) like Watts Bar Unit 1 and, through Addendum I-A and 2-A, those like Watts Bar Unit 2 using a WINCISE type fixed in-core instrumentation system.

The specific differences between the Unit 1 and Unit 2 core power distribution measurement systems are too numerous to simply list. A detailed description of the Watts Bar Unit 2 IIS hardware is provided in section 2 of the WINCISE System Technical Manual NO-WBT-002 (Attachment 5).

(f) NUREG-800 section 7.0-A, Table 7.0-A-1. Review Topics for Various Systems, requires only a limited review for non-safety related system discussed in NUREG-800 section 7.7 Control. WINCISE is a non-safety-related, indication only system within the scope of NUREG-800 section 7.7. The limited review required is:

Control systems receive a limited review as necessary to confirm that control system failures cannot have an adverse effect on safety system functions and will not pose frequent challenges to the safety systems. The only WINCISE interface with a safety-related system is the CET in the IITA which is hardwired to the Common Q PAMS system. See item (g) below for a description of the qualification process that demonstrates that failures in the balance of the WINCISE system do not impact the performance of the safety-related CET function.

(g) With the exception of the IITA hardware, WINCISE is a non-safety-related indication system. The IITA assemblies meet the following criteria:

i. R.G. 1.26 Rev. 3 Quality Group Classification and Standards for Water, Steam and Radioactive Waste Components of Nuclear Power Plants ii. R.G. 1.38 Rev. 2 Quality Assurance Requirements for Packaging, Shipping, Receiving, Storage and Handling of Items for Water-Cooled Nuclear Power Plants iii. R.G. 1.71 Rev. 0 Welder Qualification for Areas of Limited Accessibility iv. R.G. 8.8 Rev. 3 Information Relevant to Ensuring that Occupational Radiation Exposure at Nuclear Power Stations will be As Low As Reasonably

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N Achievable

v. R.G. 8.19 Rev. 1 Occupational Radiation Dose Assessment in Light-Water Reactor Plants Design State Man-Rem Estimates vi. R.G. 1.84 Rev. 27 Design and Fabrication Code Case Acceptability - ASME Section III, Division 1R.G. 1.85 Rev. 27 Material Code Case Acceptability - ASME Section III, Division 1 1.1.4 The design, materials, fabrication, inspection, and testing of the IITA shall be in accordance with the ASME Boiler and Pressure Vessel Code,Section III Class 3, and all applicable Code Cases as proposed by the supplier and approved by Westinghouse. Materials shall be in accordance with this specification.

1.1.5 Component Classification - The IITA is classified as an instrument tube, so it is not under the jurisdiction of the ASME per NCA-1130(c). However, the design, primary pressure boundary materials, and NDE Requirements are per ASME Section III, Class 3 and the IITA is classified as Safety Class 2.

The non-safety-related WINCISE Signal Processing System Cabinets are located inside containment and are therefore required to not impact the function of any safety-related equipment. To meet this requirement the cabinets were tested and passed based on the following criteria:

i. In accordance with WB-DC-40-31.2, Watts Bar Nuclear Plant Seismic Qualification of Category 1 Fluid System Components and Electrical or Mechanical Equipment, Revision 8, November 2000 and U.S. N.R.C. Regulatory Guide 1.100, Seismic Qualification of Electrical and Mechanical Equipment for Nuclear Power Plants, Revision 2, June 1988, the equipment must withstand five OBEs and one SSE without creating missiles. Testing was done in accordance with:

(1) IEEE Std 344-1975, IEEE Recommended Practice for Seismic Qualification of Class 1E Equipment for Nuclear Power Generating Stations, Institute of Electrical and Electronics Engineers, Inc., 1975 (2) IEEE Std 344-1987, IEEE Recommended Practice for Seismic Qualification of Class 1E Equipment for Nuclear Power Generating Stations, Institute of Electrical and Electronics Engineers, Inc., 1987 ii. In accordance with U.S NRC Regulatory Guide 1.180

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N Guidelines for Evaluating Electromagnetic and Radio-Frequency Interference in Safety-Related Instrumentation and Control Systems, Revision 1, October 2003 and IEEE 323-1983 IEEE Standard for Qualifying Class 1E Equipment for Nuclear Power Generator Stations, Institute of Electrical and Electronics Engineers, Inc., 1983, the equipment must not generate spurious electromagnetic emissions or suffer some common mode failure due to its operating environment that could directly or indirectly impact the operation of safety-related equipment (1) IEC 61000-6-2, Electromagnetic compatibility (EMC). Generic Standards. Immunity for Industrial Environments, 2005 (2) MIL-STD-461E, Requirements for the control of Electromagnetic interference Characteristics of Subsystems and Equipment, August 1999 (3) IEC 61000-4-4, Electromagnetic compatibility (EMC) - Part 4-4: Testing and Measurement Techniques - Electrical Fast Transient/Burst Immunity Test, 1995 (4) IEC 61000-4-12, Electromagnetic Compatibility (EMC) - Part 4: Testing and Measurement Techniques, Section 12:

Oscillatory Waves Immunity Tests, 1996 iii. In order to demonstrate that a maximum expected surge of 600 volts on the power input to the cabinets would not propagate and damage the CET cables in the IITA, the cabinets were surge tested in accordance with IEC 61000-4-5, Electromagnetic compatibility (EMC) - Part 4-5: Testing and Measurement Techniques - Surge Immunity Test, 1995.

(h) The cables for the CETs separate from the FID cables at the seal table. The CETs are connected directly to the Common Q PAMS cabinet. The FIDs are connected directly to the in-containment signal processing system cabinets.

(i) Attachment 5 is the proprietary section 2 Equipment Description of NO-WBT-002, Westinghouse Incore Information Surveillance & Engineering (WINCISE')

System Technical Manual. This is strictly a proprietary document and a non-proprietary version will not be submitted. An affidavit for withholding will be submitted within two weeks of receipt from Westinghouse.

(j) Attachment 6 is the proprietary WINCISE FMEA. A non-proprietary version and affidavit for withholding will be provided within two weeks of receipt from Westinghouse.

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N Westinghouse is available to discuss any specific questions on the methodology and hardware used in the Watts Bar Unit 2 IIS that the NRC believes are not well defined in the documents listed above.

361 7.7.1. Was the Foxboro IA system developed under a 10 CFR 50 Foxboro I/A is a non-safety related system. Therefore, 10 32. Open Open-NRC Review 1 EICB Appendix B compliant program? CFR 50 Appendix B is not applicable. Due 4/15/11 (Carte) 362 7.6.1 7.6.7 OI #331 requested TVA to provide information regarding how the TVA committed to provide a letter on the docket (targeted is 5. Open-TVA Open-Loose Parts Monitoring System (LPMS) in-containment for 4/30/2011) stating why the the in-containment equipment TVA/Bechtel/NRC components (e.g., Accelerometer ( including the integral insulated has been qualified for vibration per RG 1.133, Rev. 1. NRC Update (WEK)--On March 27, Review of Partial hardline cable), Softline cable, and Remote Charge Preamplifiers) 2011 TVA provided a document Response.

were qualified for vibration as addressed in regulatory position (1) Attachment 4 contains Westinghouse document WBT WBT-D-2782 in response to this C.1.g of RG 1.133, Rev. 1. TVA responded by stating that TVA DMIMS-DX' Seismic Evaluation of the Digital Metal OI. This document provides the in-has reviewed the information provided by Westinghouse describing Impact Monitoring System (DMIMS-DX') for Watts Bar containment LPMS equipment how the Loose Part Monitoring System (LPMS) sensor is qualified Unit 2, EQ-QR-33-WBT, Revision 0 (proprietary). The qualification specification(s) and for normal operating conditions provided in Westinghouse letter non-proprietary version and affidavit for withholding will indicates that the normal WBT-D-2782, dated December 17, 2010 (Reference 11) as be submitted within two weeks of receipt from environmental conditions for a addressed in regulatory position C.1.g of Reg. Guide 1.133 and Westinghouse. Westinghouse containment are found it acceptable. Vibration qualification is not applicable to the reported in Tables 6-1 and 6-2 from softline cable. Due to the installation location (junction boxes Attachment 5 contains Westinghouse non-proprietary WCAP 8587 Rev. 6, "Methodology mounted to the shield or fan room walls) and previous seismic white paper WBT-D-2782, Westinghouse DMIMS-DX for Qualifying Westinghouse WRD qualification, vibration qualification of the charge In-Containment equipment environmental specifications Supplied NSSS Safety Related converter/preamplifier is not required. This completes the Electrical Equipment". These tables response to this item. EQ-EV-71-WBT-P, Revision 1, Environmental are attached.

Evaluation and Operating History of the Westinghouse The EQ specifications are included EICB ( Kemper & Singh)

However, the staff still desires further clarification on this DMIMS-DX Preamplifier and Softline Cable Used at in the document, however, the response. Specifically, please provide a documented basis that Watts Bar 2 dated February 2011 was submitted on documented basis that demonstrates the LPMS in-containment equipment is qualified for TVA to NRC letter dated Februay 25, 2011 (Reference demonstrates the in-containment normal operating conditions (e.g., test results compared to the 4). equipment has been successfully equipment qualification specification), including vibration tested to meet or exceed its EQ qualification. Also, provide justification for why vibration While no specific vibration testing of the accelerometers specification is not included.

qualification if the Remote Charge Preamplifier is not required. was performed, Westinghouse has over 40 years Please include the in-experience in loose parts monitoring technologies. Since containment EQ test results.

1970, Westinghouse has installed over 40 metal impact monitoring systems, many of which use the same in- 5/5/2011 Update (WEK): TVA containment equipment that has been supplied to Watts committed to provide an Bar Unit 2. Table 1 lists a selection of plants in which a analysis, tests, of combined Loose Parts Monitoring System is installed using the analysis and tests for the LPMS same accelerometers as those for Watts Bar Unit 2 in-containment equipment demonstrating the long term operability of the subject to vibration.

accelerometers in environments similar to Watts Bar Unit 2.

(2) The Remote Charge Preamplifiers are mounted in junction boxes inside containment. The junction boxes are hard mounted either to the crane wall or to a fan room wall. The crane wall and fan room walls are subject to any significant vibration during normal operation.

363 7.5.1. 7.5.2 OI#199 requested TVA to provide information concerning how TVA TVA Procedure SPP-2.6 Computer Software Control has 6. Due 4/30/11 Open-NRC Review EICB (Rahn 1.3 plans to meet regulatory criteria for Quality (10 CFR 50.55a(a)(1)) been superseded by TVA Procedure NPG-SPP-12.7, and associated with the Technical Support Center and Nuclear Data Computer Software Control, Revision 0, dated December 7.9.1 Link. TVA responded in Letter Dated October 5, 2010, Item 63; 17, 2010 (Attachment 3).

and Mossman) however, TVAs response does not address the quality aspects of these system features. A similar question had been asked for To ensure quality, the design, testing, and inspection of all

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N Quality Criteria adherence for the SPDS and the BISI functions of Integrated Computer System (ICS) software including a) the Integrated Computer System. In response to that request SPDS, b) BISI and c) Technical Support Center (TSC) and (same letter) TVA provided a description of TVA procedures, BISI Nuclear Data Link (NDL) functionality is controlled by software development procedures, and various management qualified personnel in accordance with TVA procedure NPG-measures that will be taken to assure high quality in the design, SPP-12.7. The TSC and NDL functions are provided and operation, and maintenance of the SPDS and BISI functions of the performed by the ICS and, in the case of NDL, the Central ICS. Since the TSC and Nuclear Data Link information originates Emergency Control Center (CECC) computers in in the SPDS function of the ICS, are there any aspects of the Chattanooga.

quality measures that apply to the TSC and NDL features developed as part of quality processes for the ICS that are Any changes to ICS software must be documented and applicable to the data communications features? controlled using TVA procedure NPG-SPP-12.7. This includes the a) SPDS, b) BISI and c) TSC and NDL Specifically, what is the scope of TVA Procedure SPP-2.6 functions. The procedure details controls and processes Computer Software Control? How does it apply to the ICS required for the development, modification, and configuration functions of a) SPDS, b) BISI, and c) TSC and NDL functions? management of computer software used to support the Wouldnt there be aspects of the quality procedures that apply to design, operation, modification, and maintenance of TVAs the development, maintenance, and operations of the software nuclear power plants consistent with the Nuclear Quality needed to support the data communications features. Also, what Assurance Plan.

quality measures will be applied to develop, maintain, and operate the hardware that accomplishes the TSC and NDL functions to Controls in NPG-SPP-12.7 guide the development and ensure that these features will be reliable and available when testing of the software changes. Other controls established needed? by this procedure to further maintain quality standards are:

The application custodian implements controls to prevent unauthorized changes to the software.

Changes are made in a non-production environment, and validation testing takes place before the change is installed on the ICS when possible.

Once validation testing begins, the source code is placed under configuration control.

When the modifications are installed on the ICS, an operability test is performed to demonstrate that the software is installed correctly and is functioning correctly in its operating environment.

Documentation related to ICS software changes are QA records.

The software source code is kept in a physically secure, environmentally controlled space to prevent inadvertent changes.

Cyber security considerations are also considered in the storage environment.

The data goes through several validation steps before being presented to the operators.

When redundant sensors are used, the data received by the computer can be processed by software to determine if the quality of one or more points is questionable.

The hardware involved in the TSC and NDL functionality is verified to be operable on a periodic basis.

In the case of the NDL functionality, the ICS transmits the required data to the CECC on a continuous basis. The CECC monitors the status of the ICS data communications and alarms are generated when the link is not active. The Emergency Plan (EP) staff conducts a quarterly test that verifies that NDL data is successfully transmitted from each unit to the NRC.

1.

(

364 7.5.2. 7.5 C On 5/6/2010 (See Open Item No. 81) the NRC Staff requested an TVA Partial Response to NRC Request N Open Open-TVA/WEC/NRC NNC 4/125/2011: See Open Item No.

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N 2 evaluation of the Common Q PAMS against the current staff Due 5/15/11 Review of Partial 81.

position. 2. Table 7.1-1 will be updated to reference IEEE Std 603- Response 1991 for the Common Q PAMS.

By letter dated 2/25/11 (ML110620219), TVA docketed a response:

TVA performed an analysis and concluded that the Common Q TVA has reviewed the requirements of IEEE Std 603-PAMS equipment does not need to meet either IEEE 279-1971 or 1991 for the Sorrento Containment High Range IEEE 603-1991 and so no analysis was performed or provided. Radiation Monitors and determined that IEEE Std 603-1991 is not applicable. IEEE 603-1991 is applicable to However, SRP (NUREG-0800 Rev. 2 dated March 2007) Section actuation systems. While TVA lists the containment 7.7, Information System Important to Safety, specifically identifies high range radiation monitors as RG 1.97 Revision 2 IEEE Std 603-1991 as being applicable to accident monitoring Typa A variables, the classification is not based on the instrumentation. Based upon the review of this item, the staff finds RG 1.97 requirements which states:

the following open items:

1 TVA to demonstrate that the Common Q PAMS meets the Type A, those variables that provide primary applicable regulatory requirements in IEEE Std 603-1991. information needed to permit the control room operating 2 TVA to updated FSAR (Amendment 103) Table 7.1-1 to personnel to take the specified manually controlled reference IEEE Std 603-1991 for WBN2 Common Q PAMS actions for which no automatic control is provided and and Sorento Containment High Radiation Monitors. that are required for safety systems to accomplish their safety functions for design basis accident event.

TVA calculation WBN0SG4047, PAM Type "A NNC 5/4/2011: Please explain why the Variables Determination uses a broader definition. TVA calculation WBN0SG4047, PAM The calculation definition is: Type "A Variables Determination uses a broader definition for Type A The type "A variables will be divided into three groups variables than is in the FSAR based on the parameter's purpose. The groups are: (1) (Amendment 103). Why is this event identification, (2) event recovery to plant definition not in the FSAR?

stabilization, and (3) maintaining the stabilized conditions from event recovery to hot standby.

Following a reactor trip, the termination point for transients at WBNP is considered a stabilized condition at hot standby per chapter 15 of the WBN FSAR. Event recovery actions are those manual actions taken to mitigate a design basis accident to a stabilized condition. The plant can be considered stabilized when the plant parameters vary slowly and automatic systems are not being initiated. The diagnostic process consciously performed by the operator via the plant variables to interpret an event indication will be considered as a safety-related operator action regardless of the lack of manual manipulation of equipment. This diagnostic process is necessary to enable the operator to distinguish the "type" of transient and take the correct mitigating actions.

A review of TVA calculation WBN0SG4047 and the associated Emergency Instructions found that there are NNC 5/4/2011: Will the FSAR no operator actions that are meet the RG 1.97 Revision (Amaendment 103) Table 7.5-2 Var No.

2 definition for a Type A variable which are based on 4, Contaimnment Radiation be the containment high range radiation monitors. Based updated to change the variable type on this review, IEEE 603 is not applicable to the designation? Will this variable still be containment high range radiation monitors. Qualification Category No. 1?

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N 365 7.5.2. 7.5 On 5/6/2010 (See Open Item No. 81) the NRC Staff requested an The Common Q PAMS panel internals meets the 2. Y Open Open-NRC Review NNC 4/125/2011: See Open Item No.

2 evaluation of the Common Q PAMS against the current staff requirements of Regulatory Guide of 1.75 and IEEE Std 384 Due 5/15/11 81.

position. 1992. The external Common Q PAMs cables are routed as 1E, 10 CFR 50.49, trained cables in accordance with Watts By letter dated 2/25/11 (ML110620219), TVA docketed a response: Bar Design Criteria WB-DC-30-4, which is not in that WBN2 is not committed in complying with Reg. Guide conformance with Regulatory Guide 1.75 Revision 3 or IEEE 1.75Since WBN2 is not committed to RG 1.75 or IEEE-384, no Std 384-1992.

comparison is required As noted in WBN Unit 2 FSAR section 8.1.5.3 Compliance However, WBN2 is committed to RG 1.75 Rev. 2, Physical to Regulatory Guides and IEEE Standards note 2 Independence of Electric Systems. RG 1.75 Rev. 3 and IEEE Std. Regulatory Guide 1.75 was issued after the Watts Bar EICB (Carte) 384-1992 are used, in part, to address IEEE Std 603-1991 Clause design was complete. Separations criteria for WBNP are 5.6.1. The current NRC staff position for RG 1.75 is documented in given in Section 8.3.1.4.2.

Rev. 3. Based upon the review of this item, the staff finds the following open item: FSAR section 8.3.1.4.2 provides a detailed discussion of the 1 TVA to updated FSAR (Amendment 103) Table 7.1-1 to WBN Unit 2 separation requirements and compensatory include RG 1.75 Rev. 3 for WBN2 Common Q PAMS and the actions. To ensure that non-1E cables do not degrade 1E Sorento Containment High Radiation monitor. cables, non-1E routed in a Class 1 structures are evaluated to ensure that they are adequately protected to prevent The Common Q PAMS was designed to meet the requirements of propagation of damage from the non 1E cables to 1E cables.

RG 1.75 Rev. 2. WBN2 did not perform an analysis to RG 1.75 Rev. 3. Based upon the review of this item, the staff finds the The NRC reviewed TVAs separation criteria as following open item: supplemented by a breaker testing program in SSER 16 and 2 TVA to evaluate Common Q PAMS and the Sorento found it to be acceptable. The same criteria and breaker Containment High Radiation monitor for conformance with RG testing program are applicable to WBN Unit 2.

1.75 Rev. 3.

366 7.5.2. 7.5 On 5/6/2010 (See Open Item No. 81) the NRC Staff requested an The Common Q PAMS and RM-1000 radiation monitors 3. Y Open Open-NRC Review NNC 4/125/2011: See Open Item No.

2 evaluation of the Common Q PAMS against the current staff comply with IEEE 344-2004 and with Reg. Guide 1.100 Due 5/15/11 81.

position. Revision 3 with the exception of testing above 30Hz. Table 7.1-1 will be updated to reflect conformance.

By letter dated 2/25/11 (ML110620219), TVA docketed a response:

TVA stated that the Common Q PAMS equipment fully meets the RG 1.100 Rev. 0 and is compliant with Rev. 3, with exception of testing above 33 Hz, which is not applicable to Watts Bar.

The WBN2 FSAR (Amendment 103) references Regulatory Guide 1.100 Rev. 1 Seismic Qualification of Electrical Equipment for EICB (Carte)

Nuclear Power Plants. The Common Q PAMS was designed to meet the requirements of RG 1.100 Rev. 2. RG 1.100 Rev. 3 is the current revision of this guide and is endorsed by the NRC. RG 1.100 Rev. 3 endorses IEEE 344-2004.

Based upon the review of this item, the staff finds the following open item:

1 TVA to updated FSAR (Amendment 103) Table 7.1-1 to include RG 1.100 Rev. 3 for WBN2 Common Q PAMS and the Sorento Containment High Radiation monitor.

or 2 TVA to evaluate Common Q PAMS for conformance with RG 1.100 Rev. 1.

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N 367 7.5.2. 7.5 On 5/6/2010 (See Open Item No. 81) the NRC Staff requested an Common Q PAMS complies with Regulatory Guide 1.153 4. Y Open Open-NRC Review NNC 4/125/2011: See Open Item No.

2 evaluation of the Common Q PAMS against the current staff Revision 1. The response in Attachment 4 to TVA to NRC Due 5/15/11 81.

position. letter dated February 25, 2011 (Reference 3) was in error.

By letter dated 2/25/11 (ML110620219), TVA docketed a response.

The WBN2 FSAR (Amendment 103) references RG 1.153 Rev. 0, Criteria for Safety Systems. The Common Q PAMS is designed to meet the requirements of RG 1.153 Rev. 1. By letter dated February 25, 2010 (ML110620219), TVA stated:

The subject Regulatory Guides [RG 1.153 Rev. 0 & 1]

endorse and reference other standards. Common Q PAMS has been evaluated to comply with the requirements of these EICB (Carte) other endorsed standards ([Comparison report in this letter titled IEEE-279-1971 to IEEE-603-1991 Comparison]).

Therefore no additional analysis needs to be performed and no further action is necessary.

However, the Comparison report in this letter titled IEEE-279-1971 to IEEE-603-1991 Comparison, stated:

The first of the two standards, IEEE-279, is part of the design basis of WBN2 but is not relevant to Common Q PAMS. The second standard, IEEE-603-1991 is not part of the design basis for the Common Q PAMS forWBN2.

Based on the reasoning quoted above, WBN2 did not evaluate the Common Q PAMS against the criteria of RG 1.153 Rev. 1; therefore, the staff finds the following open item (see also Open Items No. 1 & 2 above.):

1 TVA to evaluate Common Q PAMS for conformance with RG 1.153 Rev. 1.

368 7.5.2. 7.5 On 5/6/2010 (See Open Item No. 81) the NRC Staff requested an Attachment 6 contains the evaluation for Common Q PAMS 5. Y Open Open-NRC Review NNC 4/125/2011: See Open Item No.

2 evaluation of the Common Q PAMS against the current staff for conformance with RG 1.152 Revision 2 Due 5/15/11 81.

position.

By letter dated 2/25/11 (ML110620219), TVA docketed a response.

The WBN2 FSAR (Amendment 103) references RG 1.152 Rev. 0, Criteria for Digital Computers in Safety Systems of Nuclear Power Plants. The Common Q PAMS was designed to meet the EICB (Carte) requirements of RG 1.152 Rev. 1. RG 1.152 Rev. 2 is the current revision of this guide and is endorsed by the NRC. By letter dated February 25, 2010 (ML110620219), TVA stated:

RG 1.152 rev 2 endorses ANSI/IEEE-ANS-7-4.3.2-2003, but also provides extra regulatory guidance concerning computer based cyber security. Since this revision was not part of the design basis of WBN2 or Common Q PAMS, the project makes no commitment to the compliance of RG 1.152 rev 2.

Based upon the review of this item, the staff finds the following open item:

1 TVA to evaluate Common Q PAMS for conformance with RG 1.152 Rev. 2.

369 7.5.2. 7.5 On 5/6/2010 (See Open Item No. 81) the NRC Staff requested an 6. N Open Open-TVA/WEC NNC 4/125/2011: See Open Item No.

2 evaluation of the Common Q PAMS against the current staff Due 5/15/11 81.

EICB (Carte) position.

By letter dated 2/25/11 (ML110620219), TVA docketed a response.

The WBN2 FSAR (Amendment 103) references IEEE 7-4.3.2-1982, "IEEE Standard Criteria for Digital Computers in Safety

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N Systems of Nuclear Power Generating Stations" as endorsed by Regulatory Guide (RG) 1.152, "Criteria for Use of Computers in Safety Systems of Nuclear Power Plants," Revision 0 for the Eagle 21 system. The current regulatory position is documented in RG 1.152 Rev. 2 which endorses IEEE Std 7-4.3.2-2003 as an acceptable method for using digital computers to meet IEEE Std 603-1991. Based upon the review of this item, the staff finds the following open item:

1 WBN2 to updated FSAR Table 7.1-1 to reference IEEE 7-4.3.2-2003 as being applicable to WBN2 Common Q PAMS and the Sorento Containment High Radiation monitor.

370 7.5.2. 7.5 On 5/6/2010 (See Open Item No. 81) the NRC Staff requested an TVA Partial Response to NRC Request: 7. Y Open Open-TVA/WEC/NRC NNC 4/125/2011: See Open Item No.

2 evaluation of the Common Q PAMS against the current staff Due 5/15/11 Review of Partial 81.

position. Common Q PAMS is designed in accordance with Response Regulatory Guide 1.168, Revision 1, IEEE 1012-1998 and By letter dated 2/25/11 (ML110620219), TVA docketed a response. IEEE 1028-1997. These references will be added to FSAR Table 7.1-1.

The WBN2 FSAR (Amendment 103) does not reference RG 1.168, EICB (Carte)

IEEE 1012, or IEEE 1028. IEEE Std 7-4.3.2-2003 indentifies IEEE Std 1012-1998 as normative. RG 1.168 Rev. 1 endorses, with clarifications, IEEE 1012-1998. The current staff positions are documented in RG 1.168 Rev. 1, IEEE 1012-1998, and IEEE 1020-1997. Based upon the review of this item, the staff finds the following open item:

1 WBN2 to updated FSAR Table 7.1-1 to reference RG 1.168 Rev. 1, IEEE 1012-1998, and IEEE 1020-1997 as being applicable to WBN2 Common Q PAMS and the Sorento Containment High Radiation monitor.

371 7.5.2. 7.5 On 5/6/2010 (See Open Item No. 81) the NRC Staff requested an 8. N Open Open-TVA/WEC NNC 4/125/2011: See Open Item No.

2 evaluation of the Common Q PAMS against the current staff Due 5/15/11 81.

position.

By letter dated 2/25/11 (ML110620219), TVA docketed a response.

The WBN2 FSAR (Amendment 103) does not reference Regulatory Guide 1.209, Guidelines for Environmental EICB (Carte)

Qualification of Safety-Related Computer-Based Instrumentation and Control Systems in Nuclear Power Plants. Based upon the review of this item, the staff finds the following open item:

1 WBN2 to updated FSAR Table 7.1-1 to reference RG 1.209 and IEEE Std. 323-2003 as being applicable to WBN2 Common Q PAMS and the Sorento Containment High Radiation monitor.

TVA did not docket an evaluation against the criteria in RG 1.209.

Based upon the review of this item, the staff finds the following open item:

2 WBN2 to evaluate Common Q PAMS for conformance with RG 1.209 and IEEE Std. 323-2003.

372 7.5.2. 7.5 On 5/6/2010 (See Open Item No. 81) the NRC Staff requested an TVA Partial Response to NRC Request: 9. Y Open Open-TVA/WEC/NRC NNC 4/125/2011: See Open Item No.

2 evaluation of the Common Q PAMS against the current staff Due 5/15/11 Review of Partial 81.

position. 1. Attachment 7 contains the evaluation for how the Response EICB (Carte)

Common Q PAMS SysRS and SRS implement the By letter dated 2/25/11 (ML110620219), TVA docketed a response. design basis requirements of IEEE 603-1991 Clause 4.

The requirements in the SysRS and SRS are not traceable back to the design basis (e.g., IEEE Std 603-1991 Section 4) for the system. The SRS does not include any documented evidence that

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N it was ever independently reviewed in accordance with the 10CFR50 Appendix B Criterion III, Design Control. (Note: It appears that the only Common Q or WBN2 PAMS document that was independently reviewed in accordance with 10 CFR 50 Appendix B requirements is the SysRS.)

Based upon the review of the SysRS and SRS, the staff finds that there is reasonable assurance that the systems fully conform to the applicable guidelines, except for the following open items:

1 TVA to produce an acceptable description of how the SysRS and SRS implement the design basis requirements of IEEE 603-1991 Clause 4.

2 TVA to produce a final SRS that is independently reviewed in accordance with 10CFR50Appendix B, Criterion III Design Control, requirements.

373 7.5.2. 7.5 The SDDs do not include any documented evidence that they were 10. N Open Open-TVA/WEC 2 independently reviewed in accordance with the 10CFR50 Appendix Due 5/15/11 EICB (Carte)

B Criterion III, Design Control.

Based upon the review of the SDDs, the staff the following open item:

1 TVA to produce final SDDs that are independently reviewed in accordance with 10 CFR50 Appendix B Criterion III, Design Control, requirements.

374 7.5.2. 7.5 By letter dated October 29, 2010 (ML103120711), TVA docketed a 1. The Technical Specification Changes required by 11. N Open Open-NRC Review 2 draft technical evaluation associated with an engineering design implementation of the Common Q PAMS were made in Due 5/15/11 change (ML103120712) that states the Common Q PAMS will Revision B of the Technical Specifications which were EICB (Carte) require changes in the technical specifications. The technical submitted on TVA to NRC letter dated February 2, 2010, specifications (TS) have not be received yet for review. The TS will Watts Bar Nuclear Plant (WBN) - Unit 2 -

be reviewed once they are received. Developmental Revision B of the Technical 1 Confirm/Verify Technical Specification changes associated Specifications (TS), TS Bases, Technical Requirements with Common Q PAMS are acceptable. Manual (TRM), TRM Bases; and Pressure and Temperature Limits Report (PTLR) ADAMS ascension number ML100550326 (Reference 2).

375 7.7.9 1. During the conference call held on 4/12, the staff requested TVA Partial Response to NRC Request: 12. N Response on Hold based on May Open-TVA/WEC/NRC TVA to provide a description of the differences in hardware 12 Rockville Public Meeting Review of Partial and/or software design and implementation of the Incore 1. System differences are described in EDCR 52321-1 Response Instrumentation System instrumentation between WBN2 and Excerpts (Attachment 4 to TVA to NRC letter dated NRC Update (Alvarado) - Based on WBN1. This information was not included in the 4/15 letter. April 15, 2011 (Reference 1) pages 2 and 3, 7 through the presentation material and When will this be provided? 9, and 60 through 113. discussions with TVA and WEC, we have revised the questions for this

2. The response for item g provided by TVA does not describe 2. Please see response to the following question for EQ open item as follows:

how the regulatory requirements were met. It only listed the reports. Only the safety related portion of IITA 1. Request now identifed in item criteria and stated that it passed the test. Also, the criteria for (namely the CETs and CET cable assemblies) are #384.

EICB (Alvarado)

IITA does not list criteria for environmental qualifications of safety significant and fall under the cited regulatory 2. The only thing missing from this safety-related equipment (e.g., RG 1.29, Environmental guide. response is the equipment Equipment Qualifications). Please provide summary test qualification for the MI cable, reports. 3. Please refer to Westinghouse report DAR-ME-09-10, IITA, and SPS cabinet, as well Revision 0, Qualification Summary Report for the as analysis to show compliance

3. Attachment 4 of the TVA letter 4/15 states that the CET and WINCISE Cable and Connector Upgrade at Watts Bar with IEEE-384. These requests CET cable assembly, as well as mineral insulated cables and Unit 2 (proprietary) (TVA Document Number: 25402- are now identified in Items #381, IITA connectors, are EQ and class 1E qualified. Please 011-V1A-MG00-01949-001-WBT-D-1464) (Attachment 382, 383, 385, and 387.

provide the qualification summary test report for these 8) for qualification of the associated cable assemblies. 3. See comment above. These components. The non-proprietary version of DAR-ME-09-10, requests are now identified in Revision 0, Qualification Summary Report for the Items #381, 382, 383, 385, and

4. Attachment 5 of the TVA letter 4/15 provides the hardware WINCISE Cable and Connector Upgrade at Watts Bar 387.

description for the WINCISE (WEC document NO-WBT-002). Unit 2 and the affidavit for withholding will be 4. Request now identifed in item Does this document include a section for Software submitted within two weeks of receipt from #380.

Description? If so, please provide a copy. Westinghouse. 5. Closed.

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N

6. Closed

5. Attachment 7 of the TVA letter 4/15 describes the functionality The qualification report for the IITAs has not been 7. Closed of the IIS for Watts Bar unit 2 and the IIS used in AP-1000. completed. The proprietary, non-proprietary versions 8. Closed The description provided only describes the similarity for the and the affidavit for withholding will be submitted within 9. This item still requires a core exit thermocouple (CET) and the PAMS system. two weeks of receipt from Westinghouse. response from TVA.

However, this document does not describe the other 10. Closed.

components of the IIS (e.g. IITAs). Please clarify if the only 4. There is no software description in the reference (NO- 11. Request now identifed in items similarity between Watts Bar unit 2 and AP-1000 is for the WBT-002). The functionality of the software for the IIS #381 and 387.

CETs and PAMS, and that there is not similar for the IITAs. is described in the reference. Note that the BEACON 12. Closed.

System software is not part of safety related portion of 13. Closed.

6. The WCAP-12472-P-A for the BEACON system describes IITA. The non-safety IIS provides input to the 14. Please provide updated FMEA that the system has three operational levels: on line BEACON System. that discusses the failure modes monitoring, tech spec monitor (TSM), and direct margin of the MI insulated cable - only monitor. For Unit 1, TVA requested approval of the Beacon 5. The IITA are composed of the CET and the self- for the part of the system that is TSM to be only used as a tech spec monitor for present powered neutron detectors (SPDs). The Watts Bar 1E.

peaking factor limits. Please confirm that the functionality to Unit 2 and AP1000 IITAs have the same function, but 15. Closed be implemented in Unit 2 is the same than the one requested are a slightly different design. These differences are 16. This item still requires a and approved for unit 1. Note Attachment 5 states that the necessary because the Watts Bar IITAs are bottom response from TVA.

Beacon servers run the Beacon TSM, but it is not clear that mounted and the AP1000 IITAs are top mounted. 17. This item still requires a this is the only level operating for the IIS. Additionally, the IITA are sized appropriately for Watts response from TVA.

Bar and AP1000 because the fuel assemblies are 18. This item still requires a

7. The SE for use of the Beacon System in Unit 1 states that the different sizes. The Watts Bar IITA design includes 5 response from TVA.

BEACON system will be used when thermal power is greater self powered neutron detectors (SPDs) of sequentially 19. Request now identifed in items than 25% RTP. Page 129 of Attachment 4 states that the increasing length, up to a maximum length of 12 feet. #380 and 386.

WINCISE system will be capable of performing its required The AP1000 IITA design includes 7 SPDs of 20. Request now identifed in item core monitoring functions at or above 20%RTP. Please clarify sequentially increasing length, up to a maximum of 14 #386.

what the intent is for the Beacon system in Unit 2. feet. 21. Request now identifed in items

1. 380.

8. The technical evaluation provided for the Beacon System for 6. Unit 2 has only been provided with the BEACON TSM 22. Closed.

unit 1 states that the movable incore detectors (MIDs) are function. 23. Closed.

used for periodic calibration of the PDMS when thermal power is greater than 25% RTP. Additionally, the MIDs are used 7. The BEACON topical report states that BEACON whenever the PDMS is inoperable or whenever power PDMS will be inoperable below 25% RTP. The distribution is below 25%. Please explain how this function electrical equipment operability requirements are set will be performed with the fix incore detectors and the Beacon below the core power distribution monitoring system for unit 2. requirements to ensure that the electronics are operable when needed to support core monitoring.

9. In the NRC SE for WCAP-12472-P-A for the BEACON system, the staff accepted this system but subject to three 8. Periodic flux maps using the MIDs (Unit 1) have been conditions. In the TVA submittal for use of the Beacon system replaced by continuous analysis of the permanently in unit 1, TVA described how they met these conditions for installed fixed incore detectors (Unit 2). Data from Unit 1. Please describe how TVA will meet these conditions these fixed incore detectors will periodically be used to for Unit 2. generate a set of calibration factors for the BEACON PDMS. The following description was provided in

10. Please clarify the following statement provided in Attachment response to a RAI for addendum 1 of the BEACON 4, Page 25: During certain accident scenarios, it is possible topical report:

for the CETs to see temperatures up to 20 deg F different from Unit 1. The basic concepts and methodologies used for determining the detector uncertainties and limitations

11. Attachment 4 and 5 explained that the Mineral Insulation cable are the same between a BEACON system for a typical allows the isolation of the core exit thermocouples (1E) and Westinghouse plant and a plant that is using SPDs.

self-powered neutron detector (non-1E) signals. Please However, since the basic hardware is different, the provide the analysis that evaluated this separation, as well as actual uncertainties, limitations and restrictions the evaluation that show that failure of the non-1E signal wont associated with fixed incore detectors are different from affect the 1E signal. the corresponding values associated with the use of incore movable detectors. The prime purpose of the

12. Page 129 of Attachment 4 states that a minimum of three BEACON system is to continuously measure the core thermocouples are operable in each quadrant. Table 7.5-2 of peaking factors with high accuracy. In the standard the SSER (R.G. 1.97) states that 4 thermocouples should be Westinghouse BEACON plant, the incore movable

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N operable in each quadrant. Please explain if TVA is deviating detectors provide periodic (180 EFPD) calibration input from the requirements in R.G 1.97, and how this is justified. to the BEACON System with thermocouple and excore detector readings providing data for continuous power

13. Please provide information regarding the effects of a software distribution monitoring. The plant specific analysis common cause failure (SWCCF) on the IIS. used to determine the uncertainties in this measurement are described in Section 5 of WCAP-

14. The FMEA provided by TVA on 4/15 has not been updated 12742-P-A. The fixed incore detector functionality (see email from Steve Clark on 4/11). Also, the FMEA replaces the functionality of the core exit provided focus on failures during installation and thermocouples, excore detector axial power shape commissioning and it does not identify measures for failures information, and periodic incore movable detector during operation. Last, this FMEA does not address software inputs used by the BEACON System continuous failures, only component failures and installation failures. monitoring process in Westinghouse design plants.

Please provide an updated and complete version of the FMEA The fixed incore detector uncertainties are analyzed for a specific plant detector configuration using the

15. Attachment 4, TVA document Incore Instrumentation System methodology described in Section 5.0 of Addendum 1 describes the system requirements. Therefore, provide a to WCAP-12472-P-A.

complete system description of the IIS for the staff to evaluate the IIS to be installed in Watts Bar Unit 2. Generally speaking, the more fixed incore detectors Also, the description for the incore thermocouple system in are installed, and the higher each detectors this TVA document is inconsistent with the description measurement accuracy is (smaller measurement provided in Westinghouse WINCISE Hardware Description variability), the smaller the measured core power (Attachment 5). For example, Section 1.2 of the TVA peaking factor uncertainty becomes. As described in document states that there are 65 incore thermocouples and response to Question 8, the SPD detector design and Section 2.2.9 describes that the incore thermocouples provide layout are different for the different NSSS vendors.

an input signal to the Inadequate Core Cooling Monitor. Furthermore, there are some basic differences in the application of the SPD and moveable detector

16. TVA attachment 4 of the 4/15 letter show modifications to the systems. These include:

DBE design criteria. Please provide detailed explanation about these modifications. As plant operation continues, neutron irradiation depletes the detector sensor material and

17. Please explain if new penetration and routing were required increases the measurement variability. The for IIS signals. If new penetrations are required, explain how measurement variability of the incore movable these were qualified. Also, explain the criteria used to route detectors effectively does not change during the power/control cables. operation because the movable detector measurements are not present in the core for

18. Questions on Technical Specification: sufficiently long times to undergo any appreciable (1) The TVA package states that TS 3.1 and TS Bases 3.1 depletion of the detector material.

were modified due to WINCISE. Please provide detailed information to evaluate the modifications to the TS. Some of the fixed incore detectors may fail during (2) The TVA mark up does not define the operating limits in operation, which requires that the power the TS for the reactor power distribution. Please provide distribution measurement uncertainty be adjusted detailed information on how the IIS may impact the Technical during plant operation. If an individual incore Specification. movable detector fails, the core locations measured by the failed detector can be accessed

19. Redundancies are designed and built into the signal using one of the other movable detectors, so no processing system to avoid impacting operation in the event of uncertainty adjustment is required.

the loss of some SPD signals. The master signal processing rack data interface card provides the output data stream to the If an incore movable detector location access Application server. Each cabinet master signal processor rack thimble becomes blocked, then the power contains redundant data interface cards. Loss of one data distribution measurement uncertainty associated interface card will not result in a loss of data output from the with the BEACON calibration data generated from cabinet. Provide detailed description on how this works (e.g., the incore movable detector input is automatically is the switchover software based?) adjusted by the BEACON System. Should the thimble become usable at a later time, BEACON

20. The Application Servers receive information from Signal automatically adjusts to this situation. If a FID Processing System (SPS Cabinets), Integrated Computer string cannot be inserted into the thimble during System (ICS), and BEACON. The WINCISE IP Switches the refueling, the entire string is left out of the core provide the main hub for traffic flow from the SPS cabinets, and the uncertainty is adjusted accordingly for the BEACON servers, Application Servers, and ICS. Provide

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N detailed description of the communication among the entire cycle.

Integrated Computer System (ICS) and the Beacon System and the Wincises Application servers. The BEACON power distribution uncertainty methodology is designed to determining the power

21. Attachment 4, TVA document Incore Instrumentation System peaking factor measurement uncertainty for a wide describes that the WINCISE system includes a Domain range of the SPD detector operating conditions. The server, which provides a supportive function and is not measure peaking factor uncertainty is defined as a required for the PDMS to receive needed information from the function of the fraction of inoperable detectors and the Application Server. However, the domain server provides an detector measurement variability as given by Equation environment for the development and maintenance of 3 and Equation 4 of Addendum 1 to WCAP-12472-P-A.

application and system software. Please explain how this The methodology of the power peaking factor domain server will be configured and used for WINCISE in uncertainty determination is described in Section 5 of WBN2. Note that the domain server is not part of the Addendum 1 to WCAP-12472-P-A.

Westinghouse WINCISE Hardware Description (Attachment 5)

The constants, variabilities, and coefficients used in the

22. Page 52 of Attachment 4, question 1.5 was answered yes, but equations described in Section 5 of Addendum 1 to the I&C calculation to be provided in Sections 4 and 5 is not WCAP-12472-P-A are specific for a given reactor core included. Please explain if this calculation was performed, and geometry, detector configuration, and installation if so provide a description. layout, and can be obtained as described in Section 5.

The equations are applicable for a wide range of

23. Page 52 of Attachment 4, Section 6 does not include the block detector conditions anticipated during the reactor diagram of the proposed modification to WBN2. Please operation.

provide a block diagram if the system, including power sources. The behavior of the measured peaking factor uncertainties as a function of the incore detector variability and composite random detector loss levels are shown in Figure 4 and Figure 5 of Addendum 1 to WCAP-12472-P-A for a representative plant. It is seen that the higher the SPD measurement variability and fraction of inoperable detector are, the higher the peaking factor measurement uncertainty becomes.

In most cases, the upper bound of the SPD measurement variability and fraction will be determined for a specified peaking factor measurement uncertainty. Alternatively, the BEACON methodology can be used to support an existing or requested availability requirement for a specific plant.

10. The CETs are included in the IITA at Unit 2. This means that the Unit 2 CETs are physically located in different areas (radically and axially) than the Unit 1 thermocouples. In other words, this statement points out that a direct comparison of CET readings from Unit 1 and Unit 2 will be of little value. The Unit 2 CETs are located at the top of the active fuel inside the fuel assembly instrument thimble, instead of at the bottom of the upper core plate, so differences in temperature are to be expected between the units.

Please note that these differences have been specifically considered in the applicable post-accident monitoring procedures.

11. The attached documents provide the assessment of potential interactions between the core exit thermocouples and the self powered detectors of the AP1000 Incore Instrumentation System. Note that APP-IIS-J0R-002 (ML102390521) is a non-proprietary version of APP-IIS-J0R-001.

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N

12. To clarify, page 129 states that the WINCISE system shall support two divisions of CET with a minimum of three thermocouples provided in each core quadrant for each division. In other words, there are at least three thermocouples per train per quadrant, or a minimum of six thermocouples per quadrant.

13. The IIS software functions are non-safety-related and have no impact on any safety function. Therefore software common mode failure analysis is not required.

15. There are two design changes that impact this system description. The responsible engineers agreed that the WINCISE change package (EDCR 52321) would address everything except the CETs and that the Common Q PAMS change package (EDCR 52351) would address the changes related to the CETS. As previously committed, the Common Q PAMS EDCR 52351-B will be submitted after the package is issued.

Currently the package is scheduled to be issued May 12, 2011.

16. The changes are based on the installation of WINCISE in WBN Unit 2 as shown on page 115 of the attachment in the Revision No. 13 Description of Revision and in the Description of Change on pages 2 and 3 of the attachment.

376 7.7.9 DCI-CVIB Input: 13. Response on Hold based on May Open-TVA/WEC Related to OI 360 12 Rockville Public Meeting ReferenceEDCR # 52321, Revision AEDCR Unit Difference Form --- Bechtel Document Page 2 -Maintenance Difference The proposed In-Core Instrument Thimble Assemblies (IITAs) which will replace Movable In-Core Detectable Systems (MIDs) have the following features:

(1) IITAs are not fully extracted and they are held in a EICB (Alvarado) movable frame assembly.

(2) IITAs exert lower vibration amplitude and therefore, aging degradation due to wear does not occur.

(3) Loss of reactor coolant system pressure boundary due to breach of IITA outer sheath does not occur.

Question:

The staff believes that the licensee should provide an inspection program to confirm that the aforementioned attributes associated with IITAs are valid and this inspection program can be a part of a routine maintenance program.

Replacement of 58 CETs for the current 65 CETs -to be addressed by the fuels division.

377 7.7.9 CB (Al 1. (a) 14. Response on Hold based on May Open-TVA/WEC Further explanation is required for the sentence in EDCR 52321 12 Rockville Public Meeting var d

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N Rev A Page 2, During certain accident scenarios, it is possible for the CETs to see temperatures up to 20 degree F different from Unit 1.

(b) Which accident scenarios the above statements refer to?

(c) Compare the accuracy for flux mapping with movable detectors (MIDS) and fixed detectors such as SPDs.

2. Explain how the linear heat generation rate is monitored using the new IITA system.

3. (a) Page 26 of the EDCR 52321-A states that certain SPS electronics cannot withstand the increased pressure during an Integrated Leak Rate Testing (ILRT). As a result, these SPS electronics need to be removed prior to starting the ILRT. If SPS electronics does not survive an ILRT, what will be their status during a design basis accident, such as, loss of coolant accident?

(b) Page 129 of EDCR 52321-A Item Number 7 CET Requirements states that The CET must be operable before, during, and after a design basis accident without loss of safety function, and for the time required to perform the safety function.

Does this CET requirement conflict with the scenario in Part (a) above, such that the malfunction of the electronics during high pressure during the design basis accident?

4. BEACON Power Distribution Monitoring System (PDMS) with WINCSE seems to be functioning different from old conventional BEACON monitoring system. Explain the differences between the new and old system and the advantages, if any, of the new system over the old one.

5. EDCR 52321-A Page 129 (WBN2-94-4003 Rev 0000 Page 18 of 41) WINCISE Requirements Sections 1 and 2 specify minimum requirements for inputs from SPDs such that the WINCISE system shall not require input from 75% (50% for Section

2) of the instrumented locations, with at least five operable SPD associated with the top half of the active core and at least five operable SPD associated with bottom half of the active core per quadrant,. Section 3 states that The WINCISE System will be capable of performing its required core monitoring functions at or above 20% RTP. Provide documents supported by analyses that will show that the incore monitoring systems and the CET system will be fully capable of performing the intended functions under the circumstances prescribed in Sections 1, 2 and 3 of WINCISE Requirements.

6. Section 6.0 of WCAP-12472-P-A Addendum 2-A stipulates that in addition to maintaining power distribution Technical Specification that require surveillance of parameters related to hot rod power and local power density, it will be necessary for the licensees to include a BEACON Operability specification in the Technical Requirements Manual (TRM) associated with either the NUREG-1430 or NUREG-1432 format TS. Are the minimum requirements (50% and 75% of the instrument locations input) and functions of WINCISE and CET systems specified in Sections 1 through 6 of WINSCISE Requirements included in the WBN-2 Technical Specifications? If the answer is no, explain why. Also,

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N please provide the agency with a copy of the Technical Requirements Manual for the WINCISE system proposed for WBN-2

7. NRC Staffs search for references listed in Section 7 of EDCR 52321-A resulted in lack of any specific reference to Westinghouse Topical Report in the EDCR 52321-A.

(a) Please specify which of the Addendums for WCAP 12472 Topical Report or any other Westinghouse TR is the basis for the planned WINCISE system to be installed at Watts Bar -2.

(b) Provide the Agency with all relevant calculations and analyses supporting the proposed WINCISE system for Watts Bar 2.

378 Make the following WEC proprietary documents available for NRC Per Westinghouse letter WBT-D-3201, the documents are 15. Due 5/24/11 Closed-TVA/WEC review at the Westinghouse Rockville office: available for NRC review. The NRC can make arrangements to view these documents by contacting Ms. Leslie Collins at WINCISE Functional Specification for Watts Bar Unit 2, 301-881-7040 (e-mail: collinlj@westinghouse.com).

420A90, Rev. 2 BEACON Data Processing Application Program Software Requirements Specification, WNA-DS-02196-WBT, Rev. 1 Standard Fixed In-Core Detector Data Processing (PRLQFDO.2) Function Block Specification, WNA-DS-01400-EICB (Alvarado)

GEN, Rev. 0 Standard Vanadium Detector Filter (FBM.SPDO.2) Function Block Specification, WNA-DS-O 1402-GEN, Rev. 0 lIS SPS Datalink Client Software Interface Specification, WNA-DS-02208-WBT, Rev. 1 BEACON'" Datalink Interface Specification, WNA-DS-02194-WBT, Rev. 1 ICS Datalink Interface Specification, WNA-DS-02193-WBT, Rev. 1 Watts Bar 2 Incore Instrument System (lIS) Signal Processing System (SPS) Isolation Requirements, WNA-CN-00lS7-WBT, Rev. 0 379 CB (Al Provide proprietary and non-proprietary versions of the WINCISE 16. Due 6/17/11 Open-TVA/WEC slides from the May 12 public meeting.

var d

380 Provide Non-Proprietary functional description of the WINCISE 17. Due 6/24/11 Open-TVA/WEC Application Server including discussion on redundancy for both the servers and the configuration of the Beacon A/B computers NRC Update (Alvarado) - need the proprietary versions of reports, such EICB (Alvarado) as EQ tests, EMI/RFI tests, calculations, and other documents to make a safety determination, not non-proprietary reports that reference these reports and calculations.

381 (A lv Non-Proprietary description of the qualification of the MI cable 18. Due 6/24/11 Open-TVA/WEC ar

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N assemblies with references to any EQ report (if applicable) - June 10th NRC Update (Alvarado) - need the proprietary versions of reports, such as EQ tests, EMI/RFI tests, calculations, and other documents to make a safety determination, not non-proprietary reports that reference these reports and calculations.

382 Non-Proprietary description of the qualification of the SPS cabinet 19. Due 6/24/11 Open-TVA/WEC with references to EQ report(s)

NRC Update (Alvarado) - need the EICB (Alvarado) proprietary versions of reports, such as EQ tests, EMI/RFI tests, calculations, and other documents to make a safety determination, not non-proprietary reports that reference these reports and calculations.

383 Non-Proprietary description of the qualification of the IITA with 20. Due 6/24/11 Open-TVA/WEC references to EQ report(s)

NRC Update (Alvarado) - need the EICB (Alvarado) proprietary versions of reports, such as EQ tests, EMI/RFI tests, calculations, and other documents to make a safety determination, not non-proprietary reports that reference these reports and calculations.

384 EICB Non-Proprietary description of the differences between Unit 1 and 21. Due 6/24/11 Open-TVA/WEC (Alvar Unit 2 core monitoring with references to Westinghouse ado) documentation.

385 Non-Proprietary description of the calc note shown to the NRC at 22. Due 6/24/11 Open-TVA/WEC the meeting.

NRC Update (Alvarado) - need the EICB (Alvarado) proprietary versions of reports, such as EQ tests, EMI/RFI tests, calculations, and other documents to make a safety determination, not non-proprietary reports that reference these reports and calculations.

386 Provide a description of the communications between the SPS and 23.

EICB the ICS. This should include what data is transmitted to the ICS and what data comes from the ICS that is used by WINCISE. Also, (Alvarado) how are the requirements for safety-to-non-safety isolation achieved.

387 EICB Provide a copy of the analysis which states how Westinghouse has 24.

(Alvar met the Reg Guide 1.75/ IEEE-384 requirements for isolation ado) between safety and non-safety for the CETs and the SPS panels

Agenda for Weekly Telecom with TVA (I&C Chapter 7 only) rad384F1.docx Open Items to be Resolved for SER Approval

Response

SE FSAR NRC No. Issue TVA Response(s) Acceptable Status/ Current Actions Resolution Path RAI No. & Date RAI Resp. Date Comments Sec. Sec. POC Y/N 388 25.

389 26.

390 27.