ML102000581

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Email Draft RAI for Temporary Exemption from 50.46 and App. K
ML102000581
Person / Time
Site: Palo Verde Arizona Public Service icon.png
Issue date: 02/24/2010
From: Hall J
Plant Licensing Branch IV
To: Stroud R
Arizona Public Service Co
Hall, J R, NRR/DORL/LPL4,301-415-4032
Shared Package
ML102000593 List:
References
TAC ME2590
Download: ML102000581 (2)


Text

From:

Hall, Randy Sent:

Wednesday, February 24, 2010 10:09 AM To:

Russell.Stroud@aps.com

Subject:

Draft RAI for Palo Verde Unit 3 - Temporary Exemption from 50.46 and App. K (TAC No. ME2590)

Attachments:

draft RAI.doc

Rusty, Attached are the staff's draft RAIs for the subject exemption request. The RAIs concern the detailed design of the LFAs and the coresident fuel for the proposed Unit 3 core. This information is not readily available in the November 2, 2009, submittal. The responses to these questions will enable the staff to determine whether the proposed core be considered a mixed core (among other things), and allow a complete review of the application.

Separate from the attached RAIs, the staff noted that TS 4.2.1, "Fuel Assemblies," does not contain an explicit provision to allow the use of advanced zirconium alloy in assembly structural materials other than cladding, such as spacer grids. Thus, if Optimized ZIRLO is used in non-cladding components of the LFAs, a license amendment to revise TS 4.2.1 may also be needed. We would also like you to address this question.

Please let me know if you would like to discuss the draft RAIs prior to sending a draft response.

Thanks, Randy Hall, Senior Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation USNRC (301) 415-4032 Randy.Hall@nrc.gov E-mail Properties Mail Envelope Properties ()

Subject:

Draft RAI for Palo Verde Unit 3 - Temporary Exemption from 50.46 and App. K (TAC No. ME2590)

Sent Date: 2/24/2010 9:29:49 AM Received Date: 2/24/2010 10:08:00 AM From: Hall, Randy Created By: Randy.Hall@nrc.gov Recipients:

Russell.Stroud@aps.com (Russell.Stroud@aps.com)

Tracking Status: None Post Office:

Files Size Date & Time MESSAGE 47153 2/24/2010 draft RAI.doc 38906 Options Expiration Date:

Priority: olImportanceNormal ReplyRequested: False Return Notification: False Sensitivity: olNormal Recipients received: