ML092880392

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Request for Additional Information, Relief Request RR-ENG-2-53, Alternative to Inservice Inspection Requirements for Ultrasonic Exam of Reactor Pressure Vessel Shell-to-Flange Weld
ML092880392
Person / Time
Site: South Texas  STP Nuclear Operating Company icon.png
Issue date: 10/15/2009
From: Lyon F
Plant Licensing Branch IV
To: Harrison A
South Texas
Lyon C Fred, NRR/DORL/LPL4, 301-415-2296
References
TAC ME2329, TAC ME2330
Download: ML092880392 (1)


Text

From:

Lyon, Fred Sent:

Thursday, October 15, 2009 10:50 AM To:

Harrison, Albon Cc:

plwalker@stpegs.com; Thadani, Mohan

Subject:

RAI for RR-ENG-2-53 (TAC Nos. ME2329-30)

The staff reviewed the STP submittal dated 9/23/09 regarding relief request RR-ENG-2-53 and requests the following additional information.

1. In section 1 of Relief Request RR-ENG-2-53, the licensee referenced the ASME Code, 1995 edition, 1996 addenda. Please clarify whether or not the 1995 edition, 1996 addenda is the code of record for the current inspection interval. Also, please confirm that the current inspection interval is the second inspection interval.
2. In Section 4, 2nd paragraph, of the relief request, the licensee stated that, "In addition, ASME Section XI, 2004 Edition 2005 Addenda, Appendix I, Article I-2600(a) states that for components to which Appendix VIII is not applicable [Article I-2110(b)], examination procedures, personnel, and equipment qualified in accordance with Appendix VIII may be applied."

However, 10 CFR 50.55a(b)(2)(xv) requires that "Licensees who use later editions and addenda than the 2001 edition of the ASME Code shall use the 2001 edition of Appendix VIII."

The NRC prohibits the use of Appendix VIII in ASME Code editions and addenda later than 2001. Therefore, the 2004 edition, 2005 addenda, Appendix I, cannot be applied/used.

In light of the above condition in 10 CFR 50.55a, please explain the second paragraph in Section 4 of relief request RR-ENG-2-53.

3. Provide the weld number for the RPV shell-to-flange weld.

Please respond as soon as possible.

Thanks, Fred E-mail Properties Mail Envelope Properties ()

Subject:

RAI for RR-ENG-2-53 (TAC Nos. ME2329-30)

Sent Date: 10/15/2009 10:38:14 AM Received Date: 10/15/2009 10:50:00 AM From: Lyon, Fred Created By: Fred.Lyon@nrc.gov Recipients:

awharrison@STPEGS.COM (Harrison, Albon)

Tracking Status: None

plwalker@stpegs.com (plwalker@stpegs.com)

Tracking Status: None Mohan.Thadani@nrc.gov (Thadani, Mohan)

Tracking Status: None Post Office:

Files Size Date & Time MESSAGE 9278 10/15/2009 Options Expiration Date:

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