ML13281A647

2013/09/09 NRR E-mail Capture - RAI for TurkeyPoint-3-4 (RR-11: Rmse); TAC Nos. MF1391 and MF1392

ML13281A647
Person / Time
Site:	Turkey Point
Issue date:	09/09/2013
From:	Saba F E Division of Operating Reactor Licensing
To:	Tomonto R J Florida Power & Light Co
References
MF1391, MF1392
Download: ML13281A647 (3)

Text

1 NRR-PMDAPEm Resource From: Saba, Farideh Sent: Monday, September 09, 2013 11:30 AM To: Bob.Tomonto@fpl.com; Hanek, Olga (Olga.

Hanek@fpl.com); Mihalakea, Stavroula (Stavroula.Mihalakea@fpl.com)

Cc: Klett, Audrey

Subject:

RAI for TurkeyPoint-3-4 (RR-11: RMSE); TAC Nos. MF1391 and MF1392 Importance:

HighBob/Olga/Stavy,

By letter dated April 5, 2013 (Agencywide Docum ents Access and Management System (ADAMS) Accession No. ML13114A294), Florida Power & Light Company (the licensee) submitted Relief Request (RR) 11 to the U.S. Nuclear Regulatory Commission (NRC) for review and approval. The licensee requested relief from a certain requirement of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code),Section XI, (hereafter called the Code). RR 11 is related to the Code requirement for flaw depth sizing root mean square error (RMSE) criteria for the dissimilar metal (DM) butt weld examinations performed from the inner diameter (ID) surface. RR 11 is submitted for the fourth 10-year inservice inspection (ISI) interval of the Turkey Point Nuclear Generating Unit Nos. 3 and 4.

The NRC staff reviewed RR 11 and determined that the following additional information is needed by October 14, 2013.

1. NRC staff understands that there have not been any ultrasonic testing procedures and personnel capable to depth-size cracks with an RMSE of 0.125 inch or less from the ID for the DM or austenitic welds. However, the ultrasonic testing procedures and personnel have been qualified in accordance with the ASME Code,Section XI, to examine and depth-size these welds from the outer diameter (OD) surface of the pipe. The NRC staff requests the licens ee discuss the difficulties in inspecting the DM welds from the OD surface of the pipe.

2. RR 11 did not provide any discussions regarding examination of the cold leg elbow to nozzle DM welds from the cast stainless steel elbow side. The 1999 Addenda of the Code, Appendix III, Supplement 1, provides requirements for the examinations of cast austenitic stainless steel. Discuss whether the examination of the DM welds will be conducted from the cast stainless steel side, and whether Appendix III, Supplement 1, will be implemented for this examination.

3. In the proposed alternative section of the request, the licensee stated that it will submit a flaw evaluation, but without detailed information. Other similar relief requests provide information regarding the suspected flaw degradation mechanism and the process used to determine the degradation mechanism in their flaw evaluations, (e.g., Catawba submittal dated March 18, 2013, ADAMS Accession No. ML13080A079). The NRC staff requests t he licensee include in it s proposed alternative the information regarding the suspected flaw degradation mechanism and the process used to determine the degradation mechanism in its flaw evaluation, if a flaw is detected during the UT.

4. Section 2 of RR 11 stated, in part:

"The code of record for the Turkey Point Units 3 and 4 Fourth 10-year inservice inspection interval is the 1998 Edition with Addenda through 2000 of the American Society of Mechanical Engineers (ASME)Section XI, "Rules for Inservice Inspection of Nuclear Power Plant Components."

2"In addition, as required by 10 CFR 50.55a, the ASME Section XI, 2001 Edition is used for Appendix VIII, "Performance Demonstration for Ultrasonic Examination Systems."

Clarify whether the above statement is in compliance with Title 10 of the Code of Federal Regulations (10 CFR) 50.55a(b)(2)(xv). 10 CFR 50.55a(b)(2)(xv), in part, states that licensees using Appendix VIII in the 1995 Edition through the 2001 Edition of the ASME Boiler and Pressure Vessel Code may elect to comply with all of the provisions in paragraphs (b)(2)(xv)(A) through (b)(2)(xv)(M) of this section, except for paragraph (b)(2)(xv)(F) of this section, which may be used at the licensee's option. Licensees using editions and addenda after 2001 Edition through the 2006 Addenda shall use the 2001 Edition of Appendix VIII, and may elect to comply with all of the provisions in paragraphs (b)(2)(xv)(A) through (b)(2)(xv)(M) of this section, except for paragraph (b)(2)(xv)(F) of this section, which may be used at the licensee's option.

Thanks, Farideh Farideh E. Saba, P.E. Senior Project Manager NRC/ADRO/NRR/DORL 301-415-1447 Mail Stop O-8G9A Farideh.Saba@NRC.GOV

Hearing Identifier: NRR_PMDA Email Number: 865 Mail Envelope Properties (36CF286628C20846A68047F246323309E7F02FA376)

Subject:

RAI for TurkeyPoint-3-4 (RR-11: RMSE); TAC Nos. MF1391 and MF1392 Sent Date: 9/9/2013 11:30:24 AM Received Date: 9/9/2013 11:30:26 AM From: Saba, Farideh Created By: Farideh.Saba@nrc.gov Recipients: "Klett, Audrey" <Audrey.Klett@nrc.gov>

Tracking Status: None "Bob.Tomonto@fpl.com" <Bob.Tomonto@fpl.com>

Tracking Status: None "Hanek, Olga (Olga.Hanek@fpl.com)" <Olga.Hanek@fpl.com> Tracking Status: None "Mihalakea, Stavroula (Stavroula.Mihalakea@fpl.com)" <Stavroula.Mihalakea@fpl.com> Tracking Status: None

Post Office: HQCLSTR02.nrc.gov Files Size Date & Time MESSAGE 4268 9/9/2013 11:30:26 AM

Options Priority: High Return Notification: No Reply Requested: Yes Sensitivity: Normal Expiration Date: Recipients Received: