ML14168A252

Request for Additional Information Regarding Relief Request 13-MN-003

ML14168A252
Person / Time
Site:	Mcguire
Issue date:	06/18/2014
From:	Miller G E Plant Licensing Branch II
To:	Capps S D Duke Energy Carolinas
Miller G E
References
TAC MF3477
Download: ML14168A252 (3)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C.

Mr. Steven D. Capps Vice President McGuire Nuclear Station Duke Energy Carolinas, LLC 12700 Hagers Ferry Road Huntersville, NC 28078-8985 June 18, 2014 /

SUBJECT:

MCGUIRE NUCLEAR STATION, UNIT 2: REQUEST FOR ADDITIONAL INFORMATION REGARDING RELIEF REQUEST 13-MN-003 (TAC NO. MF3477)

Dear Mr. Capps:

By letter dated February 6, 2014 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML 14055A402), Duke Energy Carolinas, LLC (Duke) submitted a request to the U.S. Nuclear Regulatory Commission (NRC) for relief from certain requirements of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code,Section XI for the third 1 0-year lnservice Inspection Program for McGuire Nuclear Station, Unit 2. The NRC staff has reviewed the licensee's submittal and determined that additional information*

is needed in order to complete its review. The enclosed document describes this request for additional information (RAI). On June 12, 2014, the Duke staff indicated that a response to the RAI would be provided by July 31, 2014. If you have any questions, please call me at 301-415-2481.

Docket Nos. 50-370

Enclosure:

Request for Additional Information cc w/encl: Distribution via Listserv Sinc:r< J (_5l>fl ,.( t1" 1 G. Edward Miller, Project Manager Plant Licensing Branch 11-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation DRAFT REQUEST FOR ADDITIONAL INFORMATION MCGUIRE NUCLEAR STATION, UNIT 2 THIRD 10-YEAR INSERVICE INSPECTION INTERVAL RELIEF REQUEST NO. 13-MN-003 DOCKET NOS. 50-370 By letter dated February 6, 2014, (Agencywide Documents Access and Management System (ADAMS) Accession No. ML 14055A402), Duke Energy Carolinas (Duke) submitted a requestto the U.S. Nuclear Regulatory Commission (NRC) for relief from certain requirements of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code),Section XI for the third 1 0-year lnservice Inspection (lSI) Program for McGuire Nuclear Station, Unit 2 (McGuire 2). In order for the NRC staff to complete its review of the relief request, the following additional information is requested.

1. What is the normal operating temperature and pressure for the subject welds HD-FLG & 2RCHPSS-OUT-1).

2. What environmental conditions are the subject welds, (2ELDHX-HD-FLG

& OUT-1), exposed to (e.g., system transients, vibration, flow)? 3. Describe the materials of construction for the stainless steel head, weld metal, and carb9n steel flange in weld 2ELDHX-HD-FLG.

4. Describe the weld metal used in 2RCHPSS-OUT

-1. 5. Has Duke performed a review of applicable operating

'experience for the subject welds? If so, did this review identify any industry operating experience of similar system welds developing service induced cracking or failure? Enclosure Mr. Steven D. Capps Vice President McGLJire Nuclear Station Duke Energy Carolinas, LLC 12700 Hagers Ferry Road Huntersville, NC 28078-8985 June 18, 2014

SUBJECT:

MCGUIRE NUCLEAR STATION, UNIT 2: REQUEST FOR ADDITIONAL INFORMATION REGARDING RELIEF REQUEST 13-MN-003 (TAC NO. MF3477)

Dear Mr. Capps:

By letter dated February 6, 2014 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML 14055A402), Duke Energy Carolinas, LLC (Duke) submitted a request to the U.S. Nuclear Regulatory Commission (NRC) for relief from certain requirements of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code,Section XI for the third 1 0-year lnservice Inspection Program for McGuire Nuclear Station, Unit 2. The NRC staff has reviewed the licensee's submittal and determined that additional information is needed in order to complete its review. The e.nclosed document describes this request for additional information (RAI). On June 12, 2014, the Duke staff indicated that a response to the RAI would be provided by July 31, 2014. If you have any questions, please call me at 301-415-2481.

Docket Nos. 50-370

Enclosure:

Sincerely, /RAJ G. Edward Miller, Project Manager Plant Licensing Branch 11-1 . Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation

\ Request for Additional Information cc w/encl: Distribution via Listser:v DISTRIBUTION:

Public RidsAcrsAcnw_MaiiCTR Resource RidsNrrDssSbpb Resource RidsNrrLASFigueroa Resource LPL2-1 R/F RidsNrrDorllp12-1 Resource RidsNrrPMMcGuireResource (hard copy) RidsRgn2MaiiCenter Resource ADAMS Accession No ML 14168A252

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