ML14097A118

McGuire Nuclear Station, Units 1 and 2: Request for Additional Information Regarding License Amendment Request to Modify Technical Specification 3.3.2 Setpoint (TAC Nos. MF2741 and MF2742)

ML14097A118
Person / Time
Site:	McGuire, Mcguire
Issue date:	04/09/2014
From:	Miller G E Plant Licensing Branch II
To:	Capps S D Duke Energy Carolinas
Miller E, NRR/DORL/LPLII-1, 415-2481
References
EA-12-049, TAC ME2741, TAC MF2742
Download: ML14097A118 (3)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, o,c. 20555-0001 Mr. Steven D. Capps Vice President McGuire Nuclear Station Duke Energy Carolinas, LLC 12700 Hagers Ferry Road Huntersville, NC 28078-8985 April 9, 2014

SUBJECT:

MCGUIRE NUCLEAR STATION, UNITS 1 AND 2: REQUEST FOR ADDITIONAL INFORMATION REGARDING LICENSE AMENDMENT REQUEST TO MODIFY TECHNICAL SPECIFICATION 3.3.2 SETPOINT (TAC NOS. MF2741 AND MF2742)

Dear Mr. Capps:

By letter dated September 12, Documents Access and Management System (ADAMS) Accession Number ML 13262A500),

Duke Energy Carolinas, LLC (the licens*ee) submitted a license amendment

request, which requested to modify Technical Specification 3.3.2, "Engineered Safety Features Actuation System (ESFAS) Instrumentation."

Specifically, the proposed change would modify the setpoint for Auxiliary Feedwater Pump Suction Transfer in support of your efforts to comply with NRC Order EA-12-049, "Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events."

The U.S. Nuclear Regulatory Commission staff has reviewed the licensee's submittal and determined that additional information is needed in order to complete our review. The enclosed document describes this request for additional information (RAI). On March 31, 2014, the Duke staff indicated that a response to the RAI would be provided by May 23, 2014. If you have any questions, please call me at 301-415-2481.

Docket Nos. 50-369 and 50-370

Enclosure:

Request for Additional Information cc w/encl: Distribution via Listserv G. Edward Miller, Project Manager Plant Licensing Branch 11-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation DRAFT REQUEST F0R ADDITIONAL INFORMATION

' MCGUIRE NUCLEAR STATION, UNITS 1 AND 2 PROPOSED CHANGES TO TECHNICAL SPECIFICATION 3.3.2 IN SUPPORT OF COMPLIANCE WITH NRC ORDER EA-12-049 DOCKET NOS. 50-369 AND 50-370 By letter dated September 12, 2013, (Agencywide Documents Access and Management System (ADAMS) Accession No. ML 13262A500),

Duke Energy Carolinas submitted a license amendment request (LAR) to amend the Technical Specifications (TS) 3.3.2, "Engineered Safety Feature Actuation System (ESFAS) Instrumentation,"

FUNCTION 6.f, "Auxiliary Feedwater Pump Suction Transfer on Suction Pressure-Low (c)" for McGuire Nuclear Station, Units 1 and 2, in support of plant modifications required to achieve compliance with the NRC Order EA-12-049, "Order Modifying Licenses with Regard to Requirements of Mitigation Strategies for Beyond-Design-Basis External Events,"

dated March 12, 2012. In order for the NRC staff to complete its review of the LAR, the following additional information is requested.

1. Provide an overall summary of calculations performed including the various tolerances used in calculating the total loop uncertainties, reference

accuracy, and drift indicating how they comply with applicable requirements of this request (e.g., General Design Criterion (GDC) 13, GDC 20, and 10 CFR 50.36(c)(1

)(ii)(a)).

Please ensure that the summary indicates how all these tolerances comply with the 95/95 confidence level specified in RG 1.1 05. 2. Provide representative plant procedures to demonstrate how the plant procedures comply with the TSTF-493 footnotes.

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

. April 9, 2014

SUBJECT:

MCGUIRE NUCLEAR STATION, UNITS 1 AND 2: REQUEST FOR ADDITIONAL INFORMATION REGARDING LICENSE AMENDMENT REQUEST TO MODIFY TECHNICAL SPECIFICATION 3.3.2 SETPOINT (TAG NOS. MF2741 AND MF2742)

Dear Mr. Capps:

By letter dated September 12, 2013 (Agencywide Documents Access and Management System (ADAMS) Accession Number ML 13262A500),

Duke Energy Carolinas, LLC (the licensee) submitted a license amendment

request, which requested to modify Technical Specification

• 3.3.2, "Engineered Safety Features Actuation System (ESFAS) Instrumentation."

Specifically, the proposed change would modify the setpoint for Auxiliary Feedwater Pump Suction Transfer in support of your efforts to comply with NRC Order EA-12-049, "Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events."

The U.S. Nuclear Regulatory Commission staff has reviewed the licensee's submittal and determined that additional information is needed in order to complete our review. The enclosed document describes this request for additional information (RAI). On March 31, 2014, the Duke staff indicated that a response to the RAI would be provided by May 23, 2014. ' If you have any questions, please call me at 301-415-2481.

Sincerely,

/RAJ G. Edward Miller, Project Manager Plant Licensing Branch 11-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-369 and 50-370

Enclosure:

Request for Additional Information cc w/encl: Distribution via Listserv DISTRIBUTION:

Public RidsAcrsAcnw_MaiiCTR Resource RidsNrrDeEicb Resource RidsNrrLASFigueroa Resource LPL2-1 R/F RidsNrrDorllpl2-1 Resource RidsNrrPMMcGuireResource (hard copy) RidsRgn2MaiiCenter Resource ADAMS Accession No ML14097A118 OFFICE NRR/LPL2-1

/PM NRR/LPL2-1

/LA NRR/DE/EICB/BC NAME GEMiller SFigueroa JThorp DATE 04/08/14 04/07/14 04/08/14 OFFICIAL RECORD COPY N R RILPL2-1

/BC RPascarelli 04/09/14