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=Text=
=Text=
{{#Wiki_filter:OFFICIAL USE ONLY SENSITIVE INFORMATION Mr. Peter M. Orphanos UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 May 7, 2015 Site Vice President-Nine Mile Point Nuclear Station Exelon Generation Company, LLC 348 Lake Road Oswego, New York 13126  
{{#Wiki_filter:OFFICIAL USE ONLY SENSITIVE INFORMATION Mr. Peter M. Orphanos UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 May 7, 2015 Site Vice President-Nine Mile Point Nuclear Station Exelon Generation  
: Company, LLC 348 Lake Road Oswego, New York 13126  


==SUBJECT:==
==SUBJECT:==
NINE MILE POINT NUCLEAR STATION, UNIT NO. 2 -ISSUANCE OF SIMULATOR AUDIT REPORT RE: LICENSE AMENDMENT REQUEST REGARDING MELLLA PLUS (TAC NO. MF3056)  
NINE MILE POINT NUCLEAR STATION, UNIT NO. 2 -ISSUANCE OF SIMULATOR AUDIT REPORT RE: LICENSE AMENDMENT REQUEST REGARDING MELLLA PLUS (TAC NO. MF3056)  


==Dear Mr. Orphanos:==
==Dear Mr. Orphanos:==
By letter dated November 1, 2013, as supplemented by letters dated January 21, February 14, February 25, March 10, May 14, June 13, October 10, December 11, 2014, and February 18, 2015, Nine Mile Point Nuclear Station, Unit 2 (NMP2, the licensee), submitted a request with supplements for changes to the NMP2 Technical Specifications (TSs). The proposed amendment includes changes to the NMP2 TSs necessary to: (1) implement the Maximum Extended Load Line Limit Analysis Plus (MELLLA+) expanded operating domain; (2) change the stability solution to Detect and Suppress Solution -Confirmation Density (DSS-CD); (3) use the TRACG04 analysis code; and (4) increase the Safety Limit Minimum Critical Power Ratio (SLMCPR) for two recirculation loops in operation. In the course of its review, the U.S. Nuclear Regulatory Commission (NRC) staff determined that an on-site audit was necessary in order to complete the review. The audit was conducted on November 20, 2014. The NRC staff's audit report is enclosed. NOTICE: Enclosure to this letter contains Sensitive Information. Upon separation from the Enclosure, this letter is DECONTROLLED. OFFICIAL USE ONLY SENSITIVE INFORMATION OFFICIAL USE ONLY SENSITIVE INFORMATION P. M. Orphanos If you have any questions, please contact me at 301-415-3308. Docket No. 50-41 O  
 
By letter dated November 1, 2013, as supplemented by letters dated January 21, February 14, February 25, March 10, May 14, June 13, October 10, December 11, 2014, and February 18, 2015, Nine Mile Point Nuclear Station, Unit 2 (NMP2, the licensee),
submitted a request with supplements for changes to the NMP2 Technical Specifications (TSs). The proposed amendment includes changes to the NMP2 TSs necessary to: (1) implement the Maximum Extended Load Line Limit Analysis Plus (MELLLA+)
expanded operating domain; (2) change the stability solution to Detect and Suppress Solution  
-Confirmation Density (DSS-CD);  
(3) use the TRACG04 analysis code; and (4) increase the Safety Limit Minimum Critical Power Ratio (SLMCPR) for two recirculation loops in operation.
In the course of its review, the U.S. Nuclear Regulatory Commission (NRC) staff determined that an on-site audit was necessary in order to complete the review. The audit was conducted on November 20, 2014. The NRC staff's audit report is enclosed.
NOTICE: Enclosure to this letter contains Sensitive Information.
Upon separation from the Enclosure, this letter is DECONTROLLED.
OFFICIAL USE ONLY SENSITIVE INFORMATION OFFICIAL USE ONLY SENSITIVE INFORMATION P. M. Orphanos If you have any questions, please contact me at 301-415-3308.
Docket No. 50-41 O  
 
==Enclosure:==
 
Simulator Audit Report cc w/o encl: Distribution via Listserv Sincerely, Bhalchandra Vaidya, Project Manager Plant Licensing Branch 1-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation OFFICIAL USE ONLY SENSITIVE INFORMATION OFFICIAL USE ONLY SENSITIVE INFORMATION P.M. Orphanos If you have any questions, please contact me at 301-415-3308.
Docket No. 50-410


==Enclosure:==
==Enclosure:==
Simulator Audit Report cc w/o encl: Distribution via Listserv Sincerely, Bhalchandra Vaidya, Project Manager Plant Licensing Branch 1-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation OFFICIAL USE ONLY SENSITIVE INFORMATION 


Package: ML 15114A231  
Simulator Audit Report Sincerely, IRA/ Bhalchandra Vaidya, Project Manager Plant Licensing Branch 1-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation cc w/o encl: Distribution via Listserv DISTRIBUTION:
PUBLIC RidsNrrDssSrxb Resource Rids NrrDeEicb RidsAcrsAcnw_MailCTR RidsNrrDorlLPL 1-1 DSchroder, Region 1 RidsNrrDORLDPR A.Guzzetta, DSS/SSIB B. Beasley, DORL/PLB-1 LPLl-1 R/F RidsNrrDraAphb Resource RidsRgn1 MailCenter RidsNrrLAKGoldstein RidsNrrPMNineMilePoint Jose March-Leuba, ORNL DaBin Ki, DRA/APHB G. Thomas, DSS/SRXB G. Lapinsky, DRA/APHB ADAMS Accession Nos.: Package:
ML 15114A231  


==Enclosure:==
==Enclosure:==
ML 15114A174 Cover Letter: ML 15114A160 OFFICE DORL/LPL 1-1\PM DORL/LPL 1-1\LA DORL/LPL 1-1/BC(A) DORL/LPL 1-1 /PM NAME BVaidya KGoldstein MDudek BVaidya DATE 05/05/2015 05/05/2015 05/06/2015 05/07/2015}}
 
ML 15114A174 Cover Letter: ML 15114A160 OFFICE DORL/LPL 1-1\PM DORL/LPL 1-1\LA DORL/LPL 1-1/BC(A)
DORL/LPL 1-1 /PM NAME BVaidya KGoldstein MDudek BVaidya DATE 05/05/2015 05/05/2015 05/06/2015 05/07/2015 OFFICIAL RECORD COPY OFFICIAL USE ONLY SENSITIVE INFORMATION}}

Revision as of 02:23, 1 July 2018

Nine Mile Point Nuclear Station, Unit 2 - Issuance of Simulator Audit Report License Amendment Request Regarding MELLLA Plus (TAC No. MF3056)
ML15114A160
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 05/07/2015
From: Bhalchandra Vaidya
Plant Licensing Branch 1
To: Orphanos P M
Exelon Generation Co
Vaidya B K, NRR/DORL/LPL1-1, 415-3308
Shared Package
ML15114A231 List:
References
TAC MF3056
Download: ML15114A160 (3)
v • d • e


Text

OFFICIAL USE ONLY SENSITIVE INFORMATION Mr. Peter M. Orphanos UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 May 7, 2015 Site Vice President-Nine Mile Point Nuclear Station Exelon Generation

Company, LLC 348 Lake Road Oswego, New York 13126

SUBJECT:

NINE MILE POINT NUCLEAR STATION, UNIT NO. 2 -ISSUANCE OF SIMULATOR AUDIT REPORT RE: LICENSE AMENDMENT REQUEST REGARDING MELLLA PLUS (TAC NO. MF3056)

Dear Mr. Orphanos:

By letter dated November 1, 2013, as supplemented by letters dated January 21, February 14, February 25, March 10, May 14, June 13, October 10, December 11, 2014, and February 18, 2015, Nine Mile Point Nuclear Station, Unit 2 (NMP2, the licensee),

submitted a request with supplements for changes to the NMP2 Technical Specifications (TSs). The proposed amendment includes changes to the NMP2 TSs necessary to: (1) implement the Maximum Extended Load Line Limit Analysis Plus (MELLLA+)

expanded operating domain; (2) change the stability solution to Detect and Suppress Solution

-Confirmation Density (DSS-CD);

(3) use the TRACG04 analysis code; and (4) increase the Safety Limit Minimum Critical Power Ratio (SLMCPR) for two recirculation loops in operation.

In the course of its review, the U.S. Nuclear Regulatory Commission (NRC) staff determined that an on-site audit was necessary in order to complete the review. The audit was conducted on November 20, 2014. The NRC staff's audit report is enclosed.

NOTICE: Enclosure to this letter contains Sensitive Information.

Upon separation from the Enclosure, this letter is DECONTROLLED.

OFFICIAL USE ONLY SENSITIVE INFORMATION OFFICIAL USE ONLY SENSITIVE INFORMATION P. M. Orphanos If you have any questions, please contact me at 301-415-3308.

Docket No. 50-41 O

Enclosure:

Simulator Audit Report cc w/o encl: Distribution via Listserv Sincerely, Bhalchandra Vaidya, Project Manager Plant Licensing Branch 1-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation OFFICIAL USE ONLY SENSITIVE INFORMATION OFFICIAL USE ONLY SENSITIVE INFORMATION P.M. Orphanos If you have any questions, please contact me at 301-415-3308.

Docket No. 50-410

Enclosure:

Simulator Audit Report Sincerely, IRA/ Bhalchandra Vaidya, Project Manager Plant Licensing Branch 1-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation cc w/o encl: Distribution via Listserv DISTRIBUTION:

PUBLIC RidsNrrDssSrxb Resource Rids NrrDeEicb RidsAcrsAcnw_MailCTR RidsNrrDorlLPL 1-1 DSchroder, Region 1 RidsNrrDORLDPR A.Guzzetta, DSS/SSIB B. Beasley, DORL/PLB-1 LPLl-1 R/F RidsNrrDraAphb Resource RidsRgn1 MailCenter RidsNrrLAKGoldstein RidsNrrPMNineMilePoint Jose March-Leuba, ORNL DaBin Ki, DRA/APHB G. Thomas, DSS/SRXB G. Lapinsky, DRA/APHB ADAMS Accession Nos.: Package:

ML 15114A231

Enclosure:

ML 15114A174 Cover Letter: ML 15114A160 OFFICE DORL/LPL 1-1\PM DORL/LPL 1-1\LA DORL/LPL 1-1/BC(A)

DORL/LPL 1-1 /PM NAME BVaidya KGoldstein MDudek BVaidya DATE 05/05/2015 05/05/2015 05/06/2015 05/07/2015 OFFICIAL RECORD COPY OFFICIAL USE ONLY SENSITIVE INFORMATION

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