ML103080184: Difference between revisions

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| number = ML103080184
| number = ML103080184
| issue date = 11/18/2010
| issue date = 11/18/2010
| title = St. Lucie Unit 1 - Analysis of Inadvertent Control Element Assembly Withdrawal at Power for the License Amendment Request for Extended Power Uprate
| title = Analysis of Inadvertent Control Element Assembly Withdrawal at Power for the License Amendment Request for Extended Power Uprate
| author name = Broaddus D A
| author name = Broaddus D
| author affiliation = NRC/NRR/DORL/LPLII-2
| author affiliation = NRC/NRR/DORL/LPLII-2
| addressee name = Nazar M
| addressee name = Nazar M
Line 17: Line 17:


=Text=
=Text=
{{#Wiki_filter:UNITED NUCLEAR REGULATORY WASHINGTON, D.C. 20555-0001 rtJveiller 18, 201 0 Mr. Mano Nazar Executive Vice President and Chief Nuclear Officer Florida Power & Light Co. P. O. Box 14000 700 Universe Boulevard Juno Beach, FL 33408-0420 ST. LUCIE UNIT 1 -ANALYSIS OF INADVERTENT CONTROL ELEMENT ASSEMBLY WITHDRAWAL AT POWER FOR THE LICENSE AMENDMENT REQUEST FOR EXTENDED POWER UPRATE  
{{#Wiki_filter:UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 rtJveiller 18, 201 0 Mr. Mano Nazar Executive Vice President and Chief Nuclear Officer Florida Power & Light Co.
P. O. Box 14000 700 Universe Boulevard Juno Beach, FL 33408-0420
 
==SUBJECT:==
ST. LUCIE UNIT 1 - ANALYSIS OF INADVERTENT CONTROL ELEMENT ASSEMBLY WITHDRAWAL AT POWER FOR THE LICENSE AMENDMENT REQUEST FOR EXTENDED POWER UPRATE


==Dear Mr. Nazar:==
==Dear Mr. Nazar:==
This purpose of this letter is to clarify the position of the U.S. Nuclear Regulatory Commission (NRC) with regard to the analysis of the inadvertent control element assembly withdrawal at power that your staff is preparing in support of a license amendment request for an extended power uprate (EPU) for the S1. Lucie Unit 1 (SL 1) plant, as indicated in a September 16, 2010, meeting with your staff and in subsequent telephone discussions.
 
The NRC staff understands that Florida Power and Light Company is using the AREVA Licensing Topical Report EMF-2310(P)(A), "SRP [Standard Review Plan] Chapter 15 Non-LOCA [Loss-of-Coolant Accident]
This purpose of this letter is to clarify the position of the U.S. Nuclear Regulatory Commission (NRC) with regard to the analysis of the inadvertent control element assembly withdrawal at power that your staff is preparing in support of a license amendment request for an extended power uprate (EPU) for the S1. Lucie Unit 1 (SL1) plant, as indicated in a September 16, 2010, meeting with your staff and in subsequent telephone discussions.
Methodology for Pressurized Water Reactors," in performing analyses related to FPL's submittal of a license amendment request for an EPU for SL 1. While the use of this topical report has been approved by the NRC, strict adherence to the methodology may not provide the information needed for review of the EPU, as identified by the NRC staff in item 4 of the enclosure to the NRC staff's letter dated August 13, 2010 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML 102240195).
The NRC staff understands that Florida Power and Light Company is using the AREVA Licensing Topical Report EMF-2310(P)(A), "SRP [Standard Review Plan] Chapter 15 Non-LOCA [Loss-of-Coolant Accident] Methodology for Pressurized Water Reactors," in performing analyses related to FPL's submittal of a license amendment request for an EPU for SL1. While the use of this topical report has been approved by the NRC, strict adherence to the methodology may not provide the information needed for review of the EPU, as identified by the NRC staff in item 4 of the enclosure to the NRC staff's letter dated August 13, 2010 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML102240195).
In particular, the methodology would not address an issue with parametric biasing communicated to your staff by telephone and email on September 1, 2010. Consistent with the NRC staff's safety evaluation related to the aforementioned topical report dated May 11, 2001 (ADAMS Accession No. ML011310533), acceptance review questions and/or a request for additional information may be issued requesting additional supporting assessment calculations needed to support the NRC staff's conclusions regarding the compliance of proposed operation of the S1. Lucie Nuclear Power Plant with NRC requirements.
In particular, the methodology would not address an issue with parametric biasing communicated to your staff by telephone and email on September 1, 2010. Consistent with the NRC staff's safety evaluation related to the aforementioned topical report dated May 11, 2001 (ADAMS Accession No. ML011310533), acceptance review questions and/or a request for additional information may be issued requesting additional supporting assessment calculations needed to support the NRC staff's conclusions regarding the compliance of proposed operation of the S1. Lucie Nuclear Power Plant with NRC requirements.
M. Nazar -2 If you have any questions regarding this matter, please contact Mr. Tracy J. Ort, the NRC project manager for St. Lucie Unit 1, at (301) 415-2788.
 
Sincerely, /_1/1//_
M. Nazar                                       -2 If you have any questions regarding this matter, please contact Mr. Tracy J. Ort, the NRC project manager for St. Lucie Unit 1, at (301) 415-2788.
Douglas A. Broaddus, Chief Plant Licensing Branch 11-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-335 cc: Distribution via Listserv t'bvErrber 18, 2010 M. Nazar -2 If you have any questions regarding this matter, please contact Mr. Tracy J. Orf, the NRC project manager for St. Lucie Unit 1, at (301) 415-2788.
Sincerely,
Sincerely, IRA! Douglas A. Broaddus, Chief Plant Licensing Branch 11-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-335 cc: Distribution via Listserv DISTRIBUTION:
                                        ~                  /_1/1//_
Public LPL2-2 rtf RidsNrrDorl RidsNrrDorlLpl2-2 RidsNrrPMStLucie RidsNrrLABClayton RidsNrrDssSrxb RidsRgn2MailCenter RidsAcrsAcnw
                                                ./~~A~~
_MaiICTR RidsOgcRp RidsNrrDorlDpr ADAMS Accession No 'ML 103080184.. OFFICE LPL2-2/PM LPL2-2/LA SRXB/BC LPL2-2/BC NAME TOrf BClayton AUlses DBroaddus DATE 11/05/2010 11/04/2010 11/05/2010 11/18/2010 OFFICIAL RECORD COpy}}
Douglas A. Broaddus, Chief Plant Licensing Branch 11-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-335 cc: Distribution via Listserv
 
t'bvErrber 18, 2010 M. Nazar                                         -2 If you have any questions regarding this matter, please contact Mr. Tracy J. Orf, the NRC project manager for St. Lucie Unit 1, at (301) 415-2788.
Sincerely, IRA!
Douglas A. Broaddus, Chief Plant Licensing Branch 11-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-335 cc: Distribution via Listserv DISTRIBUTION:
Public                             RidsNrrPMStLucie                    RidsAcrsAcnw_MaiICTR LPL2-2 rtf                         RidsNrrLABClayton                    RidsOgcRp RidsNrrDorl                       RidsNrrDssSrxb                      RidsNrrDorlDpr RidsNrrDorlLpl2-2                 RidsRgn2MailCenter ADAMS Accession No ..'ML103080184 OFFICE       LPL2-2/PM           LPL2-2/LA               SRXB/BC           LPL2-2/BC NAME         TOrf                 BClayton               AUlses             DBroaddus DATE         11/05/2010           11/04/2010               11/05/2010       11/18/2010 OFFICIAL RECORD COpy}}

Latest revision as of 07:39, 13 November 2019

Analysis of Inadvertent Control Element Assembly Withdrawal at Power for the License Amendment Request for Extended Power Uprate
ML103080184
Person / Time
Site: Saint Lucie  NextEra Energy icon.png
Issue date: 11/18/2010
From: Doug Broaddus
Plant Licensing Branch II
To: Nazar M
Florida Power & Light Co
Orf, T J, NRR/DORL/301-415-2788
References
Download: ML103080184 (3)
v • d • e


Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 rtJveiller 18, 201 0 Mr. Mano Nazar Executive Vice President and Chief Nuclear Officer Florida Power & Light Co.

P. O. Box 14000 700 Universe Boulevard Juno Beach, FL 33408-0420

SUBJECT:

ST. LUCIE UNIT 1 - ANALYSIS OF INADVERTENT CONTROL ELEMENT ASSEMBLY WITHDRAWAL AT POWER FOR THE LICENSE AMENDMENT REQUEST FOR EXTENDED POWER UPRATE

Dear Mr. Nazar:

This purpose of this letter is to clarify the position of the U.S. Nuclear Regulatory Commission (NRC) with regard to the analysis of the inadvertent control element assembly withdrawal at power that your staff is preparing in support of a license amendment request for an extended power uprate (EPU) for the S1. Lucie Unit 1 (SL1) plant, as indicated in a September 16, 2010, meeting with your staff and in subsequent telephone discussions.

The NRC staff understands that Florida Power and Light Company is using the AREVA Licensing Topical Report EMF-2310(P)(A), "SRP [Standard Review Plan] Chapter 15 Non-LOCA [Loss-of-Coolant Accident] Methodology for Pressurized Water Reactors," in performing analyses related to FPL's submittal of a license amendment request for an EPU for SL1. While the use of this topical report has been approved by the NRC, strict adherence to the methodology may not provide the information needed for review of the EPU, as identified by the NRC staff in item 4 of the enclosure to the NRC staff's letter dated August 13, 2010 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML102240195).

In particular, the methodology would not address an issue with parametric biasing communicated to your staff by telephone and email on September 1, 2010. Consistent with the NRC staff's safety evaluation related to the aforementioned topical report dated May 11, 2001 (ADAMS Accession No. ML011310533), acceptance review questions and/or a request for additional information may be issued requesting additional supporting assessment calculations needed to support the NRC staff's conclusions regarding the compliance of proposed operation of the S1. Lucie Nuclear Power Plant with NRC requirements.

M. Nazar -2 If you have any questions regarding this matter, please contact Mr. Tracy J. Ort, the NRC project manager for St. Lucie Unit 1, at (301) 415-2788.

Sincerely,

~ /_1/1//_

./~~A~~

Douglas A. Broaddus, Chief Plant Licensing Branch 11-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-335 cc: Distribution via Listserv

t'bvErrber 18, 2010 M. Nazar -2 If you have any questions regarding this matter, please contact Mr. Tracy J. Orf, the NRC project manager for St. Lucie Unit 1, at (301) 415-2788.

Sincerely, IRA!

Douglas A. Broaddus, Chief Plant Licensing Branch 11-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-335 cc: Distribution via Listserv DISTRIBUTION:

Public RidsNrrPMStLucie RidsAcrsAcnw_MaiICTR LPL2-2 rtf RidsNrrLABClayton RidsOgcRp RidsNrrDorl RidsNrrDssSrxb RidsNrrDorlDpr RidsNrrDorlLpl2-2 RidsRgn2MailCenter ADAMS Accession No ..'ML103080184 OFFICE LPL2-2/PM LPL2-2/LA SRXB/BC LPL2-2/BC NAME TOrf BClayton AUlses DBroaddus DATE 11/05/2010 11/04/2010 11/05/2010 11/18/2010 OFFICIAL RECORD COpy

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