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{{#Wiki_filter:Tennessee Valley Authority, Post Office Box 2000, Decatur, Alabama 35609-2000 November 14, 2008 TVA-BFN-TS-418 10 CFR 50.90 TVA-BFN-TS-431 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Stop OWFN, P1-35 Washington, D. C. 20555-0001 In the Matter of ) Docket Nos. 50-259 Tennessee Valley Authority ) 50-260 50-296 BROWNS FERRY NUCLEAR PLANT (BFN) -UNITS 1, 2, AND 3 -TECHNICAL SPECIFICATIONS (TS) CHANGES TS-431 AND TS-418 -EXTENDED POWER UPRATE (EPU) -CORRECTION TO SCHEDULE LETTER REGARDING EPU (TAC NOS. MD5262, MD5263, AND MD5264)By letters dated June 28, 2004 and June 25, 2004 (ADAMS Accession Nos.ML041840109 and ML041840301), TVA submitted license amendment applications to NRC for the EPU operation of BFN Unit 1 and BFN Units 2 and 3, respectively.
{{#Wiki_filter:Tennessee Valley Authority, Post Office Box 2000, Decatur, Alabama 35609-2000 November 14, 2008 TVA-BFN-TS-418                                                                     10 CFR 50.90 TVA-BFN-TS-431 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Stop OWFN, P1-35 Washington, D. C. 20555-0001 In the Matter of                                       )                     Docket Nos. 50-259 Tennessee Valley Authority                             )                                 50-260 50-296 BROWNS FERRY NUCLEAR PLANT (BFN) - UNITS 1, 2, AND 3 - TECHNICAL SPECIFICATIONS (TS) CHANGES TS-431 AND TS-418 - EXTENDED POWER UPRATE (EPU) - CORRECTION TO SCHEDULE LETTER REGARDING EPU (TAC NOS. MD5262, MD5263, AND MD5264)
NRC provided acceptance letters for the EPU submittals on February 23, 2005 (ML050560150 and ML050560337).
By letters dated June 28, 2004 and June 25, 2004 (ADAMS Accession Nos.
The proposed amendments would change the operating licenses to increase the maximum authorized power level of each reactor by approximately 14 percent from the current licensed thermal power (CLTP) of 3458 megawatts thermal (MWt) to 3952 MWt. The only unresolved staff issue that TVA is aware of is the submittal and final review of the steam dryer structural integrity analysis.BFN Unit 1 and 2 EPU Status On October 31, 2008, TVA submitted a revised Unit 1 dryer stress report, the Unit 1 and 2 dryer load report, and the scale model test (SMT) report for both Units 1 and 2. A revised Unit 2 dryer stress report and the response to the two remaining dryer related RAIs from the draft Round 22 RAI were submitted on November 14, 2008. These submittals address all outstanding RAI questions for Unit 1 and Unit 2. Therefore, TVA is requesting that NRC complete the review and approval of the Unit 1 and 2 EPU license amendments so that implementation can begin prior to the 2009 summer peak demand.
ML041840109 and ML041840301), TVA submitted license amendment applications to NRC for the EPU operation of BFN Unit 1 and BFN Units 2 and 3, respectively. NRC provided acceptance letters for the EPU submittals on February 23, 2005 (ML050560150 and ML050560337). The proposed amendments would change the operating licenses to increase the maximum authorized power level of each reactor by approximately 14 percent from the current licensed thermal power (CLTP) of 3458 megawatts thermal (MWt) to 3952 MWt. The only unresolved staff issue that TVA is aware of is the submittal and final review of the steam dryer structural integrity analysis.
U.S. Nuclear Regulatory Commission Page 2 November 14, 2008_BFN Unit 3 EPU Status A full set of main steam line (MSL) strain gages was installed on the four MSLs during the Unit 3 refueling outage in Spring 2008 to collect data to complete the required Unit 3 steam dryer structural integrity analyses.
BFN Unit 1 and 2 EPU Status On October 31, 2008, TVA submitted a revised Unit 1 dryer stress report, the Unit 1 and 2 dryer load report, and the scale model test (SMT) report for both Units 1 and 2. A revised Unit 2 dryer stress report and the response to the two remaining dryer related RAIs from the draft Round 22 RAI were submitted on November 14, 2008. These submittals address all outstanding RAI questions for Unit 1 and Unit 2. Therefore, TVA is requesting that NRC complete the review and approval of the Unit 1 and 2 EPU license amendments so that implementation can begin prior to the 2009 summer peak demand.
However, a large number of the MSL gages failed during initial reactor heat-up from the refueling outage, which resulted in Unit 3 not having sufficient MSL gage data to perform the remainder of steam dryer EPU analyses.To repair the Unit 3 MSL strain gages prior to the next scheduled refueling outage, a lengthy mid-cycle outage is required.TVA is pursuing a planned Unit 3 mid-cycle outage in Fall 2009 to repair the MSL gages and collect MSL data to allow completion of the Unit 3 steam dryer structural integrity analyses.
 
This schedule provides sufficient time for the completion of the Unit 3 steam dryer analyses including submittal and NRC review with the goal of having the amendment approved in time for Unit 3 Cycle 15 operation, which starts in Spring 2010.EPU hardware changes and steam dryer structural integrity modifications would be implemented during the Cycle 14 refueling outage in Spring 2010.The original Units 2 and 3 EPU license amendment requests were submitted as a single request since the basis and justification for EPU operation were the same. Similarly, Units 2 and 3 RAls and TVA responses were the same for both units with the one exception being the Unit 3 steam dryer structural integrity analyses.
U.S. Nuclear Regulatory Commission Page 2 November 14, 2008
The original expectation by both TVA and NRC was that the Unit 2 and 3 EPU license applications would be approved together.
_BFN Unit 3 EPU Status A full set of main steam line (MSL) strain gages was installed on the four MSLs during the Unit 3 refueling outage in Spring 2008 to collect data to complete the required Unit 3 steam dryer structural integrity analyses. However, a large number of the MSL gages failed during initial reactor heat-up from the refueling outage, which resulted in Unit 3 not having sufficient MSL gage data to perform the remainder of steam dryer EPU analyses.
However, TVA recognizes that the schedule delay in obtaining and analyzing Unit 3 MSL data may necessitate separating the Unit 3 EPU approval from that of Unit 2.TVA understands that the majority of the Unit 3 review is complete and will be documented in a manner that facilitates efficient resumption of the licensing process in the Fall of 2009. TVA plans to submit the revised Unit 3 dryer stress report, dryer load report, and the Unit 3 SMT report no later than November 1, 2009.If you have any questions regarding this letter, please contact James Emens at (256)729-7658 Sincerely, Michael K. Brandon Interim Manager of Licensing and Industry Affairs U.S. Nuclear Regulatory Commission Page 3 November 14, 2008 cc: State Health Officer Alabama Dept. of Public Health RSA Tower -Administration Suite 1552 P.O. Box 303017 Montgomery, AL 36130-3017 Ms. Eva Brown, Project Manager U.S. Nuclear Regulatory Commission (MS 08G9)One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852-2739 Eugene F. Guthrie, Branch Chief U.S. Nuclear Regulatory Commission Region II Sam Nunn Atlanta Federal Center 61 Forsyth Street, SW, Suite 23T85 Atlanta, Georgia 30303-8931 NRC Resident Inspector Browns Ferry Nuclear Plant 10833 Shaw Road Athens, Alabama 35611-6970}}
To repair the Unit 3 MSL strain gages prior to the next scheduled refueling outage, a lengthy mid-cycle outage is required.
TVA is pursuing a planned Unit 3 mid-cycle outage in Fall 2009 to repair the MSL gages and collect MSL data to allow completion of the Unit 3 steam dryer structural integrity analyses. This schedule provides sufficient time for the completion of the Unit 3 steam dryer analyses including submittal and NRC review with the goal of having the amendment approved in time for Unit 3 Cycle 15 operation, which starts in Spring 2010.
EPU hardware changes and steam dryer structural integrity modifications would be implemented during the Cycle 14 refueling outage in Spring 2010.
The original Units 2 and 3 EPU license amendment requests were submitted as a single request since the basis and justification for EPU operation were the same. Similarly, Units 2 and 3 RAls and TVA responses were the same for both units with the one exception being the Unit 3 steam dryer structural integrity analyses. The original expectation by both TVA and NRC was that the Unit 2 and 3 EPU license applications would be approved together. However, TVA recognizes that the schedule delay in obtaining and analyzing Unit 3 MSL data may necessitate separating the Unit 3 EPU approval from that of Unit 2.
TVA understands that the majority of the Unit 3 review is complete and will be documented in a manner that facilitates efficient resumption of the licensing process in the Fall of 2009. TVA plans to submit the revised Unit 3 dryer stress report, dryer load report, and the Unit 3 SMT report no later than November 1, 2009.
If you have any questions regarding this letter, please contact James Emens at (256)729-7658 Sincerely, Michael K. Brandon Interim Manager of Licensing and Industry Affairs
 
U.S. Nuclear Regulatory Commission Page 3 November 14, 2008 cc:   State Health Officer Alabama Dept. of Public Health RSA Tower - Administration Suite 1552 P.O. Box 303017 Montgomery, AL 36130-3017 Ms. Eva Brown, Project Manager U.S. Nuclear Regulatory Commission (MS 08G9)
One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852-2739 Eugene F. Guthrie, Branch Chief U.S. Nuclear Regulatory Commission Region II Sam Nunn Atlanta Federal Center 61 Forsyth Street, SW, Suite 23T85 Atlanta, Georgia 30303-8931 NRC Resident Inspector Browns Ferry Nuclear Plant 10833 Shaw Road Athens, Alabama 35611-6970}}

Latest revision as of 12:02, 14 November 2019

Technical Specifications Changes TS-431 & TS-418 - Extended Power Uprate (EPU) - Correction to Schedule Letter Regarding EPU
ML083240224
Person / Time
Site: Browns Ferry  Tennessee Valley Authority icon.png
Issue date: 11/14/2008
From: Brandon M
Tennessee Valley Authority
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
TAC MD5262, TAC MD5263, TAC MD5264, TVA-BFN-TS-418, TVA-BFN-TS-431
Download: ML083240224 (3)
v • d • e


Text

Tennessee Valley Authority, Post Office Box 2000, Decatur, Alabama 35609-2000 November 14, 2008 TVA-BFN-TS-418 10 CFR 50.90 TVA-BFN-TS-431 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Stop OWFN, P1-35 Washington, D. C. 20555-0001 In the Matter of ) Docket Nos. 50-259 Tennessee Valley Authority ) 50-260 50-296 BROWNS FERRY NUCLEAR PLANT (BFN) - UNITS 1, 2, AND 3 - TECHNICAL SPECIFICATIONS (TS) CHANGES TS-431 AND TS-418 - EXTENDED POWER UPRATE (EPU) - CORRECTION TO SCHEDULE LETTER REGARDING EPU (TAC NOS. MD5262, MD5263, AND MD5264)

By letters dated June 28, 2004 and June 25, 2004 (ADAMS Accession Nos.

ML041840109 and ML041840301), TVA submitted license amendment applications to NRC for the EPU operation of BFN Unit 1 and BFN Units 2 and 3, respectively. NRC provided acceptance letters for the EPU submittals on February 23, 2005 (ML050560150 and ML050560337). The proposed amendments would change the operating licenses to increase the maximum authorized power level of each reactor by approximately 14 percent from the current licensed thermal power (CLTP) of 3458 megawatts thermal (MWt) to 3952 MWt. The only unresolved staff issue that TVA is aware of is the submittal and final review of the steam dryer structural integrity analysis.

BFN Unit 1 and 2 EPU Status On October 31, 2008, TVA submitted a revised Unit 1 dryer stress report, the Unit 1 and 2 dryer load report, and the scale model test (SMT) report for both Units 1 and 2. A revised Unit 2 dryer stress report and the response to the two remaining dryer related RAIs from the draft Round 22 RAI were submitted on November 14, 2008. These submittals address all outstanding RAI questions for Unit 1 and Unit 2. Therefore, TVA is requesting that NRC complete the review and approval of the Unit 1 and 2 EPU license amendments so that implementation can begin prior to the 2009 summer peak demand.

U.S. Nuclear Regulatory Commission Page 2 November 14, 2008

_BFN Unit 3 EPU Status A full set of main steam line (MSL) strain gages was installed on the four MSLs during the Unit 3 refueling outage in Spring 2008 to collect data to complete the required Unit 3 steam dryer structural integrity analyses. However, a large number of the MSL gages failed during initial reactor heat-up from the refueling outage, which resulted in Unit 3 not having sufficient MSL gage data to perform the remainder of steam dryer EPU analyses.

To repair the Unit 3 MSL strain gages prior to the next scheduled refueling outage, a lengthy mid-cycle outage is required.

TVA is pursuing a planned Unit 3 mid-cycle outage in Fall 2009 to repair the MSL gages and collect MSL data to allow completion of the Unit 3 steam dryer structural integrity analyses. This schedule provides sufficient time for the completion of the Unit 3 steam dryer analyses including submittal and NRC review with the goal of having the amendment approved in time for Unit 3 Cycle 15 operation, which starts in Spring 2010.

EPU hardware changes and steam dryer structural integrity modifications would be implemented during the Cycle 14 refueling outage in Spring 2010.

The original Units 2 and 3 EPU license amendment requests were submitted as a single request since the basis and justification for EPU operation were the same. Similarly, Units 2 and 3 RAls and TVA responses were the same for both units with the one exception being the Unit 3 steam dryer structural integrity analyses. The original expectation by both TVA and NRC was that the Unit 2 and 3 EPU license applications would be approved together. However, TVA recognizes that the schedule delay in obtaining and analyzing Unit 3 MSL data may necessitate separating the Unit 3 EPU approval from that of Unit 2.

TVA understands that the majority of the Unit 3 review is complete and will be documented in a manner that facilitates efficient resumption of the licensing process in the Fall of 2009. TVA plans to submit the revised Unit 3 dryer stress report, dryer load report, and the Unit 3 SMT report no later than November 1, 2009.

If you have any questions regarding this letter, please contact James Emens at (256)729-7658 Sincerely, Michael K. Brandon Interim Manager of Licensing and Industry Affairs

U.S. Nuclear Regulatory Commission Page 3 November 14, 2008 cc: State Health Officer Alabama Dept. of Public Health RSA Tower - Administration Suite 1552 P.O. Box 303017 Montgomery, AL 36130-3017 Ms. Eva Brown, Project Manager U.S. Nuclear Regulatory Commission (MS 08G9)

One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852-2739 Eugene F. Guthrie, Branch Chief U.S. Nuclear Regulatory Commission Region II Sam Nunn Atlanta Federal Center 61 Forsyth Street, SW, Suite 23T85 Atlanta, Georgia 30303-8931 NRC Resident Inspector Browns Ferry Nuclear Plant 10833 Shaw Road Athens, Alabama 35611-6970

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