Letter Sequence Response to RAI |
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Results
Other: ML14195A221, ML14237A194, ML15030A229, ML15076A468, ML15092A224, ML15092A243, ML15098A175, ML15341A261, ML16005A399, ML16011A009, ML16011A011, ML16011A012, ML16011A013, ML16011A014, ML16011A032, ML16011A036, ML16187A173, ML16270A567, ML16330A117, NRC-16-0014, Comments on the Nrc'S Safety Evaluation Report with Open Items Related to the License Renewal, NRC-16-0061, DTE Response to NRC Generic Letter 2016-01, Monitoring of Neutron-Absorbing Materials in Spent Fuel Pools.
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MONTHYEARML14195A2212014-07-24024 July 2014 Plan for Scoping and Screening Regulatory Audit Regarding the Fermi 2 License Renewal Application Review Project stage: Other ML14237A1942014-09-0505 September 2014 Plan for the Aging Management Program Regulatory Audit Regarding the Fermi 2 License Renewal Application Review Project stage: Other NRC-14-0070, Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 12014-10-24024 October 2014 Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 1 Project stage: Response to RAI ML14288A6802014-10-29029 October 2014 Requests for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 3 Project stage: RAI NRC-14-0072, Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 22014-11-18018 November 2014 Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 2 Project stage: Response to RAI ML14322A1782014-11-26026 November 2014 Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 5 Project stage: RAI NRC-14-0076, Response to NRC Request for Additional Information for the Review of the License Renewal Application - Set 32014-12-0101 December 2014 Response to NRC Request for Additional Information for the Review of the License Renewal Application - Set 3 Project stage: Response to RAI NRC-14-0083, Response to NRC Request for Additional Information for the Review of License Renewal Application - Sets 4, 5, and 62014-12-30030 December 2014 Response to NRC Request for Additional Information for the Review of License Renewal Application - Sets 4, 5, and 6 Project stage: Response to RAI NRC-15-0001, Response to NRC Request for Additional Information for the Review License Renewal Application - Set 72015-01-0505 January 2015 Response to NRC Request for Additional Information for the Review License Renewal Application - Set 7 Project stage: Response to RAI NRC-15-0013, Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Severe Accident Mitigation Alternatives2015-01-0909 January 2015 Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Severe Accident Mitigation Alternatives Project stage: Response to RAI NRC-15-0009, Response to NRC Request for Additional Information for the Review of License Renewal Application - Set 152015-01-15015 January 2015 Response to NRC Request for Additional Information for the Review of License Renewal Application - Set 15 Project stage: Response to RAI NRC-15-0006, Response to NRC Request for Additional Information for the Review of License Renewal Application - Set 112015-01-20020 January 2015 Response to NRC Request for Additional Information for the Review of License Renewal Application - Set 11 Project stage: Response to RAI NRC-15-0012, Response to NRC Request for Additional Information for the Review of License Renewal Application - Set 182015-01-30030 January 2015 Response to NRC Request for Additional Information for the Review of License Renewal Application - Set 18 Project stage: Response to RAI NRC-15-0022, Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 12 Questions 4.2.2-1 and 4.2.2-2 and Set 15 Question 4.2.6-12015-01-30030 January 2015 Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 12 Questions 4.2.2-1 and 4.2.2-2 and Set 15 Question 4.2.6-1 Project stage: Response to RAI NRC-15-0010, Response to NRC Request for Additional Information for the Review of License Renewal Application - Set 162015-02-0505 February 2015 Response to NRC Request for Additional Information for the Review of License Renewal Application - Set 16 Project stage: Response to RAI ML15030A2292015-02-11011 February 2015 AMP Audit Summary Report Enclosure Project stage: Other NRC-15-0011, Response to NRC Request for Additional Information for the Review of the License Renewal Application - Set 172015-02-12012 February 2015 Response to NRC Request for Additional Information for the Review of the License Renewal Application - Set 17 Project stage: Response to RAI NRC-15-0029, Response to NRC Request for Additional Information for the Review of License Renewal Application - Set 11 Question B.1.22-12015-02-19019 February 2015 Response to NRC Request for Additional Information for the Review of License Renewal Application - Set 11 Question B.1.22-1 Project stage: Response to RAI ML15051A3482015-02-24024 February 2015 Schedule Revision and Project Manager Change for the Review of the Fermi 2 License Renewal Application Project stage: Approval NRC-15-0020, Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Sets 19, 20, and 212015-03-0505 March 2015 Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Sets 19, 20, and 21 Project stage: Response to RAI NRC-15-0023, Response to NRC Request for Additional Information for the Environmental Review of the License Renewal Application - Severe Accident Mitigation Alternatives Set 22015-03-0505 March 2015 Response to NRC Request for Additional Information for the Environmental Review of the License Renewal Application - Severe Accident Mitigation Alternatives Set 2 Project stage: Response to RAI ML15051A5092015-03-11011 March 2015 Summary of Telecon Drai Set 24 - February 9, 2015 Project stage: RAI ML15051A3172015-03-11011 March 2015 Requests for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 24 Project stage: RAI ML15051A4202015-03-13013 March 2015 Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 23 Project stage: RAI ML15062A3362015-03-13013 March 2015 Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 26 Project stage: RAI ML15054A1712015-03-13013 March 2015 Request for Withholding Information from Public Disclosure Project stage: Withholding Request Acceptance ML15072A2132015-03-19019 March 2015 Request for Withholding Information from Public Disclosure Project stage: Withholding Request Acceptance ML15072A0812015-03-19019 March 2015 Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 25 Project stage: RAI ML15070A1612015-03-19019 March 2015 Request for Withholding Information from Public Disclosure Project stage: Withholding Request Acceptance ML15051A5072015-03-19019 March 2015 Summary of Telecom Drai Sets 4, 5 and 6 - November 14 2014 Project stage: RAI ML15077A1082015-03-26026 March 2015 Requests for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 27 Project stage: RAI ML15082A0462015-03-26026 March 2015 Requests for Additional Information for the Review of the Fermi, Unit 2 License Renewal Application - Set 29, Project stage: RAI ML15078A3372015-03-26026 March 2015 Request for Additional Information for the Review of the Fermi, Unit 2 License Renewal Application - Set 28 Project stage: RAI ML15085A5132015-04-0202 April 2015 Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 31 Project stage: RAI ML15099A0162015-04-22022 April 2015 Requests for Additional Information for the Review of the Fermi 2 License Renewal Application Set 32 Project stage: RAI ML15092A2432015-04-22022 April 2015 Summary of Telephone Conference Call Held on November 19, 2014, Between the U.S. Nuclear Regulatory Commission and DTE Electric Concerning Set 7 - November 19, 2014 Project stage: Other ML15076A4682015-04-22022 April 2015 Summary of Telephone Conference Call Held on February 13, 2015, Between the U.S. Nuclear Regulatory Commission and DTE Electric Company Project stage: Other ML15099A6632015-04-23023 April 2015 Request for Withholding Information from Public Disclosure Project stage: Withholding Request Acceptance ML15082A1882015-04-27027 April 2015 Summary of Conference Call Held on March 16, 2015, Between the U.S. NRC and DTE Electric Company, Concerning Requests for Additional Information, Set 27 Pertaining to the Fermi 2 License Renewal Application Project stage: RAI ML15072A2032015-04-27027 April 2015 Summary of Teleconference March 6, 2015 Between the U.S. NRC and DTE Electric Company, Concerning RAI Pertaining to the Fermi 2 License Renewal Application Project stage: RAI ML15104A5142015-05-0101 May 2015 Summary of Telephone Conference Call Held on November 25, 2014, Between the U.S. Nuclear Regulatory Commission and DTE Electric Company, Concerning RAIs Pertaining to the Fermi 2 LRA Project stage: RAI NRC-15-0045, Response to NRC Request for Additional Information for the Environmental Review of the License Renewal Application - Severe Accident Mitigation Alternatives Set 32015-05-0808 May 2015 Response to NRC Request for Additional Information for the Environmental Review of the License Renewal Application - Severe Accident Mitigation Alternatives Set 3 Project stage: Response to RAI ML15117A5642015-05-13013 May 2015 Summary of Telephone Conference Call Held on April 10, 2015, Between the U.S. Nuclear Regulatory Commission and DTE Electric Company, Concerning RAIs Pertaining to the Fermi 2 LRA Project stage: RAI ML15113A1982015-05-13013 May 2015 Summary of Telephone Conference Call Held on December 8, 2014, Between the U.S. Nuclear Regulatory Commission and DTE Electric Company, Concerning RAIs Pertaining to the Fermi 2 LRA Project stage: RAI ML15104A3882015-05-13013 May 2015 Summary of Telephone Conference Call Held on March 25, 2015, Between the U.S. Nuclear Regulatory Commission and DTE Electric Company, Concerning RAIs Pertaining to the Fermi 2 LRA Project stage: RAI ML15098A3022015-05-13013 May 2015 Summary of Telephone Conference Call Held on April 7,2015, Between the U.S.Nuclear Regulatory Commission and DTE Electric Company, Concerning RAIs Pertaining to the Fermi 2 LRA Project stage: RAI ML15098A1752015-05-13013 May 2015 Summary of Telephone Conference Call Held on March 17,2015, Between the Us Nuclear Regulatory Commission Project stage: Other ML15126A0042015-05-15015 May 2015 Requests for Additional Information for the Review of the Fermi 2 License Renewal Application-Set 34 Project stage: RAI ML15104A6322015-05-15015 May 2015 Summary of Telephone Conference Call Held on November 17, 2014 Between NRC and DTE Electric Co Re Requests for Additional Information on Fermi 2 License Renewal Application Project stage: RAI ML15132A4272015-05-18018 May 2015 March 27, 2015 Summary of Telephone Conference Call Held Between the U.S. NRC and DTE Electric Company Concerning Requests for Additional Information Pertaining to the Severe Accident Mitigation Alternatives Review of the Fermi, Unit 2 Project stage: RAI 2015-02-19
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Similar Documents at Fermi |
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Category:Letter type:NRC
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Text
Vito A. Kaminskas Site Vice President DTE Energy Company 6400 N. Dixie Hi'ghway, Newport, MI 48166 Tel: 734.586.6515 Fax: 734.586.4172 Email: kaminskasv@dteenergy.com DYE Ensergy 10 CFR 54 February 19, 2015 NRC-15-0029 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington D C 20555-0001
References:
- 1) Fermi 2 NRC Docket No. 50-341 NRC License No. NPF-43
- 2) DTE Electric Company Letter to NRC, "Fermi 2 License Renewal Application," NRC-14-0028, dated April 24, 2014 (ML14121A554)
- 3) NRC Letter, "Requests for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 11 (TAC No.
MF4222)," dated December 19, 2014 (ML14342A938)
- 4) DTE Electric Company Letter to NRC, "Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application - Set 11," NRC-15-0006, dated January 20, 2015 (ML15021A433)
Subject:
Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application -
Set 11 Question B.1.22-1 In Reference 2, DTE Electric Company (DTE) submitted the License Renewal Application (LRA) for Fermi 2. In Reference 3, NRC staff requested additional information regarding the Fermi 2 LRA. The DTE responses to the requests for additional information (RAIs) in Set 11 except for RAI B.1.22-1 were provided in Reference 4. The Enclosure to this letter provides the DTE response to RAI B.1.22-1.
No new commitments are being made in this submittal.
Should you have any questions or require additional information, please contact Lynne Goodman at 734-586-1205.
USNRC NRC-15-0029 Page 2 I declare under penalty of perjury that the foregoing is true and correct.
Executed on ebruary , 2015 Vito A. Kaminskas Site Vice President Nuclear Generation
Enclosure:
DTE Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application -
Set 11 Question B.1.22-1 cc: NRC Project Manager NRC License Renewal Project Manager NRC Resident Office Reactor Projects Chief, Branch 5, Region III Regional Administrator, Region III Michigan Public Service Commission, Regulated Energy Division (kindschl@ michigan.gov)
Enclosure to NRC-15-0029 Fermi 2 NRC Docket No. 50-341 Operating License No. NPF-43 DTE Response to NRC Request for Additional Information for the Review of the Fermi 2 License Renewal Application -
Set 11 Question B.1.22-1
Enclosure to NRC-15-0029 Page 1 RAI B.1.22-1
Background
The LRA states that the Inservice Inspection - IWF Program,with enhancements, is consistent with GALL Report AMP XI. S3, "ASME Section XI, Subsection IWF." The "detection of aging effects" program element in GALL Report AMP XI. S3 recommends that,for high-strength structuralbolting (actual measuredyield strength greaterthan or equal to 150 ksi) in sizes greater than 1 inch nominal diameter,volumetric examinations should be performed in addition to VT-3 to detect cracking. The GALL Report AMP XLS3 has the following recommendations for aging management of high-strength structuralbolting:
- The "scope of program"program element states that the scope of the program includes high-strengthstructuralbolting.
o The "preventive actions" program element recommends using bolting materialthat has an actualmeasured yield strength that is less than 150 ksi.
- The "parametersmonitored or inspected" program element recommends that high-strength structuralbolting susceptible to SCC be monitoredfor cracking.
o The "detection of aging effects" program element states that the volumetric examination may be waived with adequateplant-specificjustification.
Issue LRA Section B.1.22, "Inservice Inspection - IW, " includes enhancements to revise plant procedures to identify unacceptable conditions such as "cracked or shearedbolts, including high-strengthbolts." However it is not clear whether there are high-strength structuralbolts (actualmeasured yield strength greaterthan or equal to 150 ksi) in sizes greaterthan 1 inch nominal diameter within the scope of the Inservice Inspection - IWF Program. In addition, it is not clear how the applicantplans to manage agingfor these components consistent with GALL Report AMP XLS3 recommendations in the "preventive actions" and "parametersmonitored or inspected" program elements described above.
The LRA also states that "[p]lantproceduresprohibit the use of lubricantscontaining molybdenum disulfide. Since the use of this type of lubricantis prohibitedin plantprocedures and plantproceduresprovide the technical guidancefor installationrequirements[...], the potentialfor [SCC]for high-strength structuralbolting material, i.e., ASTMA325 andA490, is not plausible." Given that the use of molybdenum disulfide is not the only contributorto SCC of high-strength bolts; the staff has not determined that there is sufficient basis to conclude that SCC is not a credible aging effect for high-strength structuralbolting (actual measuredyield strength greaterthan or equal to 150 ksi) in sizes greaterthan 1 inch diameter. If there are high-strength structuralbolts (actual measuredyield strength greaterthan or equal to 150 ksi) in sizes greaterthan 1 inch diameter within the scope of license renewal, the staff needs additional information regardingthe environments to which these bolts are exposed to evaluate the applicant'sclaim that there is no potentialfor SCC.
Enclosure to NRC-15-0029 Page 2 Request (1) State whether or not there are high-strength structuralbolts (actualmeasuredyield strength greaterthan or equal to 150 ksi) in sizes greater than 1 inch diameterwithin the scope of the Inservice Inspection - IWF Program.
(2) If high strength structural bolts (actualmeasured yield strength greaterthan or equal to 150 ksi) in sizes greater than 1 inch diameter are within the scope of the Inservice Inspection -
IWF Program,state how the recommendations will be implementedfor the Inservice Inspection - IWF Program:
(a) Provide additional information regardingthe environments to which bolts are exposed.
(b) State whether the recommendationsfor managing degradationof high-strengthbolts described in the "preventive actions" and "parametersmonitored or inspected" of the GALL Report AMP XI.S3 will be implementedfor the Inservice Inspection - IWF Program.
Response
(1) DTE has identified one instance of high-strength structural bolting with actual measured yield strength greater than or equal to 150 ksi in sizes greater than 1 inch diameter within the scope of the Inservice Inspection - IWF Program: the RPV skirt to ring girder bolted joint, which contains sixty 2-1/2" x 9-7/8" ASTM A490 bolts. These bolts are covered in the Inservice Inspection - IWF Program for visual inspection.
There are no other high-strength structural bolts with actual measured yield strength greater than or equal to 150 ksi in sizes greater than 1 inch diameter within the scope of the Inservice Inspection - IWF Program. This conclusion is based on the following:
- 1. The Fermi 2 pipe erection specification does not specify use of high-strength material.
- 2. The Fermi 2 concrete anchor specification and drawing do not specify the use of high-strength bolts.
- 3. A 100% review of all hanger sketch bill of materials for the representative sample of ASME Section XI Class 1, 2, and 3 component supports inspected each Inservice Inspection 10-year interval did not find any high-strength bolts greater than 1 inch diameter identified.
(2) (a) These bolts are installed in the lower area of the bioshield annulus which is a dry and relatively cool area of the drywell. During operation, the drywell is inerted with nitrogen.
The thread lubricant used is Never-Seez #NS-160 which is a copper, aluminum, graphite based thread lubricant not containing molybdenum disulfide. Because this is a non-corrosive and low temperature environment, stress corrosion initiation in these bolts is
Enclosure to NRC-15-0029 Page 3 not credible. In addition, NUREG-1801 indicates (for item TP-300) that ASTM A490 bolts used in structural applications have not been shown to be prone to stress corrosion cracking and that stress corrosion cracking potential need not be evaluated for these bolts.
(b) The recommendations in the "preventive actions" program element of NUREG-1801 AMP XI.S3 will be implemented for the high-strength bolts in the Fermi 2 Inservice Inspection - IWF Program. LRA Section B.1.22 includes enhancements to the preventive actions program element in order to implement the Inservice Inspection - IWF Program consistent with NUREG-1801 AMP XI.S3.
NUREG-1801 AMP XI.S3 "detection of aging effects" program element states that volumetric examination may be waived with adequate plant-specific justification. Part 2 (a) of this response provides the plant-specific justification for waiving volumetric examination of Fermi 2 high-strength bolting identified in Part 1 of this response.
Volumetric examination of high-strength bolts will not be implemented for the Inservice Inspection - IWF Program. The volumetric examination of high-strength bolting susceptible to stress corrosion cracking discussed in program elements 3 and 4 of NUREG-1801 AMP XI.S3 does not apply to Fermi 2 because there are no Fermi 2 high-strength bolts susceptible to stress corrosion cracking.
LRA Revisions:
None.