ML062150557

Bulletin 2004-01, Inspections of Alloy 82/182/600 Materials Used in the Fabrication of Pressurizer Penetrations.

ML062150557
Person / Time
Site:	Davis Besse
Issue date:	09/08/2006
From:	Campbell S J NRC/NRR/ADRO/DORL/LPLIII-2
To:	Bezilla M B FirstEnergy Nuclear Operating Co
Campbell S J, NRC/NRR/DORL, 415-1486
References
IEB-04-001, TAC MC3475
Download: ML062150557 (7)

Text

September 8, 2006Mark B. BezillaVice President FirstEnergy Nuclear Operating Company Davis-Besse Nuclear Power Station Mail Stop A-DB-3080 5501 North State Route 2 Oak Harbor, OH 43449-9760

SUBJECT:

BULLETIN 2004-01, "INSPECTIONS OF ALLOY 82/182/600 MATERIALS USEDIN THE FABRICATION OF PRESSURIZER PENETRATIONS AND STEAM SPACE PIPING CONNECTIONS AT PRESSURIZED-WATER REACTORS,"

RESPONSE FOR DAVIS-BESSE NUCLEAR POWER STATION, UNIT 1(TAC NO. MC3475)

Dear Mr. Bezilla:

On May 28, 2004, the U.S. Nuclear Regulatory Commission (NRC) issued Bulletin 2004-01,"Inspections of Alloy 82/182/600 Materials Used in the Fabrication of Pressurizer Penetrations and Steam Space Piping Connections at Pressurized-Water Reactors," to the industry. This bulletin informed addressees that current methods of inspecting the pressurizer penetrations and steam space piping connections fabricated from Alloy 82/182/600 materials may need to be supplemented with additional measures (e.g., bare-metal visual inspections) to detect pressurizer penetration and steam space piping connection flaws or leakage. The bulletin requested that addressees provide the NRC with information related to the materials ofconstruction, the inspections that have been performed, and the inspections which will beperformed to verify the integrity of the pressurizer penetrations and steam space piping connections. The following requested information documented in Bulletin 2004-01, item (1), pertaining toyour plant was required within 60 days of the May 28, 2004, date of the bulletin:(a)a description of the pressurizer penetrations and steam space pipingconnections,(b)a description of the inspection program for Alloy 82/182/600 pressurizerpenetrations and steam space piping connections that has been implemented,(c)a description of the Alloy 82/182/600 pressurizer penetration and steam spacepiping connection inspection program that will be implemented during the nextand subsequent refueling outages, and M. Bezilla- 2 -(d)in light of the information discussed in the bulletin and your understanding of therelevance of recent industry operating experience to your facility, an explanationwhy the inspection program identified in your response to item (1)(c) above is adequate for the purpose of maintaining the integrity of your facility's reactorcoolant pressure boundary (RCPB) and for meeting all applicable regulatory requirements.Furthermore, documented in Bulletin 2004-01, item (2), was a request that within 60 days ofplant restart following the next inspection of the Alloy 82/182/600 pressurizer penetrations andsteam space piping connections, you should either:(a)submit to the NRC a statement indicating that the inspections described in yourresponse to item (1)(c) of this bulletin were completed and a description of the as-found condition of the pressurizer shell, any findings of relevant indications of through-wall leakage, followup non-destructive examination (NDE) performed to characterize flaws in leaking penetrations or steam space piping connections, a summary of all relevant indications found by NDE, a summary of the disposition of any findings of boric acid, and any corrective actions taken and/or repairs made as a result of the indications found or (b)if you were unable to complete the inspections described in response toitem (1)(c) of this bulletin, submit to the NRC a summary of the inspectionsperformed, the extent of the inspections, the methods used, a description of theas-found condition of the pressurizer shell, any findings of relevant indications of through-wall leakage, followup NDE performed to characterize flaws in leaking penetrations or steam space piping connections, a summary of all relevant indications found by NDE, a summary of the disposition of any findings of boric acid, and any corrective actions taken and/or repairs made as a result of the indications found. In addition, supplement the answer which you provided to item (1)(d) above to explain why the inspections that you completed were adequate for the purpose of maintaining the integrity of your facility's RCPB andfor meeting all applicable regulatory requirements which pertain to your facility.By letter dated July 26, 2004, as supplemented by letter dated August 22, 2005, you providedyour responses to items (1)(a), (1)(b), (1)(c), and (1)(d) of Bulletin 2004-01 for Davis-Besse Nuclear Power Station, Unit 1 (Davis-Besse). Your responses described its materials of fabrication and past, current and future pressurizer penetrations and steam space piping inspection programs at Davis-Besse.Your response to item (1)(a) reported that some of the materials used in the fabrication of thepressurizer penetrations and steam space piping connections were Alloy 82/182/600 materials.

This reply required you to provide further responses to the remaining items in the bulletin.In response to item (1)(b), you described prior inspections and inspection results of pressurizerpenetrations and steam space piping connections which had been performed at Davis-Besse.

Your response included the basis for concluding that Davis-Besse satisfies the applicable regulatory requirements related to the integrity of pressurizer penetrations and steam space M. Bezilla- 3 -piping connections. In response to item (1)(c), you provided a description of the Alloy 82/182/600 pressurizerpenetration and steam space piping connection inspection program that will be implemented atyour plant during the next and subsequent refueling outages. The description included the items to be inspected; the percent coverage that would be performed at eachlocation; the inspection methods to be used; the qualification standards for the inspectionmethods and personnel; the process used to resolve any inspection indications; the inspection documentation to be generated; and the basis for concluding that your plant will satisfy theapplicable regulatory requirements related to the structural and leakage integrity of pressurizer penetrations and steam space piping connections. If leaking pressurizer penetrations or steam space piping connections are found, you indicated that follow-up NDE will be performed tocharacterize flaws in the leaking penetrations. You provided plans for expansion of the scope of NDE to be performed if circumferential flaws are found in any portion of the leaking pressurizer penetrations or steam space piping connections.In response to item (1)(d), you explained why the inspection program identified in yourresponse to item (1)(c) is adequate for the purpose of maintaining the integrity of the Davis-Besse RCPB and for meeting all applicable regulatory requirements.By letter dated August 22, 2005, you provided a response to item (2)(a) in Bulletin 2004-01. This letter provided a statement to the NRC indicating that the inspections described in yourresponse to item (1)(c) were completed during the Davis-Besse Cycle 14 Mid-cycle outage anda description of the as-found condition of the locations inspected was provided. You also described any findings of relevant indications of through-wall leakage and follow-up NDE performed to characterize flaws in leaking penetrations or steam space piping connections. A summary of all relevant indications found by NDE, a summary of the disposition of any findings of boric acid, and a description of any corrective actions taken and/or repairs made as a result of the indications found was also provided in this letter.The NRC staff has completed its activities associated with the review of your responses toBulletin 2004-01 and finds your response to be acceptable. It should be noted that industry commitments or NRC staff regulatory actions may result in the need for you to modify yourplans for the inspection and repair of items discussed in Bulletin 2004-01. It is the NRC staff'sexpectation that you will revise your plan for the inspection and repair of items discussed inBulletin 2004-01 consistent with other industry commitments or NRC staff regulatory actions.

M. Bezilla- 4 -This closes the NRC staff's efforts with regard to the review of the Bulletin 2004-01 responsefor Davis-Besse. Please contact me at (301) 415-1486 if you have any questions on this issue.Sincerely,/RA/Stephen J. Campbell, Project Manager Plant Licensing Branch III-2 Division of Operating Reactor Licensing Office of Nuclear Reactor RegulationDocket No. 50-346 cc: See next page

ML062150557OFFICELPL3-2/PMLPL3-2/LALPL3-2/BCNAMESCampbell:mwDClarkeDCollins DATE 9/8/2006 9/8/2006 9/8/2006 Davis-Besse Nuclear Power Station, Unit 1 cc:Manager - Regulatory AffairsFirstEnergy Nuclear Operating Company Davis-Besse Nuclear Power Station5501 North State - Route 2Oak Harbor, OH 43449-9760Director, Ohio Department of CommerceDivision of Industrial ComplianceBureau of Operations & Maintenance 6606 Tussing Road P.O. Box 4009Reynoldsburg, OH 43068-9009Regional AdministratorU.S. Nuclear Regulatory Commission801 Warrenville RoadLisle, IL 60523-4351Resident InspectorU.S. Nuclear Regulatory Commission5503 North State Route 2 Oak Harbor, OH 43449-9760Barry Allen, Plant ManagerFirstEnergy Nuclear Operating Company Davis-Besse Nuclear Power Station 5501 North State - Route 2Oak Harbor, OH 43449-9760Dennis ClumRadiological Assistance Section SupervisorBureau of Radiation ProtectionOhio Department of Health

P.O. Box 118 Columbus, OH 43266-0118Carol O'Claire, Chief, Radiological BranchOhio Emergency Management Agency 2855 West Dublin Granville RoadColumbus, OH 43235-2206Zack A. ClaytonDERROhio Environmental Protection AgencyP.O. Box 1049 Columbus, OH 43266-0149State of OhioPublic Utilities Commission 180 East Broad StreetColumbus, OH 43266-0573Attorney General Office of Attorney General30 East Broad StreetColumbus, OH 43216President, Board of CountyCommissioners of Ottawa CountyPort Clinton, OH 43252 President, Board of CountyCommissioners of Lucas CountyOne Government Center, Suite 800 Toledo, OH 43604-6506The Honorable Dennis J. KucinichUnited States House of Representatives Washington, D.C. 20515The Honorable Dennis J. Kucinich United States House of Representatives 14400 Detroit Avenue Lakewood, OH 44107 Gary R. LeidichPresident and Chief Nuclear Officer FirstEnergy Nuclear Operating CompanyMail Stop A-GO-1976 South Main Street Akron, OH 44308Joseph J. HaganSenior Vice President of Operations and Chief Operating Officer FirstEnergy Nuclear Operating CompanyMail Stop A-GO-1476 South Main Street Akron, OH 44308David W. Jenkins, AttorneyFirstEnergy Corporation Mail Stop A-GO-18 76 South Main StreetAkron, OH 44308 Davis-Besse Nuclear Power Station, Unit 1 cc:Danny L. PaceSenior Vice President, Fleet Engineering FirstEnergy Nuclear Operating Company Mail Stop A-GO-1476 South Main StreetAkron, OH 44308Manager, Fleet LicensingFirstEnergy Nuclear Operating CompanyMail Stop A-GHE-107 395 Ghent Road Akron, OH 44333Manager, Site Regulatory ComplianceFirstEnergy Nuclear Operating Company Davis-Besse Nuclear Power StationMail Stop A-DB-30655501 North State Route 2 Oak Harbor, OH 43449-9760Jeannie M. RinckelVice President, Fleet Oversight FirstEnergy Nuclear Operating Company Mail Stop A-GO-1476 South Main StreetAkron, OH 44308