ML083310005
| ML083310005 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 11/26/2008 |
| From: | Beltz T Plant Licensing Branch III |
| To: | Scarpello M American Electric Power Co |
| beltz T, NRR/DORL/LPL3-1, 301-415-3049 | |
| References | |
| TAC MD9997 | |
| Download: ML083310005 (3) | |
Text
From:
Terry Beltz Sent:
Wednesday, November 26, 2008 6:43 AM To:
mkscarpello@aep.com Cc:
'jazwolinski@aep.com'; 'pgschoepf@aep.com'
Subject:
Acceptance Review Results re: Relief Request for Use of Weld Inlays as an Alternative Repair Technique for Reactor Vessel Safe End-to-Primary Nozzle Alloy 82/182 Welds
SUBJECT:
DONALD C. COOK NUCLEAR PLANT, UNIT 1 - ACCEPTANCE REVIEW REGARDING RELIEF REQUEST FOR USE OF WELD INLAYS AS AN ALTERNATIVE REPAIR TECHNIQUE FOR REACTOR VESSEL SAFE END-TO-PRIMARY NOZZLE ALLOY 82/182 WELDS (TAC NO. MD9997)
Dear Mr. Scarpello:
By letter dated October 7, 2008 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML083010238), Indiana Michigan Power Company submitted a relief request for the Donald C. Cook Nuclear Plant, Unit 1. The proposed relief request provides for the use of weld inlays as an alternative repair technique for Reactor Vessel Safe End-to-Primary Nozzle Alloy 82/182 welds. The purpose of the weld inlay is to provide a primary water stress corrosion cracking (PWSCC) and corrosion resistant weld material over the inner surface of dissimilar metal welds so that the PWSCC susceptible Alloy 82/182 material is not exposed to the reactor coolant system water environment.
Pursuant to Sections 50.55a(a)(3)(i) and 50.55a(a)(3)(ii) of Title 10 of the Code of Federal Regulations, the applicant shall demonstrate that the proposed alternatives would provide an acceptable level of quality and safety, or that compliance with the specified requirements of Section 50.55a would result in hardship or unusual difficulty without a compensating increase in the level of quality or safety.
The purpose of this letter is to provide the final results of the U.S. Nuclear Regulatory Commission (NRC) staffs acceptance review of this request. The acceptance review was performed to determine if there is sufficient technical information in scope and depth to allow the NRC staff to complete its detailed technical review and make an independent assessment regarding the acceptability of the proposed change. The acceptance review is also intended to identify whether the application has any readily apparent information insufficiencies in its characterization of the regulatory requirements or the licensing basis of the plant.
The NRC staff has reviewed your application and concluded that it does provide technical information in sufficient detail to enable the staff to proceed with its detailed technical review and make an independent assessment regarding the acceptability of the proposed amendment in terms of regulatory requirements and the protection of public health and safety and the
environment. If additional information is needed for the staff to complete its technical review, you will be advised by separate correspondence. Should you have any questions regarding this review, please contact me at (301) 415-3049.
Sincerely, Terry A. Beltz, Senior Project Manager Plant Licensing Branch III-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation cc: John A. Zwolinski Paul G. Schoepf E-mail Properties Mail Envelope Properties (BB882299B277DB4C9C9A613B507A6F6003285F5E44)
Subject:
Acceptance Review Results re: Relief Request for Use of Weld Inlays as an Alternative Repair Technique for Reactor Vessel Safe End-to-Primary Nozzle Alloy 82/182 Welds Sent Date: 11/21/2008 12:35:38 PM Received Date: 11/26/2008 6:42:00 AM From: Terry Beltz Created By: Terry.Beltz@nrc.gov Recipients:
mkscarpello@aep.com (mkscarpello@aep.com)
Tracking Status: None jazwolinski@aep.com ('jazwolinski@aep.com')
Tracking Status: None pgschoepf@aep.com ('pgschoepf@aep.com')
Tracking Status: None Post Office:
HQCLSTR01.nrc.gov Files Size Date & Time MESSAGE 10933 11/21/2008 Options Expiration Date:
Priority: olImportanceNormal ReplyRequested: False Return Notification: False
Sensitivity: olNormal Recipients received: