Letter Sequence Draft RAI |
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MONTHYEARML1102501472011-01-24024 January 2011
Submittal of Relief Request 14R-52 Concerning Nozzle-to-Vessel Weld and Inner Examinations (Use of Code Case N-702)
Project stage: Request
ML1102501322011-01-24024 January 2011
Proposed Relief Request with the Requirements of 10 CFR 50.55a Concerning Reactor Pressure Vessel Circumferential Shell Welds
Project stage: Request
ML1105904722011-02-28028 February 2011
Relief Request l4R-52 Concerning Nozzle-to-Vessel Weld and Inner Radll Examinations
Project stage: Approval
ML1105900632011-02-28028 February 2011
Supplemental Information Needed for Acceptance of Requested Licensing Action Relief Request l4R-51
Project stage: Acceptance Review
ML1107001462011-03-10010 March 2011
Additional Information Associated with the Acceptance Review of Relief Request Concerning Reactor Pressure Vessel Circumferential Shell Welds
Project stage: Request
ML1107306022011-03-18018 March 2011
Acceptance for Review of Relief Request I4R-51
Project stage: Acceptance Review
ML1111203972011-04-22022 April 2011
Draft Request for Additional Information Regarding Relief Request l4R-52 Concerning Nozzle-to-Vessel Weld and Inner Radii Examinations Peach Bottom Atomic Power Station, Units 2 and 3
Project stage: Draft RAI
ML1111204262011-04-22022 April 2011
Draft Request for Additional Information Regarding Relief Request l4R-51 Concerning Alternatives to Reactor Vessel Weld Examinations
Project stage: Draft RAI
ML1111203172011-04-22022 April 2011
Draft RAIs for PBAPS RR-I4R-51
Project stage: Draft RAI
ML1111203212011-04-22022 April 2011
Draft RAIs for Pbaps RR-I4R-52
Project stage: Draft RAI
ML1113901522011-05-23023 May 2011
Request for Additional Information Regarding Relief Request I4R-52 Concerning Alternatives to Reactor Vessel Weld Examinations
Project stage: RAI
ML1115302442011-06-0202 June 2011
Response to Request for Additional Information - Relief Request 14R-52 Concerning Nozzle-to-Vessel Weld and Inner Radii Examinations (Use of Code Case N-702)
Project stage: Response to RAI
ML1115202062011-06-0202 June 2011
Notice of Forthcoming Meeting with Exelon Nuclear Regarding Proposed Extended Power Uprate License Amendment Request for Peach Bottom Atomic Power Station, Units 2 and 3
Project stage: Meeting
ML1127702172012-01-24024 January 2012
Requests for Relief l4R-51 and l4R-52
Project stage: Other
2011-03-18
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Text
Draft DRAFT REQUEST FOR ADDITIONAL INFORMATION REGARDNG RELIEF REQUEST I4R-52 CONCERNING NOZZLE-TO-VESSEL WELD AND INNER RADII EXAMINATIONS PEACH BOTTOM ATOMIC POWER STATION, UNITS 2 AND 3 DOCKET NOS. 50-277 AND 50-278 By letter to the Nuclear Regulatory Commission (NRC) dated January 24, 2011 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML110250147), Exelon Generation Company, LLC, (Exelon) submitted Relief Request I4R-52 for Peach Bottom Atomic Power Station (PBAPS), Units 2 and 3. The relief request would provide relief from the American Society of Mechanical Engineers Boiler and Pressure Vessel Code,Section XI, Rules for Inservice Inspection of Nuclear Power Plant Components. The relief request proposes an alternative to the requirements contained in Table IWB-2500-1 concerning nozzle-to-vessel weld and nozzle inner radii examinations. The NRC staff has reviewed Exelons submittal and determined that additional information, as described below, is needed to complete the review.
to Relief Request I4R-52 lists inspection results for the nozzles for which an alternative is being requested. The NRC staff notes that all the inspection results listed are from the 3rd or 4th inspection interval.
RAI-01
Clarify whether all the inspection results for the life of each unit are included or only those conducted in accordance with Appendix VIII to the ASME Code,Section XI, Performance Demonstration for Ultrasonic Examination Systems.
RAI-02
Indicate which examinations listed in Enclosure 3 were conducted in accordance with Appendix VIII to the ASME Code,Section XI, Performance Demonstration for Ultrasonic Examination Systems.
