CNRO-2004-00025, Relaxation Request 1 to NRC Order EA-03-009 for Reactor Pressure Vessel Head Penetration Nozzles
| ML041260141 | |
| Person / Time | |
|---|---|
| Site: |  |
| Issue date: | 04/21/2004 |
| From: | Burford F Entergy Operations |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| CNRO-2004-00025, EA-03-009 | |
| Download: ML041260141 (2) | |
Text
Entergy Operations, Inc.
I-. f EJILLterg cnt y r1340 Echelon Parkway Jackson, Mississippi 39213-8298 Tel 601-368-5758 F. G. Burford Acting Director Nuclear Safety & Licensing CNRO-2004-00025 April 21, 2004 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555
SUBJECT:
_ ANO-1 Relaxation Request #1 to NRC Order EA-03-009 for Reactor Pressure Vessel Head Penetration Nozzles Arkansas Nuclear One, Unit 1 Docket No. 50-313 License No. DPR-51
REFERENCE:
Entergy Operations, Inc. letter CNRO-2004-00008 to the NRC, Relaxation Request to NRC Order EA-03-009, dated February 8, 2004 In the referenced letter, Entergy Operations, Inc. (Entergy) requested relaxation from inspection requirements of NRC Order EA-03-009 for Arkansas Nuclear One, Unit 1 (ANO-1) via ANO-1 Relaxation Request #1. Specifically, the ANO-1 reactor pressure vessel (RPV) head penetration nozzles cannot be effectively examined as required by the Order.
Ohn;'Ao6il 2-1,'2004; the NRC staff requested that'Entergy'resp8ndvto a question pertaining to ANO-1-Relaxation Requetl#1. 'The question and Entergy's response are provided below.
NRC Ouestion6s Please confirm that the methodology used in your crack growth calculations is identical to the methodology used for the control erement drive mechanism (CEDM) penetration nozzles at Arkansas Nuclear One, Unit 2 (ANO-2), which was approved by the NRC. If it is not the same, identify and discuss all of the differences including the justification and the level of conservatism.; l ,c EntergjARdspbnse:
Th16methbdbf6gy'u.ed In'the tcrack growth calculations that supportANO-1 Relaxation ...
Rdqueslt 1is'idonfidal !t6:the'methodology used Inith,'craak growth cilculationsvforithe CEDM nozzles that supports the similar relaxation request for ANO-2.
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CNRO-2004-00025 Page 2 of 2 This letter contains no commitments.
Should you have any questions, please contact Guy Davant at (601) 368-5756.
Sincerely, FGB/GHD/ghd cc: Mr. W. A. Eaton (ECH)
Mr. J. S. Forbes (ANO)
A_
-- Dr. Bruce-S-Mallett.. ---
Regional Administrator U. S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011-8064 NRC Senior Resident Inspector Arkansas Nuclear One P.O. Box310 London, AR 72847 U. S. Nuclear Regulatory Commission Attn: Mr. T. W. Alexion MS 0-7 D1 Washington, DC 20555-0001