ML080320304
| ML080320304 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 01/31/2008 |
| From: | Jones D H Southern Nuclear Operating Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| nl-08-0150 | |
| Download: ML080320304 (2) | |
Text
David H. Jones Southern Nuclear Vice President Operating Company, Inc. Engineering 40 Inverness Center Parkway Birmingham.
Alabama 35242 Tel Fax SOUTHERNA COMPANY January 31,2008 Energy to Serve }Our'WorM'" Docket No.: 50-321 NL-08-0150 U. S. Nuclear RegUlatory ATrN: Document Control Washington, D. C.
Edwin I. Hatch Nuclear Response to NRC Request Regarding Modification of Core Shroud Stabilizer Ladies and Gentlemen:
By letter dated August 14, 2007 pursuant to 10 CFR 50.55a(a)(3)(i),
Nuclear Operating Company (SNC) requested NRC approval of a modification to each of the four core shroud stabilizer assemblies.
During upcoming 2008 Refueling Outage (1 RF023), SNC proposes to replace the Unit 1 stabilizer assembly upper supports and tie rod top nuts with an design. By letter dated November 29, 2007 the NRC requested information regarding this submittal.
By letter dated December 18, 2007 provided responses to these questions.
Per telephone conversation on 29,2008 the NRC requested additional information.
The SNC responses provided in a letter dated January 30, 2008. Per telephone conversation January 31, 2008 the NRC requested the inclusion of the proposed inspection with the alternative request as described The core shroud stabilizers are not included under the ASME Code Section definition for repair or replacement.
As such, the design details of the modification and the proposed augmented inspection requirements are submitted to the NRC for review and approval as an alternative repair pursuant 10 CFR 50.55a(a)(3)(i).
The original submittal, dated August 14, 2007 the basis for concluding that the design modification provides an acceptable of quality and safety. The details of the proposed augmented requirements are described in Enclosure 2 of the SNC letter dated January 2008 and supplement the inspection requirements described in Enclosure Section 7.2 of the August 14, 2007 U. S. Nuclear Regulatory Commission NL-08-0150 Page 2 This letter contains no NRC commitments.
If you have any questions, please advise. DHJ/MNW/daj Southern Nuclear Operating Company Mr. J. T. Gasser, Executive Vice President Mr. D. R. Madison, Vice President
-Hatch RTYPE: CHA02.004 U. S. Nuclear Regulatory Commission Mr. V. M. McCree, Acting Regional Administrator Mr. R. E. Martin, NRR Project Manager -Hatch Mr. J. A. Hickey, Senior Resident Inspector
-Hatch