ML040480337

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Ltr, Relief Request - Use of Alternate Code Case for New Construction of Replacement Reactor Vessel Head Adapters
ML040480337
Person / Time
Site: Farley  Southern Nuclear icon.png
Issue date: 02/17/2004
From: Sean Peters
NRC/NRR/DLPM/LPD2
To: Stinson L
Southern Nuclear Operating Co
Peters S, NRR/DLPM, 415-1842
References
TAC MC1598, TAC MC1599
Download: ML040480337 (3)


Text

February 17, 2004 Mr. L. M. Stinson Vice President - Farley Project Southern Nuclear Operating Company, Inc.

Post Office Box 1295 Birmingham, Alabama 35201-1295

SUBJECT:

JOSEPH M. FARLEY NUCLEAR PLANT, UNITS 1 AND 2 REQUEST FOR ADDITIONAL INFORMATION RE: RELIEF REQUEST RR USE OF ALTERNATE CODE CASE FOR NEW CONSTRUCTION OF REPLACEMENT REACTOR VESSEL HEAD ADAPTERS (TAC NOS. MC1598 AND MC1599)

Dear Mr. Stinson:

By letter dated December 19, 2003, Southern Nuclear Operating Company requested relief to use the design stress intensity values of Code Case N-698 for the new construction of replacement reactor vessel head adapters at Farley Nuclear Plant, Units 1 and 2. The Nuclear Regulatory Commission technical staff has reviewed the application and has determined that additional information is required, as identified in the Enclosure.

We discussed these issues with your staff on February 5, 2004. Your staff indicated that you would attempt to provide your response by March 12, 2004.

Please contact me at (301) 415-1842, if you have any other questions on these issues.

Sincerely,

/RA/

Sean E. Peters, Project Manager, Section 1 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-348 and 50-364

Enclosure:

As stated cc w/encl: See next page

ML040480337 OFFICE PDII-1/PM PDII-1/LA PDII-1/SC NAME SPeters CHawes JNakoski DATE 2/13/04 2/13/04 2/13/04

Enclosure REQUEST FOR ADDITIONAL INFORMATION SOUTHERN NUCLEAR OPERATING COMPANY, INC.

JOSEPH M. FARLEY NUCLEAR PLANT UNITS, UNITS 1 AND 2 DOCKET NOS. 50-348 AND 50-364 The Nuclear Regulatory Commission (NRC) staff has reviewed the licensees submittal dated December 19, 2003, regarding use the design stress intensity values of Code Case N-698 for the new construction of replacement reactor vessel head adapters at Farley Nuclear Plant, Units 1 and 2. The NRC staff has identified the following information that is needed to enable the continuation of its review.

The relief request states that, "Based on evaluation of hot-worked UNS N06690 SB-167, Code Case N-698 adjusts the yield strength values for hot-worked UNS N06690 to the evaluated value of 35 ksi minimum and provides associated design stress intensity values that coincide with those of Section II, Part D, Subpart 1 of the 1999 addenda." The request also states that, "The design stress intensities and yield strength of Code Case N-474-2 were incorporated into the 1999 agenda." However, your request does not state the design stress intensities values for hot-worked UNS N06690 tubing that you propose to use in the fabrication of the replacement reactor vessel head. Provide a copy of the pending Code Case N-698 and state the design stress intensity values for the proposed hot-worked UNS N06690 tubing material.

These values are needed for the NRC staff to determine whether the proposed stress intensity values are appropriate for the material identified in the relief request.

Joseph M. Farley Nuclear Plant cc:

Mr. Don E. Grissette General Manager -

Southern Nuclear Operating Company Post Office Box 470 Ashford, Alabama 36312 Mr. B. D. McKinney, Licensing Manager Southern Nuclear Operating Company Post Office Box 1295 Birmingham, Alabama 35201-1295 Mr. M. Stanford Blanton Balch and Bingham Law Firm Post Office Box 306 1710 Sixth Avenue North Birmingham, Alabama 35201 Mr. J. B. Beasley, Jr.

Executive Vice President Southern Nuclear Operating Company Post Office Box 1295 Birmingham, Alabama 35201 State Health Officer Alabama Department of Public Health 434 Monroe Street Montgomery, Alabama 36130-1701 Chairman Houston County Commission Post Office Box 6406 Dothan, Alabama 36302 Resident Inspector U.S. Nuclear Regulatory Commission 7388 N. State Highway 95 Columbia, Alabama 36319 William D. Oldfield SAER Supervisor Southern Nuclear Operating Company P. O. Box 470 Ashford, Alabama 36312