ML20212J897
| ML20212J897 | |
| Person / Time | |
|---|---|
| Issue date: | 09/29/1999 |
| From: | Strosnider J NRC (Affiliation Not Assigned) |
| To: | Terry C NIAGARA MOHAWK POWER CORP. |
| Shared Package | |
| ML20212J900 | List: |
| References | |
| TAC-MA1138, NUDOCS 9910060030 | |
| Download: ML20212J897 (4) | |
Text
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UNITED STATES j
NUCLEAR REGULATORY COMMISSION 2
WASHINGTON, D.C. 30886-0001
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' September 29,1999 Carl Terry, BWRVIP Chairman Niagara Mohawk Power Company Post Office Box 63 Lycoming, NY 13093
SUBJECT:
FINAL SAFETY EVALUATION OF "BWR VESSEL AND INTERNALS PROJECT, VESSEL ID ATTACHMENT WELD INSPECTION AND FLAW EVALUATION GUIDELINES (BWRVIP-48)," EPRI REPORT TR-108724 (TAC NO. MA1138)
Dear Mr. Terry:
The NRC staff has completed its review of the proposed revisions to the Electric Power Research Institute (EPRI) proprietary report TR-108724 "BWR Vessel and Internals Project, Vessel ID Attachment Weld Inspection and Flaw Evaluation Guidelines (BWRVIP-48)." This
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report was submitted to the U.S. Nuclear Regulatory Commission for staff review by letter dated March 6,1998, and supplemented by letter deted March 3,1999. It provides generic guidelines intended to present appropriate inspection recommendations to assure safety function integrity j
of the subject safety-related reactor pressure vessel (RPV) internal components it also provides recommendations for additionalinspections ci non-safety related attachment welds to assess the possibility that cracks which initiate at the attachments might propagate into the vessel wall, nondestructive evaluation (NDE) metnode, inspection locations and inspection i
frequencies, and acceptable methods for use in evaluating the structural integrity significance of the flaws that are detected during the examinations.
j The NRC staff completed its initial review of the BWRVIP-48 report and transmitted a Safety Evaluation (SE) with several open items to you by letter dated March 21,1999. By letter dated April 30,1999, the BWRVIP responded to the open items in the staff's initial SE.
The NRC staff has reviewed the proposed revisions to the BWRVIP-48 report and finds, in the enclosed Safety Evaluation (SE), that the revised guidance of the BWRVIP-48 report is acceptable for inspection of the subject safety-related RPV internal components. This finding is based on information submitted by the above cited letters. The staff has concluded that licensee implementation of the guidelines in BWRVIP-48 will provide an acceptable level of quality for examination of the safety-related components addressed in the BWRVIP-48 document.
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Carl Terry,
Please contact C, E. (Gene) Carpenter, Jr., of my staff at (301) 415-2169, if you have any further questions regarding this subject.
Sincerely, W
Jack R. Strosnider, Director Division of Engineering t
Office of Nuclear Reactor Regulation
Enclosure:
As stated cc: See next page 1
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p cc:
i Karl W. Singer, Executive Chair Steve Lewis, Technical Chairman BWRVIP Assessment Task BWRVIP Assessment Task Tennessee Valley Authority Entergy
. PO Box 2000 P. O. Box 756 Decaltur, AL 35602-2000 Waterloo Road Port Gibson, MS 39150 Bill Eaton, Executive Chair inspection Committee -
Carl Larsen, Technical Chairman Entergy Operations, Inc.
BWRVIP inspection Task PO Box 756, Waterloo Rd P.O. Box 157 Port Gibson, MS 39150-0756 Vernon, VT 05354 H. Lewis Sumner, ExecuSe Chairman John Wilson, Technical Chairman
' BWRVIP Mitigation Task BWRVIP Mitigation Task Southern Nuclear Operating Co.
Clinton Power Station, WC T-31C WS BIN B051, PO Box 1295 P.O. Box 678 40 inverness Center Parkway Clinton,IL-61727 Birmingham, AL 35201 Vaughn Wagoner, Technical Chairman Harry P. Salmon, Executive Chairman BWRVIP Integration Task BWRVIP Integration Task Carolina Power & Light Company New York Power Authority One Hannnver Square 901
-123 Main St., WS 11 D P.O. Box 1551 White Plains, NY 10601-3104 Raleigh, NC 27612 George T. Jones, Executive Chair Bruce McLeod, Technical Chairman 4
BWRVIP Repair Task BWRVIP Repair Task Pennsylvania Power & Light, Inc.
Southem Nuclear Operating Co.
WS GEN A 61 Post Office Box 1295 2 N 9* Street 40 inverness Center Parkway Allentown, PA 18101-1139 Birmingham, AL 35201
Tom Mulford, EPRI BWRVIP Assessment Manager Integration Manager.
EPRI NDE Center Raj Pathania, EPRI BWRVIP P. O. Box 217097 Mitigation Manager
)
.1300 W. T. Harris Blvd.
Ken Wolfe, EPRI BWRVIP Charlotte, NC 28221 Repair Manager Electric Power Research Institute l
Greg Selby, EPRI BWRVIP P. O. Box 10412 Inspection Manager 3412 Hillview Ave.
EPRI NDE Center Palo Alto, CA 94303 P. O. Box 217097 1300 W. T. Harris Blvd.
James P. Pelletier, BWRVIP Liaison
- Charlotte, NC 28221 to EPRI Nuclear Power Council Nebraska Public Power District Joe Hagan, BWRVIP Vice Chairman
_1200 Prospect Avenue PEPCO Energy Co.
PO Box 98 MC 62C-3 Brownville, NE 68321-0098 965 Chesterbrook Blvd l
Wayne, PA 19807-5691
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.s Carl Terry Please contact C. E. (Gene) Carpenter, Jr., of my staff at (301) 415-2169, if you have any further questions regarding this subject.
Sincerely, ORIGNALSIGNED BY t JackRS?xn!#
Jack R. Strosnider, Director Division of Engineering Office of Nuclear Reactor Regulation
Enclosure:
As stated cc: See next page l
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