ML17059B521
| ML17059B521 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 04/30/1997 |
| From: | Hood D NRC (Affiliation Not Assigned) |
| To: | Sylvia B NIAGARA MOHAWK POWER CORP. |
| Shared Package | |
| ML17059B522 | List: |
| References | |
| TAC-M98414, NUDOCS 9705020284 | |
| Download: ML17059B521 (6) | |
Text
Hr.
B. Ralph Sylvia Executive Vice Presid Generation A
1 30, 1997 Business Group and Chief Nuclear Officer Niagara Mohawk Power Corporation Nuclear Learning Center 450 Lake Road
- Oswego, NY 13126
SUBJECT:
FLAW EVALUATION OF RECIRCULATION LINE WELD 32-WD-050 FOR NINE MILE POINT NUCLEAR STATION UNIT NO.
1 (TAC NO. H98414)
Dear Hr. Syl vi a:
In a letter dated April 7,
From your evaluation, you concluded that it is acceptable to operate Nine Mile Point Unit 1
(NHPl) for the upcoming cycle with'out repair of the weld indication.
In a letter dated April 21,
- 1997, you informed us that you revised the NHPl Inservice Inspection Program Plan to classify weld 32-WD-050 as a Category "F" weld.
As a Category "F" weld, this weld will have to be examined during each refueling outage.
The classification of weld 32-WD-050 did not change the conclusions reached in your April 7, 1997, letter.
Based on a review of your submittal and on independent crack growth calculations, the staff has concluded that NHPl can be operated safely for the next cycle without repair to weld 32-WD-050, because the structural integrity of this weld will be maintained.
The acceptability of operation beyond the next fuel cycle without repair to this weld will depend upon the results of the re-inspection during the next refueling outage that you committed to in your letter dated April 21, 1997.
The staff's safety evaluation is enclosed.
If you have any questions, please call me at (301) 415-3049.
Sincerely, ORIGINAL SIGNED BY:
Darl S.
Hood, Senior Project Manager Project Directorate I-l Division of Reactor Projects I/II Office of Nuclear Reactor Regulation Docket No. 50-220
Enclosure:
Safety Evaluation cc w/encl:
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 April 30, 1997 Hr. B. Ralph Sylvia Executive Vice President Generation Business Group and Chief Nuclear Officer Niagara Mohawk Power Corporation Nuclear Learning Center 450 Lake Road
- Oswego, NY 13126
SUBJECT:
FLAW EVALUATION OF RECIRCULATION LINE WELD 32-WD-050 FOR NINE MILE POINT NUCLEAR STATION UNIT NO.
1 (TAC NO. H98414)
Dear Hr. Sylvia:
In a letter dated April 7, 1997, you provided the analytical evaluation of a rejectable weld indication in weld 32-WD-050.
From your evaluation, you concluded that it is acceptable to operate Nine Mile Point Unit 1 (NHPl) for the upcoming cycle without repair of the weld indication.
In a letter dated April 21, 1997, you informed us that you revised the NMP1 Inservice Inspection Program Plan to classify weld 32-WD-050 as a Category "F" weld.
As a Category "F" weld, this weld will have to be examined during each refueling outage.
The classification of weld 32-WD-050 did not change*the conclusions reached in your April 7, 1997, letter.
Based on a review of your submittal and on independent crack growth calculations, the staff has concluded that NHPl can be operated safely for the next cycle without repair to weld 32-WD-050, because the structural integrity of this weld will be maintained.
The acceptability of operation beyond the next fuel cycle without repair to this weld will depend upon the results of the.re-inspection during the next refueling outage that you committed to in your letter dated April 21, 1997.
The staff's safety evaluation is enclosed.
If you have any questions, please call me at (301) 415-3049.
Sincerely, Docket No. 50-220
Enclosure:
Safety Evaluation cc w/encl:
See next page Darl S.
ood, Senior Project Manager Project Directorate I-1 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation
B. Ralph Sylvia Niagara Hohawk Power Corporation Nine Mile Point Nuclear Station Unit No.
1 CC:
Hr. Richard B. Abbott Vice President and General. Manager Nuclear Niagara Mohawk Power Corporation Nine Mile Point Nuclear Station P.O.
Box 63
- Lycoming, NY 13093 Hr. Martin J.
McCormick, Jr.
Vice President Nuclear Safety Assessment and Support Niagara Mohawk Power Corporation Nine Mile Point Nuclear Station P.O.
Box 63
- Lycoming, NY 13093 Hs. Denise J. Wolniak Manager Licensing Niagara Mohawk Power Corporation Nine Mile Point Nuclear Station P.O.
Box 63
- Lycoming, NY 13093 Mr. Kim A. Dahlberg General Manager Projects Niagara Mohawk Power Corporation Nine Mile Point Nuclear Station P.O.
Box 63
- Lycoming, NY 13093 Hr. Norman L. Rademacher Plant Manager, Unit 1
Nine Mile. Point Nuclear Station P.O.
Box 63
- Lycoming, NY 13093 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Resident Inspector U.S. Nuclear Regulatory Commission P.O.
Box 126
- Lycoming, NY 13093 Charles Donaldson, Esquire Assistant Attorney General New York Department of Law 120 Broadway New York, NY 10271 Hr. Paul D. Eddy State of New York Department of Public Service Power Division, System Operations 3 Empire State Plaza
- Albany, NY 12223 Mr. F. William Valentino, President New York State
- Energy, Research, and Development Authority Corporate Plaza West 286 Washington Avenue Extension
- Albany, NY 12203-6399 Hark J. Wetterhahn, Esquire Winston
& Strawn 1400 L Street, NW Washington, DC 20005-3502, Gary D. Wilson, Esquire Niagara Mohawk Power Corporation 300 Erie Boulevard West
- Syracuse, NY 13202 Supervisor Town of Scriba Route 8, Box 382
- Oswego, NY 13126