ML19296C818
| ML19296C818 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 02/26/1980 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | Rubenstein L Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19296C819 | List: |
| References | |
| NUDOCS 8002280566 | |
| Download: ML19296C818 (1) | |
Text
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i 402 Chastnut Street T ver II February 26, 1920 Director of Nuclear Raactor Eegulation Attention:
Mr. L. S. Rubenstein, Acting Chief Light '.latar Eeacters 2 ranch "o.
Divisica of Project :Snagement U.S. Nuclear Regulatory Commission Washington, :C 20335
Dear :
fr. Rubenstein:
In the :!atter of the Application of )
Docket "o. 50-327 Tennessee Valley Authority
)
TVA performed an ultrasonic inspection of eight nozzles at the ;'atts Bar Nuclear Plant and one nozzle at the Sequoyah Nuclear Plant (SNP) as a result of nozzle cracking in a French reactor vessel.
Subsequent to the inspection, TVA met with the NRC staff on February 22, 1980. The testing cethods and the nature of the indications found in the Sequoyah and Watts Sar nozzles were satisfactorily explained to the NRC staff at that meeting.
However, TVA agreed to inspect the remaining seven nozzles of the SNP unit 1 pressure vessel.
Since that time TVA has completed ultrasonic inspection of all eight nozzles on the SNP unit 1 pressure vessel. This inspection was witnessed by NRC Region II inspectors W. T. Cottle and P. K. VanDoorn. The results of this inspection and the subsequent analysis conclusively demonstrate the acceptability of all indications in accordance with ASME Section XI acceptance criteria.
Enclosed is a copy of the test report.
Very truly yours, TEN"ESSEE VALLEY AUTHORITY
) N L. M. Mills, Manager Nuclear Regulation and Safety Enclosure k,,
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40G Chestnut Street Tower II Feb ruary 26, 1930 Director of Nuclear Reactor Regulation Attention:
Mr. L. S. Rubenstein, Acting Chief Light Water Reactors 3 ranch No. 4 Division of ? oj2ct Manasecent U.S. Nuclear Regulatory Oc==1asica Washingt:n, CC 20353 Lear Mr. Rubenstein:
In the Mattar of the applicati:n of )
Docka
'ic.30-327 Tennessee Valley Authority
)
TVA perforned an ultrasonic inspection of eight nozzles at the Watts 3ar Nuclear Plant and one nozzle at the Sequoyah Nuclear Plant (SNP) as a result of nozzle cracking in a French reactor vessel.
Subsequent to the inspection, TVA =et with the NRC staf f on February 22, 1980. The testing methods and the nature of the indications found in the Sequoyah and Watts Bar nozzles were satisfactorily explained to the NRC staff at that meeting.
However, TVA agreed to inspect the remaining seven nozzles of the SNP unit 1 pressure vessel.
Since that tine TVA has completed ultrasonic inspection of all eight nozzles on the SNP unit 1 pressure vessel. This inspection was witnessed by NRC Region II inspectors W. T. Cottle and P. K. VanDoorn. The results of this inspection and the subsequent analysis conclusively demonstrate the acceptability of all indications in accordance with ASME Section XI acceptance criteria.
Enclosed is a copy of the test report.
Very truly yours, TENNESSEE VALLEY AUTHORITY L. M. Mills, Manager Nuclear Regulation and Safety LMM:MJB:PHW Enclosure cc (Enclosure):
ARMS, 640 CST 2-C J. R. Calhoun, 716 EB-C W. T. Cottle, Sequoyah-NRC A. W. Crevasse, 401 UBB-C H. N. Culver, 249A HBB-K G. F. Dilworth, W10Cl26 C-K H. S. Sanger, EllB33 C-K F. A. Szczepanski, 417 UBB-C LP>l Y
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