ML19316A786
| ML19316A786 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 05/16/1980 |
| From: | Clark R Office of Nuclear Reactor Regulation |
| To: | Burstein S WISCONSIN ELECTRIC POWER CO. |
| References | |
| NUDOCS 8005270521 | |
| Download: ML19316A786 (3) | |
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f* "%c,jo, UNITED STATES f_
NUCLEAR REGULATORY COMMISSION y $e g
E WASHINGTON, D C. 20555
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May 16,1980 Docket No. 50-266 Mr. Sol Burstein Executive Vice President Wisconsin Electric Power Company 231 West Michigan Street Milwaukee, Wisconsin 53201
Dear Mr. Burstein:
In your letter of March 28, 1980, in which you reported the results of a recent steam generator tube inspection conducted at Point Beach Nuclear Plant, Unit No.1, you offered to provide tube samples of removed tubes to our consultant at Brookhaven National Laboratory (BUL) if requested.
Through discussions with our consultants we have identified the tube samples listed in the enclosure to this letter as being the most desirable for conf.irmatory evaluations and request that they be sent to Dr. John R.
Weeks at BNL.
If the identified samples are not available, discussions should be held to identify appropriate substitutes which can be provided.
We would like to have these samples sent to BHL as soon as possible.
Sincerely, h!
obert A. : lark, Chief Operating Reactors Branch #3 Division of Licensing
Enclosure:
Tube List cc w/ enclosure:
See next p. age 8005'J7 0 D /
M
Enclosure REQUESTED POINT SEACH 1 TUBE SAMPLES FOR EXAMINATION AT BNL 1.
For tube 19-37. Westinghouse cut a longitudinal section about 1" long throJgh the center of the uppermost defect observed in this tube, which apparently corresponds to the 58% ECT indication above the tubesheet observed in the field. This resulted in two, half-circumferential specimens.
If possible, we would like to obtain one of these sections.
2.
A portion of one of the other tubes in the area close to and slightly above the top of tubesheet.
3.
A portion of one of the tubes from within the tube-tubesheet crevice where eddy current inspection identified a major defect. For example, a section of tube 26-53 from approximately four inches below the tubesheet surface to the surface would be satisfactory.
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