ML19291C138

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Discusses Steam Generator Problems at Facility.Eddy Current Insps of Generator Tubes Did Not Find 80% Defect at Tube Sheet Top.Problem May Be Generic to All PWR Steam Generators.Requests Action Plan Development by 800114
ML19291C138
Person / Time
Site: Point Beach NextEra Energy icon.png
Issue date: 01/04/1980
From: Shao L
Office of Nuclear Reactor Regulation
To: Noonan V
Office of Nuclear Reactor Regulation
References
NUDOCS 8001230012
Download: ML19291C138 (1)


Text

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UNITED STATES

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NUCLEAR REGULATORY COMMISSION

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JAMRY 4 1980 MEMORANDUM FOR:

V. S. Noonan, Chief Engineering Branch FROM:

L. C. Shao, Acting Assistant Director for Engineering Programs

SUBJECT:

RECENT STEAM GENERATOR PROBLEMS AT P0 INT BEACH Recent experiences at Point Beach indicated to us that repeated eddy currert inspections of steam generator tubes (normal single frequency) could not find 80 percent defect at the top of the tube sheet.

I believe this problem may be generic to all PWR steam generators.

I request you develop an action plan by January 14, 1980, on the follow-ing items:

1.

Investigate if the problem is generic.

If it is, recommend necessary steps to correct it.

2.

Develop a plan to upgrade industry and NRC inspection techniques in the tube sheet and similar areas.

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L. M. Shao, Acting Assistant Director for Engineering Programs Division of Operating Reactors cc:

H. R. Denton, NRR R. J. Budnitz, RES E. G. Case, NRR D. G. Eisenhut, NRR T. E. Murley, RES C. Z. Serpan, RES S. Hanauer, NRR J. P. Knight, NRR 1791 090 8001230 6 '