ML20027A574
| ML20027A574 | |
| Person / Time | |
|---|---|
| Site: | Indian Point  |
| Issue date: | 12/20/1978 |
| From: | Bayne J POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK |
| To: | Mcdonald W NRC OFFICE OF MANAGEMENT AND PROGRAM ANALYSIS (MPA) |
| References | |
| FP-SSZ-3651, NUDOCS 7812290170 | |
| Download: ML20027A574 (2) | |
Text
,
- ~ m POWER AUTHORITY OF THE STATE OF NEW YORK INDIAN POINT NO. 3 NUCLEAR POWER PLANT P. O. MoX 215 SUCHANAN.N.Y.1o511 TELEPMo 9-820o December 20, 1978 IP-SSZ-3651 1
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Mr. William G. Mcdonald, Director Cffice of Management Information & Program Control c/o Distribution Services Branch, DDC, ADM U.S. Nuclear Regulatory Commission
Subject:
Inspection and Tube Plugging of Indian Point 3 Steam Generator
- 33
Dear Mr. Mcdonald:
/
This report is submitted in accordance with the requirements of Technical Specification 4.9.C relating to Steam Generator Tube Plugging.
The Indian Point Unit 3 plant was placed in the cold shutdown condition on December 7, 1978 as a result of a tube leak in Steam Generator 33, a Westinghouse Series 44 Steam Generator. The leak was determined to be a.24 gpm leak.
Subsequent inspection located the leak to be in Row 44, Column 56 at the second support plate in the hot leg side.
An attempt was made to eddy current this leaking tube, however, it would not pass a.540 inch probe which was the minimum size available.
Nominal tube diameter is.770 inches.
Twenty eight tubes surrounding the leaking tube were inspected by the eddy current technique. No additional in. perfections were identified.
Minor denting was indicated, however, all tubes passed a.700 inch probe.
The leaking tube was explosively plugged and a secondary side hydrostatic test was performed to verify the integrity of the plugs.
Very truly yours, 3w -- -
N
_ /J. P. Bayne Resident Manager SS::/rmb
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' william G. Mcdonald December 20, 1978 cG:
D' rector, Of fice of Inspection and Enforcement c/o Distribution Services Branch, CDC, ADM U.S. Nuclear Regulatory Conmission Washington, D.C.
20555 Boyce H. Grier, Director office of Inspection and Enforcement Region 1, U.S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406 Mr. George T. Berry General Manager and Chief Engineer Power Authority of the State of New York 10 Columbus Circle New York, New York 10019