ML19329A698
| ML19329A698 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 07/21/1976 |
| From: | Parker W DUKE POWER CO. |
| To: | Rusche B Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8001090680 | |
| Download: ML19329A698 (3) | |
Text
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Duke Power Company 7/21/76 l
Mr. Benard C. Rusche Charlotte, North Carolina DATE RECEIVE D g
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Mr. William O. Parker, Jr.
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20555 Atteation: Mr. A. D hwencer, Chief Operating Reactors Branch 1 s,
Re: Oconee Unit 2 Docket No. 50-270
Dear Mr. Rusche:
In response to your letter of September 24, 1975 requesting additional evidence confirming that fuel assembly motion is_not occurring due to the high reactor coolant system flow rate existing at Oconee Unit 2, the following information is submitted.
.At the end of Oconee Unit 2, Cycle 1, an examination was conducted to determine if fuel lif t was evident due to fuel assembly position prior to removal. -No abnormalities or indications of fuel lift were observed.
Additionally, two selected Oconee Unit-2, Cycle 1 assemblies were examined for possible fuel rod fretting at spacer locations and for wear on the fuel assembly lower end-fittings. The examination consisted of a television and videotape scan of all four sides of both assemblies, plus periscope observations of two faces of one of the assemblies and all four sides of the lower end fitting area on both assemblies.
Special attention was given to grids, skirts and end fittings and several photographs were taken through the periscope.
The examination revealed no abnormal conditions.
All indications of wear on the grids, skirts and end fittings were normal and typical of other assemblies examined previously from Oconee Units 1 and 2.
- Also, no unusual " crud" pattern was evident on the grids or fuel rods which could be indicative of disrupted coolant, flow.73,
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lift nor any It is concluded from these examinations that neither fuel d during other other types of abnormal fuel assembly motion occurre
- Oconee Unit 2, Cycle 1 operation.
Very truly yours,
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a William O. Parker, Jr.
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