ML19350D915
| ML19350D915 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 12/18/1980 |
| From: | Koester G KANSAS GAS & ELECTRIC CO. |
| To: | Siedle W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, KMLNRC-049, KMLNRC-49, NUDOCS 8105260425 | |
| Download: ML19350D915 (1) | |
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D*cember 18, 1980 h_4 4s assa^ross p?
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Mr. W.C. Seidle, Chief Reactor Construction and
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U.S. Nuclear Regulatory Cczunission C.
Region IV
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611 Ryan Plaza Drive - Suite 1000 Arlington, Texas 76012 KMLNRC-049 Re:
a) NRC Docket No. 50-482 b) GKoester letter to WSeidle,KMLNRC-011 c) GKoester letter to WSeidle,K'tRIRC-033 Subj: Potential 50.55(e) Report Industrial Mechanics, Inc. - Nuts and Bolts
Dear Mr. Seidle:
As indicated in my letter of October 29,1980 (Reference c), analysis of data derived from anchor bolts and nuts, with out-of-tolerance thread sizes, has been completed by our A/E, Bechtel. The nonconforming nuts and bolts were furnished by Industrial Mechanics, Inc. under Specification 10466-C-134.
The report indicates that of the nuts and bolts checked, not a single anc.'ior (nut-bolt combination) was found for which the predicted failure mode is in the threads. This results in no predicted reduction in design capacity.
We have concluded that had the out-of-tolerance nuts and bolts ramMned undetected there would not have been a significant reduction in safety.
We, therefore, no longer consider this matter to be a potential 10CFR50.55(e) item.
The final Bechtel report is in our possession and may be reviewed by NRC inspectors during any future inspection.
Yours very truly, 8103260 M bhat K A 3
GI.K:bb g6Ii cc: TVandel (NRC Site Inspector)
,g 201 N. Market - Wictura Kansas - Mad Address: RO. Box 208 i Mctuta. Kansas 67201 - Teleonone: Area Coce (316) 2616451