ML19350A210
| ML19350A210 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 03/02/1981 |
| From: | Bryan J UNION ELECTRIC CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| REF-PT21-81-371-000 10CFR-050.55E, 10CFR-50.55E, PT21-81-371, PT21-81-371-000, U-27, ULNRC-419, NUDOCS 8103130040 | |
| Download: ML19350A210 (2) | |
Text
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UNION ELECTRIC COMPANY 1908 GRA*ICT STREET ST. Louis. MISSOURI e
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Mr. James G. Keppler, Director US Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, IL 60137 ULNRC-419
Dear Mr. Keppler:
INTERIM 10CFR50. 55 (e) /10CFR21 Report No. U-27 CALLAWAY PLANT C'JTT On January 30, 1981, Mr. H. Wescott of Region III was given verbal notification of a significant deficiency regarding loose bushings in Bergen-Paterson sway struts.
Of the eleven (11) loose bushings found, there was a potential for five (5) of these bushings to become completely disengaged from the sway strut paddle end.
A similar problem involving Corner & Lada Co. has already been reported under 10CFR50.55(e) criteria because of the potential to overstress a piping system if the bushings were to beccme ecmpletely disengaged during a seismic event.
We are ad-vised thar recent inspections at the Wolf Creek site have identified similar difficulties with some of the Bergen-Paterson furnished sway struts at that site.
These inspecticn findings were also reported to the NRC as a potential significant deficiency dnder 10CFR50.55(e) criteria by Kansas Gas & Electric.
Further investigations are being undertaken in conjunction with Kansas Gas and Electric to determine the cause of this diffi-culty and to develop a meaningful plan of corrective action.
Ap-plicabiliry to sway struts furnished to Callaway Site by ITT-Grinnell is also being considered.
Inasmuch as these problems are common to both SNUPPS Sites, a generic report involving the Bergen-Paterson units will be' submitted by SNUPPS on behalf of both Kansas Gas &
Electric Company and Union Electric Company.
We anticipate a final report being issued to the NRC on or before June 1, 1981.
ferf)trulyyours,
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Iohn K. Bryan (
RWD/lli cc:
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Konklin,; Region III B. H.
Grier, Region I Victor Stello, Jr., Director I&EA '
W. A. Hansen, NRC Resident Inspection, Callaway Plant Missouri Public' Service Commission j.....--