ML20081H611

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Final Deficiency Rept Re Masoneilan Main Steam Isolation Bypass Valves.Initially Reported on 821028.Valves Repaired. Insp Did Not Reveal Condition in Similar Valves.Condition Not Reportable Under 10CFR50.55(e)
ML20081H611
Person / Time
Site: Callaway Ameren icon.png
Issue date: 10/25/1983
From: Schnell D
UNION ELECTRIC CO.
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
10CFR-050.55E, 10CFR-50.55E, ULNRC-679, NUDOCS 8311070523
Download: ML20081H611 (1)


Text

I AM8 UNION ELECTRIC COM PANY ISCI GRATIOT STREET ST. lou ts, MISSOU RI MAILINS ADORESS:

DON ALD F. SCHNELL P. O. BOM 949 October 25, 1983

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skb Mr. James G. Keppler, Regional Administrator US Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, IL 60137 ULNRC-679

Dear Mr. Keppler:

On October 28, 1982 we informed NRC Region III of a potentially reportable deficiency regarding a group of Masoneilan main steam isolation bypass valves.

Subsequent evaluation has indicated that this deficiency, had it remained uncorrected, would not have adversely affected the safety of operations.

The valves in question, however, have been repaired and inspection of similar Masoneilan valves has revealed that they did not exhibit similar conditions.

This letter is being sent in response to a request by Mr. Konklin that we submit a written withdrawal of this potential 10CFR50.55(e).

Ver truly yoursg G>

Donald F.

Schnell JGJ/jds cc:

J.

E. Konklin, Region III Richard DeYoung, Director I&E NRC Resident Inspectors, Callaway Plant (2)

Missouri Public Service Commission l

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