ML20056B850

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Informs of 761007 Event Involving TIP Ball Valve Which Failed to Automatically Close Properly.Tip Held Out of Svc W/Ball Valve Closed Pending Further Investigation
ML20056B850
Person / Time
Site: Monticello Xcel Energy icon.png
Issue date: 10/08/1976
From: Eliason L
NORTHERN STATES POWER CO.
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20056B849 List:
References
NUDOCS 9102130401
Download: ML20056B850 (1)


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i NSS NOMTHERN

$ RATES POWER COMPANY hbnticello Ibclear Generating Plant

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i October 8,1976 l

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Mr. J. G. Keppler, Director Region III Office of Inspection and Enforcement United States Ibclear Regulatory Coinnission 799 Roosevelt Road Glen Ellyn, Illinois 60137

Dear Mr. Koppler:

lOlEICELID JUCLIAR GF.NERATIIG PIMr Ibcket No. 50-263 License No. DPR-22 During power operation near 100% on October 7,1976, No. 3 TIP ball valve failed to automatically close properly during routine operation of the TIP System.

The vahre was cycled manually and it closed successfully.

No. 3 T1P is presently held out of service with the ball valve closed pending, further investigation.

Yours very truly,

, %y*0,f C.

t L. R. Eliason

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Plant Manager LRE/sdd Director, Office of hhnagement Infomation G cc:

Program Control 1

G. Charnoff Minnesota Pollution Control Agency Attn: J h' Ferman File Copy sent by telecopict to Keppler.*

9102130401 761020 CF ADDCK 05000263 CF

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