ML20084E863

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Telecopy Message of Ao:On 701014,gate Valve 851A Failed to Fully Close.Caused by Loose Stem Nut Locking.Lock Tightened & Stem Lubricated
ML20084E863
Person / Time
Site: Ginna, 05000000
Issue date: 10/14/1970
From: Platt C
ROCHESTER GAS & ELECTRIC CORP.
To: Kirkman R
US ATOMIC ENERGY COMMISSION (AEC)
Shared Package
ML20084E846 List:
References
NUDOCS 8304150594
Download: ML20084E863 (2)


Text

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  • ROUTE SLIP Sa me about this.

For concur For action.

A > Form AEC-93 (Rev. May 14.1947) AECM. 40 Note and return.

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Re:

ROCHESTER GAS & ELECTRIC CORPORATION J. P. O'Reilly j

CO:HQ DArE DOCKET NO. 50-244 Attached are the original and three copies of the I

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INITIALS Rr_ MARKS telegraphic report from RG&E which are being forwarded l

in accordance with PI 1000/3. The incident was also oAn discussed in Inquiry Memorandum No. 244/70-J.

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R W KIRKMAN, DIRECTOR REGION ONE DIVN OF COMPLI ANCE USAEC 970 BROAD ST NEWARK NJER THIS IS TO CONFIRM MY CONVERSATION AT 1600 THIS DATE WITH D0YLE HUf411 CUTT IN REGARDS TO A MALFUNCTION OF AN ENGINEERED SAFEGUARD VALVE AT GINNA STATION. THE PLANT WAS BEING BROUGHT UP TO A HOT SHUTDOWN CONDITION AT 0600 THE OPERATOR TRIED TO CLOSE GATE VALVE.#851 A, THE VALVE CLOSED PARTIALLY AND THEN STOPPED.

INVESTIGATION FOUND THE STEM NUT LUCKING NUT LOOSE ON THE LIMITORQUEf OPERATOR. THE LOCK NUT WAS TIGHTENED THE STEM WAS LUBRICATED AND THE VALVE WAS THEN OPERATED SUCCESSFULLY SEVERAL TIMES CHARLES E PLATT SUPR ROCH GAS AND ELC 1600 0600 #851 A LIMITORQUE 4

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