ML20084R982

Telecopy Ro:On 740908,transversing in-core Valve E Failed to Close.Cause Not Stated.Valve Housing Tapped & Valve Closed. Investigation Underway

ML20084R982
Person / Time
Site:	Dresden
Issue date:	09/09/1974
From:	Stephenson B COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20084R976	List: ML20084R973 ML20084R982
References
NUDOCS 8306160095
Download: ML20084R982 (1)

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VEE 202(1757)(1-037732C2 52 )PD 09/09/74 1754 ICS IPMVE!C MVN 03324 TDVE MORRIS IL 75 09-9 40lP CDT PMS MR JAMES G KEPPLER REGIONAL DIRECTOR DIRECTORI ATE OF REGUL ATORY OPER ATIONS REGION 3 WUX US ATOMIC ENERGY COMMISSION 799 ROOSEVELT RD GLEN ELLYN IL 60137 SUBJECT DPR-25, DRESDEN NUCLEAR POWER A STATION, UNIT 3 THIS WILL CONFIRM A CONVERSATION WITH MR MAURA 0F YOUR OFFICE AT 1430 HOURS THIS DATE CONCERNING FAILURE OF "E" TIP VALVE TO CLOSE AT 2040 SEPTEPEER STH 1974 AFTER OPERATING TIP MACHINE OPER ATORS WERE ABLE TO TAP VALVE HOUSING AND VALVE CLOSED

.s SHORTLY THEREAFTER SHEAR VALVE WAS AVAILABLE AS A BACKUP SHOULD AN ISOLATION THE REQUIRED INVESTIGATION IS IN PROCESS AT THIS

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