ML20084U978

Telecopy Ro:On 720519,HPCI Turbine Would Not Reset from Control Room.Caused by Loose Wire in Turbine Reset Solenoid. Solenoids from Units 2 & 3 Will Be Replaced

ML20084U978
Person / Time
Site:	Dresden
Issue date:	05/22/1972
From:	Worden W COMMONWEALTH EDISON CO.
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20084U394	List: ML20084U392 ML20084U978
References
NUDOCS 8306290679
Download: ML20084U978 (1)

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705P EST MAY 22 72 DEA 601 [,. TELc =pp gED TO_ N -

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BOYCE GRIER, DIRECTOR DIVN OF C3MPLIANCE g TO BE A 0.I' . j REGION 111 U S ATOMIC ENERGY COMMISS.T.LN 799 ROOSEVELT RD GLENELLYN ILL 60137 ~

DPR-25 DRESDEN NUCLEAR POWER STATIOWUNIT 3. THIS WILL CONFIRM CONVERSATION AT 1300 HOURS THIS DATE WITR'H DANCE REGARDING FAILURE OF THE HPCI/QURBAN TO RESET, ON FRIDAY 5-19-72 THE HPCI TURBAN WOULD NOI RESET FROM'THE CONTROL ROOM WHEN CONDUCTING THE MONTHLY TURBAN SURVEILLAECE THE TtfRB'AN WAS RESENT LOCALLY AND THE SURVEILLANCE TEST WAS THEN CMPLETED PHE INDICATING LIGHT WHICH MONITORS THE CONTINUITY OF THE RSET CIRCUIT' UAS ENEGIZED AND INDICATED A NORMAL CONDITION.

, ON SATURDAY, 5-20-14 AN ELECTRICIAN FOUND A LOOSE WIRE IN THE 2OWf#

TURBAN RESET e,r m: mun SOLEN 0ID THE WIRE WAS RECONNECTED B Y 6PM SATUKDAY.

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WO!ILD PROBABLY PREVENTED HPCI FROM INITIATING UNDER ' ACCIDENT CONDITIONS. NEW SOLENOIDS 'HAVE BEEN ORFRED -

ANDWILL BE REPLACED ON BOTH UNITS-$&3 W P WARDEN OLANT SUPT DRESDEN STATION : _

e DPR-25 3 1300- HPCI 5-19-72 HPCI 5-20-72 6PM HPCI 2&3. (411)

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