ML20084C942

Ro:On 731123,HPCI Sys Declared Inoperable.Caused by Moisture Accumulation in Junction Box Due to Steam Leak on Turbine Stop Valves

ML20084C942
Person / Time
Site:	Dresden
Issue date:	11/23/1973
From:	Worden W COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
NUDOCS 8304080380
Download: ML20084C942 (3)

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VED 127( 1605 )( 1-0177510327) PD 11/23/13 1603 ICS IPMVEIC MVN 03147 TDVEMORRIS ILL 121 11-23 1252P CST PMS JPMES G KEPPLER REGIONAL DIR DIRECTORATE REGULATORY OPERATIONS REGION 3 WUX US ATOMIC ENERGY COMM 799 ROOSEVELT RD GLENELLYN ILL 60137 SUBJECT DPR19 DRESDEN NUCLEAR POWER STATION UNIT 2.

THIS WILL CONFIRM A CONVERSATION WITH MR MAURA 0F YOUR OFFICE

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AT 1145 HOURS THIS DATE CONCERNING HPCI INOPERABLE. APPR0xIMATELY

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2000 NOV 22, 1973 OPERATIONS TRACED 250 VDC AND 125 VDC ROUNDS TO HPCI AUXILLARY 0IL PUMP WHICH PROVIDES LUBRICATION AND CONTROL OIL FOR HIGH PRESSURE COOLANT INJECTION TURBINE. DECLARED SYSTEM c

INOPERABLE, PROFORMED REQUIRED SURVELLIENCE AND CALLED ELECTION TO CLEA GROUND. ELECTRICIAN FOUND MOISTURE HAD t,,

ACCeMeLAree1NJeC11eNeexANemeCLeAeeeeReeNee

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WATER OUT. PLACED HPCI OUT OF SERVICE ABOUT 0830

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g g 3 PM 4 37 50-237 LI3AEC HQS GTWN U.S. ATOMIC ENERGY COM WU WSH TLXA0 96 WAF 10 4( l 545)( 1 -0166 90C327 )PD II/23/73 1543 ICS IPMVEIC MVN 03137 TDVE MORRIS IL 121 11-23 1251P CST PMS J F OLEARY DIR DIRECTORATE OF LICENSEING US ATOMIC ENERGY COMM AJS WASHDC SJdJECT DPR19 DRESDEN NUCLEAR POdER STATION UNIT 2 THIS WILL CONFIRM A CONVERSATION WITH MR MAURA 0F YOUR OFFICE AT 1145 HOURS THIS DATE CONCERNING HPCI INOPERABLE. APPROXIMATELY 2000 NOV 22, 1973 OPERATION.3 TRACED 250 VDC AND 12 5 V DC ROUNDS TO HPCI AUX I LLARY OIL PUMP WHICH PROVIDES LUdRICATION AND CONTROL OIL FOR HIGH PRESSURE COOLANT INJECTION TURdINE. DECLARED SYSTEM INOPERABLE PROFORMED REGUIRED SURVEILIENCE AND CALLED E.LECTRIC I AN TO CLEAR GROUND. ELECTRI'CAN FOUND MOISTURE HAD ACCUMULATED IN JUNCTION BOX AND HE CLEARED GROUND BY DRAINING WATER OUT/PLACED WCI OUT OF SERVICE adOUT 0830 NOVEMBER 23 FOR A MECHANICAL

. t%INTENANCE TO STOP STEAM LEAK ON TURBINE STOP VALVES WHICH WAS SOURCE OF MOISTURE.

W P WORDEN SUPERINTENDENT DRESDEN NUCLEAR POWER STATION COMMON W E A LTH EDISON CO RRI MORRIS ILLINOIS A

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