ML17252A937

Letter Confirming a 12/14/1973 Conversation Concerning a Failure of the Diesel Generator Cooling Water Pump - Dresden Unit 3

ML17252A937
Person / Time
Site:	Dresden
Issue date:	12/14/1973
From:	Worden W Commonwealth Edison Co
To:	O'Leary J US Atomic Energy Commission (AEC)
References
Download: ML17252A937 (1)

Text

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50-249

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USAEC HQS

. 1973' _DEC 14 PM 2 '6, j

. *

• Pi:i~fatory WU WSH U.S. ATOMIC JNeRGY COMM. .

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~079 TOVE MO~RIS,ILL 126 fg-14 ll37A. CST PMS MR J f 0'1 fARY DIRECTOR DIRECTORITE. OF LICENSING U S ATOMIC ENERGY.COMMISSION wux WASHDC 20545 SUBJECT DPR-25 DR~SDEN NUCLEAR POWER STAT! ON UNIT. 3.

• THIS WILL CONFIRM A CONVERSATION WITH MR MAUR~* OF YOUR OFFICE AT 1030 HOURS THIS DATE CONCERNING A FAILURE OF THE UNIT 3 DIESEL

.~NERATOR COOLING WATER PUMP. ON DECEMBER 141 1973.AT 0005 HOURS

\I.HILE* CONDUCTING ROUTINE POST*MAINTENANCE'> SURVEILLANCE OF' THE UNIT

~ DIESE~ GENERATdR.JHE 480 VOLT ~REAKER FEEDIN~ TH~ COOLING WATER* -'

• PUMP TRIPPED CAUSING*~THE DIESEL GENER~TOR TO TRIP ON H~GH.

TEMPERATURE* ALL SYST£MS REQUIRED TO BE OPERABLE WHEN THE UNIT *3 DIESEL Is OUT OF SERv16i. WERE IMMEDIATELY TESTED AND VERIFIE.D Tb BE CPERABLE. AN INVESTIGATION INTO THE CAUSE' OF THE COOLING WATER PUMP FEED BREAKER TRIP IS UNDERWA"Y AT THIS TIME*

w p WORD-EN1 SUPERINTENDENT :

• DRESDEN NUCLEAR POWER Si~TION COMMONWEALTH EDISON COMPA~Y ROUTE 1 .,~

MORRIS ILLINOIS ..,

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