ML20084D537

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Telecopy Message of Ro:On 730405,MO-2-1301-1 Breaker Tripped,Causing Isolation Condenser Steam Line Isolation Valve Not to Function in Event of Line Break
ML20084D537
Person / Time
Site: Dresden Constellation icon.png
Issue date: 04/05/1973
From: Worden W
COMMONWEALTH EDISON CO.
To: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20084D531 List:
References
NUDOCS 8304120083
Download: ML20084D537 (1)


Text

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1973 AP -5 PH 3: 0 VEE!90(lEl9)(1-023299C095) PD 04/05/74.LifgidMS

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ICS IPMVEIA MVN 01200 TDVE MORRIS IL 04-05 2A0ffchk y

AES EU SECTIO 3 0F C'0!iLYAT8EEREG~10ii'3Y ;$,9 fr 3hd'-

FMS B0YCE GRIER DIRECTOR DIWFt D

to be.muud or niod f

US ATOMI?ENGERY COMMISSION At tva,ts te daliver (indicato DA cr BY)

WUX 799 ROOSEVELT RD GL ENELLYN -IL. 6 0131....___. _..

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l SUBJECT DPR-19 DRESDEN NUCLEAR POWER STATION UNIf IWO

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IHIS WILL CONFIRM THE CONVERSATION WITH MR MAURA 0F YOUR OFFICE f

o AT 1420 HOWEARD THIS DATE CONCERNING TRIP 0F MO-2-1301-1 DREAKER.

f 80 ISOLATION CONDENSOR STEAM LINE ISOLATION VALVE WAS IN ITS n8 r

og NORMALLY OPEN POSITION. IT WOULD HAVE PERMITIED NORMAL FUNCTION OF f @g THE ISOLATI0W CONDENSOR SYSTEM, buI WOULD NOT HAVE ISOLATED IN l

EVENT OF LINE BREAK. LAST KNOWN OPERATION W AS MONDAY AF TERNOON APRIL f

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1973 i

f W P WORDEN SUPT DRESDEN NUCLEAR POWER STATION RfE 1 MORRIS ILL

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f M 15-942-2920 Apg g g73 i

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