ML17252A529

Letter Confirming a 06/24/1974 Conversation Concerning a Failure of the Air Supply to the Feed Water Regulating Valve on 06/23/1974 - Dresden Unit 3

ML17252A529
Person / Time
Site:	Dresden
Issue date:	06/24/1974
From:	Stephenson B Commonwealth Edison Co
To:	O'Leary J US Atomic Energy Commission (AEC)
References
Download: ML17252A529 (1)

Text

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USAEC *HQS GTWN 50-249 WU* WSH .

TLXA206. WA~224<1654><1-033993Cl75002>PD 06/24174 165~

ICS IPMVEIB MVN

.. 02077 02077 TOVE MORRIS IL 93.' 06-24 233P CDT' PMS .J F' .O'LEARY DI RECTOR DIRECTORIATE OF LICENSING

~X US ATOMIC ENERGY COMMISSION WASHINGTON D C 20545 I:

SUBJECT *oPR-25 DRESDEN NUCLEAR POWER ST~TION UN.IT 3

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THIS WILL CONFIRM A CONVERSATIQN'WITH F MAURA OF YOUR.OfFICE AT 9 O'CLOCK. AMT.HIS DATE .CONCERNING A FAILURE OF THE *AIR'SUPPLY TO THE' FEED WATER .

,REGULATING VALVE.. THAT.

' . OCCURRED JUNE 23,. 197 4 AT 1014 PM THIS FAILURE STARTED A CHAIN OF' EVENTS THAT CAUSED

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.. . - .*

SEVERE VIBRATIONS AND DAMAGE TO PIP.E HANGERS AND SUPPORTS AN '*

'

ORDERLY SHUT DOWN OF' THE REACTOR WAS INI TIA.TED, THE REACTOR WAS SUB CRITICAL AT' 7 O'CLOCK AM B B STEPHENSON SUPERINJt~DENT DRESDEN NUCLEAR POWER STATION.

COMMONWEALTH EDISON CO ROUTE 1 MORRIS IL 60450 5530P~DT

• USAEC HQS GTWN I .

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