ML20085J808

Telecopy Ro:On 740623,air Supply to Feedwater Regulating Valve Failed Causing Severe Vibrations & Damage to Pipe Hangers & Supports.Cause Not Stated.Shutdown Initiated

ML20085J808
Person / Time
Site:	Dresden
Issue date:	06/24/1974
From:	Stephenson B COMMONWEALTH EDISON CO.
To:	Oleary J US ATOMIC ENERGY COMMISSION (AEC)
Shared Package
ML20085J812	List: ML20085J808 ML20085J815
References
NUDOCS 8310190096
Download: ML20085J808 (1)

Text

..

?l O

g

(_c/

$8 s

)

,y p e, 6 USAEC HOS OTdN 50-249 E ;Eil-}Y CONH' p

• U edH 1L 4 tv.0 6 w AF ee 4( 16 S4 )( l -033 /93C ll 3CPd )PD 62/ e'd/ 7 4 I50I ICS I P.W E l b FN N cec 77 04077 TOVd A0t<RIS IL VJ'06-d4 233P COT yt

.{,

tAS JF O'LEAH( ulniCTOR

.[.

//'

9o <6 fil OlHiClux! ATE Of LICENSINb

<ds

-s w

,a -

e e wUA US ATOMIC ENinuY CO.*:AI5S10N

.g,f. i%, hs4,

/

WASHINGTON O C 20545

@p

/&. 5./

SU tiJ EC T OPR-25 DHESuiN NUCLEAN POWER STATIO9 Uvli 3

.C Tri13 41ct i. o s e i n e, a

• nvu-w a ! t.'u

'T-F. ; a.U ",a,

'J.~

• "Cui; GFF ic e i

9 O'OLOCK A.9 iniS UATE CONC 6HNINu A FAILURE OF THE AlH SUPPLY TO Trid FiED 4ATER eiCULA TING VALVE InAl UCCURMED JUNE d3, 1974 AT 1014 P.*4 THIS FAILURE STARTdu A Cr1AIN OF EVENTS THAT CAUSED SfVERd VluNA TIONS AND O A '.A G E TO PIPE etANbiHS AND SUPPORTS AN ORDERLY SnUT DOWN OF THE REACTOR.vAS INITIATED, THE REACTOR WAS RJd CRITICAL AT 7 O'CLCCK AX u 8 STEPHENSON SUPERINTENDENT ONESuEN NUCLEAN PO4EH STATION CCMONNEALTH EDISON C0 HOU16 i MURRIS IL 60450 5530PE D T s

e l

LSAEC HGS GTAN I[

373g

/', M

f (b )

0310190096 740624 PDRADOCK05000g4y B

.j bM*..W$ ukA5EUN e

,