ML17252A517

Letter Confirming a 07/16/1974 Conversation Concerning the Failure to Reach the Required Containment Oxygen Concentration of 4 Percent within 24 Hours of Placing Mode Switch in Run Position - Dresden Unit 3

ML17252A517
Person / Time
Site:	Dresden
Issue date:	07/16/1974
From:	Stephenson B Commonwealth Edison Co
To:	O'Leary J US Atomic Energy Commission (AEC)
References
Download: ML17252A517 (1)

Text

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~ '6 o- 2 4 9 wu w*sH TLXB020 TAPW WAC161Cl552><1-032957Cl97>PD 07/16/74 JCS IPMVEI 8 MVN '

02137.TDVE MORRIS ILL 111 07-16 100P CDT*

PMS J F 0'1 EARY, DIRECTOR mR~CIURATE OF LICENSING u*s ATOMIC ~NERGY CbMMISSIO~ wux WASH DC 20 545

SUBJECT:

DPR-25 DRESDEN NUCLEAR POWER STATION UNIT 3.

lliIS WILL CONFIRM A CONVERSATION WITH r* MAURA OF YOUR OFFICE AT 10: 30 HRS THIS DATE CONCERNING THE FAI,LURE TO REACH THE REQUIRED CONTAINMENT.OXYGEN CONCENTRATION OF 4PERCENT WITHIN 24 HRS CF PLACING THE MODE SWITCH IN THE RUN POSITION* AS REQUIRED BY

~ECIFICATION 3.7.A.5*8 OF THE TECHNICAL SPECI,ICATION AT 9:35 AMON THIS DATE WHEN THE TWENTY_ FOUR HOURS EXPIRED CONTAINMENT OXYGEN CONCENTRATION AVERAGED 4. 5* PERCENT. IN.

IN~RTING IS CONTINUING AND 1HE CONCENTRTION SHOULD BE WITHIN SPEC SHORTLY. ADDITIONAL DETAILS WILL BE FORTH COMING IN THE FORM 0

CF <<"TEN

.. DAY LETTER .

B B STEPHENSON, .. SUPE_R.INTENDENT l'., . '

':'. . . . ..~~* .::.::.- .

DRESDEN NUCLEAR POW-ER ST1A TI ON COMMONWEALTH EDISON. COMPANY RR #1 MORRIS ILLINOIS 60450 f\NNN

0\

/

856P EDT. /

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USAEC HQS GTWN