ML17252B005
| ML17252B005 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 01/09/1973 |
| From: | Worden W Commonwealth Edison Co |
| To: | Grier B US Atomic Energy Commission (AEC) |
| References | |
| Download: ML17252B005 (2) | |
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REGULATORY OPERATIONS, REGION III A.
RO Inspection Report No.
Transmittal Date i.
Distribution:
RO Chief, l{.T&OB or RO Chief, RCR RO:HQ. (5)
DR Central Files Regulatory. Standards (3)
Lic;:ensing (13).
B.
RO Inquiry Report No.
Transmittal Date
- Distributio:i.:
. RO Chief,
~:f::&OB or RO Chief, RCB (2_)
RO:HQ (5)
DR Central Files Regulatory Standards (3)
Licensing (13)
Distribution:
RO Chief, M&FFB
- RO:HQ (4)****
L:D/D for Fuel & Materials
- . DR Central. Files Distribution:
RO Chief, N&FFB.
RO:HQ DR Central Files I
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Incident Notification From:
Commonwealth Edison (Dresden 3)
DPR.:..25 (Licensee & Docket No. (or License No.)
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Transmittal Date January 9, 1973
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Distribution:
RO Chief, RT&OB or RO Chief,_ RCB RO:HQ (4).
Licensing (4)
DR Central Files
- Distribution:
RO Chief, H&FFB..
RO:HQ (4)
L:D/D fdr Fu~l & Materials DR Central Files I
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SUBJECT:
D.P.R.-25 DRESDEN NUCLEAR POWE-R. STATION UNIT 3: *
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IH!S WILL CONFIRM A CONVERSATION WITH :MR* H. DANCE OF YOUR OFFICE*
AT 1630 HOURS. JANUARY 3 CONCERNING DILUTION o'F BORO~ SOLUTION IN*..
- THE STAND BY LIQUID CONTROL TANK. ON JANUARY :i.,3 AT 063L HOURS THE. **.
STAND BY LIQU.ID CONTROL TANK WAS SUPPOSEDLY P;LACED.ON* A IR.SPARGE::::*
THIS WAS DONE IN PREPARATION FOR A BORON SAMPLE TO BK TAKEN LA.IER...... -. _
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>-:i:-120 1 ~Ji.-DAY. BY 0810 HOURS IT WAS REPORTED THAT THE TANK 11/AS OVER FLOWING
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\\nAr:*VALUE CHECK ON THE SYSTEM DETERMINED THAT (lN ADDITION TO THE AIR SP.*
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ARGE VAL.VE, A WATER FILL VALVE WAS ALSO OPEN. THE WATER FILLED VALVE WAS
.CLOSED AND A BORON SAMPLE WAS TAKEN TO DETERMINE THE BORON'CONCENIRAT ION.
AI THE SAME TIME, IN ANTICIPATION OF THE CONCENTRATION BEING TOO LOW I
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AN ORDERLY SHUT DOWN. WAS INITIAIED.
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A DISCUSS ION WITH IHE PEOPLE: ON SHIFT REVEALED. THAT THE OPERATOR.,
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. ERRORED IN VVALVING IN THE IANK FOR AiR SPARGE*.A. REVIE1.(;0F.*
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. *OPERATING. PROCEOURES WILL 8£ MADE.ro DET~RMINE' IF*~ REvi110N 'oR..
ADDITION CAN BE MADE TO ELIMINATE THE ~OSSIBILITY OF THIS SIIUATION F R0£1 RE-.
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OCCUR!NG. AT THIS TIME LOAD 15 BEING REDUCED AT THE RATE OF g M~W.E.
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SF-1201 (R5-69}
PER.HOUR THIS LOAD DROP WILL c'oNTINUE UNTIL' EITHER THE. UNIT TS SHUT.
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DOWN OR THE BORON CONCENTRATION IS WIJKIN LIMITS SHOW~ IN FIGURE *
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3.4.1 OF TECHNICAL. SPECIFICATION
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W* Po WORDEN, SUPT~
COMMONWEALTH EDISON DRESDEN NUCLEAR POWER STATION RT 1 MORRIS ILL JAN 8. 1S7J
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