ML20084Q069

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Ro:On 740302,explosion Occurred in Offgas Holdup Line. Cause Unknown.Investigation in Progress
ML20084Q069
Person / Time
Site: Quad Cities 
Issue date: 03/03/1974
From: Newkirk R
COMMONWEALTH EDISON CO.
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20084Q060 List:
References
NUDOCS 8306130110
Download: ML20084Q069 (2)


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e g>. JAMES KEPPLER US ATOMIC ENERGY COMMISSION 799 ROOSEVELT RD GLEN El. LYN IL 60137 O

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REFERENCE:

QUAD CITIES NUCLEAR POWER STATION DOCKET #50-254, g

DPR 29, APPENDIX A SECTION 1.0. A.3, 1.0.A.5 WITH UNIT ONE OPERATING AT ABOUT 425MWE AND EXPLOSION OCCURED Q I N THE OFF GAS HOLDUP LINE AT 2020 ON MARCH 2 1974. THE EFFECTED g1 AIR EJECTOR AND OFF GAS FILTER WERE ISOLATED BEFORE CONTINUING THE STARTUP. CHIMMNEY RELEASE RATE WAS LESS THAN 50 PERCENT j

O OF THE LIMITS OF SPECIFICATION 3.8. A AT ALL TIMES AND RETURNED g'

TO ABOUT 25 THOUSA ND MICR0 CURIES PER SECOND WITHIN TWO HOURS.

THE CAUSE OF THE EXPLOSION IS UNKNOWN AN INVESTIGATION IS IN O PROGRESS g

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  1. 4Ef t 65 799 ROOSEVELT ROAD gegg GLEN ELLYN, ILLINOIS 60137 (312) 858-2660 A.

RO Inspection Report No.

Transmittal Date Dietribution:

Distribution:

RO Chief, FS&EB RO Chief, FS&EB RO:HQ (5)

RO:HQ (4)

DR Central Files L:D/D for Fuels & Materials Regulctory Standards (3)

DR Central Files Licensing (13)

RO Files RO Files B.

RO Inquiry Report No.

Transmittal Date Distribution:

Distribution:

RO Chief, FS&EB RO Chief, FS&EB RO:HQ (5)

RO:HQ DR Central Files DR Central Files Regulatory Standards (3)

RO Files Licensing (13)

RO Files C.

Incident Notification From:

Com=onwealth Edison Co. Docket No. 50-254 (Licensee & Docket No. (or License No.)

1 Transmittal Date March 7, 1974 Distribution:

Distribution:

RO Chief, FS&EB RO Chief, FS&EB

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RO:HQ (4)

RO:HQ (4)

Licensing (4)

L:D/D for Fuels & Materials

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DR Central Files DR Central Files

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R0 Files RO Files 1

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