ML20084Q766

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Ro:On 731011,vent Stack Release Rate Was 268 % of Limit. Caused by Seal Ring Leak on Cleanup Sys HX Isolation Valve
ML20084Q766
Person / Time
Site: Quad Cities  
Issue date: 10/11/1973
From: Stephenson B
COMMONWEALTH EDISON CO.
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20084Q697 List:
References
NUDOCS 8306140053
Download: ML20084Q766 (1)


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58 REFERENCE QUAD CITY NUCLEAR POWER STATION DOCKET.. NUMBER 50254 h

AND 50265 DPR 29 AND 30 APPENDIX A, SECTION 1.0.A.2 AND UTB.T.'A ~ -

$8 AND 6.6.8 ON OCTOBER 10 1973 THE VENT STACK RELEASE R ATE WAS 268 PERCENT OF THE LIMIT OF SPECIFICATION 3.8.B.5.A. THIS WAS S$m ATTRIBUTED TO A SEAL RING LEAK ON A CLEANUP SYSTEM HEAT EXCHANGER ISOLATION VALVE. THIS SAME CONDITION HAS CAUSED THE REACTOR BUILDING VENT STACK RELEASE RATE FOR OCTOBER !! 1973 TO EXCEED OCT INE DIAIT OF SPECIFICATION 3.8.B.5. A BY 76 PERCENT.

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A.

RO Inspection Report No.

Transmittal Date Distribution:

Distribution:

R0 Chief, FS&EB RO Chief, FS&EB RO:HQ (5)

RO:HQ (4)

DR Central Files L:D/D for Fuel & Materials Regulatory Standards (3)

DR Central Files Licensing (13)

RO Files RO Files B.

RO Inquiry Report No.

Transmittal Date Distribution:

Distribution:

R0 Chief, FS&EB R0 Chief, FS&EB RO:HQ (5)

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

RO Files Licensing (13)

R0 Files C.

Incident Notification From: Co:::monwealth Edison Company, 50-254 & 50-265 (Licensee & Docket No. (or License No.)

Transmittal Date

November 9, 1973

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Distribution:

Distribution:

R0 Chief. FS&EB R0 chief, FS&EB RO:HQ (4)

RO:HQ (4)

Licensing (4)

L:D/D for Fuel & Materials

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DR Central Files DR Central Files f

RO Files RO Files

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