ML20084P986

Ro:On 740315,drywell Oxygen Concentration Exceeded Tech Spec.Nitrogen Regulator Bypass Valve Opened to Let in More Nitrogen to Primary Containment.Nitrogen Tank Inventory Full & Oxygen Concentration Brought to 5%

ML20084P986
Person / Time
Site:	Quad Cities
Issue date:	03/15/1974
From:	Kalivianakis N COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20084P957	List: ML20084P954 ML20084P986 ML20084P997
References
NUDOCS 8306130088
Download: ML20084P986 (4)

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e REFERENCE QUAD CITY'S NUCLEAR POWER STATION LICENSE DPR-30 DOCXET

-O 50265 APPENDIX A SECTIONS 1.0.A.2 AND 3.7. A.S. A AND 6.6.9 AT O-ABOUT 1200 ON IMRCH 15 1974 THE UNIT 2 DRYWELL OXYGEN CONCENTRATION WAS DETERMINED 10 BE 5.5 PERCENT WHICH IS SLIGHTLY IN EXCESS O

0F THE 5 PERCENT ALLOWED BY TECHNICAL SPECIFICATION 3.7. A.5. A O

THE NITR0 GEN REGULATOR BYPASS VALVE WAS OPENED 70 LET IN MORE NITROGEN TO PRIMARY CONTAINMENT NITROGEN TANX INVENTORY IS FULL O

AND THE OXYGEN CONCENTRATION WAS BROUGHT TO 5 PERCENT AT 4:30PM O

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Transmittal Date Distribution:

Distribution:

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

RO:HQ (4)

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

DR Central Files Licensing (13)

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RO Inquiry Report No.

Transmittal Date Distribution:

Distribution:

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

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

R0 Files Licensing (13)

RO Files C.

Incident Notification From: Commonwealth Edison Co. Docket No. 50-265 (Licensee & Docket No. (or License No.)

Transmittal Date

March 27, 1974 Distribution:

Distribution:

.R0_ Chief, FS&EB R0 Chief, FS&EB RO:HQ (4)

RO:HQ (4)

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REFERENCE QUAD CITY'S tlUCLEAR POUER STATION LICE!!SE DPR-30 DOCKET 50265 APPENDIX A SECTIONS 1.0. A.2 AND 3.7. A.S. A AtID. G.6.8 AT ABOUT 1200 ON IMRCH 15 1974 THE UNIT 2 DRYUELL OXYGE!! CONCENTRATION WAS DETERt11NED 1D BE 5.5 PERCEllT UHICH IS SLIGHTLY IN EXCESS OF THE 5 PERCENT ALLOVED BY TECHNICAL SPECIFICATION 3.7. A.5. A THE NITROGEN REGULATOR BYPASS VALVE WAS OPENED TO LET IN MORE NITROGE!! TO PRIMARY CONTAINMENT tlITROGEN TANX INVE!) TORY IS FULL AND Ti!E OXYGEN CONCENTRATION WAS BROUGHT TO 5 PERCEllT AT 4:30PM N J KALIVIANAXIS 1833 EDT

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Transnittal Date Distribution:

Distribution:

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

RO:HQ (4)

DR Central Files L:D/D for Fuels & IUterials Regulatory Standards (3)

DR Central Files Licensing (13)

R0 F11.cs R0 Files B.

RO I luiry Report No.

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ttal I' te Jiouribstion:

Dis tribut. ion :

R0 Chici, FSSEB R0 Ch4ef, FS&EB RO:HQ (5)

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

R0 Files Licena ing (13) ',

RO Files C.

Incid: at Notification From: Cotronwealth Edison Co. Docket No. 50-265 (Licensea & Decket No. (or License No.)

Trancnittal Date

March 27, 1974 Dictribution:

Distribution:

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

R0:HQ (4)

Licen sit., (4)

L:D/D for Fuels & Ifaterials DR Centeil Files DR Central Files Ido Files RO Files

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