ML20084P997

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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%
ML20084P997
Person / Time
Site: Quad Cities Constellation icon.png
Issue date: 03/15/1974
From: Kalivianakis N
COMMONWEALTH EDISON CO.
To: Oleary J
US ATOMIC ENERGY COMMISSION (AEC)
Shared Package
ML20084P957 List:
References
NUDOCS 8306130092
Download: ML20084P997 (1)


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REFERENCE 00A0 CITYlS NUCLEAR POWER STATION LICENSE OPR=30 DOCKET O

t 50265 APPENDIX A SECTIONS 1.0.A.2 AND 3.7 A.5.A AND 6,6.B AT ABOUT 1200 DN MARCH 15 1970 THE UNIT 2 ORYWELL OXYGEN CONCENTRATION t

WAS DETERMINED TO BE 5.5 PERCENT WHICH IS SLIGHTLY IN EXCESS O

OF THE 5 PERCENT ALLonED BY TECHNICAL SPECIFICATIGN 3.7 A.S.A THE NITROGEN REGULATOR BYPASS VALVE WAS OPENED TO LET IN MORE t

NITROGEN TO PRIMARY CONTAINMENT NITROGEN TANK INVENTORY IS FULL C

AND inE 0xYGEN CONCENTRATION aAS BROUGHT TO 5 PERCENT AT dl30PM N J KALIVIANA<IS 17149 EST MGMWSHT HSB

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