ML20084J193

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Telecopy Ao:On 721020,core Spray Pump Motor Air Circuit Break Failed to Close.Caused by Failed Auxiliary Contact in Circuit Breaker Cubicles
ML20084J193
Person / Time
Site: Quad Cities Constellation icon.png
Issue date: 10/21/1972
From: Stephenson B
COMMONWEALTH EDISON CO.
To: Jordan E
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20084J183 List:
References
NUDOCS 8305120229
Download: ML20084J193 (2)


Text

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fs 317P EST OCT 2172 DEA 617 EE

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REXERENCE QUAD CITY NUCLEAR POER STATION DPR 29 DPR 30 SECTION 1.0.A.4 AND 6 6.A.3 AND 6.6.B.3 AT 959PM VITH UNIT OE REACTOR OPERATINC IN TE

  • RUN' MODE TE CORE SPRAY PUMP MOTOR AIR CIRCUIT BREAK (1422 i

i-ON BUS 14-1) FOR CORE SPRAY PUMP 1-1401B FAILED TO CLOSE ON 1

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TEST THE CAUSE OF FAILURE WAS AN AUXILARY CONTACT IN TE

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\\ TESTED AT 115AM ON 10/21/72 AT 951PM VITH UNIT TWO REACTO CIRCUIT BREAER CUBICLES. TE 1-B CORE SPRAY PUMP WAS

[ MODE THIE HIGH PRSSURE COOLANT INJECTION SYSTEM FAIED TO

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OPERA 1T IN TE TEST MODE.TE REACTOR CORE ISOLATION C00LINC SYSTEM WAS TES1TD SATISFACTORILY AT 1030PM ON 10/20/72.

TE REACTOR WAS IN COLD SHUT DOWN AT 830AM ON 10/21/72 B B STEPHENSON

!C 29 30 1.0. A.4 6.6.A.3 6.6.B.3 959PM 14 22 14-1 1-1401B b

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REGULATORY OPERATIONS, REGION III I

Incident Notification By:

Commonwealth Edison Co. - Docket No. 50-254 Docket Nc. 50-265 Transmittal Date October 27, 1972 Distribution:

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