ML20084M722

Telecopy AO 3-72-4:on 720817,during Safeguards Testing, Component Cooling Water Pump 3A Failed to Start.Caused by Contacts in Breaker Closing Circuitry Welded Shut.Contacts Replaced

ML20084M722
Person / Time
Site:	Turkey Point
Issue date:	08/18/1972
From:	Schmidt A FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20084M698	List: ML20084M696 ML20084M722
References
AO-3-72-4, NUDOCS 8306020304
Download: ML20084M722 (2)

Text

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2C2C 117 A NL PDF HI AMI FLO 17 PliS IIRECTOR RECION 2 3 DIRECTORATE OF REGULATORY OPERATICNS, US ATOHYC ENERGY COMMISSICH, DLR AS AP AM 236 PEACHTREE ST NORTH WEST SUITE 215 ATLA TLORIBA POWER & LIGHT CO. TURKEY POINT REPORT AT ADNORMAL OCCUR ANCE 3-72-4 ON. AUGUST 17 197 2 DURING THE PERFORMANCE OF Ab3ITIONAL PRE OPERATICNAL S AFEGUARDS TESTING ON UNIT THREE A SIMULATED LOSS OF OUTSIDE POWER FOLLOWED BY A SIMULATED S AFETY INJECTICN CONBITION RESULTED IN FAILURE OF THE THREE A COMPONENT COOLING PUMP TO START ALL OTHER S AFEGUARDS EQUIPMENT 3

FUNCTION PROPERLY INVESTIGATION REVEALED Cc'ITACTS IN THE BREAXERS CLOSING CIRCUITRY WELDED SHUT REFEATED PESTING OF THE PUMP AFTER THE CONTAC13 WERE REPLACED FAILED TO DISCLOSE ANY

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START AUTCMATICALLY AND THE CAUSE FOR THE WELDING SHUT OF THE CONTACT ARE UNDER INVESTICATION IF AN ACTUAL LOSS OF OFFSITE .,

POWER HAD OCCURED FOLLOWED BY INITIATION OF SAFETY INJECTION

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