ML20085D105

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Telecopy Ao:On 730620,during Test of Turbine Redundant Overspeed Trip Sys,Turbine Trip Occurred.Caused by High Pressurizer Pressure.Turbine Stop Valve Limit Switch Adjusted
ML20085D105
Person / Time
Site: Robinson Duke Energy icon.png
Issue date: 06/21/1973
From: Furr B
CAROLINA POWER & LIGHT CO.
To: Oleary J
US ATOMIC ENERGY COMMISSION (AEC)
Shared Package
ML20085D103 List:
References
NUDOCS 8307200435
Download: ML20085D105 (1)


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PAS JOHN S OLEARY DIRECTORAlE OF LICiNSING US ATO41C c.N erb f C O.%i! S S I ON WASH I NbT ON UC 20546 IN ACCONDANCE Wild 6 6 2 0F THE TECHNICAL SPECIFFICATION, THE FOLLOWINU ASNORAAL OCCURENCE IS HEPORTED: ON JUVE 20,

1973, AT 1454 HOURS WHILE PERFORMING A TEST OF 1HE TUR8!NE REDUNDANT 00ERSPEED TRIP SYSTEM (TROTS) A T URts! N E TRIP OCCURRED. AN IMAEDIATE REACTOR TRIP OID NOT OCCUR DUE 10 A TURHINE STOP VALVE LIMIT S4 ITCH MALFUNCTION. A REAC10R TRIP DID CCCUR DUE TO HIGH PRESSURIZER PRES SURE.

THE TURUINE STOP VALVE LIMIT SWITCH WAS ADJUSTED AND SATISFACTORILY 0)ERATED PRIOR 10 INITATING POWER OPERATION.

THE INCIDENT HAS DEEN REVIEWED BY THE PLANT NUCLEAR SAFETY COMMITTEE A90 SAFE REACTOR OPERATION IS ASSURED.

THIS WAS REPORTED TO MR SIEDLE OF DRO BY TELEPHONE ON JUNE 21 1973 O J FURR PLANT MGR CAROLINA POWER AND LIGHT CO H 8 ROBINSON SEG PLANT riARTSVILLE SC PO BOX 790 29550 A

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