ML20085D109

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

ML20085D109
Person / Time
Site:	Robinson
Issue date:	06/21/1973
From:	Furr B CAROLINA POWER & LIGHT CO.
To:	Moseley N NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20085D103	List: ML20085D105 ML20085D109 ML20085D112
References
NUDOCS 8307200441
Download: ML20085D109 (2)

Text

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OEERP EDT JUN 21 73 AA142 AADl95(1429)(2-234333E172)PD 06/21/73 1429 q.

ICS IPMMTZZ CSP 8033321351 TDMT HARTSVILLE SC 119 06-21 0229P EST PMS NORMAN C MOSELY DIRECTOR ,.py; [3, // 8 REGION 2 AEC DIRECTORAGE REGULATORY 0PERATIONS DRL 230 PEACHTREE ST ATLANTA G A 30303 IN ACCORDANCE WITH 6.6.2 0F THE TECHNICAL SPECIFFICATION, THE FOLLOVING ABNORMAL OCCURENCE IS REPORTED: ON JUNE 20, 1973, ,

AT 1454 HOURS WHILE PERFORMING A TEST OF THE TURBINE REDUNDANT OVERSPEED TRIP SYSTEM (TROTS) A TURBINE TRIP OCCURRED. AN IMMEDIATE REACTOR TRIP DID NOT OCCUR DUE TO A TURBINE STOP VALVE LIMIT SVITCH MALFUNCTION. A REACTOR TRIP DID OCCUR DUE TO HIGH PRESSURIZER PRESSURE.

THE TU9BINE STOP VALVE LIMIT SWITCH WAS ADJUSTED AND SATISFACTORILY _

OPERATED PRIOR TO INITATING PO'dE9 OPERATION.

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l l 3 THE INCIDENT HAS BEEN REVIEWED BY THE PLANT NUCLEAR SAFETY COMMITTEE AND SAFE REACTOR OPERATION IS ASSURED.

'1 THIS WAS REPORTED TO MR SIEDLE OF DRO BY TELEPHONE ON JUNE 21 1973 ,

8 J FURR PLANT MGR CAROLINA POWER AND LIGHT C0 H B ROBINSON SEG PLANT HARTSVILLE SC PO BOX 790 29550 cr

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O O 91 JUN 2 21973 Telegram from Carolina Power and Light Company, B. J. Furr, dated June 21, 1973 261 ec w/ encl:

H. D. Thornburg (2), RO 0:HQ (5)

DR Central Files Regulatory Standards (3)

Directorate of Licensing (13) cc encl. only:

PDR Local PDR l NSIC i

DTIE, OR State C d 3%

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