ML19282C511

LER 79-017/03L-1 on 790227:variations in Speed of HPCI Turbine Occurred During Test.Caused by Turbine Control Loop Failure.Controls Calibrated & Actuator Determined to Be Inoperable.Actuator Was Replaced

ML19282C511
Person / Time
Site:	Hatch
Issue date:	03/26/1979
From:	Nix R GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19282C505	List: ML19282C503 ML19282C511
References
LER-79-017-03L-02, LER-79-17-3L-2, NUDOCS 7903300255
Download: ML19282C511 (1)

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EVENT DESCRIPTION AND PRC0ABLE CCNSECUENCES h l nor t ag steady ce,te coeration uh41 e , e r om neing en norf - m:n 1_1,01 nTm T o, - , f a 2 O 3 l Ra ted Flow. the orecedure had to be discontinued due to varisticns in the speed I I of the HPCI turbine. HPCI wa s declared inonerable oer Tac ha 4 c,1 " wiF4c *4ane I o 8 s 1 3.5.D.2. The ADS. RCIC. RHR systems. LPCI mcd e. and core snrav systems were l o

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44 47 33 J4 3b a6 CAUSE DESCRIPTION AND CCRRECTIVE ACTIONS 1 o l The cmtse wa s attributed to turbine centrol loen f ailure. The controls were calibratedl i ii l and the ac tuator was d etermined to be inoperable. After the ac tuater w,s re,lacad I i 2 1 the HPCI Ratej Flow procedure and HPCI Quick Sttr e test were successfullv comleted . I i 3 I l

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