05000313/LER-1980-013-03, High Pressure Injection (HPI) Was Manually Initiated & CV-1227 (HPI Valve,Loop B) Failed to Open on Demand.Caused by Stuck Manual Engaging Lever.Personnel Freed Lever

High Pressure Injection (HPI) Was Manually Initiated & CV-1227 (HPI Valve,Loop B) Failed to Open on Demand.Caused by Stuck Manual Engaging Lever.Personnel Freed Lever

ML20010F939
Person / Time
Site:	Arkansas Nuclear
Issue date:	08/13/1981
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML20010F935	List:
References
LER-80-013-03X, LER-80-13-3X, NUDOCS 8109150133
Download: ML20010F939 (1)

LER-1980-013, High Pressure Injection (HPI) Was Manually Initiated & CV-1227 (HPI Valve,Loop B) Failed to Open on Demand.Caused by Stuck Manual Engaging Lever.Personnel Freed Lever

Event date:
Report date:
3131980013R03 - NRC Website

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REVISED REPORT - PREVIOUS REPORT DATE 5/5/80 NRC FORM y,6 U. 5. NUCLE AR REGULATORY COMMISSsOes (777)

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pS 60 68 DOCK ET Nuuggn to 69 EVENT DATE 74 iS HEPoHfDATE 80 ROB AGLE CONSEQUENCES Oio EVENT DESCRIP flON AND rJl During a reactor trip on loss of offsite power Hiah Pressare In.iection i e i was manually initiated and CV-1227 (HPI Valve, Loop B) failed to open qn_J o. i demand.

HPI valves CV-1228, CV-1219, and CV-1220 +:are available and usedi gto maintain RCS pressure and inventory. There have been no similar I

o s o. i occurrences.

Reportable per T.S.

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3J 34 35 36 JJ 40 41 42 43 44 op CAUSE DESCR.PTION AND CORRECflVE ACTIONS 27 l The/ manual enoaoina lever was found / stuck in the manual enaaaed Dosition. !

s o i This type valve operator is designed to automatically disengage the valvet 1 operator from the manual enoaaed aosition when operated electrically.

I i 2 g l Maintenance personnel investigated the failure & [ freed the manual enaaqine Ilever. The valve was operated electrically several times with no malfunctions.

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