ML19210D309

LER 79-115/03L-0:on 791030,contact 2 of 2E41-NOO4 Actuated at Water Level Greater than Tech Specs Limit.Caused by Instrument Drift.Instrument Recalibr & Procedure HNP-2-3307 Performed Satisfactorily

ML19210D309
Person / Time
Site:	Hatch
Issue date:	11/19/1979
From:	Nix R GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19210D306	List: ML19210D305 ML19210D309
References
LER-79-115-03L, LER-79-115-3L, NUDOCS 7911260287
Download: ML19210D309 (1)

Text

NRC FORM 366 U.S. NUCL E AR REGULATORY COMMISSION 87 77)

LICENSEE EVENT REPORT CONTROL BLOCK: l~l l l l l l (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6 ,

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EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h o 2 l While performing surveillance procedure HNP-2-3307, HPCI Steam Line dP Functional l o 3 l Test and Calibration, the No. 2 contact of 2E41-N004 actuated at +200 inches of l 0 4 l water. The Tech Spec limit is 5+196 inches of water for this instrument. The lO l3l l No. I contact of 2E41-N004 actuated within tolerance. Both contacts of 2E41-N005 l O o l in the other channel were found to be set properly. Therefore, thekiPCIsystem l O 7 l would have operated satisfactorily. There was no effect on plant personnel, equip-l o a i ment or the environment. A similar occurrence was reported on LER 2-79-83. l 80 7 8 9 SYSTEM CAUSE CAUSE COMP. VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SU8 CODE O 9 l S l F l@ {@ l El@ l 1l Nl Sl Tl Rl Ul@ y@ ]@

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CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h 1 Ol The cause has been attributed to instrument drift. The instrument was recalibrated l l t li ] ] and surveillance procedure HNP-2-3307 was performed satisfactorily.

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11 141 1 7 8 9 80 A S *; POWER OTHER STATUS DISCOV RY DISCOVERY DESCRIPTION i 5 W@ 0l9l9l@l NA l l B l@l Surveillance Testing l ACTIVITY CONTENT RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELE ASE 1 6 NA l l NA l 7 8 9 W @ lZ l@ l to 11 44 45 80 PERSONNEL EXPOSURES NUMBE R TYPE DESCRIPTION i 7 l 0 l 0 l 0 l@[Z_j@l NA l rERSONNE L INJUdIES i NUMBER DESCRIP TION ) '

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