ML19344A801

LER 80-021/03L-0:on 800718,w/unit at Cold Shutdown for Steam Generator Maint & Insp,Replacement of Inverter 13 Revealed Lack of Seismic Analysis for Mounting Inverter.Caused by Personnel Error

ML19344A801
Person / Time
Site:	Prairie Island
Issue date:	08/15/1980
From:	Hunstad A NORTHERN STATES POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19344A798	List: ML19344A797 ML19344A801
References
LER-80-021-03L-01, LER-80-21-3L-1, NUDOCS 8008220222
Download: ML19344A801 (1)

Text

O~Rc ,OR S u. NuCLEA= REcuLATe2, CO ,S.,0~ l 177M l LICENSEE EVENT REPORT l I

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(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) l 10 t8i 9l I yl u i n I y I p l i l@l 01 01 -10 10 101010l-101Ol@l4 I il II ti il@l57 C AI T $8l@

7 LICENSEE COOE to 15 LICENSE NUM8ER 25 26 LICENSE Tvrt JO CON'T IOI1l 3$"C' 60i L l@l_0l 51010i Ol 21 81 2@l 0 l 7EVENT l 1DATP, l 8 ! 8 I O @l olREPORT 91 ilDATE sl 9 I n80 l@ ,

7 8 61 DOCKET NUMBER 68 69 14 75 i EVENT OESCRirTION ANO PROBABLE CONSEQUENCES h M lWieh the itnie ne enld chivednun fnv e c on.n gonoveene m,4nennnnco nna inenace4nn i 10 l a l f replacement of No. 13 inverter was undertaken. Durine the course of the unrk. l 10141 l discrepancies were found in the work author 4 7,einn nneknga. A enacini na Ana4* me l i

10151 ldone en the Desfon Chance Packnge which revamlad cha inck nf cafemic nnot,efe e ne l 1016 I imountine the inverepr? n Renn Unrk nvaar une 4eenoa Tack snoc A 7_n_orci ann 14ae l 10171 lNor receti*ive. Nn afface nn niih14c ho,1rh nna e,coey pinne c e n .c.,n me anno l l0l8l twith Instrument Bus 113 powered by Panel 117 as allowed hv Toch Anor 1.7.A 7- l 7 8 9 80 SYSTEM CAUSE CAUSE COMP. VALVE CODE CODE SU8 CODE COMPONENT CODE SUSCODE SU8 CODE 10691 7 9 I E l Dl@ W@ l Xl@ l Zl Zl Zl Zl Zl Zl@ y@ lZ l@

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_ SEQUENTI AL OCCURRENCE REPORT REVISION LER EVENTYEAR REPORT NO. COOE TYPE NO.

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42 l43Z l@ lZ se 19 l 9l 9l@ 47 CAUSE OESCRIPTION ANO CORRECTIVE ACTIONS h li10ll Personnel error. Imorovements in the Design ebnnge nrncess are haing ntirsi,ad - J Ii I i i l 1 LLL1J l l U_L_J l I i 4 I I 7 8 9 80 ST  % POWER OTHER STATUS I O RV OISCOVERY DESCR,PTION li15l d @ lnl nl M I MA l U @l As Stated above. I ACTIVITY CO TENT aELEASE AMOUNT OF ACTIVITY LOCATION OP RELEASE NA l i l 869 l b @O CFRELEASEW@l 7 to 11 44 i l 45 NA 80 l

PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION l i l 71 10 10 l 0 l@l' Z l@l NA l PERSONNE'L INJU IES NUVSER DESCRIPTION W l8 0l 7 9 0l Ol@l 11 12 NA 80 l

LOSS OF OR DAMAGE TO PACILITY TYPE OESCRIPTION 9 (_Zj@l NA I 7 8 9 to 80 ISSUE OE ,RIPTION e IJ_LO_I Ls[81 "A I I!IIIIIlIlIIIi 7 s 9 10 68 69 80 ;

NAME OF PREPARER i i M"ne*aa PHONE:

612-388-4767  ?

o 8008220 2.22