ML20052B412

LER 82-010/03L-0:on 820325,while Unit 2 Was in Normal Operation & Unit 3 in Refuel,Pilot Cell Voltage Readings Were Not Taken for Units 2 & 3 Dc Batteries.Caused by Operator Error

ML20052B412
Person / Time
Site:	Dresden
Issue date:	04/20/1982
From:	Morgan W COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20052B403	List: ML20052B402 ML20052B412
References
LER-82-010-03L-01, LER-82-10-3L-1, NUDOCS 8204300390
Download: ML20052B412 (2)

Text

{{#Wiki_filter:_ _ - LICENSEE EVENT REPORT CONTROL sLoCx: l l l 1 -l l@ (Pt. sass PMINT 00 TYPt ALL REQUIRED INPORMATIONI t o lil8 l9 il t i UCENSEE

• n l a iCODE s 12 l@l 0101 - 10101010 14 15 I O I - 10 l 0 20Gl4 uCENSE NUMsER 2e 11 Iilil11@l uCENsE TYPE JC l

5 7 CAT 54 l@ CONT 4 Qiil$ F souRc l60L @l 0l 5l 0lQQCxET 61 0 l NuMgER 0 l 2 l 3 l768@l 690l 312 l 5 l 8 l 274@l 750l 4REPORT EVENT QATE l 2 l O018 ATE l 280l@ EVENT DESCRIPTION AND PROSA8LE CCNSEQUENCES h l o I : 1 l While Unit 2 was in normal operation and Unit 3 was in refuel, the pilot cell voltage l g ; readings were not taken for the Unit 2 or Unit 3 DC batteries as required by Technical l

     ,9,g,          g Specification 4.9.B.l. The significance was minimal since the daily and weekly surveil- l
     ,9,,,          , lances revealed that the batteries were operable. There was no effect to public health                                                                            ;
     , g            g or safety. Previous occurrences:                                       R.O. 81-68/03L-0, 81-08/03L-0, Docket 50-249.                                              ,

10171 l I Io18i i I y a9 ao CC E cod su E COMPONENT CODE sus COE su E jol91 V 8 l E lC l@ @@ W@ l B l A l T lT lR lY l@ l Z l@ J @ 9 10 11 12 13 is 19 20

                                            .                                         stouSNTIAL                       OCCURRENCE            REPoMT                    REVis3ON LE R               EVENT YEAR                              REPORT No.                           CQoS                TYPE                       No.
                    @ ,asg/Ro u

I8l21 [--J l Ol il 01 lA I 013 l lt l L-j ud 21 22 23 24 24 27 28 29 30 21 32

                   ?J N "Ac M J                        cf#&Tr           5".E%ao"                  NouRs          ^ME"TT!"o' PoTo'i0.. **s!"A?ET                        .ATu?!c"ElER gyg 22         24 lsZ lg a                 lseZl@

l 0 l 0 l 0 @l si 4o l 0 l _NlQ 41 lNl@ lLl@ 42 as l Gl 1l 8 l 547l@ 44 CAuss OESCRIPTION AND CCRRECTIVE ACTIONS @ litol LThecausewasattributedtooperatorerror. Voltmeter was damaged. Operator did not re- [

     , , , , , gplace it and consequently did not take the pilot cell voltage readings. Immediate action l lwas to review the previous daily and weekly surveillances to determine if the batteries                                                                            ;

g were operable. Subsequent readings verified batteries were operable. Event will be re- g viewed with Shift Supervisors to prevent recurrence. , Ii lo1 I I '7 & 9 80

                                            % POWER                       oTNER STAT 1Js             OtsCOV RY                            OlscoVERY DESCRIPTloN I i I s. 1 I E l@ l 0l 9 l 8i2l@lis
   .2                           ,gg, N/A 44 l    []dhl
                                                                                                       =         =

Surveillance Test

                                                                                                                                                                                   .0 l

_E ,MEuA.E ~tocAT,oN cP REmA.E @ ouN1o, Acm., @ l lliisi I zl 7 8 9 LzJ@l 10 11 N/A 44 l

                                                                                                            =

N/A 90 l ( PERSONNEL EXPOSURE: NumeER TYPE oEsCRIPT1oM N/A l ,l1 l 7 l l 0 l 0 l 0 l@l Z l@l " l' * ' ,ERsoNNEl.'mu% cs

                        ~uu.ER lt jall0l0l0l@l oEsCRiPTioN@ N/A l

7 4 9 11 12 80 , I i I 9 I l Z l@l

                   'sfE ' "e"R PT oT' "" @

N/A 820430oM o l !7 4 9 to 60 assyt DE CRIPT1oM

• I:lolIzU@l 7 3 3 10 m I 68 69

                                                                                                                                                         !!IIlll11fIl11

80. ;

NAME OF PREP ARER PHONE: i

DEVIATION REPORT Commonwealth E_. son DvR so. 12 - 2 81 16 STA UNIT YEAR NO. PART 1l TITLE OF DEVIATION Failure to Take Unit 2 and 3 OCCURRED Battery Pilot Cell Voltages 3/25/82 1200 OATE T!vE SYSTEM AFFECTED 8300 EVENT PLANT STgT S unAT TIME OF 2500 (2) 800 (2) }ESTIN DC Systems MODE 7 7 qip . PwR(Mari g rp . LoADtu E) n en y3 DESCRIPTICN OF EVENT 2 x hu 3 24/48 VDC, 125 VDC or 250 VDC batteries as required by Tech. Spec. Surveillance Requirement 4.9.B.1. 10 CFR50.72 NRC RED P'40NE O E NOTIFICATION MADE YES NO E QU I PMEN T F A I LU R E OVES G NO .oR- aEcuEST ~o. RESPoNSistE SuPERv>Soa nichael wright 0,,, mun P ART 2 l OPERATING ENGINEER'S C044ENTS A notation was made on the surveillance procedure stating that the fluke voltmeter used for voltage reading was broken. This event will be reviewed with the shift supervisors to prevent recurrence. O EVENT OF PUBL IC INTEREST O 24. Hour NRC NoTiriCATioN REo D TELEPH Tom Tongue (courtesy) 3/25/82 1300 O TECH. SPEC. VIOLATION REGION lil DATE TIME O Nos aEeoRTAeLE OCCURRENCE ,,t,c ,,,,L,co,y 0 '4 oAv aEPoaTABLE/T.S. REGION iii DATE TiuE O 30 DAY REP O R T A BLE / T. . CECO CORPORATE NOTIFICATION MADE C ANNUAL /SPECL REPORT REQ'O IF ABOVE NOTIFICATION IS PER ICCFR21 A.I.R. e

                                                         ] $. DAY WRI TTEN REPORT REQ'D PER 10CFR21 L.E.R.     ,   82-10/03L-0 7 t pg            F. A. Palmer                                3/25/82         1457 CECC CORPORATE OFFICER                       DATE          TIME PRELIMINARY REPORT                      Michael Wright                                         3/25/82 COMPLETED AND REVIE*ED GFER ATING ENGINE ER                       _
                                                                                                             ,0 ATE ,,//

IN VESTI GATED REPORT 4 RESOLUTION g ACCEPTED BY STATION REVIE* sy b p% % - > _ . _ _ . J // n / g.2 - . 4 4.2LPk // 4ESOLUTION APPROVED AND AUTHOR I ZED FOR DI STR I BUTION p - f g [[~ y g 1 64 51's IFo*W 15 52 11 10 41}}