ML20042G743

LER 90-004-00:on 900411,power Range Calorimetric Channel Calibr Not Performed.Caused by Cognitive Personnel Error. Unit Shift Supervisor Counseled Re Importance of Complying W/Tech Specs.W/900511 Ltr

ML20042G743
Person / Time
Site:	Vogtle
Issue date:	05/11/1990
From:	Hairston W, Odom R GEORGIA POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
ELV-01612, ELV-1612, LER-90-004-02, LER-90-4-2, NUDOCS 9005160032
Download: ML20042G743 (4)

Text

E _1

, . iu Georg a Po6er Comtian,-

~.e 333 P.eJmont Avenuc

• A!!:nta. Grorg4 30308 I

Te j

, 'ephone 104 $20 3195 i

Ma t-ng Address.

40 inverness Center Pa kway y Pod Oftce 00: 1295 B.rmangham, Alabama 352C1 Telephone 205 868 55E1 s May 11, 1990 usawn wome n  ;

W. G. Hairston, HI Senio* V:ce President Neea opera et ELV-01612 0373-Docket No. 50-425 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk .

Washington, D.C. 20555 l Gentlemen:

V0GTLE ELECTRIC GENERATING PLANT-LICENSEE EVENT REPORT PERSONNEL ERROR LEADS TO MISSED CALORIMETRIC CHANNEL CAllBRATION In accordance with 10 CFR 50.73, Georgia Power Company hereby submits the '

enclosed report related to an event which occurred on April 11, 1990.

Sincerely, al l}.// Y . "

W. G. Hairston, III WGH,III/HWM/llh

Enclosure:

LER 50-425/1990-004 xc: Georaia Power Comoany Mr. C. K. McCoy Mr. G. Bockhold, Jr.

Mr. R. M. Odom Mr. P. D. Rushton NORMS U.S. Nuclear Reaulatory Commission Mr. S. D. Ebneter, Regional Administrator Mr. T. A. Reed, Licensing Project Manager, NRR Mr. R. F. Aiello, Senior Resident Inspector, Vogtle

Q?E'Ifji$ff $O0 ?T'

-tc

'I assic perm M6 U 8 NUCLE AR t!VLf. TORY COhmstWioes

!.PPhovio otAs peo #1964108 LICENSEE EVENT REPORT (LER) * *a's ' '8*

f eCILITY N4884 til oOCKE T 8tutAtt h (2) Paqug (31 j V0GTLE ELECTRIC GENERATING PLANT - UNIT 2 o ;s lo io ;ol4 i 2;5 i lod 0 l3 l Ti1LE les l

l PERSONNEL ERROR LE4DS TO MISSED-CALORIMETRIC CHANNEL CALIBRATION

j. Ivt=, oAn <ii u . N o . . .., .IPo., oAn m oi,<l , ACvi 4 Nvolvio i.,

p voNi,4 oAv vtA. vtAn umt;;;*6 ==,y;; voNvM oAv vtao eAcniv. Avis oocnit Nv etais, I. ol5lolol0l l l L

44 1l 1 90 0l0l 4 0l5 %0 9l 0 0 l0 1l1 o isto !o t oi i i o,,,,,,,,, twas atPont is avouifno PunsvaNT to int atouinfutNTs os 10 cra I (Ca.c. eae e . e rra ,e". as! III:

l =' ai 1 a mi.i a mi.i .O n .nsnoi nii.i gno. 1 i 0,0 n . .in nii .0 mi.nu

.0 mi. uni

.0 ni.nin i

.0.n n:H, n.ru.i m mi.innoi

_ _ _ gnE gsg., ;,,ge, 20 406tsn1Heni

} SO 73i.i(2 H4 to 736 43 Hen:HAl J66A) l' 70 406i.lf1Hevi 6013te H2 Hal to 73iclitiivueHS1 a 406ieH1Hil 90 7 34.Hf MHO 60 73i.42 ital LICIN584 CONTACT FoA THIS Lip i126 NAME 'tL5 PHONE NUveta ARE A CoOE R. M. 000M, NUCLEAR SAFETY AND COMPLIANCE 4l0 4i 821 1 6i3 l210l 1 i

j. COMPLETE ONE LINI som B ACH CoMPoNINT f Attunt otsCalttD IN TMit Ripont ti3i cAust svsvtv covPoNINt *^l%' " jy",','N ' cAust svstav CovPoNENT *^lXC "jpa,','g 8 I I I i 1 I-1 I t 1 I I I I i l 1 l 1 l l l 1 l ! I l l SUPPLlut NT AL stEPoAT E XPEC1to 414- MONTH DAY vtAR 5 SV oN

[ -) vis o, ... .-... < A,uCno sv .,ss,0N cA w

<..,,,AC,u..,,,,.,.......-,,,,,,,,-,.~,,.-,,.--,,n.

3o l l l On April 11, 1990, the Unit Shift Supervisor (USS) for the oncoming night shift was reviewing the Unit Shift Supervisor's Log. At 1615 CDT, he noticed that the Power Range Calorimetric Channel Calibration had not been performed since 1045 CDT on April 10, 1990. Technical Specification (TS) 4.3.1.1, Table 4.3-1, Item 2a, requires that this calibration be performed daily for the power range neutron flux high setpoint. The USS on duty was advised and personnel bcgan to perform the necessary calibration. The surveillance interval plus the 25% grace period (24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> plus 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />) expired at 1645 CDT and the unit entered operation under TS 3.0.3. By 1736 CDT, the Calorimetric calibration was satisfactorily completed with no adjustments required, and the unit exited operation under TS 3.0.3.

The cause of this event was a cognitive personnel error by the USS on duty, resulting in a failure to comply with Procedure 14000-C, " Operations Shif t and Daily Surveillance Logs." The USS was counseled regarding the importance of compliance with TS requirements.

.**,, h' ~ '" __

g,, A u.1UCo u .. m A, ,

' ~

n:rces u om LICENSEE EVENT REPORT (LER) llb^., o';'"eg,'etM'?/s?,,'t*Mg ,",%,17,"

TEXT CONTINUATlON f,7.'.",l'.%".^%TlMf'.%!'.IO,'!.7,jl,"!

. "MA**

4 OutA,'..%2?"#.?aa'.,'WAgnese0 07 MApsAGEMENT Atep SUDGET Toes, DC 3m FACILIT,18AME til DoCRET feURSEA (28 gga ,$LASt. 461 rA48 IS L viaa b'a.', ' ll'JJ.?:

( VEGP - UNIT 2 o is Io lo lo l4 l 2l5 9l 0 -

0 l0l4 -

0l0 0l2 or 0l3 TGMT ## mese ausse 4 segused, ser emfeener AMC Aurun Mt11M i

A. REQUIREMENT FOR REPORT L This report is required per 10CFR50.73 (a)(2)(1) because the unit deviated from the Technical Specification (TS) requirements for performing surveillances, and because the unit entered into operation under TS 3.0.3 conditions.

-B. UNIT STATUS AT TIME OF EVENT At the time of the event on April 11, 1990, Unit 2 was operating in Mode 1 at 100% rated thermal power. Other than that described herein, there was no inoperable equipment which contributed to the occurrence  :

of these events. l l C. DESCRIPTION OF EVENTS I l

On April 11, 1990, the Unit Shift Supervisor (USS) for the oncoming i night shift was reviewing the Unit Shift Supervisor's Log. At 1615 l

CDT,_ he noticed that the Power Range Calorimetric Channel Calibration had not been performed since 1045 CDT on April 10, 1990. Technical .

l Specification (TS) 4.3.1.1, Table 4.3-1, item 2a, requires that this l calibration be performed daily for the power range neutron flux high l setpoint. The USS on duty was advised and personnel-began to perform 1 the necessary calibration. The surveillance interval plus the 25%

grace period (24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> plus 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />) expired at 1645 CDT, prior to completing the calibration, and the unit entered operation under TS )

3.0.3. By 1736 COT, the Calorimetric calibration was satisfactorily I completed with no adjustments required, and the unit exited operation I under TS 3.0.3.

D. CAUSE OF EVENT The cause of this event is a cognitive personnel error by the USS on I duty. The USS failed to comply with Procetture 14000-C, " Operations Shift and Daily Surveillance Logs." A problem with a power inverter diverted the attention of the USS during the time that the calibration is normally performed and led to the calibration being overlooked.

There were no unusual characteristics of the work location which  :

contributed to the occurrence of this event.  !

l

)

ICC Form 3esA (6496

Fones sesA u.s. LUCLEA;. is1ULATony coadasseseose 4' trpl #ES 4/3042 l

LICENSEE EVENT REPORT (LER) EM'?,Au"8'MQ!,&"'/,,%*f'J* ,"0?,.I"1

, TEXT CONTINUATION $"".'."4'.%'.^*nti'J"f'aTcM/jf u"'"k*NN

~

"'JU.anTNA",.'!.".ai;?"<n.'"A ^afic!

07 esANA0! MENT AND SUDGtt,mAsMeesGT00s.DC M.

FACILITY hAest H6 DocEtt IsutSSR (2) LI A IsWReBG A 161 poet (31 l "^a " 01'. fJf.?:

i

! VEGP - UNIT 2 o ls lo lo lo l4 l 2l5 9l0 -

0l0l 4 -

40 0l3 or 0l3 fate-. . - =cwamami l.

L E. ANALYSIS OF EVENT ,

l l l

The Calorimetric calibration performed on April 11, 1990, demonstrated I the indicators to be operating satisfactorily with no adjustment I necessary. Additionally, there were no other indications that neutron flux was outside of the normal operating range. Based on these considerations, this event had no adverse impact on plant safety or the I

health and safety of the public.

I l I F. CORRECTIVE ACTIONS

1. The USS on duty was counseled regarding the importance of l compliance with TS requirements.

l l 2. A copy of this LER will be placed in the Operations Reading Book for reading by licensed operators.

G. ADDITIONAL INFORMATION I Failed Components: l 1.

None

2. Previous Similar Events:

LER 50-424/1987-080, dated 2/17/89.

l LER 50-424/1987-077, dated 10/26/88.

I LER 50-424/1987-046, dated 8/6/87.-  ;

Although these LER's dealt with missed surveillances due to l personnel error, the corrective actions were mostly directed toward Chemistry Department personnel, rather than the Operations.

Department personnel responsible for this April 11, 1990, event.

l l 3. Energy Industry Identification System Code:

l l

Reactor Core - AC I

l l

1 I

ettc 7enn assA toasi