ML080290388

Unit 2 FW Flow Indication as a Result of 1996 Amag Cal Test

ML080290388
Person / Time
Site:	Byron
Issue date:	02/24/2004
From:	- No Known Affiliation
To:	NRC/RGN-II
References
FOIA/PA-2008-0046 CR 202982
Download: ML080290388 (3)

Text

DRE CR

SUMMARY

REPORT F 02/24/04, Page.58 of 1:8 CR; 2029820 DiScDate: 02/20/2004 Event *Date:

H0OI2004 How Discovered:

2 Unit:

02

SUBJECT:

IUnit2FWFiowIndication as~a ResUltof.1996 AMAG CaI

'TeS[:

SytemD.

3 Le-vel:F4-Clalss: ED 7 ORIGiNATOR SECTION1 CRINo: 202982.

Identie by-.(Name):.

JOSEPH'SAREDA Condition Descriptiohn Due to recen t testingperforrred at yrc.i: (dcum'ented in Condition Reports 200745 and 202040) Jeedwater findication thro'uh the use 01 ultrasonic;technoo!gy using Crossfiowt AMAG.has bdeen' broug)ht,ntc:

question. In 1996. Advanced Melsurement andgAnalysis Group (AMAG) was contracted to perform a calibration lest otf the Unit 2 feedwater flow transmitters. The data gathered during the calibration test was performed with~temporarity installed equipment that was removed when tne test was' completed. As aresult of the data that was collected, it was determined' th~at thein plani venturi flow Ioops were indicating higher flow than' actu'al flow. :As a resultsetpint change 02-98-1107 was issued. torescale:

thie feedwater flow tranismitter~s-,supported by calcul'ation DRE96-0199. 'See EC 347441 orfurther details.

-total indicated feedwbateirflow'(alI three o)by.1.26% from tl*i' p'reious scaling sepoint.alone The recent testing Besults fro m

B*'rn.

call into question th*,e dat th;at'was gath'ered,i~n1996,that was used *c promthis rescaling...

How discovered:

During discussions wit h-Corporate regarding thIeesults,ofthe recent tracer te'sing at Byron:

lmmediate actions taken:

Initiated'evaluation Ito adodress actions., (, EC 34744 1 Nameý 56rganiz"ation of supervisor personally notifie'dto pertorm Supervisory' Review:

Wha acivtie, pocsse, o poceduresd were involIved?,

Why did 'theý rcondit~ion.ýhappen?,ý

-What aje the consequences?

Were any procedvural requirements impacted?

SCREENING SECTION Name of Supervisory Reviewer: C. Wiegand Provide a clear statement of ihe,Problem and Consequence,,ifnecessary:

Theproblem ideniified in this condition report is a concern that the calibraiion process usedothe Dresden Unit 2 Feedwaler flow venturies

'may be. inccurate. It must b *noted iha*tihis issue arose from observed indicatins atkByron arid Bra-idwood but tlhere eare many moreýnuclea r:p lants using the AMAG system without similar indications. :Westinghouse issued issue.

Th-econsequeirnce.of the'is'sue is thatla potential exists thatact 6al porwer isoactu&ally higher than'iicated orcalculated'power resultinginar overp6weryevent..

However, as detailed-below in thea6dditio0nal commrents'section, there is; reasonable assurance based on pIantindidations that the iunit is'no' overpowered "in -actuality, it is sbelieved at this time that the phenomena.

affecting Byron and Braidwood were not present during the :1996 AMAG venturi calibration and the current venturi calibration remains accurate and conservative., Please see EC 347441-formore information.

Rec6mme'nde'd Signilficance Level 'and Ctass (p6rovide a basis for Level 3 anc

,aboVe) RcmedaSgiiac ee of14 and a Cl Iass of 0.ý Identify~additional actions taken or required to be taken(For actions not already" cmpleted include Action description., Assignee,ý aind, proposed I due date):

Anevaluation was, initiated tod etermine recommendations for immneiate anc long term actions. This eiyalUatin is doc'umented i-i EC 347441.

IdentiffyErExtent of condition issues that re*qui mediat 6actiohs:'

There areno extent'of condition issues that requireimmediate action.

The calibration test using the AMAG.Crossflow systefm-was olhy pefoirmed on Unit 2; Sýuggesied intien'mand log-term corrective actions:

Interim,'and long'terma~ctions are being addressed by Corporate with station inpu basd ds-cu se hI 6drEC 347441. Suggest'14-day ACIT ATI:.to,

,A833"0NEs R

eda.nto document current status and implementation 0o corpiorate ýr'e~commendaio for.AMAG impactonDed.

Additionriali C o*entis:

AB '*review of this iswsue has benf'p6erformed andeii do di'm-fent*'iineaEý in 4441.

Bas~ed.on: that review. it'is ccincuded~thait thereJ is no.'need for imnmectiats

DRE CR

SUMMARY

REPORT 02/24/04 Paqe, 59, 6ft118 CR:

202982 Disc Date.:

E0220i2004 Event Date:

02/20/2004 How Discovered:

H0 Unit:',2

SUBJECT:

jlurit.2FW Flow Indicationas a Result pf 1996s AMAG.CaiTest System:

2 Level:

Class: wE FD-1 ORIGINATOR SECTION were there fly adverse physical conditions?

Identify Who was'notiied?,

List of knowledgeable individuals:

R:Repeat or similar conditiior;V?

SCREENING: SECTION aclion~at this limre. However:.further re.sea~rch is needetd to,determin~e ii attpeo'.bl'em"nb hiave t:atbeemn

.dis f.ve'd hat 'Bron"appib.lyAthe,t.clibratoio tesf6aast periftrmed o.nUnitly2 i1996.eleIpa.rticular;)e`t',`ust1 boZude dee*m*-inedý what tshe; Aepr-'ote'lm 1 at Brn, t is tiadsigle AMA eqduip mON to re-blerd alowefede fow'tansmiiterhflowrun actweual.:reOie(tht is-o*mbpleted an Ittesc'm danb'b mtadelo determine. f thisproblem is, rppcceable toathe. Unit 2 c:ibriica eeert 199. l lsow mpantlo6e o

efrom the 6

enditiun

~*sca~*p

• selwoitnatone-thcrectlyhonen ofthet crrct, eatin aindud inves6tigation ino,wh Iy the AýMAýG e~qu'ipm'ent i'si-eading incorrectly.7tic:

station'.bufrLntly hias chosen not to use to Crossflowultrasonicflowh

,The. feedwater flow transm -i titers f6r Unjitr 2.were resr-aled in 1996 6based'onI tihe results of,a calibration test that was. perlformedbyAMAG:.ý the

ýrescaiingofthe Ii ndividual feedwate flow t tnsItIters, reduced the total indicatedfeedwateerIflow.(a sidcaingedtpoinate fow.

Tahe three loops) by. 126%

ý6from the previous

'saniepiitalne:.

recent~testiig~resuits.f~rom Byro-n call 'VIi~ttb "questi 6nthe daia.ihat was gathered in 1996 thlat was.usedito performn!*lliis

rescaintg:

the bver'-all effo'rt~i'scdur're'n'tly b6eing dir'ecidted y C'rpoiate based on 'the-

.res'u~ls f ý-th*e~by'ro'n testing., Th1. 's -t 1 a1tion I Will be dosely involvedl with ttiý r-vi~e'wvto "det-e'r'mine~i'f.additi-onal 6cti6ns are require"d., If itis, 6

inseaiively'a.ssumedtijfatfeedwailerflbwrate indicationf is1.26% l0wei t{h'an~ctuar, flow.Corie,-The~rm~al Pw should belimited toapproximaqiel 987%.

VWhhil6ecurient power, levelis: beloW this ivalue, it Is estirmated

tha'tthislimit.ýcoulddbe rbachLedaseary-'asMay. depending on weather anc%

cordener ondtios.This Is :being usedl to.establish the time frame tc.

cbmpielte this. effort.,

NameofS R9 9contactedfor,Sfift PManaqgeqmqe.'Mview: :Palanyk, Shit anage men i.Comments' Section.

Shift.Manager Reviewer (Nýame):."ý., PlanykO Operabile? (

mes/No)Basis':.

Yes.Engineering evaluationpto dated,ndiupe o

therei& notan app*ar.ent di'crviewýfainicy ngstw e

'actualas disndics-ate*dSfW, fr

.io dand *aulated Core eWrmI:al PC i.

t~eoiabe?(es ~

I Bais N. ~alibratioii inaccduraies hiai ýnot bee§6

discoiieredio date tht could haý6leid't 16'L tii Un

-'erating above Lýiehsieb: Limitor res'ulting i ononrvativeAPRM Trip' settings.

Addiionl Cinriens:

blloupealutio pe reommnded ATllnýSupervisof secdti~n. Add to ATIj t fre iw fdi ngsidýdjsI ciss-wt~D Shfff~

discepanies nPWflowcalibration.

.CPC/MCommenl~ec'tion.";""

02/24/04 DRE CR

SUMMARY

TREPORT a 22 i

Pa0e 66 of il:;1'8 CR:

2'602982 Di&DWte,

.021=202004. EvHentDate:

01/4How Discovered:

N Unit:

02-]

Leyel:

SUBJECT.: IUnit?'FW Flow lndication!as Result of 19966,MAG C;I Test System:3 class:

sCREENiNG SECTION CAPCbR'eviewer':(N'ame) :FranriP. Polak,. EDCAPCo, GR OQwed to:, A835&"C',P Screen nng;C-:C, mrmi'iO~:

ACI toIRedaa-Pla:En*gi'erinig*. ld~ocument'currenSt aus and

.iript0,aem endtmai~or of i#Q§ the

.r!ietrec0meisedathn forMAG Dpesd*; AMG impafate.aRZo.

Rp~eriethebn stalus ws, ith p..Mn i,

O 9dr vtuoaSh p~na.erri

.ntt 6

. l.nt impoacto-bilY and breartbilil96t any s

ae~

di.rep n

al ies1*i FWff16WijalIbration.

lnt'6appr topr ate.

io.a ~prpiae iertGr oou6p:A833

,rONESTBr Due Dat:010 8104/

CA t,,oReda',Plant Engineering. todocijrnent:thedfinial resolutioni pin 6or 'oratel ecommenridationsfor the,Dresden AMAGirnpvadf Gieheate ý`CR l Operations Shift Managementbl toevaluate pininat:perabltityano reotblt irqie e LS-AA-1 25.. Inilliate additional abtons" `

Aert Group.:A83ONýESTB

-Du~ Date: 0 6/29/104ý

.TREND. CODES' Trd 1 Description

-Trd 2 Description, Trd-3 besc!iptibn Proc,. rg Rank:

FEtNG tUDM~tL-

-tR, T ECHNiCAL kkOTIjNIFEbOO VN b E*NGINEERINIG" PWP PEOPLE&WORK 'PRACTI.CES VWPWE USE;OFWORK:STANDARDS 4FI FOLLOWEDINCORRECTUi" CIC01; VNC, P

CR.SIGN OFF Oii iatt.info S~upervisor;Ihfo=

,Ext Det :orik Date ApproVed BV':,,,,

Da.

.REDAJOSEPHS

)8363 02/2004:

WIEGAND CHRISTOPFHfE-RI*"i

'LI W0t/"-

Shift Manaqer Info*

Sreheeinq lnf6 Approved BV

• Date

?,Approved'-Biv, Date.

PALý;ANYK'TJERENCE S; M0/20104ý p~LX7AKc 023/,

MRC.CtONSID E.RATIONS (ftR. A TTRIBUT E-S-)

Regulatory Impact Humnn Performance, OPEX TS OPERABLE.

ETCOKRST:E REPORTABLE:,

DEPTGRE, RESETS NROE SDP:*

DEPT/CREW RESET:

PLANT*CLOCK RESET:

MRC coc uer with S inMfit "ant;Level nid I

svetigatio*n CIasiO es N

MRC-to review ACE resul~ts?

Yes FNo7 MkC Commýents:

Brinig Back,to MRC? Yes!No