ML17251A353

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Rev 6 to A-503.1, Emergency & Abnormal Operating Procedures Users Guide.
ML17251A353
Person / Time
Site: Ginna Constellation icon.png
Issue date: 10/31/1988
From:
ROCHESTER GAS & ELECTRIC CORP.
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ML17251A351 List:
References
A-503.1, NUDOCS 8811180197
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ROCHESTER GASANDELECTRICCORPORATION GINNASTATIONCONTROLLED COPYNUMBERTIM::-PROCEDURE NO.A-503.1REV.NO.EMERGENCY ANDABNORMALOPERATING PROCEDURES USERSGUIDE,TECHNICAL REVIEWPORCREVIEWDATEQUALITYASSURANCE PLANTSUPERINTENDENT EFFECTIVE DATEQANON-QACATEGORY1.0REVIEWEDBY:THISPROCEDURE CONTAINS19PAGES8811180197 881031PDRADOCK05000244PPDC

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A-503.1:1A-503.1EMERGENCY ANDABNORMALPROCEDURES USERSGU1DEINTRODUCTION PURPOSE-togiveguidanceintheuseofEmergency Operating Procedures (EOPs)andAbnormalProcedures (APs)andtoclarifythelogicusedintheseprocedures.

SCOPEOFAPPLICABILITY

-thisprocedure isapplicable toallEOPsandAPs.REFERENCES

-applicable tothisprocedure are;WOG-ERG,Revision1,LPVersion,,Executive VolumeUsersGuide.GinnaStationEOP/APWritersGuide,A-502.1.GinnaStationEOP/APSeries.DEFINITIONS Emergency Operating Procedure (EOP)-Aprocedure whichprovidesactionsnecessary toreturntheplanttoasafe,stablecondition following atransient/acci-dentwhichhascausedplantparameters tochallenge reactorprotection systemsetpoints,engineered safeguards systemsetpoints,challenge theabilitytocoolthereactorcoreora.radiation releaseboundary.

AbnormalOperating Procedure (AP)-APsgoverntheplantoperations duringabnormalconditions andspecifyoperatoractionsthatwillpreventthecondition fromdegrading intoanemergency.

CriticalSafetyFunction(CSF)-CSFsarethosefunctions necessary toprotectthefuel/cladding, RCSpressureboundaryandthecontainment vesselfromdegradation.

Aprioritized listofthesesixfunctions isasfollows:Maintenance ofSubcriticality Maintenance ofCoreCoolingMaintenance ofHeatSinkMaintenance ofRCSIntegrity

A-503.1:21.4.3.51.4.3.61.5Maintenance ofContainment Integrity ControlofReactorCoolantInventory TEXTREVISIONS

-areidentified byachangebar.Thechangebarislocatedintherighthandmargintoindicatechangestothetextofthatline.Thechangebarforthecurrentrevisionwillnotbecarriedforwardtothenextrevision.

2.0 EOPAPSectionOranization

-inordertofacilitate rapidlocationofspecificsectionsandsubsections oftheEOP/AP,thecontrolroomcopyisarrangedperFIGURE3asfollows:2.12'..COVERSHEET-whichisusedforadministrative purposesanddoesnotprovideanyactive.functionintheEOP/APtobeused.TheCoverSheetoftheControlRoomcopyisthefirstpageseeninthebinder.PURPOSEandENTRYCONDITIONS SYMPTOMSPAGE-intheControlRoomcopyisimmediately following thecoversheet.2.2~1~~2.2.22'2.3.12.3.22'.3APurposeStatement whichspecifically describes theintentoftheprocedure.

Entryconditions and/orSymptomssectionswhichspecifytheconditions, transitions and/orsymptomswhichdictateordirectentryintotheprocedure.

Thesymptomsusedshouldbeuniquetotheprocedure.

OPERATORACTIONSTEPPAGES-whichmaybesubdivided intoImmediate OperatorActionpages,followedbysubsequent operatoractionpages.Operatoractionsteppagesmaycontain;CAUTIONSTATEMENTS

-whichprovideinformation abouthazardstopersonnel orequipment andadviceonactionsortransitions whichmaybecomenecessary depending onchangesinplantconditions.

NOTESTATEMENTS

-whichprovideadministrative oradvisoryinformation whichsupportsoperatoractions.OPERATORACTIONSTEPS-presented inatwocolumnformat,directtheoperatorthroughspecificstepbysteptasks,givetheexpectedresultsfromthosetasksandprovidecontingency actionstobetakenshouldanexpectedtaskmethodnotbeavailable oranexpectedresultnotbeobtained.

0 A-503.1:3 2.3.3.1~~~2.3.3.2Immediate OperatorActions-actionswhichtheoperatorshouldbeabletoperformbeforeopeningandreadinghisemergency procedures.

Ingeneral,immediate actionsarelimitedtotheverification ofautomatic protection featuresoftheplant.Althoughtheimmediate actionsshouldbememorized bytheoperator, theyneednotbememorized verbatim.

Theoperatorshouldknowthemwellenoughtocompletetheintentofeachstep,whichistoverifythattheautomatic actionshaveoccurred.

Theorderinwhichtheyshouldbeperformed shouldalsobeconsistent withthestepsequencerequirements.

Subsequent OperatorActions-actionsnotdefinedasimmediate.

22'.3.4AnAction/Expected Responsecolumncontainstheprimaryoperatoractionandtheexpectedresponseorresultsofthoseactions.ExpectedresponseorresultsoftheoperatoractiontasksaregiveninCAPITALLETTERS,separated fromtheactionbyadash(-)~TheResponseNotObtained(RNO)columnpresentscontingency actionstobetakenwhenanactionintheleft.-hand columncannotbeperformed ordoesnotsatisfytheexpectedresponsecondition.

RNOcolumnactionsarespecified forstepsandsubstepsforwhichusefulalternatives areavailable.

Contingency actionsmayincludedirections tooverrideautomatic

controls, tomanuallyorlocallyinitiatenormallyautomatic actions,ortousealternative systems,evaluations, orprocedures.

2.42.4.12.4.2OTHEREOP/APCONTENTS-mayinclude:AUTOMATIC ACTIONPAGE-whichprovidesinformation onsystemsorcomponents whichshouldactivateorrealignautomatically, withoutoperatorintervention.

FOLDOUTPAGE-whichprovidesasummaryofinformation andconditions tobemonitored throughout theEOP/AP.Thispageprovidesactionsandtransitions basedonplantconditions whichmayoccuroutsidethenormalflowoftheEOP/AP.2.4.3FIGURES-maybedrawings, graphsordiagramswhichwillprovideadditional information totheoperator.

A-503.1:4 2.4.4~~3.0ATTACHMENT PAGES-whichmaybeusedtoprovideadditional information totheoperator.

Theyprovideinformation concerning aparticular steporevolution addressed intheprocedure.

'heinformation presented isofimportance totheactionordecisionwherereferenced, butisofalengthorformatwhichprecludes incorporation intotheprocedure step.INSTRUCTIONS NOTE:Seeattachment 1,ExampleofEOPUse,whichdescribes theprocessofworkingthroughadualcolumnformatted EOPandimplements theinstructions described herein.NOTERefertoA-502.1EOP/APWriterGuide(Reference 1.3.2)foractualformatandcontentrequirements.

3.1ENTRYINTOEOPAP-entryintoanEOP/APnormallybeginsatthePURPOSEANDENTRYCONDITIONS/SYMPTOMS pageandsequentially progresses throughtheOperatorActionpagesunlessspecifically directedoutsidethenormaloperating orabnormalprocedure, byaFoldoutpageconcernorbyaCSFSTcondition.

DirectentryintotheEOPsetisnormallythroughE-O,butproce-dureFR-S.lorECA-O.Omaybeentereddirectlyiftheentryconditions areobserved.

3.2PURPOSEandENTRYCONDITIONS SYMPTOMSPAGE3.2.13.2.2Verifythattheprocedure purposesatisfies thespecificgoaldesired.Verifythatthestatedentryconditions areconsistent withcurrentplantconditions orthatthecorrecttransitions havebeenmade.3.2.33.3Verifythatcurrentplantsymptomsmeetthesymptomsassociated withtheprocedure inhand.OPERATORACTIONSTEPPAGES3.3.13.3.1.13~3~1~2NOTESandCAUTIONSObserveallapplicable NOTESandCAUTIONSpriortoperforming anystep.NOTESandCAUTIONSimmediately proceedtheapplicable step(s)towhichtheyapply.Thoseapplicable totheentireprocedure areshownpriortoanyOperatorActionstep.

~~00 A-503.1:5 3.3'.3~~~Cautionsaredifferentiated fromnotesbyinclusion ofasterisks acrosstheEOPPage(SeeReference 1.3.2).3.3.2DUALCOLUMNFORMATUSAGE3.3~2~13'PerformallImmediate actionspriortoperforming Subsequent actionsteps.Performactionsintheleft-hand columnfirst.3.33.3.2.43.3.2.5Movetothenextstepandperformactionsintheleft-hand columniftheactionsinthepreviousleft-handcolumnwereperformed successfully.

Performactionsintheright-hand columnonlyiftheactionperformed intheleft-hand columndoesnotachievetheexpectedresponseortheactionintheleft-hand columncannotbeperformed.

Movetothenextsteporsubstepandperformactionsintheleft-hand columniftheactionsinthepreviousright-hand columnareperformed successfully oriftheactionsinthepreviousright-hand columnfailtobringabouttherequiredresponseornoentryexistsintheright-hand columnunlessspecifically directednottocontinue.

3.3.2.63~3~2~7Performallnumerically oralphabetically identified stepsinsequential order.Thosesubstepsidentified bybullets(o)maybeperformed inanyorderorpreference.

Beginning anactionsteporsubstepandbeingassuredthatitisprogressing successfully issufficient actiontoproceedtoasubsequent stepunless;3.3.2.7.1 ANOTEstatesotherwise or;3.33.3.2.7.3 3.3'3.3.3'~~~Thestepspecifies otherwise or;Theoperatordeemsithazardous topersonnel orequipment toproceed.TEXTCONTINUITY

-thetextofoperatoractionsteps;withapplicable

substeps, cautions, notes;willnormallybewhollycontained onthesamepage.Wherephysicalconstraints precludethisthefollowing guidelines areused:Cautionsand/ornotesareplacedontheimmediately preceding page.

~r!l,e0 A-503F1:63.3~~~3.3.3.2.1 3.3.3.2.2 3.3.43.3.F13.3.4'Ifastepiscontinued ontoanotherpage,then:Theinitialpageisannotated atthebottomoftheactionstepfieldportionofthepagetoindicatethatthestepiscontinued onthenextpage.(ie,THISSTEPCONTINUED ONFOLLOWING PAGE)Thefollowerpagewillhavetheinitialactionstepheadingrepeatedwithastatement toindicatethatthestepisbeingcontinued fromapreviouspage.example:Establish letdown-THISSTEPCONTINUED FROMPREVIOUSPAGEUSEOFLOGECTERMSANDCONDITIONAL STATEMENTS:

ThewordANDisplacedbetweenadescription ofconditions fornomorethancombination ofthreeconditions.

Alistformatshallbeusedforfourormoreconditions.

Thereisanimpliedandcondition betweeneachlistitemifnologictermisspecified ifsubstepsareproceeded withbullets(o).ThewordORisusedbetweenalternative conditions.

UseofthewordORimpliestheinclusive sense.Theexclusive senseofthewordORisdenotedbyusingtheform;eitherAORBbutnotboth.3.3.4'.13.3.4.3Whentheinclusive orisusedforasetofconditions, thesatisfaction ofanyonecondition allowsprogres-siontothenextsteporsubstep.Whentwoormoreactionsareseparated byanorcondition, onlyoneactionneedstobesuccessfully takentoallowprogression tothenextsteporsubstep.Actionstepscontingent uponcertainconditions orcombinations ofconditions, beginwiththelogictermsIForWHENfollowedbyadescription ofthecondition(s),

acomma,thelogictermTHENandtheactiontobetaken.IFisusedforunexpected orpossibleconditions, THENisonlyusedinconditional statements andWHENisusedforexpectedorprobableconditions.

3.3.4'ThelogictermIFNOTistheoperatormustrespondpossibleconditions.

Theoperatorresponsetotheconditions.

limitedtocasesinwhichtothesecondofanytwotermIFisusedtospecifyfirstofanytwopossible3~~USEOFREFERENCE TERMS I4 A-503.1:7 ThewordsGOTOfollowedbyonlyastepnumberdirectstransition toasubsequent stepwithintheprocedure beingused.ThewordsRETURNTOfollowedbyonlyastepnumberdirectstransition toapreviousstepwithintheprocedure beingused.ThewordsGOTOfollowedbyaprocedure designator, andtitleand/orastepnumberdirectatransition tothespecified EOP/AP.Ifnostepnumberisspecified, thenthetransition istothebeginning ofthespecified procedure.

Example:GOTOES-0.1,REACTORTRIPRESPONSE, Step20.ThewordsREFERTOfollowedbyaprocedure designator andtitleareusedtodenoteaprocedure whichmayprovidenecessary orusefulinformation duringtheexecution ofanEOP/AP.Ingeneral,thoseprocedures referenced coverlowprobability occurrences, orplantevaluations withtheirownprocedures whoseinclusion intheEOP/APwouldcauseexcessive complication ofandreducedeffectiveness oftheEOP/AP.Referencing anotherprocedure doesnotconstitute leavingtheEOP/APineffect.Example:REFERTOER-AFW.l, ALTERNATE WATERSUPPLYTOAFWPUMPS.Procedures enteredforsupplemental guidanceorfromCSFSTdirection maycontainaRETURNTOstatement.

Aprocedure withmultipleentryconditions maystateRETURNTOPROCEDURE ANDSTEPINEFFECT,thisdenotesareturntothelastpreviousEOPandstepinuse.ACTIONVERBSANDABBREVIATIONS USAGEOperatoractionstepsarenormallywritteninacommandformandbeginwithanactionverbwhichhasaprecisemeaning.RefertoA-502.1,WOP/APWritersGuide(Reference 1;3.2)forlisting.Certainabbreviations areusedthroughout theEOPsandAPstoimprovereadability.

RefertoA-502.1,EOP/APWritersGuideforproperabbreviations.

I FOLDOUTPAGESA-503.1'8 3.4.13.4.2Direction touseafoldoutpageisprovidedbyaNOTEwithintheprocedure, generally atthebeginning.

OnceitsuseisdirectedtheFoldoutpageistobemonitored throughout thetimetheEOPisinuse.OnesectionofeachfoldoutpageisaREDPATHSUMMARYwhichpromotesaperiodiccheckoftheCriticalSafetyFunctions.

UponmeetingoneormoreRedpathconditions, transition totheappropriate Functional Restoration procedure ismadeasdescribed insection3.6.3OthersectionsoftheFoldoutpagecontainplantconditions whichmayariseatanytimeduringtheexecution oftheprocedure oroutsideofthenormalflowoftheprocedure.

Thesesectionsprovideactionsorguidanceforoperations iftheseconditions occur.3.5USEOFCRITICALSAFETYFUNCTIONSTATUSTREESCSFST3.5~1~~3.5.2CSFSTsareenteredfromandmonitored inconjunction withtherecoveryactionsoftheotherEOPseriesprocedures.

FRprocedures areenteredfromtheCSFSTortheEOPsandareintendedtorestoreadegradedsafetyfunctiontosatisfied condition.

3'.33.5'3.5.5ACSFST,asshowninFigure1,isenteredontheleftsideofthepageasindicated bythearrow.Questions areaskedandansweredinturnwhichthendirecttheusertothenextquestion.

Whenallquestions areansweredinaparticular paththeuserwillhavereachedanendpointorterminus.

Eachfinalpathsegmentandeachterminuscircleiscodedbyasymbolscheme.Thecontrolroomcopyalsoutilizesacolorcode.Thesymbolsandcolorcodingusedaredescribed below.3.5.5.13.5.5.2Colorcode-GREEN,finalpathsegmentandterminuscircleareout-lined only:TheCSFissatisfied.

Nooperatoractionisrequired.

Colorcode-YELLOW,thefinalpathsegmentisaseriesofsoliddotsandtheterminuscircleisonethirdfilledin:TheCSFisoff-normal.

Operatoractionmaybetaken.

~i A-503.1:9 3'.5.3~~~3.5.5.43.5.6Colorcode-ORANGE,thefinalpathsegmentisabrokenline,theterminuscircleistwothirdsfilledin:TheCSFisunderseverechallenge.

Promptoperatoractionisrequired.

Colorcode-RED,thefinalpathsegmentisasolidline,theterminuscircleistotallyfilledin:TheCSFisunderextremechallenge.

Immediate operatoractionisrequired.

ForYellow,OrangeandRedpathsaprocedure designator willbeincludedtodirecttheoperatortothecorrectFunctionRestoration (FR)procedure.

Theseprocedures

.areintendedtoreturntheCSFtothesatisfied condition.

3.6PRIORITIZATION OFFUNCTIONRESTORATION PROCEDURES 3.6.13.6.2~~RedorOrangechallenges toaCriticalSafetyfunctiontakepriorityoverallE,ES,ERandECAprocedures exceptECA-O.O,LossofAllACPowerandtheimmediate actionstepsofE-O,ReactorTriporSafetyInjection.

ThesixCSFSTsareorderedinthecontrolroombookbythefollowing prioritylist.Thislistingestab-lishesthepriorityinwhichconditions aretobeaddressed inconjunction withthecolorcodepriorityasdescribed in3.6.3.3.6.2.13.6.2.23.6.2.33.6.2.43.6.2.53.6.2.63.6.3Subcriticality (S)CoreCooling(C)HeatSink(H)Integrity (P)Containment (Z)Inventory (I)OnceenteredtheCSFSTsshouldbemonitored inthepriorityorder.EachCSFSTisfollowedtoaterminusbasedonplantconditions atthattime.AnexampleofstatustreeuseisincludedasAttachment 2.Therulesofusebasedonthecolorcode/symbol systemareasfollows:3.6.3.1IfaREDpath/solid circleterminusisreached,anyprocedure ineffectotherthanthosenotedinstep3.6.1issuspended andtransition ismadetotheFRprocedure designated ontheCSFST.

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A-503.1:103.6.3.2~~~3.6.3.3Ifduringtheperformance o'fanFRprocedure fromaREDpathcondition ahigherpriorityREDpathisdetermined, theFRprocedure inuseissuspended andthehigherprioritycondition procedure isaddressed.

Oncethehigherpriorityprocedure iscomplete, thesuspended procedure forthelowerprioritycondition istobecompleted.

IfanORANGEpath/2/3filledcircleterminus, isreached,theremaining treesarechecked.IfnoREDpathexists,procedures ineffectotherthanthosenotedinstep3.6.1aresuspended andtheFRprocedure indicated forthehighestpriorityORANGEpathcondition identified isentered.3.6.3e43.6.3.5~~~3.6~3.6Ifduringtheperformance ofanORANGEterminusdirectedFRprocedure, aREDpathorhigherpriorityORANGEpathcondition arises,thentheoriginalORANGEpathFRissuspended andtheREDorhigherpriorityORANGEcondition isaddressed.

Oncethehigherprioritycondition procedure iscompleted, thesuspended procedure forthenextlowerprioritycondition istobecompleted.

WhileitisexpectedthattheactionsintheFRprocedure willcleartheREDandORANGEconditions beforealloperatoractionsarecompleted, theprocedure isperformed tothepointofaprocedure driventransition.

However,FR-S.1,ReactorRestart-/ATWSreceuires completion whenentered.AYELLOWpath/1/3filledcircleterminusisanindication ofanoff-normal condition.

Thesedonottakepriorityoverotherprocedures.

TheoperatorisallowedtodecideifanFRprocedure notedataYELLOWterminusistobeimplemented basedontheplantstatusandsystemtrendsat.thetimethecondition isnoted.3'CONTROLROOMPROCEDURE LAYOUTANDPLACEKEEPING 3.7.13.7'TheControlRoomcopyoftheEOP/APprocedures areorganized inindividual binderswithlayoutperFIGURE1.Thislayoutprovidesforeasyaccess,visibility of-.ATTACHMENTS andFOLDOUTPages,andensuresplacekeeping.

EachEOP/APbinderislocatedforeasyaccesswiththeControlRoom.Eachbinderisidentified byletterdesignation, number,andtitle.Example:E-O,ReactorTriporSafetyInjection

A-503.1:11 3.7.4Placekeeping intheresponsibility oftheEOPUser,normallytheControlRoomForeman.Inordertoensureproperplacekeeping, theEOPUsermaycheckofforannotatestepsbyusingpen/pencil markingstotheimmediate rightoftheActionSteporRNOperformed.

Alsoavailable tohim,arestick-onpadsornotepadswhichmaybeaffixedtopageswheretransition orloopingarenecessary.

InadditiontotheControlRoomControlled Copy,additional controlled hardcopiesoftheEOP/APsareavailable tothecontrolroomoperators inthecopy54fileswithinthecontrolroom.3.8GENERICISSUESOFCONCERN3~8~13.8.1.1Adversecontainment processparameter values:Ifeithercontainment pressureexceeds4psigorthecontainment radiation exceeds105R/hr,theoperatorshoulduseadversecontainment values.3.8.1.2~~~IfAdverseCNMTvaluesarebeingusedANDbothofthefollowing conditions aremet,THENtheoperatormayreverttouseofnormalcontainment values:3~8.1.2.13.8.1.2.2 3.8.23.8.2.1CNMTpressuredecreases belowthepressuresetpoint(4psig)and,IfCNMTradiation exceeded10R/hr,HealthPhysicsshouldassesstheintegrated radiation dose.Iftheintegrated radiation doseisverifiedtobelessthan106Radswithdoseratelessthan105R/hr,theoperatormayagainusenormalCNMTvalues.Technical Specification Violations duringEOPuse:TheEOPscontainactionswhichwillleadtoTechnical Specification violations inordertomaintainplantsafety.Althoughitisdesirable toremainwithinTechnical Specification limitsatalltimes,onemustkeepinmindthattheoverallobjective istoprotectthehealthandsafetyofthepublic.Thismayrequireviolating aparticular Technical Specification inresponsetoanaccident, althoughtheEOPprovidestrategythatallowsTechnical Specification limitstobeadheredtowheneverpossible.

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A-503.1:12ATTACHMENT 1EXAMPLEOFEOPUSETheactualprocessofworkingthroughadualcolumnformatted EOPisillustrated byusingE-2,FaultedSteamGenerator Isolation.

Itisassumedtheuserwasdirectedtothebeginning ofthisprocedure byanotherEOP.Thecoverpageprovidestheprocedure designator andtitletoassurethecorrectprocedure hasbeenobtained.

ThePURPOSEsectiontellstheuserthatthisprocedure iswrittentoidentifyandisolateafaultedSteamGenerator.

TheENTRYCONDITIONS/SYMP-TOMSsectionlistshouldshowtheprocedure fromwhichtransition hasbeenmade.Thefirstactionstepoftheprocedure ispreceeded bytwocautionstatements andonenotestatement.

Thecautionsaredistinguished byalineofasterisks aboveandbelowthemandthewordCAUTION.ThewordNOTEdistinguishes thenote'sexistence.

Bothtypesofentriesarealsomademorevisiblebytheuseoftheentirewidthofthepageincontrasttothedualcolumnformatoftheactionsteps.I\ThefirstcautiontellstheoperatorthatatleastoneS/Gmustbemaintained available forRCScooldown.

ThesecondcautiontellstheoperatorthatanyfaultedS/Gorsecondary breakwhichbecomesisolatedshouldremainisolatedduringsubsequent recoveryactionsunlessneededforRCScooldown.

Bothofthesecautionsareplacedatthispointduetotheisolation processbeguninthenextstep.Theoperatorispresumedtoknowthat"faulted" means-afailureofthesecondary pressureboundary, and"isolated" referstoclosureofsteamand/orfeedpaths.ThecautionshaveprovidedaspecificcriteriaofRCScooldownconcernsfornotisolating, orunisolating afaultedS/G.Inaddition, thesecondcautionremindstheoperatorthattheconcernsformaintaining afaultedS/Gisolatedcontinuetoexistafteratransition fromthisprocedure toanother.Thenoteremindstheoperatorthatstatustreemonitoring shouldbeoccurring.

Thefirstaction,Step1,isacheckformainsteamlineisolation onanyaffected(faulted)

S/G.Theexpectedcondition isthattheMSIVandbypassvalveonanyaffectedS/GisCLOSED.Iftheoperators determine theyareclosed,theyproceedtoStep2.IfanyvalveisnotclosedonanaffectedS/G,thenatransfertotheright-hand orRESPONSENOTOBTAINED(RNO)column.Thiscolumninstructs manualclosureofthevalves.Aftertheperfor-manceofthisactiontheoperatorproceedstothenexttaskintheleft-hand column.Ifanyvalvecannotbeclosed,theoperatorstillproceedstothenexttaskintheleft-hand column.

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Step2containsahighlevelactionstepto"CheckIfEitherS/GIsNotFaulted"withasubstep"a."taskproviding moredetailonhowtocompletethistask.Thesubstepinstructs thecheckingofpressures inbothS/G's.Theexpectedresponseof"EITHERS/GSTABLEORINCREASING" issatisfied ifthepressureinoneS/G,orboth,isstableorincreasing andtheuserproceedstoStep3.Ifpressureisdecreasing inboth'S/G's,thentheleft-hand columnisnotsatisfiedandamovetotheRNOcolumnismade.TheRNOcolumndirectsatransition toECA-2.1ifbothS/G'spressurearedecreasing inanuncontrolled manner.Atthispointtheoperators mustdetermine ifthedecreasing pressureiscontrolled oruncontrolled.

Ifitisinfactuncontrolled bytheoperators, thenthetransition ismade.Ifthedepressurization inatleastoneS/Gisundercontrol,thentheyproceedtotheleft-hand columnandintoStep3.Step3directstheuserto"IDENTIFY FAULTEDS/G(s)"andagainusesasubstepfordetailedtaskdescription.

Twoindications areusedtodetermine ifaS/Gisfaulted.IfaS/Gisdepressur-izinginanuncontrolled manneroriscompletely depressurized itisidentified asbeingfaultedandtheoperatormovesontoStep4.TheuseofthewordORbetweenthetwobulletmarkedconditions signifies thatonlyoneoftheconditions needbesatisfied toidentifyafaultedS/G.IfnoS/Gsatisfies eitherlistedcondition, thentheoperatormovestotheRNOcolumn.TheRNOactiondirectsasearchfortheinitiating breakas'tisassumedthatthebreakhasbeenisolatedbythepreviousclosureoftheMSIVandbypass.Oncethesearchisbeguntheactionportionofthestepissatisfied andmovementthroughtheprocedure maycontinue.

TheRNOstepnowtellstheusertoGOTOStep5.ThisbypassestheStep4isolation asnofaultedS/Gnowexists.Step,4tellstheoperators to"IsolateFaultedS/G"andprovidesalistofinletandoutletflowpathstobeisolated.

Thesearelistedwithbulletdesignators therebynotingthatnoparticular'rder ofisolation isrequired.

Theoperators proceedtoverifyisolatedorisolatepathsfromthecontrolroomanddispatchpersonnel tothelistedareasforotherpaths.Ifsomeaspectofthecontrolroomisolation processisnotsatisfied, theRNOcolumnisaccessed.

TheRNOcolumndirectsclosingvalvesfromthecontrolroomand,ifthatisnotpossible, dispatching personnel toperformlocalisolations.

Withcontingency actionscompleted orlocalactionsinitiated, theoperatorproceedstoStep5.Step5requiresacheckoftheCondensate StorageTankslevel.Ifthelevelisgreaterthan5feet,theexpectedresponseissatisfied andtheoperatormovestoStep6.Ifthelevelisnotgreaterthan5feetthentheRNOcolumninstructs aswitchtoanalternate AFWwatersupplyandprovidesareference toER-AFW.l.

lIbr<Ir00 SincethisisaREFERTOstatement theE-2procedure isnotexited.TheER-AFW.1procedure isusedinparallelwiththeE-2procedure, aspossibleandappropriate, andtheoperatormovesontoStep6.Step6directsacheckofsecondary radiation indicators.

Severalsubstepsareusedtosatisfythehighlevelactionstep.Inthefirstsubsteptheoperatorwillrequestperiodicsamplesbecollected byHPpersonnel.

Thedesiredsamplesarespecified andtheappropriate procedures arereferenced.

OncetheHPdepartment isnotifiedthissubstepissatisfied andtheoperatorproceedstothenextsubstep.Heretheoperators aredirectedtocheckanyunisolated secondary radiation monitors.

Alistofthosemonitorswhichmaybeusedfromthecontrolroomisincluded.

Thethirdsubstepisaconclusion oftheradiation checkprocess.Iftheradiation levelsarenormaltheoperatorproceedstostep7.Ifabnormalradiation isdetected, thentheoperatormovestotheRNOcolumn.Thisentrydirectsatransition toE-3,therefore theE-2procedure isexitedandentryismadeintotheE-3procedure.

Step7directstheoperatortoGOTOE-l,thisendstheuseoftheE-2procedure andprovidesdirection fortransition toanotherappropriate procedure, E-1isenteredatstepone,theCAUTIONSandNOTEbeforesteponeinE-1aretoberead.

e0 A-503.1:15 ATTACHMENT 2CRITICALSAFETYFUNCTIONSTATUSTREEUSETheprocessofworkingthroughthestatustreescanbeillustrated byusingCSFST:F-0.1,SUBCRITICALITY.

(FIGURE1)Theuserentersthetreeontheleft-hand sideofthearrow.Thefirstblockasksifthepowerrangeinstruments indicatelessthan5%.ThepossibleanswersareYESorNO.Ifindicated powerisgreaterthan5%,thentheresponseisNO.ExitingthedecisionboxattheNOsegmentplacestheuseronapathwhichleadsdirectlytoaterminus.

At.thispointitisdetermined that:otheresponsepriorityisREDotheappropriate FunctionRestoration procedure isFR-S.lAccording totherulesofpriorityanyprocedure ineffect,otherthanECA-0.0ortheimmediate actionsofE-O,wouldbesuspended andactionsforFR-S.1wouldbeinitiated.

SinceSubcriticality isthehighestpriorityCriticalSafetyFunction, thiswouldalsosuspendanyFRprocedure ineffectotherthanFR-S.l.Monitoring oftheCSFSTsmaycontinueforinformation purposes.

WhenFR-S.1iscompletetheuserisdirectedtoreturntotheprocedure andstepineffect.Thispermitsareturntothesuspended procedure atthepointofsuspension, oranyotherREDorORANGEpathsidentified wouldnowbeaddressed intheirpriorityorder.Ifindicated powerislessthan5%,thefirstdecisionblockisexitedattheYESsectionpathwaywhichleadstothenextdecisionblock.Thisblockaskstheuseriftheintermediate rangestartuprateiszeroornegative.

IfthestartuprateispositivetheblockisexitedattheNOsection.Thispathleadsdirectlytoaterminuswhereitisdetermined that:otheresponsepriorityisORANGEotheprocedure tobeusedisFR-S.lTheusernowmustchecktheotherstatustreestodetermine ifaREDpathexistsonanothertree.IfnoREDpathconditions existtheSubcriticality ORANGEpathbecomesthepriorityprocedure andsuspension ofaninuseprocedure occursaspreviously described.

Undertheseconditions monitoring oftheCSFSTscontinues andifaREDpathcondition arisesittakespriority.

WhenFR-S.1iscompleted, areturntothepreviously suspended procedure takesplace.IfanyotherORANGEpathconditions hadoccurred, they"-=""'ould nowbeaddresses intheorderofpriority.

a A-503.1:16 Ifthestartuprateisdetermined tobezeroornegative, exitisbytheYESsegmentwhichleadstoanotherdecisionblock.Theuserisnowaskedtodetermine ifasourcerangeisenergized.

Ifnosourcerangeisenergized thisblockisexitedviatheNOsegmenttoanotherdecisionblock.Thisblockasksiftheintermediate rangestartuprateismorenegativethan-0.2DPM.Iftheindicated startuprateisbetween0and-0.2DPM,theusernowexitsattheNOsectionandreachesaterminuswhereitisdetermined that:otheresponsepriorityisYELLOWotheappropriate responseprocedure isFR-S.2SincethestatusisaYellowcondition, theremaining treesarecheckedtodetermine ifanyRedorOrangeconditions exist.Ifnocondition color-coded higherthanYellowexists,thenadecisions madewhetherFR-S.2istobeperformed ornot.OftenaYellowpathindicates anoff-normal condition whichmayberestoredtosatisfied statusbyactionsinprogress.

Itmayalsobethecasethatthecondition isexpectedoracceptable foraparticular transient orevolution inprogress.

Iftheintermediate rangestartuprateismorenegativethan-0.2DPM,thenthedecisionblockisexitedfromtheYESsegment.ThisleadsdirectlytoaGreenterminuswhichisannotated CSFSAT.TheSubcriticality SafetyFunctionissatisfied andtheusermovesontothenexttreeinthesecpxence.

Ifinthethirddecisionblockitisdetermined thatasourcerangeisenergized, theYESexitistakenwhichleadstoanotherdecisionblock.Thistimetheuserisaskedtodetermine ifthesourcerangestartuprateiszeroornegative.

Ifthestartuprateisdetermined tobepositivetheNOexitistakenwhichleadsdirectlytoaYellowterminus.

Againtheothertreesarecheckedandthenadecisionmaybemadewhetherornottoimplement FR-ST2'fthesourcerangestartuprateisdetermined tobezeroornegativetheYESsegmentexitleadsdirectlytoaGreenorsatisfied terminusandtheusermovesonthenextstatustree.

C CSFST:F-0.1TITLE;POWERRANGELESSTHAN5%SUBCRITICALITY NOYESNOINTERMEDIATE RANGESURZEROORNEGATIVEYESrt-'g~ve-lSOURCERANGEENERGIZED INTERMEDIATE RANGESURMORENEGATIVETHAN-0.2DPMNOYESSOURCERANGESURZEROORNEGATIVEREv:0PAGE1OFNOYESNOYESGOTOFR-S.1GOTOFR-S.1GOTOFR-S.2CSFSATGOTOFR-S.2CSFSAT 4

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