空客的三字代码互换性说明

空客的三字代码互换性说明Definitions4InterchangeabilityCodes(SpareswithDifferentPartNumber)IntroductionWhenapartissubmittedtochanges,itisnecessarytodefinetherelationshipintermsofinterchangeabilitybetweenthenewandthepreviouspart(s)definition,respectivelyidentifiedbynewPNandpreviousPNlinkedbyamodification.Itmayalsobenecessarytodefinetherelationshipintermsofinterchangeabilitybetweenpartsnotlinkedbyasinglemodification.Inbothcases,thesameprocessapplies.ATAinterchangeabilitycodesATAdefines"one-digit"interchangeabilitycodesintheCommonSupportDataDictionary(CSDD)issuedbytheATA,asfollows:CODETITLEATACUSTOMERSUPPORTDATADICTIONARYDESCRIPTION1One-WayInterchangeableThenewPNisanacceptablereplacementforeithertheoldorthenewPN.TheoldPNmaybeusedasareplacementonlywheretheoldPNwasinstalled2Two-WayInterchangeableTheoldandthenewPNareeachacceptablereplacementforboththeoldandnewPN3NotInterchangeableWhentheoldpartisremoved,itmustbereplacedwiththesamePN.WhenthenewPNisremoved,itmustbereplacedwiththenewPN4Interchangeable"asaset"ReplacementrequiresthattheentirequantityoftheoldpartusedinaninstallationbereplacedwithacompletesetofthenewPN.ForsetscomprisedofmorethanonePN,code5applies5QualifiedInterchangeabilityAppliestoreplacementsituationsnotdescribedbytheabove4codesorwhennotapplicabletoallaircraftorenginesspecifiedbytheModelofApplicabilityCode6PartRe-identificationCorrectstheidentificationofareplacing/replacedpartinanestablishedReplacingPartDataText(RPD)orReplacedPartDataText(RPE)DefinitionsAIRBUSinterchangeabilitycodesBackgroundTheATACSDDinterchangeabilitycodes1,4and5,asshownabovedonotprovideenoughinformationregardinginterchangeabilitypossibilitieswithorwithoutapplicationofconditions.IncaseofATACSDDinterchangeabilitycode1,Airbushasdecidedtoapplyinternallythefollowingdefinition:CODETITLEAIRBUSDESCRIPTION1One-WayInterchangeableThenewPNisanacceptablereplacementforeithertheoldornewPNinstalledasA/Cdefinition.TheoldPNmaybeusedasareplacementonlywheretheoldPNwasinstalledasA/Cdefinition.IncaseofATACSDDinterchangeabilitycode4and5,Airbushasdecidedtoapplyinternallythefollowingcoding,basedonthreedigits(e.g.152,341).Theresultsofthiscodingshallbetranslatedindocumentsprovidedtoendusers(Operators,MaintenanceCenters,…).ArchitectureprinciplesoftheAirbusinterchangeabilitycodesTheFirstdigitgivestheinterchangeabilitycodeobtainedincasethereisnoassociatedconditionorincasetheconditionsarenotfulfilled.1:One-wayinterchangeable2:Two-wayinterchangeable3:NotinterchangeableTheSeconddigitidentifiesthetypeofconditionthatmaybeassociated.0:Noconditionapplicable4:InterchangeableasasetofthesamePNonthesameaircraft(mixingoldandnewPNisnotallowed)5:AnyotherconditionapplicableduringmaintenanceactivitiesTheThirddigitidentifiestheinterchangeabilitycodeobtainedonlyifconditionsarefulfilled.0:Noconditionapplicable1:One-wayinterchangeable2:Two-wayinterchangeableRefertoAP2027.6formethodofselectinginterchangeabilitycode.DefinitionsListof3-digitinterchangeabilitycodesBasedonthesearchitecturerulesandontheA/Cdefinition(deliveryorretrofitafterAISBembodiment),thefollowingcodesaredefined:ICYCODETITLEDEFINITION100One-wayinterchangeablexWhentheoldPN(A/CdefinitionorAirbusSBretrofit)isremoved,itmaybereplacedeitherwiththeoldorwiththenewPN.xThenewPNinstalledasspares,canbereplacedbyitselfortheoldPN(noA/Cconfigurationchanges).xWhenthenewPN(A/CdefinitionorAirbusSBretrofit)isremoved,itmustbereplacedwiththenewPN.200Two-wayinterchangeablexWhentheoldPN(A/CdefinitionorAirbusSBretrofit)orthenewPN(A/CdefinitionorAirbusSBretrofit)isremoved,itmaybereplacedwiththeoldorwiththenewPN.300NotinterchangeablexWhentheoldPNisremoved,itmustbereplacedwiththeoldPN.xWhenthenewPNisremoved,itmustbereplacedwiththenewPN.(EquivalenttoATACSDDdefinitionforcode3)152One-wayInterchangeable,ButTwo-wayinterchangeablewithconditionsxWhentheoldPN(A/CdefinitionorAirbusSBretrofit)isremoved,itmaybereplacedeitherwiththeoldorwiththenewPNxWhenthenewPN(A/CdefinitionorAirbusSBretrxofit)isremoved,itmaybereplaced:xwiththenewPN,xwiththeoldPNonlyifspecifiedconditionsarefulfilled.341Notinterchangeable,ButOne-wayinterchangeableasasetxWhentheoldPN(A/CdefinitionorAirbusSBretrofit)isremoved,itmaybereplaced:xwiththeoldPN,xwiththenewPNonlyifthecompletesetofoldPNisreplacedwithasetofnewPN.thenewPN(A/CdefinitionorAirbusSBxWhenretrofit)isremoved,itmustbereplacedwiththenewPN.ote:ForseNtscomprisingmorethanonePN,code351applies.DefinitionsICYCODETITLEDEFINITION342NotinterchangeableButTwo-wayinterchangeableasasetxWhentheoldPN(A/CdefinitionorAirbusSBretrofit)isremoved,itmaybereplaced:xwiththeoldPN,xwiththenewPNonlyifthecompletesetofoldPNisreplacedwithasetofnewPN.xWhenthenewPN(A/CdefinitionorAirbusSBretrofit)isremoved,itmaybereplaced:xwiththenewPN,xwiththeoldPNonlyifthecompletesetofnewPNisreplacedwithasetofoldPN.Note:ForsetscomprisingmorethanonePN,thecode352applies.351Notinterchangeable,ButOne-wayinterchangeablewithconditionsxWhentheoldPN(A/CdefinitionorAirbusSBretrofit)isremoved,itmaybereplaced:xwiththeoldPN,xwiththenewPNonlyifspecifiedconditionsarefulfilled.xWhenthenewPN(A/CdefinitionorAirbusSBretrofit)isremoved,itmustbereplacedwiththenewPN.352Notinterchangeable,ButTwo-wayinterchangeablewithconditionsxWhentheoldPN(A/CdefinitionorAirbusSBretrofit)isremoved,itmaybereplaced:xwiththeoldPN,xwiththenewPNonlyifspecifiedconditionsarefulfilled.xWhenthenewPN(A/CdefinitionorAirbusSBretrofit)isremoved,itmaybereplaced:xwiththenewPN,xwiththeoldPNonlyifspecifiedconditionsarefulfilled.Note1:3-digitcodesotherthantheonesdefinedaboveshallnotbeused.Note2:Theevolutionsofthepart(PN1,PN2,PN3,PN4)inaccordancewiththeirrespectivemodificationsandinterchangeabilitycodes(ICY)canbeusedasspares(transitivity).TransitivityTheinterchangeabilitycodeauthorisestheairlinestoreplacethepartdefinedattheA/CdefinitionbyanotherpartwithoutA/Cconfigurationchange.IfICYis1or2WAYbetweenparts,thePN2,PN3orPN4canbeusedassparestoreplacethePN1validonA/Cdefinition.