Bell 429 Technical manual

BHT-429-MPI
MAINTENANCEPLANNINGINFORMATION
NOTICE
Theinstructionssetforthinthismanual,assupplementedormodiedbyAlertServiceBulletins(ASB)
orotherdirectionsissuedbyBellandAirworthinessDirectives(AD)issuedbytheapplicableregulatory
agencies,shallbestrictlyfollowed.
Copyright©2017BellandBellCanadaLtd.Allrightsreserved
ExportClassicationC,ECCNEAR99Issue2-3DEC2019

BHT-429-MPI
PROPRIETARYRIGHTSNOTICE
ThesedataareproprietarytoBellDisclosure,reproduction,oruseofthesedata
foranypurposesotherthanhelicopteroperationandmaintenanceisforbidden
withoutpriorauthorizationfromBell
DESTINATIONCONTROLSTATEMENT
Thesecommodities,technology,orsoftwarewereexportedfromtheUnited
StatesinaccordancewiththeExportAdministrationRegulations(EAR).
DiversioncontrarytoU.S.lawprohibited.
Additionalcopiesofthispublicationmaybeobtainedbycontacting:
CommercialPublicationsDistributionCenterBellP .O.Box482Fort
Worth,T exas76101-0482
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LISTOFCHAPTERS
ChapterDatamodulecode
Chapter04-AirworthinessLimitationsSchedule429-A-04-00-00-00A-009A-A
Chapter05-Inspections429-A-05-00-00-00A-009A-A
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ListofEffectiveDataModules
Thelisteddocumentsareincludedinissue002,dated2019-12-03,ofthispublication.
C=Changeddatamodule,N=Newdatamodule
DocumenttitleDatamodulecodeIssuedateApplicable
to
Temporaryrevisionrecord-Technicalstandard
records
DMC-429-A-00-71-00-00A-008A-AN2017-05-18ALL
Customersupportandservices-FunctionDMC-BHT-A-00-00-00-00A-011A-AN2017-01-20ALL
Customerfeedback,helicoptersalesnoticeand
warranty-Administrativeformsanddata
DMC-BHT-A-00-00-00-00A-023A-AN2017-01-20ALL
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Temporaryrevisionrecord-Technicalstandardrecords
Thistemporaryrevisionrecordprovidesacurrentlistingofactivetemporaryrevisionsagainstthemanual.Temporaryrevisions
whichhavebeencanceled/incorporatedwillonlybemaintainedontherecorduntilthenextrevisionisissued.Ifthereareno
temporaryrevisionsshownontherecord,thisisconrmationthattherearenotemporaryrevisionsissuedagainstthemanual.
TemporaryRevisionNo.TitleDateissuedDatecanceled
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Customersupportandservices-Function
1.Customersupportandservices
Flyingsmartmeansthatnomatterwhereyouare,orwhattimeitis,youcanmakeacallandgetadditionalinformation,
clarication,oradviceonatechnicaloroperationalissueconcerningyourhelicopterorinformationcontainedinour
TechnicalPublications.ProductSupportEngineering(PSE)isjustaphonecallawayandmaybecontactedasfollows:
PSELight(206/407/505):
Phone:[phone]or800-363-8023(US/Canada)
Fax:[phone]
E-mail:pselight@bellight.com
PSEIntermediate(222/230/427/429/430):
Phone:[phone]or800-463-3036(US/Canada)
Fax:[phone]
E-mail:pseinter@bellight.com
PSEMedium(204/205/212/412):
Phone:[phone]or800-363-8028(US/Canada)
Fax:[phone]
E-mail:psemedium@bellight.com
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Customerfeedback,helicoptersalesnoticeandwarranty-Administrativeformsanddata
THISMANUALAPPLIESONLYTOHELICOPTERSANDCOMPONENTSMAINTAINEDIN
ACCORDANCEWITHBELLAPPROVEDPROCEDURESUSINGBELLAPPROVEDPARTS.
ALLINSPECTION,REPAIRANDOVERHAULPROCEDURESPUBLISHEDBYBELL,INCLUDING
PARTRETIREMENTLIFE,AREBASEDSOLELYONTHEUSEOFBELLPARTSTHATHAVEBEEN
MAINTAINEDUSINGBELLAPPROVEDDATA.THEDATAPUBLISHEDHEREINOROTHERWISE
SUPPLIEDBYBELLISNOTAPPLICABLETONON-BELLPARTSORPARTSTHATHAVEBEEN
REPAIREDUSINGDATAAND/ORPROCESSESNOTAPPROVEDBYBELL.
BELLISNOTRESPONSIBLEFORANYPARTOTHERTHANTHOSETHATITHASAPPROVED.
BEFOREPERFORMINGANYPROCEDURECONTAINEDINTHISMANUALYOUMUSTINSPECTTHE
AFFECTEDPARTSANDRECORDSFOREVIDENCEOFANYMANUFACTURE,REPAIR,REWORK,
ORUSEOFAPROCESSNOTAPPROVEDBYBELL.
IFYOUIDENTIFYORSUSPECTTHEUSEOFPARTSNOTAUTHORIZEDBYBELL,EITHERREMOVE
THEAFFECTEDITEMFROMTHEAIRCRAFTOROBTAININSTRUCTIONSFORCONTINUED
AIRWORTHINESSFROMTHEMANUFACTURERORTHEORGANIZATIONTHATAPPROVEDTHE
REPAIR.
RefertoFigure4,Figure1,Figure2,andFigure3.
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ICN-BHT-A-000000-A-97499-00002-F-001-01
Figure1.Customerfeedback(Sheet1of2)
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Figure1.Customerfeedback(Sheet2of2)
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Figure2.Salesnotice(Sheet1of2)
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ICN-BHT-A-000000-A-97499-00005-F-001-01
Figure2.Salesnotice(Sheet2of2)
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ICN-BHT-A-000000-A-97499-00006-F-001-01
Figure3.Warranty(Sheet1of1)
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ICN-BHT-A-000000-A-97499-00007-F-001-01
Figure4.HELPpage(Sheet1of1)
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UseofaS1000Dpublication-Introduction
1.UseofaS1000Dpublication-Generalinformation
1.1.Documentstructure
ThebreakdownofthehelicopterintosystemswithinthemanualsisdoneundertheS1000Dspecication
(S1000D-I9005-01000-00,IssueNo.4.0,4,may12,2009).
ThispublicationiswritteninSimpliedEnglishandobeystheinstructionsgivenindocument(ASD-STE100,Issue6,
January2013).TheEuropeanAssociationofAerospaceIndustries(ASD)preparedthesedocuments.
Allthedataareincludedindatamodules.Acodeidentieseachdatamodule.
1.1.1.DataModuleCode(DMC)
TheDataModuleCode(DMC)structureisshowninTable1.
Table1.DMCstructure
BHTA29-10-0100A520AA
Paragraph1.1.1.1Paragraph1.1.1.2Paragraph1.1.1.3Paragraph1.1.1.4Paragraph1.1.1.5Paragraph1.1.1.6
1.1.1.1.Modelidenticationcode
ThemodelidenticationcodeisBHT .
1.1.1.2.Systemdifferencecode
Thesystemdifferencecodeisaletter(lettersIand0arenotused).
Thisletteridentiestwoormoresub-systemsthatcanbeinstalledasalternativeitemsbecausetheydothesame
function.
1.1.1.3.StandardNumberingSystem(SNS)code
TheStandardNumberingSystem(SNS)codeincludesthreepairsofdigitsthatshow:
-Thesystem(e.g.,29,hydraulicpower)
-Thesubsystemandthesub-subsystem(e.g.,10,mainhydraulic)
NOTE
Whenthesub-subsystemcodeiszero,thetwodigitsshowallofthesubsystem.
-Thecomponent(e.g.,01,hydraulicreservoirltermodule)
1.1.1.4.Disassemblycodeanddisassemblycodevariant
1.1.1.4.1.Disassemblycode
Thedisassemblycodeisatwo-digitcode.
Thedisassemblycodeshowsthebreakdownofacomponent,asfollows:
-00-Datamoduleforallofthehelicopter,system,subsystem,orcomponent.
-01-Datamodulefortherstassemblythatyouremovefromthecomponent.
-02-Datamoduleforthesecondassemblythatyouremovefromthecomponent.
Code03andthesubsequentcodesrefertothethird,fourth,etcassemblythatyouremovefromthecomponent.
Thedisassemblycodealsoidentiesthedatamodulesinsequence.
1.1.1.4.2.Disassemblycodevariant
Thedisassemblycodevariantisaletter(lettersIand0arenotused)thatidentiesalternativeitems.
Theseitemsaredifferent,butthedifferenceistoosmalltocauseachangeinthesystemdifferencecode.
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1.1.1.5.Informationcodeandinformationcodevariant
1.1.1.5.1.Informationcode
Theinformationcodeisathree-digitcode.
Theinformationcodeidentiesthetypesofinformationyoucanndinthedatamodule.
1.1.1.5.2.Informationcodevariant
Theinformationcodevariantisaletter(lettersIand0arenotused).
Theinformationcodevariantisusedfordifferentdatamodulesthatareapplicabletothesamecomponentand
typeofoperation.
1.1.1.6.Itemlocationcode
Youcanndtheseitemlocationcodes:
-Aonthehelicopter.
-Bontheremovedassembly/component.
-Dapplicabletoallthelocations.
-Zisusedasagenericitemlocationcode.
1.1.2.ListofEffectiveDataModules(LOEDM)
EachchapterincludesaListofEffectiveDataModules(LOEDM).Thelistshowsthedatamodulecodesofall
thedatamodulesinthechapter.
TheLOEDMgivestheinformationthatfollowsforeachdatamodule:
-Technicalnameandinformationnamecolumns.Thesetwocolumnstogethergivethetitleofthedatamodule.
-Documentidentiercolumn.Thiscolumngivesthedatamodulecode.
-Thestatusofthedatamodule.Thiscolumngivestheinformationaboutthestatusofthedatamodule(Nfor
newandCforchanged).
-Issuedate.Thiscolumngivesthedateofthedatamodulechanges.
-Applicabilitycolumn.Thiscolumngivesinformationabouttheapplicabilityofthedatamoduletodifferentversions,
congurations,andmodicationsofthehelicopter.
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Maintenanceplanninginformation-Listsofterms
1.Glossaryofterms
AirworthinessLimitationsAsectionoftheInstructionsforContinuedAirworthiness(ICA)thatcontainseach
mandatoryreplacementtime,inspectioninterval,andrelatedinspectiontask
(429-A-04-00-00-00A-009A-A).TheinformationcontainedintheAirworthiness
Limitationssectionmaybechangedtoreectserviceand/ortestexperienceor
newanalysismethods.
CalendarTimeTheelapsedtimeapplicabletoaspeciedcalendarinterval.Theelapsedtime
startsonthedaytheinspectioniscompleted,thecomponentisinstalled,orthe
rotoristurnedforthersttimeandendsonthedaythatthetimelimitexpires.For
example,ifarepetitiveinspectiontaskwithacalendartimeof1yeariscompleted
onJune10th,thetaskwouldneedtobesubsequentlyperformedonJune10th
ofthefollowingyear.Calendartimeiscontinuous.Calendartimedoesnotstop
whenremovingacomponentorplacingthehelicopterinstorage,etc..
ConditionThestateofanitemcomparedtoaknownstandard.
DamageAphysicaldeteriorationofacomponent.
DelaminationStructuralseparationorcrackingthatoccursatorinthebondplaneofastructural
element,withinastructuralassembly,causedbyinserviceaccidentaldamage,
environmentaleffects,and/orcyclicloading.
DisbondSeeDelamination.
DiscardTheremovalfromserviceofanitemataspeciedlifelimitoritemthathas
damagethatcannotberepaired.
ElectricalWireInterconnection
System(EWIS)
Anelectricalconnectionbetweentwoormorepointsincludingtheassociated
terminationdevices(e.g.,connectors,terminalblocks,splices)andthenecessary
meansforitsinstallationandidentication.Itdoesnotincludesystemcomponents
(linereplaceableunits),relays,lights,etc.
Examine,VisuallyLookcarefullytodeterminetheconditionofapart/component.Findhowthat
conditionrelatestoaspecicstandard.
FailureTheinabilityofanitemtoperformwithinpreviouslyspeciedlimits.
FaultAnidentiableconditioninwhichoneelementofaredundantsystemhasfailed
(nolongeravailable)withoutimpactontherequiredfunctionoutputofthesystem.
Atthesystemlevel,afaultisnotconsideredafunctionalfailure.
FlightTimeSeeTime-in-Service(FlightTime).
FunctionThenormalcharacteristicactionsofanitem.
FunctionalCheckAquantitativechecktodetermineifoneormorefunctionsofanitemperforms
withinspeciedlimits.
FunctionalFailureFailureofanitemtoperformitsintendedfunctionwithinspeciedlimits.
InspectionAnon-destructiveexaminationofapart,component,orsystemtoverifyits
conformitytoaspecicstandard.
Inspection,DetailedAnintensiveexaminationofaspecicitem,installation,orassemblytodetect
damage,failure,orirregularity.Availablelightingisnormallysupplementedwith
adirectsourceofgoodlightingatanintensitydeemedappropriate.Inspection
aidssuchasmirrors,magnifyinglenses,etc.maybenecessary.Surfacecleaning
andelaborateaccessproceduresmayberequired.
Inspection,GeneralVisualAvisualexaminationofaninteriororexteriorarea,installation,orassemblyto
detectobviousdamage,failure,orirregularity.Thislevelofinspectionismade
fromwithintouchingdistance,unlessotherwisespecied.Amirrormaybe
necessarytoenhancevisualaccesstoallexposedsurfacesintheinspectionarea.
Thislevelofinspectionismadeundernormalavailablelightingconditionssuch
asdaylight,hangarlighting,ashlight,ordrop-lightandmayrequireremovalor
openingofaccesspanelsordoors.Stands,ladders,orplatformsmayberequired
togainproximitytotheareabeingchecked.
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Inspection,SpecialDetailedAnintensiveexaminationofaspecicitem,installation,orassemblytodetect
damage,failure,orirregularity.Theexaminationislikelytomakeextensiveuse
ofspecializedinspectiontechniquesand/orequipment.Intricatecleaningand
substantialaccessordisassemblyproceduresmayberequired.
Inspection,ZonalAcollectivetermcomprisingselectedgeneralvisualinspectionsandvisualchecks
thatisappliedtoeachzone,denedbyaccessandarea,tochecksystemand
powerplantinstallationsandstructureforsecurityandgeneralcondition.
Inspection,Non-scheduledAninspectionthatisnotpartofaschedule.
Inspection,OpportunityAninspectionthatisperformedinconjunctionwithanotherscheduledinspection
ormaintenancetask,whileinthesameareaorzone.
Interval,InitialIntervalbetweenthestartofservice-lifeandthersttaskaccomplishment.
Interval,RepeatTheinterval(aftertheinitialinterval)betweensuccessiveaccomplishmentsof
aspecicmaintenancetask.
ItemAnylevelofhardwareassembly(e.g.,system,subsystem,module,accessory,
component,unit,part,etc.).
LubricationSeeServicing.
MaintenanceTheservicingand/ortherepairofahelicopter,asystem,oracomponentto
maintainitsserviceability.
Maintenance,PreventiveTodosmallmaintenanceaction(s)onaregularbasistopreventnon-scheduled
maintenance.
MaintenanceSignicantItem
(MSI)
Itemsidentiedbythemanufacturerwhosefailure:
1.couldaffectsafety(ongroundorinight),and/or
2.isundetectableduringoperations,and/or
3.couldhavesignicantoperationalimpact,and/or
4.couldhavesignicanteconomicimpact.
OperatingTimeActualighttimeorcalendartimethatmustberecordedintheHistoricalService
Records(HSR)orinthehelicopterlogs.Theoperatingtimeisspeciedas
Time-in-Service(FlightTime)and/orCalendarTime.
OperationalCheckAtasktodeterminethatanitemisfulllingitsintendedpurpose.Itdoesnot
requirequantitativetolerances.Thisisafailurendingtask.
Program,Lead-The-Fleet(LTF)Aprogramusedtovalidatetheperformanceofanapprovedproductimprovement
orachangetoamaintenanceinterval.Theengineeringaspectsofthischange
areapproved.TheprogramiscloselymonitoredbyBellHelicopterT extron(BHT)
inanoperationalenvironmentwithselectedoperators.
Program,SpecialAnapprovedprogramthatmaybeinitiatedundercertainspecialconditionsto
meetspecicrequirements.Theprogramisclearlydenedthroughaplanandthe
engineeringandmaintenanceaspectsareapprovedbytheregulatoryauthorities.
ProtectiveDeviceAnydeviceorsystemthathasafunctiontoavoid,eliminate,orreducethe
consequencesofaneventorthefailureofsomeotherfunction.
ResidualFuelTheamountofunusablefuelthatcanbedrained.
RetirementIndexNumber(RIN)Thisisforcomponentssensitivetooperationalevents,suchasnormallandings,
run-onlandings,andautorotationlandings.Thisnumberisbasedonthefatigue
damagethatresultsfromtheseevents.
SafetySafetyshallbeconsideredasadverselyaffectediftheconsequencesofthefailure
conditionwouldpreventcontinuedsafeightandlandingofthehelicopterand/or
mightcauseseriousorfatalinjurytohumanoccupants.
ScaleReadingThevaluerecordeddirectlybyascalebeforesubtractingthetareweight.
SecurityThepresenceofattachingpartsthatareproperlytightenedorappeartobe,and
thepresenceofproperlyinstalled(asrequired)lockingdevicessuchaslockwire,
cotterpins,orother.
ServicingAnyactoflubricatingorservicingforthepurposeofmaintaininginherentdesign
capabilities.
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StandardAspeciedrule,reference,ormeasurethatyouusetodeterminethecondition
ofacomponent.
Time-in-Service(FlightTime)Themeasuredtimethatstartsthemomentthehelicopterleavesthegroundand
continuesuntilittouchesthegroundatthenextpointoflanding.Thetimewhenthe
helicopterisontheground,withtheengineandtherotorturning,isnotincluded.
TorqueEventAsignicantchangeinpowersetting.Thetypesofpowersettingchangesareas
follows:
-AGround-Air-Ground(GAG)event(i.e.,onetakeoffplusthesubsequent
landing)
-Aloadlift,suchasacargohookliftoperation,awaterbucketliftoperation,or
anairbornereplenishmentofxedinternalorexternalreservoirs
ZoneAlimitedareaofthehelicopterthatmaycontainmorethanonesystemor
component,whetherrelatedornot.Azoneincludesallofthestructural
assemblies,mechanicalassemblies,mechanicalsystems,andElectricalWire
InterconnectionSystems(EWIS)containedwithinthezonelimits(BHT-429-MM,
Chapter6).
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