Bell 429 - Page 154

BHT-429-MPI
Table1.ConditionalInspections-MainRotorOverspeed(continued)
INITIAL
DATAREFERENCEINSPECTIONTASKDESCRIPTION
MECHOTHER
(1)Ifagripassemblyisdeformed,removeanddiscardallofthegrips.
(2)Iftheupperorloweryokeassemblyisdelaminated,removeand
discardtheyoke.
(3)Removethemainrotorhubassembly.
(4)AttachaTHISCOMPONENTWASREMOVEDFROMSERVICE
BECAUSEOFAMAINROTOROVERSPEEDtagonthemainrotor
hubassembly.
429-MM,Chapter62
(5)Disassemble,clean,anddoadetailedinspectionofthemainrotor
hubassembly.
c.Ifnodamageisfound,themainrotorhubassemblyisserviceable.
429-MM,Chapter64TAILROTOR
1.Doaninspectionofeachtailrotorbladeasfollows:
a.Removethetailrotorblade.
b.Examinethetailrotorbladeforcondition.
c.Discardthetailrotorbladeifanyofthefollowingdamageisfound:
•Thetipblockhasmovedorhasacrack
•Thebladeboltbushingsareloose
d.Ifanydamageisfoundonthetailrotorblade,dothefollowing:
(1)AttachaTHISCOMPONENTWASREMOVEDFROMSERVICE
BECAUSEOFAMAINROTOROVERSPEEDtagonthetailrotorblade.
(2)Sendthetailrotorbladetoanapprovedfacilityforfurtherinspection
andrepair.
(3)Discardtheboltsofthetailrotorblade.
e.Ifnodamageisfoundonthetailrotorblade,thebladeisserviceable.
2.Doaninspectionofthetailrotorhubassembliesasfollows:
a.Visuallyexaminethetailrotorhubassembliesforcondition.
b.Ifanydamageisfound,dothefollowing:
(1)Removethetailrotorhubassemblies.
(2)AttachaTHISCOMPONENTWASREMOVEDFROMSERVICE
BECAUSEOFAMAINROTOROVERSPEEDtagonthetailrotorhub
assemblies.
429-MM,Chapter64
(3)Disassemble,clean,anddoadetailedinspectionofthetailrotor
hubassemblies.
c.Ifnodamageisfound,thetailrotorhubassembliesareserviceable.
429-MM,Chapter63
429-MM,Chapter65
MAINROTORANDTAILROTORDRIVESYSTEMS
1.Visuallyexaminethechipdetectorsofthetransmissionassemblyand
tailrotorgearboxforcontamination.Ifthereareunwantedparticles,
dothefollowing:
a.Removethetransmissionassemblyorthetailrotorgearbox,as
applicable.
b.AttachaTHISCOMPONENTWASREMOVEDFROMSERVICE
BECAUSEOFAMAINROTOROVERSPEEDtagonthetransmission
assemblyortailrotorgearbox,asapplicable.
429-A-05-50-00-03A-284A-AApplicableto:ALL
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