Bell 429 - Page 158

BHT-429-MPI
Table1.ConditionalInspections-Overtorque(continued)
INITIAL
DATAREFERENCEINSPECTIONTASKDESCRIPTION
MECHOTHER
2.Doaninspectionofthemainrotorhubassemblyasfollows:
a.Visuallyexaminethemainrotorhubassemblyforcondition.
b.Ifanydamageisfound,dothefollowing:
(1)Ifagripassemblyisdeformed,removeanddiscardallofthegrips.
(2)Iftheupperorloweryokeassemblyisdelaminated,removeand
discardtheyoke(s).
(3)Iftheelastomericthrustbearing,shearbearing,orlead-lagdamperis
separatedordamaged,discardtheapplicablepart(s).
(4)Removethemainrotorhubassembly.
(5)AttachaTHISCOMPONENTWASREMOVEDFROMSERVICE
BECAUSEOFANOVERTORQUEtagonthemainrotorhubassembly.
429-MM,Chapter62
(6)Disassemble,clean,anddoadetailedinspectionofthemainrotor
hubassembly.
c.Ifnodamageisfound,themainrotorhubassemblyisserviceable.
3.Visuallyexaminetheswashplateandsupportassemblyforcondition.
4.Visuallyexaminethepitchlinkassembliesforconditionandreplace
anydamagedpart.
429-MM,Chapter67FLIGHTCONTROLS
1.Visuallyexaminethecyclictubeassembliesforconditionandreplace
anydamagedpart.
429-MM,Chapter63MAINROTORDRIVESYSTEM
1.Visuallyexaminethechipdetectorsofthetransmissionassemblyfor
contamination.Ifthereareunwantedparticles,dothefollowing:
a.Removethetransmissionassembly.
b.AttachaTHISCOMPONENTWASREMOVEDFROMSERVICE
BECAUSEOFANOVERTORQUEtagonthetransmissionassembly.
c.Sendthetransmissionassemblytoanapprovedrepairfacilityto
disassemble,clean,anddoadetailedinspection.
2.Visuallyexaminethetransmissiontopcase,adapterassemblies,and
attachmentstothepylonbeamassembliesforconditionandsecurity.If
damageisfound,dothefollowing:
a.Removethetransmissionassembly.
b.AttachaTHISCOMPONENTWASREMOVEDFROMSERVICE
BECAUSEOFANOVERTORQUEtagonthetransmissionassembly.
429-MM,Chapter63
c.Sendthetransmissionassemblytoanapprovedrepairfacilityto
disassemble,clean,anddoadetailedinspection.
3.Visuallyexaminethepylonbeamassemblies,verticalLiquidInertial
VibrationEliminator(LIVE)mounts,pitchrestraintspringassemblies,
ttingassemblies,andstoppinsforcondition.
4.Visuallyexaminefortheattachinghardwarebetweenthepylonbeam
assembliesandthecabinroofbeamsforconditionandsecurity.
5.Doaninspectionofeachengine-to-transmissiondriveshaftasfollows:
a.Examinetheengine-to-transmissiondriveshaftforconditionand
securityofattachment.
b.Ifanydamageisfoundontheengine-to-transmissiondriveshaft,
removeanddiscardthedriveshaft.
c.Ifnodamageisfoundontheengine-to-transmissiondriveshaft,the
driveshaftisserviceable.
429-A-05-50-00-04A-284A-AApplicableto:ALL
Page2Issue1-10JAN2019
ECCNEAR99