Bell 429 - Page 49

BHT-429-MPI
Table1.ZonalInspections—MechanicalAssemblies/SystemsandStructure(continued)
ITEM
DEFECT,DAMAGE,FAILURE,ORIRREGULARITY
Wear,chang,dents,distortion,fouling,bending,scoring,andfraying
Loose,damaged,ormissingfasteners
Fluidleakage
Correctoperationofdrainholes(i.e.,noblockageorobstruction)
Moistureaccumulation
Correctinstallationandsecurityofcontrolrodsandbellcranks
Correctinstallationofwiringharnesses,electricalbonding,groundstuds,
andtubing
Correctinstallationofconnectorsandbackshells.(e.g.,noredwitness
bandsarevisible)
Correctinstallationofconnectorsandbackshellswithotherformsof
LightningandHighIntensityRadiatedFrequency(L/HIRF)protection
Table2.ZonalInspections—CompositeStructure
ITEM
DEFECT,DAMAGE,FAILURE,ORIRREGULARITY
CompositestructureCleanliness
Discoloration(duetooverheating)
Delaminationandvoids
Foreignmatter,signsofscratches,crazing,cracks,dents,andpitting
Airbubbles,blisters,porosity,orangepeeling,andwrinkles
Table3.ZonalInspections—ElectricalWireInterconnectionSystem(EWIS)
ITEM
(1)
DEFECT,DAMAGE,FAILURE,ORIRREGULARITY
Wire/wireharnessesWirebundle/wirebundleorwirebundle/structurecontact/chang
Wirebundlesaggingorimproperlysecured
Wiresdamaged(obviousdamageduetomechanicalimpact,overheat,
localizedchang,etc.)
Lacingtapeand/ortiesmissing/incorrectlyinstalled
Wiringprotectionsheath/conduitdeformityorincorrectlyinstalled
Endofsheathrubbingonendattachmentdevice
Grommetmissingordamaged
Dustandlintaccumulation
Surfacecontaminationbymetalshavings/swarf
Contaminationbyliquids
Deteriorationofpreviousrepairs(e.g.,splices)
Deteriorationofproductionsplices
Inappropriaterepairs(e.g.,incorrectsplice)
Inappropriateattachmentstoorseparationfromuidlines
Connectors
Externalcorrosiononreceptacles
Missing/looseordamageddustcap
Backshelltailbroken
Rubberpadorpackingonbackshellmissing
Applicableto:ALL429-A-05-40-00-00A-028A-A
ECCNEAR993DEC2019-Issue2Page5