a320i航空股份工程技术维修管理部编制

中文标题:第1第1 BorescopeInspectionoftheStage1HPTBladesandDuct工作区域编写/修订Edited日期B工种额定工时MPD审核Examined日期版本实际工时Real批准Approved日期AMM720000-200-014-AUG<---工具信息牌数BORESCOPE-BORESCOPE-RIGHTANGLE, Torquewrench:rangetobetween62.00and900.00lbf.in(0.70and10.00m.daN)

PULLER, TUBE-BORESCOPE <---材料信息牌数V02-V10-anti-seizeV10-anti-seize备注/Remark：SelectOneProductionStandardANDRetrofitStandard的A5

第21工作任务**ONA/C451-509,511-650,701-72-00-00-200-014-此任务适用于完成SBE72-0562(SelectOneProductionorRetrofit的A5（SelectOneProduction）**ONA/C451-509,511-650,701-800TASK72-00-00-200-014-B01BorescopeInspectionoftheStage1HPTBladesandDuctSegmentsCAUTION:THELIMITSWHICHFOLLOWAREAPPLICABLEONACONTINUEINSERVICEBASISONLY.EACHLIMITISBASEDONWHATTHESTRUCTUREOFTHEBLADEMUSTBEANDDOESNOTINDICATETHATTHEREWILLNOTBEDETERIORATIONOFTHEENGINEPERFORMANCE,STABILITY,OPERATINGLIMITSORPARTThistaskisforA5enginesonly,whichhaveSBE72-0562incorporated(SelectOneProductionorRetrofitStandard).Thistaskgivestheprocedurefortheborescopeinspectionofthestage1HPTbladesandductsegments.Thistask mendstheuseofaflexibleborescope.Youcanusearigidborescopetoinspectforgeneraldamagetothebladesandductsegmentsbutarigidborescopewillnotpermityoutoseesufficientdetailtoinspectthebladesorductsegmentstothelimitsinthistask.NOTE:IfdamageisnotlistedcontactyourIAE2工作准备信息JobSet-up参 数 名无规 BORESCOPE-无规 BORESCOPE-RIGHTANGLE,无规 护眼无规 螺纹规(0.5625IN-18无规 警告 第3无规 扭力扳手:范围62.00and900.00(0.70and10.00 PULLER, TUBE-BORESCOPEA.Fixtures,Tools,TestandSupport QTYNo ARBORESCOPE-No ARBORESCOPE-RIGHTANGLE,No ARCOVER-No GAGE-THREAD(0.5625IN-18No ARWARNINGNo Torquewrench:rangetobetween62.00and900.00(0.70and10.00 1PULLER, 1TUBE-BORESCOPEB.参 名V02- V02- V10- V10- B.Consumable V02- corrosionresistantsteellockwire anti-seizecompoundV10- anti-seizeC. 项目名 IPC- 密封垫,备 42-10-81- 密封垫,备 45-00-80-C.Expendable IPC- gasket, 42-10-81- 第4 gasket, 45-00-80-D.参 名 进 控制组件 CrankPadLocationSHEETHPTurbineBorescopeLocationforInspectionoftheStage1HPTBlades(LeftSide)SHEET1HPTurbineBorescopePortsforInspectionoftheStage1HPTBlades(RightSide)SHEET1HPTurbinePortsforInspectionoftheStage1HPTBladesSHEET1Stage1HPTBladeInspectionAreasSHEET1BorescopePortsSHEET1BorescopeEquipmentSHEET1Stage1HPTBladeInspectionAreasSHEET1Stage1HPTBladeInspectionAreasSHEET1Stage1HPTBladeInspectionAreasSHEET1Stage1HPTBladeInspectionAreasSHEETStage1HPTDuctSegmentInspectionLocationsSHEET1BorescopePortsSHEET1D.Referenced 70-23-11-911-013-AGeneralTorqueTightening71-13-00-010-010-AOpeningoftheFanCowls71-13-00-410-010-AClosingoftheFanCowls72-00-00-080-010-ARemovaloftheRotatorKitforBorescope72-00-00-480-010-AInstallationoftheRotatorKitforBorescopeInspection74-21-41-000-010-ARemovaloftheIgniterPlug74-21-41-400-010-AInstallationoftheIgniter78-30-00-040-012-ADeactivationoftheThrustReverserHydraulicControl(HCU)forGround 第578-30-00-440-012-ARe-activationoftheThrustReverserHydraulicControlUnit(HCU)afterGroundMaintenance78-32-00-010-010-AOpeningoftheThrustReverserHalves78-32-00-410-010-AClosingoftheThrustReverserHalvesCrankPadLocationSHEET1HPTurbineBorescopeLocationforInspectionoftheStage1HPTBlades(LeftSide)SHEET1HPTurbineBorescopePortsforInspectionoftheStage1HPTBlades(RightSide)SHEET1HPTurbinePortsforInspectionoftheStage1HPTBladesSHEET1Stage1HPTBladeInspectionAreasSHEET1BorescopePortsSHEET1BorescopeEquipmentSHEET1Stage1HPTBladeInspectionAreasSHEET1Stage1HPTBladeInspectionAreasSHEET1Stage1HPTBladeInspectionAreasSHEET1Stage1HPTBladeInspectionAreasSHEETStage1HPTDuctSegmentInspectionLocationsSHEET1BorescopePortsSHEET13工作准备JobSet-72-00-00-941-166-A.在的ENG面板115VU上在顶部面板50VU上确保ENG/FADECGNDPWR/1(2)按钮电门的ONSubtask72-00-00-941-166-AA.SafetyOnthecenterpedestal,ontheENGpanelPutawarningnoticetolsnottostarttheMakesurethattheengine1(2)shutdownoccurrednotlessthan5minutesbeforeyoudothisprocedure.OntheoverheadmaintenancepanelMakesurethattheONlegendoftheENG/FADECGNDPWR/1(2)pushbuttonswitchisoff.PutawarningnoticetolsnottoenergizetheFADEC72-00-00-010-234- 第6B.71-13-00-010-1000EM1ENGINE--437AL1000EM2ENGINE--447AL448AR.B.GetOpenthefancowls(Ref.TASK71-13-00-010-FOR1000EM1(ENGINE--437ALFOR1000EM2(ENGINE--447AL448AR72-00-00-040-118-抑制反推控制组件TASK78-30-00-040-012)。Subtask72-00-00-040-118-AC.DeactivatethethrustWARNING:THETHRUSTREVERSERHYDRAULICCONTROLUNIT(HCU)MUSTBEDEACTIVATEDBEFOREWORKINGONORAROUNDTHETHRUSTREVERSER.FAILURETODEACTIVATETHEHCUCANRESULTININADVERTENTTHRUSTREVERSEROPERATIONANDINJURYTONELAND/ORDAMAGETO(1)Deactivatethethrustreverserhydrauliccontrolunit(HCU)(Ref.TASK78-30-00-040-012).72-00-00-010-235-D.TASK78-32-00-010-1000EM1ENGINE--451AL1000EM2ENGINE--461AL462AR.D.Openthethrustreverserhalves(Ref.TASK78-32-00-010-FOR1000EM1(ENGINE--451ALFOR1000EM2(ENGINE--461AL462AR 第772-00-00-480-081-TASK72-00-00-480-010)(Ref.Fig.CrankPadLocationSHEETSubtask72-00-00-480-081-E.Installthefootoperatedmotordriveunittothegearboxcrankpad(1)(Ref.TASK72-00-00-480-010).and(Ref.Fig.CrankPadLocationSHEETNOTE:Withthisunittherotorcanbeturned360degreestopermitcompleteinspection.4工作 72-00-00-290-116-A.(1)口标(Ref.Fig.HPTurbineBorescopeLocationforInspectionoftheStage1HPTBlades(LeftSide)SHEET1)(Ref.Fig.HPTurbineBorescopePortsforInspectionoftheStage1HPTBlades(RightSide)SHEET1)(Ref.Fig.HPTurbinePortsforInspectionoftheStage1HPTBladesSHEET(Ref.Fig.Stage1HPTBladeInspectionAreasSHEETSubtask72-00-00-290-116-A.CAUTION:THEENGINEISHOTIMMEDIAYAFTERSHUTDOWNANDCANCAUSEBURNSANDDAMAGETOTHEBORESCOPEEQUIPMENT.WAIT2-3HOURSAFTERSHUTDOWNBEFOREYOUDOABORESCOPEINSPECTION.(1)Borescopeportsare(Ref.Fig.HPTurbineBorescopeLocationforInspectionoftheStage1HPTBlades(LeftSide)SHEET1)(Ref.Fig.HPTurbineBorescopePortsforInspectionoftheStage1HPTBlades(RightSide)SHEET1)(Ref.Fig.HPTurbinePortsforInspectionoftheStage1HPT 第8SHEETThenamesofthedifferentparts,areasanddimentionalreferencesoftheStage1HPTbladesareshown.(Ref.Fig.Stage1HPTBladeInspectionAreasSHEETUsethenameswhichfollowwhenyouidentifyabladeconditionseenatborescopeinspection:Erosion:Alocalareawherematerialhasbeenremovedbycausesotherthanheatdistress.LeadingEdgeBurn-Through:Aholeintheleadingedgeopentothecoolingairpassage.Burns:Alocalareawherematerialhasbeenremovedbecauseofheatdistress.Coatingdamage:Chip,flaking,blistering,peelingoroxidationofbladeconfinedtothecoating.Trailingedgemetalloss:Aburnthroughtheconvextrailingedgewallthatcausesashorterairfoilchordlength.72-00-00-290-117-(Ref.Fig.HPTurbinePortsforInspectionoftheStage1HPTBladesSHEET1)(Ref.Fig.BorescopePortsSHEET1)TASK74-21-41-000-3.25in.(82.55mm)V02-024) 第9Subtask72-00-00-290-117-B.DoacloseupborescopeinspectionoftheStage1HPT(Ref.Fig.HPTurbinePortsforInspectionoftheStage1HPTBladesSHEET1)(Ref.Fig.BorescopePortsSHEET1)NOTE:ForageneralinspectiondotheprocedureinthenextGetaccesstotheStage1HPTbladesthroughtheIP1ignitorRemovetheignitorplug(Ref.TASK74-21-41-000-010).NOTE:Donotremovetheignitorinsert.NOTE:DonotremovetheignitorPuttheflexibleborescopeintotheguidetubeTUBE-BORESCOPEGUIDE(IAE2P16204)untiltheendoftheborescopeislevelwiththeendofthetube.Putapieceoftape(MaterialNo.V02-024)ontheborescopefiberbundle3.25in.(82.55mm)fromtheotherendoftheguidetube.Thiswillbealimitmarkontheborescopesoyouwillnotinserttheborescopetoofarandcausedamagetotheborescope.Puttheendofthetubewhichisclosetothetapemarkinthedownpositionandtheneofthetubeatarightangletotheengineaxis.InstallthetubeintotheIP1ignitorAsthetubeisputin,turnitclockwisecarefullyandconnectthefittingtotheigniterbushing.PushtheguidetubeinuntilittouchestheTurntheguidetubeclockwiseuntilitstops.Holdthetubethispositionandtightenthelockingwheeltosecuretheguidetube.NOTE:Inthisposition,theslotinthestopwillbeup.NOTE:Aneyecoverfortheeyewhichisnotusedwilldecreaseeyetension.NOTE:Anadjustableclamptosupporttheborescopewillthehandstomovetheborescopedialsandfiberbundle.NOTE:Someborescopeunitshaveclosedcircuitevisionadapters.Wehighly mendthisunit.Slowlypushintheborescopethroughtheguidetubewhileyoulookthroughtheeyepiece.Movetheborescopeendslightly,whilepushingin,andfindtheStage1HPTblades.Turntheborescopefiberbundletohelpyoulocatethestage1HPTblades.Donotpushtheborescopeinmorethanthetapemark.NOTE:Atthispoint,theborescopeisbetweentwoStage1HPTvanesandatalocationtoseetheconcavesideoftheStage1HPTblades.ExaminationoftheCAUTION:MAKESURETHATTHEBORESCOPETIPISNOTINTHE 第10OFTHESTAGE1HPTBLADESBEFOREYOUTURNTHE(a)Examinethebladesfor72-00-00-290-118-(Ref.Fig.HPTurbinePortsforInspectionoftheStage1HPTBladesSHEET(Ref.Fig.HPTurbineBorescopeLocationforInspectionoftheStage1HPTBlades(LeftSide)SHEET1)(Ref.Fig.BorescopePortsSHEET(Ref.Fig.HPTurbineBorescopeLocationforInspectionoftheStage1HPTBlades(LeftSide)SHEET1)(Ref.Fig.HPTurbineBorescopePortsforInspectionoftheStage1HPTBlades(RightSide)SHEET1)通过B3或B4口放入BORESCOPERIGHTANGLE,FLEXSCOPE(Ref.Fig.BorescopeEquipmentSHEETC.YoucanusearigidborescopetodoageneralborescopeinspectionoftheStage1HPTblades(Ref.Fig.HPTurbinePortsforInspectionoftheStage1HPTBladesSHEET1)NOTE:Foracloseupinspectiondotheprocedureintheparagraphabove.NOTE:Aneyecoverfortheeyewhichisnotusedwilldecreaseeyetension.NOTE:Removaloftheplugsatbothofthelocationswillpermityoutoexaminebothleadingandtrailingedges(1)GetaccesstotheStage1HPTbladesthroughtheB3orB4(Ref.Fig.HPTurbineBorescopeLocationforInspectionoftheStage1HPTBlades(LeftSide)SHEET1) 第11RemovethelockwirefromtheLoosenandremovetheplugandthegasketfromtheB3orB4port.(Ref.Fig.BorescopePortsSHEET1)GetaccesstotheStage1HPTbladesthroughtheT1/2LorT1/2Rports(Ref.Fig.HPTurbineBorescopeLocationforInspectionoftheStage1HPTBlades(LeftSide)SHEET(Ref.Fig.HPTurbineBorescopePortsforInspectionoftheStage1HPTBlades(RightSide)SHEET1)WARNING:MAKESURETHATTHEBLANKINGPLUGISSUFFICIENTLYCOOLBEFOREREMOVAL.THETEMPERATURESTAYSHIGHFORASHORTTIMEAFTERENGINERemovethelockwireandtheboltswhichholdthePutthePULLER,KNOCKER(IAE1P16184)intothecenterholeoftheplug.UsethepullertoremovetheplugfromtheRemovethegasketfromtheRemovetheplugfromthePutaBORESCOPE-RIGHTANGLE,FLEXSCOPEthroughtheB3orB4port.(Ref.Fig.BorescopeEquipmentSHEET1)ExaminethebladesforPutarigidborescopethroughtheT1/2LorT1/2RExaminethebladesfor72-00-00-220-151-(Ref.Fig.Stage1HPTBladeInspectionAreasSHEET在区域A或区域B上的刻痕或压痕长度大于0.2in.5.08mm)刻痕或压痕在区域AB(不包含叶片后缘尖端)内并显示金属开裂Subtask72-00-00-220-151-D.Nicksordentsontheairfoilofthestage1HPTblades(Ref.Fig.Stage1HPTBladeInspectionAreasSHEET1)Acceptwithaninspectioneach600hoursThenickordentisinareaAorareaBandislargerthan0.2in.(5.0799mm).Removetheengineinlessthan10cyclesThenickordentisinareaAorareaB(notincludingthebladetrailingedgetip)andshowssignsoftornmetalorcracks.Thenickordentcausesinternalareastoshow.Thesearewheretheairthatisusedtocooltheblade 第1272-00-00-220-152-(Ref.Fig.Stage1HPTBladeInspectionAreasSHEET上看起来像小的隆起块。这些隆起块通常是圆形或椭圆形,宽度在0.1in.(2.54mm)到0.2in.(5.08mm)之间且高度为0.005in.(0.13mm)。这些隆在区域A或区域B内的裂纹长度超出0.07in.(1.78mm)在区域A上的裂纹(不包括前或后缘跨距的内部的25％)或在区域B的裂纹合并超出0.07in.(1.78mm)。在区域C的裂纹长度大于0.10in.2.54mm机翼上的径向裂纹起始于叶尖且长度超出0.20in.5.08mm),裂纹数量在尖端区域内轴向裂纹大于0.14in.(3.56存在缺失材料从尖端径向延伸大于0.05in.(1.27mm)0.20in.(5.08mm缺失材料从尖端区径向延伸大于0.08in.(2.03mm存在缺失材料径向延伸大于0.06in.(1.52mm)且轴向裂纹大于0.12in.(3.05mm)。从烧蚀区域或烧穿区域扩展的或烧穿+裂纹的径向损伤等于或超过0.20in.(5.08mm)前缘裂纹（50%以外），并且径向裂纹小于0.15in.(3.81mm)0.24in.(6.10mm缺失材料从尖端径向延伸大于0.10in.(2.54mm尖端区域缺失材料径向延伸大于0.08in.(2.03mm)且轴向裂纹大于0.18in.(4.57mm)。从烧蚀区域或烧穿区域扩展的或烧穿+裂纹的径向损伤等于或超过0.50in.(12.70mm)前缘裂纹（50%以外），并且径向裂纹小于0.15in.(3.81mm)裂纹损伤径向超过0.70in.(17.78mm)A区裂纹（除过叶尖径向起始）不小于0.15in.3.81前缘外部50%）从烧蚀区延伸或者烧蚀+裂纹超过0.22in(5.59在区域B内的裂纹超出0.15in(3.81mm在区域B0.15in.(3.81mm)在区域C0.20in.(5.08mm 第13在区域C0.20in.(5.08mm机翼上的径向裂纹起始于叶尖且长度超出0.35in.(8.89mm)缺失材料在尖端区内径向延伸大于0.09in.(2.29mm)且轴向裂纹延伸大于0.28in.(7.11mm)。尖端区有一个长度大于0.30in.(7.62mm合并超出0.13in.(3.30mm)。Subtask72-00-00-220-152-AE.CracksontheAirfoiloftheStage1HPTBlades(Ref.Fig.Stage1HPTBladeInspectionAreasSHEET1)NOTE:Therewillbeunwantedmaterialontheairfoilbecauseofthecastingprocedureduringborescopeinspection,thismaterialwilllooklikesmallbumpsontheconcaveandconvexsurfacesoftheairfoil.Thesebumpsareusuallyroundoroval,arebetween0.1in.(2.54mm)to0.2in.(5.08mm)wideandare0.005in.(0.13mm)high.Thesebumpsareacceptable.Noactionisnecessary.NOTE:Tipzone-Loweredgeoftheuppertipcoolingholestotip.Inthiszoneacrackgoingthroughanothercrackispermitted.(1)Acceptwithaninspectioneach600hours(a)ThecrackinareaAorareaBislonger0.07in.(1.78ThecrackinareaA(thisdoesnotincludetheinner25percentoftheleadingortrailingedgespan)orareaBextendsfromaburnedarea,andthecombinationofaburnandacrackislongerthan0.12in.(3.05mm)inanydirection.Thecrackintheinner25percentoftheleadingortrailingedgespaninareaAextendsfromaburnedareaandthecombinationoftheburnplusthecrackislongerthan0.07in.(1.78ThecrackinareaCislongerthan0.10in.(2.54mm)anddoesnotextendradiallytothebladetip.ThecrackinareaCextendsfromaburnedareaandcombinationoftheburnplusacrackislongerthan0.10in.(2.54Aradialcrackontheairfoilstartsatthebladeandislongerthan0.20in.(5.08mm).Thenumberofcracksisnotimportant.Axialcrackisgreaterthan0.14in.(3.56mm)inthetipThereismissingmaterialwhichextendsgreater 第140.05in.(1.27mm)radiallyfromtheAcceptwithaninspectioneach300hoursAxialcrackisgreaterthan0.20in.(5.08mm)inthetipThereismissingmaterialwhichextendsgreater0.08in.(2.03mm)radiallyfromthe(c)Thereismissingmaterialwhichextendsgreater0.06in.(1.52mm)radiallyandisalsogreater0.12in.(3.05mm)(d)Thecrackontheleadingedge(intheouter50percentspan)extendsfromaburnedareaorburn-throughandthecombinationofaburnorburn-throughplusacrackisequaltoormorethan0.20in.(5.08mm)intheradialdirectionandthecrackislessthan0.15in.(3.81mm)intheradialdirection.Acceptwithaninspectioneach150hoursAxialcrackisgreaterthan0.24in.(6.10mm)inthetipThereismissingmaterialwhichextendsgreater0.10in.(2.54mm)radiallyfromthe(c)Thereismissingmaterialwhichextendsgreater0.08in.(2.03mm)radiallyandisalsogreater0.18in.(4.57mm)axiallyinthetip(d)Thecrackontheleadingedge(intheouter50percentspan)extendsfromaburnedareaorburn-throughandthecombinationofaburnorburn-throughplusacrackisequaltoormorethan0.50in.(12.70mm)intheradialdirectionandthecrackislessthan0.15in.(3.81mm)intheradialdirection.Removetheengineinlessthan30cyclesThecrackontheleadingedgeintheouter50percentspanextendsfromaburnedareaorburn-throughandcombinationofaburnorburn-throughplusacrackthatislongerthan0.70in.(17.78mm)intheradialdirection.ThecrackinareaA(otherthanaradialcrackthatstartsatthebladetip)isequaltoorgreaterthan0.15in.(3.81mm).ThecrackinareaA(thisdoesnotincludetheinner25percentoftheleadingortrailingedgespanoraradialcrackandburnorburn-throughontheouter50percentspanoftheleadingedge)extendsfromaburnedarea,andthecombinationofaburnplusacrackislongerthan0.22in.(5.59mm).ThecrackinareaBislongerthan0.15in.(3.81ThecrackinareaBextendsfromaburnedareaandthecombinationoftheburnplusacrackislongerthan0.15in.(3.81mm).ThecrackinareaCislongerthan0.20in.(5.08mm)anddoesnotextendradiallytothebladetip.ThecrackinareaCextendsfromaburnedareaandthecombinationtheburnplusacrackislongerthan0.20in.(5.08 第15Aradialcrackontheairfoilstartsatthebladetipandislongerthan0.35in.(8.89mm).Thecracksformclosedloopsbetweencoolingholesexceptinthetipzone.ThecrackgoesthroughothercracksexceptinthetipTheinternalcoolingpassagescanbeseenatthebladeThereismissingmaterialwhichextendsgreaterthan0.09in.(2.29mm)radiallyand0.28in.(7.11mm)axiallyinthetipzone.Thereisanaxialcrackthathasalengthgreaterthan0.30in.(7.62mm)inthetipzone.Removetheengineinlessthan10cyclesThecrackintheinner25percentofthetrailingedgespaninareaAextendsfromaburnedarea,andthecombinationoftheburnplusthecrackislongerthan0.130in.(3.30mm).Thereisacrackintheairfoilfilletradiusorcombinationofaburnandcrack.72-00-00-220-153-(Ref.Fig.Stage1HPTBladeInspectionAreasSHEET裂纹长度超过0.150in.3.81mm)和没有延伸到平台至翼面圆角半径。裂纹进入平台到机翼内圆角半径。裂纹超出0.20in.(5.08mm)且没有裂纹穿过平台到机翼内圆角半径。裂纹超出0.25in.(6.35Subtask72-00-00-220-153-F.Cracksonthetformofthestage1HPTblade(Ref.Fig.Stage1HPTBladeInspectionAreasSHEET1)NOTE:ItisacceptabletohavesmallpiecesoftheStage1HPTsealoutbetweenthereartformoftheStage1HPTbladeandtheStage1HPTairseal.Acceptwithaninspectioneach600hoursThecrackislongerthan0.150in.(3.81mm)anddoesnotgoesuptothetformtoairfoilfilletradius.Thenumberofcracksisnotimportant.Acceptwithaninspectioneach300hoursThecrackgoesintothetformtoairfoilfillet 第16Thecrackislongerthan0.20in.(5.08mm)anddoesnotgointothetformtoairfoilfilletradius.(3)Removetheengineinlessthan10cycles(a)Thecrackgoesthroughthetformtoairfoilfilletradius.Thecrackislongerthan0.25in.(6.35mm)anddoesnotgointothetformtoairfoilfilletradius.NOTE:Cracksnotacceptableintheairfoilfillet72-00-00-220-154-(Ref.Fig.Stage1HPTBladeInspectionAreasSHEET1)(Ref.Fig.Stage1HPTBladeInspectionAreasSHEET1)(Ref.Fig.Stage1HPTBladeInspectionAreasSHEET1)(Ref.Fig.Stage1HPTBladeInspectionAreasSHEET1)(Ref.Fig.Stage1HPTBladeInspectionAreasSHEET(0.6350mm)小孔，为圆形并在叶片内，是可接受的。后缘25%以内的烧蚀轴向超过0.07in.(1.78mm)但小0.11in.(2.79但小于0.20in.(5.08边缘超过0.06in.(1.52mm)。0.07in.1.78mm)前缘50%以外烧穿轴向小于0.08in.(2.03mm)，径向小0.20in.(5.080.15in.(3.81mm)且距后缘0.10in.(2.54mm)且在该区域内燃烧或腐蚀是的。（a）后缘25%以内的烧蚀轴向不小于0.11in.(2.79mm)，并且小0.15in.(3.81（b)后缘25%以上的烧蚀轴向不小于0.20in.(5.08mm)并且小0.30in.(7.62mm)(c)0.25in.(6.35mm)或切向超过0.45 第17(11.43mm)(d)前缘50%以外的烧穿不小于0.08in.(2.03mm)，轴向不小0.20in5.08mm)0.20in(5.08mm)并且径向小于0.50in.(12.70mm)。缘之下,但在下部尖端冷却排孔的上部边缘之上。0.09in.(2.28mm(a)在区域A50%以外前缘烧穿轴向小于0.20in.(5.08mm),径向0.50in.(12.70mm0.70in.(17.78mm)之间，并且尖端处的以下,径向离叶尖0.15in.(3.81mm)或以下。在区域A50%以外前缘烧穿轴向不小于0.20in.(5.08mm)，或者径向大于0.70in.(17.78mm平台上的烧痕增大到邻近平台的间隙超出0.05in.(1.27mm)或裂纹增长超出0.05in.(1.27mm)宽。这不包括后缘平台角落烧痕。0.60in.(15.24mm)(d)翼面长度内部25%的后缘上的烧痕轴向超出0.15in.(3.81mm)。(e)翼面长度25%以外的后缘上的烧痕轴向超出0.30in.(7.62外部50%翼展上前缘烧穿轴向不小于0.20in.(5.08mm)，并且前缘外部50%叶展上前缘烧穿径向不小于0.50in.(12.70mm)，径向不小于0.15in.(3.81mm)。Subtask72-00-00-220-154-AG.ErosionorBurnsontheAirfoilortform(Ref.Fig.Stage1HPTBladeInspectionAreasSHEET1)(Ref.Fig.Stage1HPTBladeInspectionAreasSHEET1)(Ref.Fig.Stage1HPTBladeInspectionAreasSHEET1)(Ref.Fig.Stage1HPTBladeInspectionAreasSHEET1)(Ref.Fig.Stage1HPTBladeInspectionAreasSHEETNOTE:TheSelectOnestage1HPTbladeshaveanouter 第18coatingandprotectivecoatingsunderneaththeceramiccoating.Erosionorchipoftheceramicoutercoatingisacceptable.Areducedinspectionintervalorengineremovalisnotnecessaryuntilburningorerosionofthebasematerialofthebladeoccursasspecifiedbelow.Thus,itisnotnecessarytoremovetheengineorreducetheinspectionintervalbecauseofcoatingloss.NOTE:Chapletholesmayormaynotexist.Theyareabyproductofthecastingprocess.Castingchapletholesaresmallholestypically0.025in.(0.6350mm)indiameter,thatarecircularinnatureandmayappearintheairfoil.ChapletholesareAcceptwithaninspectioneach600hoursTheerosionorburnontheleadingedgeismorethanonequarteroftheairfoilradiallength.Theerosionorburnsontheleadingedgehavechangedtheairfoilshape.Theerosionorburnsontheairfoilortformhavegonethroughthecoating.Thisdoesnotincludeburnsontheairfoilleadingedge,trailingedge,ortip.Theerosionorburnsonthetrailingedgeintheinner25percentspanaremorethan0.07in.(1.78mm)andlessthan0.11in.(2.79mm)axially.Theerosionorburnsonthetrailingedgebeyondtheinner25percentspanaremorethan0.12in.(3.05mm)andlessthan0.20in.(5.08mm)axially.Thisdoesnotincludethebladetip.Theburningatthebladetipinzone1isatthebottomofthelowertipcoolingrowholes.Theburningattheremainderofthetip(butnotincludingthetrailingedgetip)ismorethan0.06in.(1.52mm)radiallyandabovethetopedgeoftheuppercoolingholes.Thereismaterialthatisburnedawayormissingonthebladetrailingedgetipthatismorethan0.07in.(1.78mm)axiallyfromthetrailingedge.Theleadingedgeburnthroughbeyond50percentspanislessthan0.08in.(2.03mm)axiallyand0.20in.(5.08mm)NOTE:Thebladetrailingedgetipis0.15in.(3.81mm)radiallyfromthetipand0.10in.(2.54mm)fromthetrailingedgeandburningorerosionispermittedinthisarea.Acceptwithaninspectioneach300hoursTheerosionorburnsonthetrailingedgeintheinner 第19percentspanareequaltoormorethan0.11in.(2.79mm)andlessthan0.15in.(3.81mm)axially.Theerosionorburnsonthetrailingedgebeyondtheinner25percentspanareequaltoormorethan0.20in.(5.08mm)andlessthan0.30in.(7.62mm)axially.Thisdoesnotincludethebladetip.Theburnsonthetrailingedgetformcornerismorethan0.25in.(6.35mm)axiallyor0.45in.(11.43mm)Theleadingedgeburnthroughontheouter50percentisequaltoormorethan0.08in.(2.03mm)andlessthan0.20in.(5.08mm)intheaxialdirectionandisequaltoormorethan0.20in.(5.08mm)andlessthan0.50in.(12.70mm)intheradialdirection.Thereisvisibletformmaterialmissingduetoerosionorburning.Theburningatthetip(exceptinzone1andthetrailingedgetip)isbelowtheupperedgeoftheuppertipcoolingrowbutabovetheupperedgeofthelowertipcoolingrow.Thereismaterialthatisburnedawayormissingonthebladetrailingedgetipthatismorethan0.09in.(2.29mm)axiallyfromthetrailingedge.Doaninspectioneach150hoursTheleadingedgeburn-throughontheouter50percentspanislessthan0.20in.(5.08mm)intheaxialdirectionandintheradialdirectionisequaltoormorethan0.50in.(12.70mm)andlessthan0.70in.(17.78mm),andtheburningatthetipdoesnotextendbeyondthefirstrowofcoolingAtthetrailingedge-Ifthereismissingorburned-awaymaterialthat0.50in.(12.70mm)orlessintheaxialdirectionfromthetipand0.15in.(3.81mm)orlessintheradialRemovetheengineinlessthan30cyclesTheleadingedgeburn-throughontheouter50percentspanisequaltoormorethan0.20in.(5.08mm)intheaxialdirectionorequaltoormorethan0.70in.(17.78mm)intheradialdirection,andtheburningatthetipdoesnotextendbeyondthefirstrowofcoolingholes.Removetheengineinlessthan10cyclesTheerosionorburn(inanylocationotherthantheouter50percentspan)letsinternalareasandwallsshow.Theinternalareasarewheretheairthatisusedtocoolthebladegoes. 第20Theburnonthetformincreasesthegaptotheadjacenttformtomorethan0.05in.(1.27mm)oracrackhasincreasedtomorethan0.05in.(1.27mm)wide.Thisdoesnotincludethetrailingedgetformcornerburning.Theburnonthetrailingedgetformcornerismore0.40in.(10.16mm)axiallyor0.60in.(15.24mm)Theerosionorburnsonthetrailingedgeintheinner25percentspanareequaltoormorethan0.15in.(3.81mm)Theerosionorburnsonthetrailingedgebeyondtheinner25percentspanareequaltoormorethan0.30in.(7.62mm)axially.Thisdoesnotincludethebladetip.TheburningatthetiphasextendedtocompleyincludethelowertipcoolingrowholesorburnthroughatthetiphasTheleadingedgeburnthroughontheouter50percentspanequaltoormorethan0.20in.(5.08mm)intheaxialdirection,andtheburningatthetipextendsbeyondthefirstrowofcoolingholes.Theleadingedgeburn-throughontheouter50percentspanisequaltoormorethan0.50in.(12.70mm)intheradialdirection,andtheburningatthetipextendsbeyondthefirstrowofcoolingholes.Theinnerwall(asyoucanseethroughtheburn-throughholeintheouter50percentspanoftheleadingedge)hasburnsorhasbeenbreached.Atthetrailingedge-Ifthereismissingorburned-awaymaterialequaltoormorethan0.50in.(12.70mm)intheaxialdirectionandequaltoormorethan0.15in.(3.81mm)intheradialdirection.72-00-00-220-155-H.HPT第1(Ref.Fig.Stage1HPTDuctSegmentInspectionLocationsSHEET360定义:识别仪检查处可见的HPT1级管道扇形体部份的状况时,使用下 第210.05in.(1.27mm),则认为是烧穿。Subtask72-00-00-220-155-H.ExaminetheStage1HPTDuct(Ref.Fig.Stage1HPTDuctSegmentInspectionLocationsSHEET1)NOTE:Atthesubsequentinspection,youmustdoa360degreesborescopeinspectiontoidentifytheworstductsegmentcondition.Subsequentinspectionsofanyductsegmentdistressmustusethesefindings.SEEATTAENTTABLEFORDETAILS(A320-725000-I1-1-C-NOTE:Ifdistressrequiringareducedinspectionisidentifiedwitharigidborescope,thena360degreeborescopeinspectionmustbedoneatthenextinspectiontoidentifytheworstductsegmentcondition.Follow-oninspectionsofductsegmentdistressshouldbebasedonthesefindings.Definitions:UsethenameswhichfollowwhenyouidentifyHPTStage1DuctSegmentssegmentconditionseenatborescopeErosion:Alocalareawherematerialhasbeenremovedbycausesotherthanheatdistress.Burns:AlocalareawherematerialhasbeenremovedbecauseofheatBurn-through:Aholeintheductsegmentgaspathsideopentothebehindit.Acrackwiderthan0.05in.(1.27mm)isconsideredaburn-through.Cracks:Alinearopeningthatcaneasilybeseenandwhichcancausethema