TN2011-A320-32-001空客飞机MICHELIN-轮胎更换标准

上海维修基地技术支援编制编号NumberTN2012-A320-32-001参考文件REFDocSL001-06a;AMM32-41-00-210-002A；AircraftTireCare&ServiceManual题目Subject空客飞机MICHELIN轮胎更换标准内容CONTENT现国航空客机型飞机选装的均是MICHELIN子午线轮胎，其轮胎结构如下：上海维修基地技术支援编制空客飞机维修手册AMM32-41-00-210-002A程序规定了轮胎正常磨损情况下的更换标准：在基地站见线（保护帘布层）即需更换，在非基地站则可以延迟到下一个基地站更换。考虑到保证航班正点率及基地航线放行的需要，根据MICHELIN轮胎的厂家服务信函WEARREMOVALCRITERIA（SL01-06a）特制定上海维修基地执管飞机的MICHELIN轮胎的更换标准：一、正常磨损：1、短停，在任一特定的区域，有1/8圆周长的保护帘布层暴露－见线，宽度前轮不超过1inch，主轮不超过2.5inches，可以继续使用。2、航前和航后，根据空客AMM32-41-00-210-002A的标准执行。即：在基地站见线（保护帘布层）即需更换，在非基地站则可以延迟到下一个基地站更换。3、外站无更换轮胎条件的特殊情况下，经技术支援批准可以执行超差放行标准（超过1/8圆周长的保护帘布层暴露，但未到达紧固帘布层，可以在牺牲轮胎翻修的情况下，继续飞行不超过10个起落）。二、非正常磨损、损坏的更换标准。非正常磨损的情况较多，必须严格按照空客手册AMM32-41-00-210-002A的标准执行。为帮助一线维修人员对各种非正常的磨损状况的理解，特作以下说明。1、局部磨损：刹车锁死或大角度转弯是造成此类磨损的主要原因。更换标准：•给定的1/8圆周长的范围内,胎面沟槽的深度差大于等于2.5毫米，更换。•暴露出胎面保护帘布层—见线•造成不可接受的抖动上海维修基地技术支援编制2、不对称磨损：更换标准：•遵循正常磨损的标准，不见线可以继续使用。•有条件，建议调位使用。3、胎肩磨损：通常由于轮胎压力相对于飞机总重不足引起。更换标准：•遵循正常磨损的标准，不见线可以继续使用。•当胎肩已经磨平，轮胎中间的沟槽深度大约3毫米时，应重新调整轮胎压力。4、胎面割伤：更换标准：A.当割伤暴露或刺穿紧固帘布层，拆下轮胎B.当割伤横跨两个沟槽，拆下轮胎.C.当割伤横向发展时，拆下轮胎。D.异物的直径大于9.5mm.拆下轮胎上海维修基地技术支援编制5、沟槽内的横向割伤：更换标准：•大于6MM更换。6、胎面刺伤：更换标准：•当割伤暴露或刺穿紧固帘布层，拆下轮胎。7、凸起和分层：更换标准：•立即更换上海维修基地技术支援编制8、鱼鳞纹、局部脱落：更换标准：•暴露出胎面保护帘布层面积大于6平方厘米。9、沟槽内的裂缝：更换标准：•基地航后，当裂缝暴露出6mm长的保护帘布层将轮胎拆下。•外站，如果暴露出的连线最长不超25mm,轮胎可以等到飞回基地后更换(小于6个航段)。编写Prep.by陈波批准Approve叶剑元日期Date2012-07-06ManufactureFrançaisedesPneumatiquesMICHELIN63040ClermontFerrandCEDEXFranceSERVICELETTER01-06aWEARREMOVALCRITERIADate:09August2002Numberofpages:1Revised:09August2002SUBJECT:RecommendedWearRemovalCriteria-AircraftTiresTIRESAFFECTED:ThisserviceletterisapplicabletoallmainandnoselandinggearMichelinmanufacturedaircrafttiresinserviceonfullycertifiedaircraft.REMOVALCRITERIA:PertheMichelinAircraftTireCareandServiceManual,thetireshouldberemovedfromservicewhenthewearlevelreachesthebottomofanygroovealongmorethan1/8ofthecircumferenceonanypartofthetread,orifthetreadreinforcingplyisexposedformorethan1/8ofthecircumferenceofthetireatanygivenlocation.Michelinnoselandinggeartiresmayhaveamaximumwidthof1inchofexposedcordoverthislengthatthefastestwearinglocation.Michelinmainlandinggeartiresmayhaveamaximumwidthof2.5inchesofexposedcordoverthislengthatthefastestwearinglocation.Tiresreachingthiswearpointonanaircraftataremotestationcanmakeareturn-to-baseflight(s)understandardoperatingconditionswithoutsacrificingretreadabilityofthecasing.Afterhavingreachedtheestablishedremovalcriteria,anytirenotplannedforretreadingcancontinueinserviceuptotenflightsoruntilthefirstappearanceofcasingplycords(biastire)orofbeltplycords(radialtire),basedonthefastestwearinglocationwithoutasafetyconcernunderstandardoperatingconditions.GregFelderProductEngineeringWorldWideDirectorReinerOttProductEngineeringEMARegionMichelinAircraftTireCompanyP.O.Box19001Greenville,SouthCarolinaSERVICELETTERSL2005-01CutandPunctureLimitsDate:Feb.28,2010Pages:1of6Rev:07CUTANDPUNCTURELIMITSTABLE(CL&LL)Subject:TreadDamageLimitsTableforAircraftTiresSize:Thistablecoversallsizeslistedintheattachedtableswheretheselimitshavebeenestablished.PartNumber:ThistablecoversallPartNumberslistedintheattachedtableswheretheselimitshavebeenestablished.Applications:Allaircraftwherethelistedsizesandpartnumbersareapplied.Information:•Cutsorpuncturesnotreachingthefabriccordlayers:FollowtheMichelinAircraftTireCareandServiceManualcriteria.•Cutsorpuncturesexposingorpenetratingthefabriccordlayers:Tireswithcutsorpuncturesinthetreadareawhichreachthedepth(CL)orlength(LL=greatestlengthofcut)limitsspecifiedinthefollowingtable,shouldberemovedfromservice.•Puncturesexposingorpenetratingthefabrictreadbeltlayers:Tireswithpuncturesexceeding9.5mm/0.375”indiametershouldberemovedfromservice._______________________________________________________Writtenby:MarionDeWittApprovedby:RomualdHoudouxTechnicalAccountManagerAircraftTireOETechnicalSupportManagerMichelinAircraftTireCompanyP.O.Box19001Greenville,SouthCarolinaSERVICELETTERSL2005-01CutandPunctureLimitsDate:Feb.28,2010Pages:2of6Rev:07CutandPunctureLimits•Cutandpuncturedepthlimits(CL)aredefinedwithreferencetothebottomofthenearesttreadgroove.Theyaredefinedinthreeunits:-thenumberofdamagedbeltpliesforradial(thisdoesnotincludetheProtectorBeltPly)ordamagedbodypliesforbias(thisdoesnotincludethetreadreinforcingplies)-thedepthinmillimeters(mm)-thedepthininches(in.)•Cutlength(LL)limitsareexpressedinmillimetersandinches.CUTCutorpuncturelengthLLCutorpuncturedepthmeasurementdatumpointCutorpuncturedepthCLMichelinAircraftTireCompanyP.O.Box19001Greenville,SouthCarolinaSERVICELETTERSL2005-01CutandPunctureLimitsDate:Feb.28,2010Pages:3of6Rev:07CommercialandRegionalRadialTiresTireDescriptionDamageLimitsCutLimit(CL)(cutsandpunctures)LengthLimit(LL)(cuts)TireSizePRPartNumberTotalnumberofPlies*NbofPlies*mmin.mmin.435x190R510M096014130.12150.5914.5x5.5R6/M021024130.12150.59/M083014130.12150.5916x6.0R612M172015130.12150.5917.5x5.75R8/M024013130.12150.59/M133013130.12150.5923.5x8.0R1214M137014150.20150.5924x7.7R1016M182014150.20150.5926x6.6R14/M013014150.20150.5914M084014150.20150.5927x7.75R1512M128014150.20200.7929x7.7R