WOHA33_143516_76_EOCOM-72-0185

香港airlines limited香港航空03110-01香港航空med香港airlines limitedWO否/操作命令号SEQ常开/序号Woha 3315 _ 76 _ 16适航命令(AD) DIC143516标题check and replace affected trent 700 hpt/ipt sealing sleeve and oil tube per sb72-aj 035McdRev/制造商卡修订日期标题根据SB 72-AJ035检查并更换受影响的Trent700 HPT/IPT盒式磁带衬套和滑动油管A/C/飞机号码/群组EO JC No./EO工作卡EO JC Rev/工作卡版本工作区/工作区滑雪ll/一种Man Hour/工作时间BLNV/NEOCOM-72-0185R00电源/PowerplantMDIC16:00Baseline/标准操作员EO/操作员EOEO Rev/EO版本工作类型/工作类别Threshold/第一次检查Interval/重复检查ASB 72-AJ035、AD 2015-0105EOCOM-HKG72-0062R00写入/写入修订/审核Approved/approved2015-06-102015-06-112015-06-11Accomlis签名完成完成日期完成日期车站维修站PVGREASON DESCRIPTION/原因和说明世界飞机共发生11起HPT/IPT内部供油管(EIPC 72-51-24，02-281)损坏，导致SB 72-F227配置后的引擎计划外分离。供油管接头的套筒是可滑动设计，在衬套和燃油供应管之间的滑动被阻止，在每个引擎运行结束后，涡轮冷却后，通过衬套对供油管施加压力，然后在引擎启动后，涡轮墨盒的热上升导致滑动油管套管通过拉力反复作用，从而在供油管上产生低周疲劳裂纹。调查显示，衬套(EIPC 72-51-23、01-220)的三个供应商中，a供应商生产了一些内径小于纸张大小的衬套，阻止了此部分缺陷衬套和滑动细配管的滑动。所有供应商为a生产的布什运行NMSB 72-AH673完成了更换。供应商b的衬套(EIPC 72-51-24、02-280)最近对一起安装的事件进行了调查，结果显示衬套的外径大小大于纸张大小，这可能会阻止衬套和油供应管之间的正常滑动。为了保证飞行安全，保持发动机的可靠性，发出本EO，检查受影响发动机的衬套放置，并进行精密更换。there have been a total of eleven unplanned engine removals caused by fracture of the HP/IP turbine support internal oil feed tube(eipc 72 thermal growth and contrction of the turbine casing relative to the oil tube，During the heating and cooling phase of the flight cycle，appling the heating and cooling phase of the flight cycle which can cause binding at the sliding joint . all supplier a sealing sleeve have been replaced through accomlis ment of nmsb 72-ah 673 . following in order to maintain flight safety and engine relieability，This EO is released to inspect the sealing sleeve on the affected engines for the affected engines工具/工具Tools neceary/必备工具ITEM项目P/N件号DESCRIPTION名字EQTP类型QTY数量应用程序适用性Conditions note交换信息和注意事项1U.53H3Adaptor土1全部无2后55248PUMP-HAND，HYDRAULIC TRU土1全部无3U.49P6Puller土1全部无4U.49AMSlide Hammer土1全部无5ZGHR6043吸尘器-飞利浦HR6043土1全部无Tools if neceary/视觉化工具ITEM项目P/N件号DESCRIPTION名字EQTP类型QTY数量应用程序适用性Conditions note交换信息和注意事项1ZGCJDZ电钻-冲击220V450W土1全部查看情况/On condition2Hu 40169-1Cutting Tool土1全部查看情况/On conditionPARTS AND MATERIAL/航空材料note : operator must get and install the parts that correspond to the relative work order no注：根据工作单编号，要求工人严格接收预定的航空航天安装机PARTS AND MATERIAL NECESSARY/必备航空材料ITEM项目P/N件号DESCRIPTION名字EQTP类型QTY数量应用程序适用性Conditions note交换信息和注意事项1OMAT617开发者CH1全部无2OMAT238电线AS1全部Interchangeable with OMAT2/1423OMAT1011ENGINE OILCH1全部无4KH28324External Oil Feed TubeAS1全部无5KH28323Oil Feed Sealing SleeveAS1全部无PARTS AND MATERIALIF NECESSARY/视觉航空ITEM项目P/N件号DESCRIPTION名字EQTP类型QTY数量应用程序适用性Conditions note交换信息和注意事项PARTS INFORMATION/部件信息：Note : the component in pn，sn form is need to do periodic maintenance。for the return repair or retrofit，the form is PN，Sn of The removed component . and The PN-in，Sn-in would be written according TT注：“引出序号”、“序列号”列表示需要定期执行维修操作的装配件。对于需要更换和退回操作的部件，此列表示分隔符、序列号信息。完成后，安装引出序号和序列号列。输入相关的产品安装信息库信息。对于内部工作(例如计量、测试等)，此栏表示内部工作组合、序号资讯，并在工作完成后以斜线绘制件号和序号。PN/引出序号SN/序列号ATA/章节区域/区域FIN/代码位置/安装位置TRENT772B-60/164202372410A3300002Lh引擎PN-IN编件号SN-IN包含序列号removal reason and component task request拆卸部件的原因和处理部件的要求TASK NOTE工作注意事项IMPORTANT NOTE:in the event of any discrepancies between the Chinese instruction and the English instruction，the English procedure should previol。record additional work/findings(if applicable)reference nocertificate of release to service(* tick as appropriate # different crews should perform the work on each of the systems)Certies that the work specified，except as otherwise specified，was carried out in accordance with hkar-145And in respect to that work，the air fcraft/airb craft components are consired ready for release to service。r hka approval no : ai/135/706 *hnat approval no . jmm 076，d 3039 *hnat approval no . jmm 047，dnatr hnat approval no . jmm 049，d 500033 *casl approval no : ai/101/798 *tae co approval no . Dai/r haeco approval no : Dai/1/853 *siaec approval no : awi/01 *star co appro