WOHA33_26536_18_EOCOM-72-0219

Hong Kong Airlines Limited香港航空有限公司03110-01Hong Kong Airlines MEDHong Kong Airlines LimitedWO NO/工作指令号SEQ NO/序列号WOHA332653_18_6DIC 26536TitleRepeated Borescope Inspection Of A330_Trent700 High-life HP Tubine BladesMcd&Rev/厂家工卡&修订日期标题重复孔探检查A330_Trent700高寿高压涡轮叶片A/C/飞机号/组别EO JC No./EO工卡EO JC Rev/工卡版本Workarea/工作区域Skill/工种Man Hour/工时BLNV/NEOCOM-72-0219R01动力/PowerplantMDIC/NDT02:00/03:00Baseline/依据Operator EO/营运人EOEO Rev/EO版本Work Type/工作类别Threshold/首检Interval/重复检AMM 72-00-00-200-814-AEOCOM-HKG72-0070R014260CY300CYWritten/编写Reviewed/审核Approved/批准2017-03-312017-04-042017-04-05Accomplished完工签署Complete Date完工日期Station维修站PVGREASON & DESCRIPTION/原因及描述近期世界TRENT700发动机机队报告几起因HPT转叶断裂而造成的发动机空停或者 中断起飞,而且事件发动机呈现明显的高寿特征。为保障飞行安全，保持发动机 可靠性，颁发本EO对受影响TRENT700发动机执行HPT转叶孔探检查。Several engine in-flight shut down and aborted take-off events due to HPT blade fracture have been reported among global TRENT700 fleet,event engines show obvious high life feature,in order to maintain flight safety and engine reliability, this EO is released to carry out HPT blade borescope inspection on the affected TRENT700 engines.注释:R01版改版内容: 修改控制信息，增加工卡参考图示。Note:Change in R01 Revision:Amend control information,add reference figure in job card .TOOLS/工具TOOLS NECESSARY/必须工具ITEM项目P/N件号DESCRIPTION名称EQTP类型QTY数量APP适用性Conditions note互换信息及备注1HU40025ADAPTOR - ROTATE HP SYSTEM, BREATHER ROTORTO1ALL无2FK24273COVER - COMMON NOZZLE ASSEMBLYTO1ALL无3HU80955IMMOBILISERTO1ALLHU44525-1 is alternative4HU55148PUMP - HAND, HYDRAULIC TRUTO1ALL无TOOLS IF NECESSARY/视情工具ITEM项目P/N件号DESCRIPTION名称EQTP类型QTY数量APP适用性Conditions note互换信息及备注PARTS AND MATERIAL/航材NOTE:OPERATOR MUST GET AND INSTALL THE PARTS THAT CORRESPOND TO THE RELATIVE WORKORDER NO.注释：请工作者严格按照工作指令号领取预定的航材装机PARTS AND MATERIAL NECESSARY/必须航材ITEM项目P/N件号DESCRIPTION名称EQTP类型QTY数量APP适用性Conditions note互换信息及备注1KB27123(33a1)SEALAS1ALL无2OMAT4/62Hight temperature anti-seize compoundCH1ALL无PARTS AND MATERIALIF NECESSARY/视情航材ITEM项目P/N件号DESCRIPTION名称EQTP类型QTY数量APP适用性Conditions note互换信息及备注11015612SEALAS1ALL视情/On condition21016400SEAL FACE CI0009-03-12-2SPAAS1ALL视情/On conditionPARTS 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 to new parts after finish. For the non- returns(such as weight, test)，the form is PN,SN of the on-wing maintenance component. And fill the PN-IN,SN-IN with bias after finish.注释：件号、序号栏指需要定期执行维修工作的部件。对于要求更换拆下返厂工作的部件，该栏指拆下件、序号信息。完成工作后装上件号和序号栏请填写相关装机件信息；对于在位执行工作的（如称重、测试等），该栏指在位工作部件件、序号信息，完成工作后装上件号和序号请用斜线画去。PN/件号SN/序号ATA/章节ZONE/区域FIN/代码LOCATION/装机位置FK26893LDRCZ2018972420A3300003RH ENGINEPN-IN装上件号SN-IN装上序号REMOVAL REASON AND COMPONENT TASK REQUEST拆件原因及其部件工作要求TASK NOTE工作注释IMPORTANT NOTE:In the event of any discrepancies between the Chinese instruction and the English instruction, the English procedure should prevail.Record Additional Work/Findings(If Applicable) Reference No. Certificate of Release to Service (* Tick as appropriate # Different crews should perform the work on each of the systems)Certifies that the work specified, except as otherwise specified, was carried out in accordance with HKAR-145and in respect to that work, The aircraft / aircraft components are considered ready for Release to Service. HKA Approval No: AI / 135 / 706 * HKE Approval No: AI /218/1215, JMM 133 * HNAT Approval No.: D.101115, JMM 047* CASL Approval No: AI / 101 / 798 * AMECO Approval No.: D.101131, JMM 001* HNAT- North West Approval No.: D.500023, JMM 049 * HAECO Approval No: DAI / 1 / 853 * SMECO Approval No.: D.400009, JMM 081* HNAT- YN Approval No.: D.4108, JMM 134 * TAECO Approval No.: DAI / 89 / 1295 * CEA Approval No.: D.200002, JMM 112 * HNAT Approval No.: D.3039, JMM 076 * THAECO Approval No.: D.101661, JMM 124 * CEA-Jiangsu Approval No.: D.200047, JMM 117 * SPRING Approval No.: D.200081, JMM 121 * SIAEC Approval No: AWI / 01 * STARCO Approval No.: D.200078,JMM 039* GAMECO Approval No.: D.300001, JMM 006* THAI Approval No.: AI / 147 / 0910 * Other: * Signature:_ Authorization No.:_ Date:_工卡Job card:EOCOM-72-0219TITLERepeated Borescope Inspection Of A330_Trent700 High-life HP Tubine BladesPerfInsp标题重复孔探检查A330_Trent700高寿高压涡轮叶片工作者检查者警 告：在发动机关车后进行发动机部件的维护工作必须小心烫伤。发动机部件的余热会保持将近1小时。WARNING: YOU MUST BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE IS SHUTDOWN. THE ENGINE PARTS CAN STAY HOT FOR ALMOST 1 HOUR.警 告：不戴劳保手套不能接触发动机未冷却部件，否则会造成烫伤。若发生烫伤，将烫伤部位浸在凉水中10分钟，然后寻求医疗救治。WARNING: YOU MUST NOT TOUCH HOT PARTS WITHOUT APPLICABLE GLOVES. HOT PARTS CAN CAUSE INJURY. IF YOU GET AN INJURY, PUT IT IN COLD WATER FOR 10 MINUTES. THEN GET MEDICAL AID.注 意: 为减小由于维护不当所造成的双发同时空停、失去动力或工作异常的风险，特建议工作者不要在同一时段内对同一架飞机的两台发动机进行维护工作，若上述情况无法避免，应采取相应的控制措施以保证工作者严格按照此EO的要求来完成维护工作。CAUTION: IN ORDER TO REDUCE THE POTENTIAL FOR MULTIPLE ENGINE IN-FLIGHT SHUT DOWN, POWER LOSS, OR OTHER ANOMALY DUE TO MAINTENANCE ERROR, IT IS RECOMMENDED THAT OPERATORS AVOID PERFORMING MAINTENANCE ON MULTIPLE ENGINES INSTALLED ON THE SAME AIRCRAFT AT THE SAME TIME. IF IT IS NOT POSSIBLE TO AVOID MAINTENANCE ON MORE THAN ONE ENGINE AT THE SAME TIME, IT IS RECOMMENDED THAT ADDITIONAL CONTROLS ARE APPLIED IN ORDER TO ENSURE THAT MAINTENANCE TASKS HAVE BEEN COMPLETED AS DEFINED IN THIS EO.1. 按AMM TASK 72-00-00-200-814-A接近和拆除孔探发动机HPT转叶的堵头。Access and remove the borescope plug of engine HPT blades in accordance with AMM TASK 72-00-00-200-814-A. DIC 2. 按AMM TASK 72-00-00-200-814-A执行发动机HPT转叶孔探检查。Perform the borescope inspection on the engine HPT blades in accordance with AMM TASK 72-00-00-200-814-A.注 意：检查时特别关注HPT转叶根部和叶间平台以及叶片前缘的不正常情况，通常叶片断裂根源于此(见图2 b, c, d)。CAUTION: Pay particular attention to the abnormal status on the HPT blade root and inner platform and blades leading edge,crack is often originated from there (Ref to Figure 2 b, c, d). 注 释1：图1是HPT转叶平台以下的典型硫化腐蚀或者损伤。NOTE1: Typical sulphidation corrosion or damage feature under HPT Blade platform shows in Fig 1.注 释2：图2是HPT转叶平台以上的一些典型损伤。NOTE2: Typical damage feature above HPT Blade platform shows in Fig 2. 3. 按AMM TASK 72-00-00-200-814-A安装拆下的孔探发动机HPT转叶的堵头，并恢复发动机到可用状态。Install the off borescope plug of engine HPT blades in accordance with AMM TASK 72-00-00-200-814-A, and restore the engine to serviceable conditon. DIC4. 填写并反馈技术文件反馈单。Complete and feedback the Feedback Form. 图 1.a HPT转叶平台以下的典型硫化腐蚀或者损伤Fig 1.a Typical sulphidation corrosion or damage feature under HPT Blade platform图 1.b HPT转叶平台以下的典型硫化腐蚀或者损伤Fig 1.b Typical sulphidation corrosion or damage feature under HPT Blade platform图2.a HPT转叶平台以上的一些典型损伤Fig 2.a Typical damage feature above HPT Blade platform图2.b HPT转叶平台以上的一些典型损伤Fig 2.b Typical damage feature above HPT Blade platform图2.c HPT转叶平台以上的一些典型损伤Fig 2.c Typical damage feat