不符合品控制程序（Nonconforming Product Control Procedure）

1、修訂履歷 Revision History修訂日期Date版本Rev.修訂內(nèi)容Updated Content作者Originator備注Remark2011,5,23AFirst releasedSummer制作Prepared By: 審核Checked By: 批準(zhǔn) Approved By:日期Date: 日期Date: 日期Date: PURPOSE 目的To define the process for controlling products or components suspected of not meeting: specification, print or other c

2、ontractual requirements，as well as the nonconforming process. 本程序定義了控制可能與規(guī)格、印刷或其他合同要求不符合之產(chǎn)品或零件的過(guò)程,及其不合格過(guò)程的控制過(guò)程。 Application 適用范圍 The nonconforming products or components generally include the followings: 不合格品通常包括如下幾個(gè)方面： a. Incoming (Verifications/Inspections/Audits)來(lái)料(驗(yàn)證/檢驗(yàn)/稽核發(fā)現(xiàn)的)；b. In-Process (Ope

3、rator, Auditor)半成品(作業(yè)員，稽核員發(fā)現(xiàn)的)；c. Finished Goods成品；d. Customer Returns客退品。3.0 Definition定義a. RMA = Return Material Authorization (electronic)b. MRB = Material Review Board (electronic)c. CAPA = Corrective & Preventative Action (electronic) 4.0 Reference參考文件4.1WI-QA-0002WI for Incoming Inspection Pla

4、n來(lái)料檢驗(yàn)WI-QA-0024 WIP for In-process, production Inspection 制程和產(chǎn)品檢驗(yàn)指導(dǎo)4.3 WI-QA-0027WI for Production Identification & Traceability 產(chǎn)品標(biāo)簽與追溯作業(yè)指導(dǎo)書(shū)WI-QA-0016 WI for Customer Complaints and Product Return客戶抱怨和產(chǎn)品退貨作業(yè)指導(dǎo)書(shū) WI-QA-0028 WI for MRB MRB作業(yè)指導(dǎo)書(shū) 4.6 QP-853 Corrective and Preventive Actions Procedure糾正和

5、預(yù)防措施程序5.0 Responsibility職責(zé) General speaking, the person who discovers the nonconforming products is responsible for preparing the MRB reports. Nonconforming of WIP/F/G on line are by production; incoming and Customers complaint are by QA; ECN and design by PE; overmolding parts by molding department

6、;PMC charges the dead stock, shelf life expiration and others.通常發(fā)現(xiàn)不良品者有責(zé)任準(zhǔn)備MRB報(bào)告。制程不良(物料, 半成品/成品)由生產(chǎn)負(fù)責(zé), 來(lái)料,客訴不良由QA負(fù)責(zé),產(chǎn)品設(shè)計(jì)變更/設(shè)計(jì)問(wèn)題引起由PE負(fù)責(zé). 注塑部負(fù)責(zé)overmolding零件;呆料/長(zhǎng)期庫(kù)存/超出使用壽命等由PMC負(fù)責(zé); MRB which consists of (but not limit to) QA , Production, Manufacture Engineering , Production Engineering, PMC, Soucing(

7、C/S), Finance and Operation Manager, are responsible for reviewing, evaluating and disposing nonconforming products, GM need to review and give comment if cost of failure is larger than 5,000 RMB, MRB Signature and Follow up Flow as Attachment 1.MRB由QA、生產(chǎn)、制工,工程、PMC經(jīng)理、采購(gòu)部、財(cái)務(wù)和運(yùn)作經(jīng)理組成，負(fù)責(zé)對(duì)不良品進(jìn)行判定, 當(dāng)失效金額大

8、于5,000元人民幣,總經(jīng)理需要審核;MRB會(huì)簽流程見(jiàn)附件1. QA Engineer will review the nonconforming materials and make the proposed disposition after inspection.QA 工程師檢查不良品后對(duì)其作出適當(dāng)?shù)奶幚硪庖?jiàn)。5.4 MRB final disposition result follow up responsibilities: RTV/Rework by Vendor charged by Sourcing, Rework, Sorting(By vendor or on line)

9、by PMC, Scrap by Store; Deduction on RTV and rework/sorting cost by Finance.MRB最終結(jié)論跟蹤責(zé)任：采購(gòu)負(fù)責(zé)RTV/供應(yīng)商返工，PMC負(fù)責(zé)安排產(chǎn)線重工,挑選使用，倉(cāng)庫(kù)負(fù)責(zé)報(bào)廢，退貨，返工挑選扣款由財(cái)務(wù)執(zhí)行。6.0 Procedure 程序6.1Nonconforming found by IQC 來(lái)料不良品Nonconforming material found by QC inspector during incoming inspection is identified with “Rejection” label

10、. The nonconforming material is transferred to rejection area by storekeeper, QC reported to the QA Engineer with defective samples (if any) . Then the QA Engineer convenes MRB and call PE, sourcing, PMC & Production and others (if necessary) discussing the disposition of the nonconforming products

11、if QA engineer cant make a decision, otherwise, QA engineer have access to accept the nonconforming material if the nonconformity doesnt affect the using of function. QC檢驗(yàn)員在檢查過(guò)程中發(fā)現(xiàn)來(lái)料不良，貼 “Rejection”標(biāo)簽明示，倉(cāng)庫(kù)管理員將不良轉(zhuǎn)移到不良品區(qū)域，QC帶上不良樣品報(bào)告QA工程師，如果QA工程師不能對(duì)不良品做出判斷,則QA工程師主持MRB并召集產(chǎn)品相關(guān)人員包括PE/采購(gòu)/PMC/生產(chǎn)/或其它有必要部門(mén)一起討

12、論如何處理,否則,如果不合格品不會(huì)影響產(chǎn)品使用功能, QA工程師 有權(quán)判定來(lái)料是否合格。6.1.2The QA Engineer makes proposal disposition of the nonconforming material/product on MRB area of IIR (incoming inspection report). The disposition made can be:QA工程師處置不良來(lái)料，處理結(jié)果如下： UAI( the material is used as it is ), The IIR must be countersigned by QA

13、/PE /ME/PROD . UAI label is used by QC and passed the material to the store.討論決定特采，相關(guān)人員QA/PE/ME/PROD在IIR上會(huì)簽，QC貼UAI標(biāo)簽;Rework/Sorton line”, MRB decide the possibility whether the material is rework or sort. The IIR must be countersigned by QA/SR/PMC/PROD. The nonconforming material is transferred to r

14、ejection area by storekeeper and identified in Rework/Sort label by QC, PMC arranges Rework or Sort.來(lái)料如產(chǎn)線判返工/挑選，QA/PE/SR/PMC/PROD在IIR上會(huì)簽，倉(cāng)庫(kù)管理員將不良材料轉(zhuǎn)移到拒收區(qū)域, QC 在來(lái)料上貼相應(yīng)標(biāo)簽,PMC安排返工/挑選。Rework/Sortby supplier”, MRB decide the possibility whether the material is rework or sort. The IIR must be countersigne

15、d by QA/SR/PMC/PROD. The nonconforming material is transferred to rejection area by storekeeper and identified in Rework/Sort label by QC, Sourcing arranges supplier Rework or Sort.來(lái)料需要供應(yīng)商來(lái)我們產(chǎn)線判返工/挑選，QA/SR/PMC/PROD在IIR上會(huì)簽，倉(cāng)庫(kù)管理員將不良材料轉(zhuǎn)移到拒收區(qū)域, QC 在來(lái)料上貼相應(yīng)標(biāo)簽, 采購(gòu)安排供應(yīng)商到廠返工/挑選。 If Rework/Sorton line”, produ

16、ction need finish the IIR full check result includes quantity of OK & NG parts,and work hours spent. QC should check the OK/NG products, stick PASS label on OK materials, RTV label on NG materials,and update the MRC sheet, store has the OK materials in warehouse, ; If “Rework/Sort-By supplier, QC wi

17、ll re-inspect the OK products, stick PASS label on OK materials, RTV label on NG materials,and update the MRC sheet, store has the OK materials in warehouse.來(lái)料如產(chǎn)線判返工/挑選, 則產(chǎn)線需完成IIR上最終結(jié)果包括合格品和不合格品的數(shù)量和所用工時(shí), QC負(fù)責(zé)再檢, 合格品則貼上合格標(biāo)簽, 不合格品貼上RTV標(biāo)簽,并且更新MRC單上的數(shù)量,倉(cāng)庫(kù)負(fù)責(zé)對(duì)合格品入庫(kù),不良品則由采購(gòu)開(kāi)退貨單; 如供應(yīng)商返工或挑選,則QC負(fù)責(zé)再檢OK品, 合格品則貼

18、上合格標(biāo)簽, 不合格品貼上RTV標(biāo)簽,并且更新MRC單上的數(shù)量,倉(cāng)庫(kù)負(fù)責(zé)對(duì)合格品入庫(kù),不良品則由采購(gòu)開(kāi)退貨單;Scrap - some samples may scrap after inspection/testing. 檢查和測(cè)試后樣品可以報(bào)廢?！癛TV”-the nonconforming material return to vendor. The IIR must be countersigned by QA/SR/PMC, RTV” label is used by QC. and the material is passed to the Reject Area. The Sou

19、rcing engineer issues the Return To Vendor Notice and arranges for returning the material to the vendor.來(lái)料決定退回供應(yīng)商(包括全檢/挑選之不良品), 由QA/PMC/SR會(huì)簽，QC 貼“RTV”標(biāo)簽,材料放入拒收倉(cāng)庫(kù)，采購(gòu)員發(fā)給供應(yīng)商退貨單并且安排退貨。6.1.3QC leader is responsible for distributing the IIR to concerned department for actionsQC leader 負(fù)責(zé)分發(fā)IIR至相關(guān)部門(mén)采取相關(guān)的行動(dòng)。

20、6.2Nonconforming material in in-process.制程中的不良品6.2.1All the nonconforming WIP is handled as following:制程不良品一般處置如下： Nonconforming material is found by QA inspector or operator and confirmed by QAEngineer to be identified by “Rejection” labels arrange QA inspector to check the same lot materials in wa

21、rehouse, then release “Nonconforming Material Notice” to warehouse to segregate them in MRB area and stick the rejection label on them.QA檢驗(yàn)員或操作員發(fā)現(xiàn)來(lái)料不良，由QA工程師確認(rèn)后檢驗(yàn)員貼“Rejection” 標(biāo)簽, 同時(shí)安排QA檢驗(yàn)員檢查在倉(cāng)庫(kù)里同一批來(lái)料, 如果同樣發(fā)現(xiàn)來(lái)料不良則發(fā)出”倉(cāng)庫(kù)不良物料通知單”要求倉(cāng)庫(kù)把這些不良物料隔離到MRB區(qū)域,并且在不良品上貼上拒收標(biāo)簽. QA Engineer makes the disposition of th

22、e nonconforming material and the relative section leader issues the MRB report with defective samples (if any) to the concerned processes. Disposition of nonconforming WIP is either one of the followings:QA工程師處置不良品，相關(guān)部門(mén)主管發(fā)行MRB并附帶樣品.不良品一般處置如下：A.“UAI” is “Used As Is”. The WIP is accepted in deviate an

23、d released for use in the next operation. If the UAI WIP does not conform to customers requirement, the written authorization from the customer is required.“UAI”是“Used As Is”（特采），接受并且放行至下一個(gè)工站，如果UAI不符合客戶的要求，需要得到客戶的認(rèn)可。B.“RWK” is “Rework/Sort”. The WIP is reworked/sorted according to the instruction de

24、scribed in MRB. The WIP is re-inspected and only accepted WIP is passed to the next operation, the NG WIP will be “RWK”是返工/挑選, 依據(jù)MRB挑檢/返工制成品。再次檢查并確認(rèn)可接受后才可以放行到下一個(gè)工站。C.Scrap.不良品直接報(bào)廢。D.“RTV” is “Return to vendor”. The inspector identifies them with “RTV” labels and the materials are passed to the Rejec

25、t Store. The sourcing arranges for returning.“RTV”是退貨給供應(yīng)商，檢驗(yàn)員確認(rèn)“RTV”標(biāo)簽，不良品生產(chǎn)安排退倉(cāng)，倉(cāng)庫(kù)將其放置到拒收倉(cāng)，采購(gòu)安排退貨。 Production reviews the MRB report/lot to determine the actions taken. 生產(chǎn)主管依據(jù)MRB處置結(jié)果決定采取的行動(dòng).6.2.2If the nonconforming WIP is found “Rework/Sort”, when it is urgent materials for production, PMC and rel

26、ative department leader should sign on the log inspection sheet and agree to Rework/Sort on next process, the materials can be passed to next process temporarily, but must be follow actions as below:如果不良品是依MRB決定是“返工/挑選”，但生產(chǎn)急需使用時(shí)，需PMC和相關(guān)部門(mén)主管在檢查表上簽字，并且一致同意在下個(gè)工序返工/挑選，產(chǎn)品可先放行，但必須按以下程序執(zhí)行：QA issues Rejecti

27、on form with defective samples (if any) and acknowledge the process which is responsible for rework/sorting.QA 發(fā)行拒收通知單并附有不良品，通知負(fù)責(zé)返工工站。QA inspector identifies the nonconforming WIP with “MRB” labels.QA 檢查員在不良品上明示“MRB” 標(biāo)簽 The nonconforming WIP with “MRB” label is transferred to store, segregated in re

28、work/sort location and issued to next process for reworking/sorting.貼有 “MRB”標(biāo)簽的不良品轉(zhuǎn)移到倉(cāng)庫(kù)，放置于返工/全檢區(qū)域以便于下工序返工。Production operators identify and segregate them for good parts.生產(chǎn)作業(yè)員將不良品與良品分開(kāi)并明示。Production supervisor reviews the rejection notice ,QA Engineer suggests how to sort and rework.生產(chǎn)主管確認(rèn)拒收通知單,并按Q

29、A工程師的建議進(jìn)行全檢和返工。After reworking/sorting, the good units are segregated, examined by QC. 全檢返工后，QC確認(rèn)返工結(jié)果。The nonconforming WIP that cannot be reworked are separated, identified with “Rejection”label and rechecked by QA inspector and then waited for disposed by MRB. The finaldisposition of nonconforming

30、 material follow up .不能返工的不良品在外箱上明示 “Rejection”標(biāo)簽，并由QA檢察員復(fù)查后等待MRB處理,處理結(jié)果遵循.When a batch of nonconforming WIP are found during assembly processing, the nonconforming WIP are to be registered in “Process Nonconformity Statistic Sheet“ , after confirmed by QC&QA Engineer, the nonconforming WIP are to b

31、e segregated and waited for disposed by MRB. Assembly supervisor initiates a MRB Report and records the proposed disposition. The MRB Report is circulated to the MRB members for approval. The final disposition of nonconformingmaterial follow up .當(dāng)裝配在生產(chǎn)過(guò)程中發(fā)現(xiàn)批量不良時(shí)，需將不良發(fā)現(xiàn)登記于制程不良統(tǒng)計(jì)表，并將不良品給QC和QA工程師確認(rèn)，確認(rèn)后

32、的不良品分開(kāi)存放以等待MRB處置,裝配主管發(fā)行MRB,記錄處理.6。6.3Nonconforming product in final QA (including component and finished goods stage).終檢發(fā)現(xiàn)不良品 (包括部品和成品).6.3.1 Nonconforming (NC) product from production成品不良品Q(chēng)A inspector segregates the NC products with “Rejection” label, records on the InspectionReport that is reviewe

33、d and approved by QA Engineer.QA檢察員隔離不良品并貼上“Rejection”標(biāo)簽，記錄檢查結(jié)果由QA工程師確認(rèn).QA issues Rejection Notice CAPA form with defective samples (if any) to concerned production department for taking actions.QA發(fā)行拒收通知CAPA單并附帶不良品給生產(chǎn)部門(mén)以便于其采取行動(dòng).Production reviews the NC products and QA Engineer suggests how to rewor

34、k/sort.生產(chǎn)部門(mén)確認(rèn)不良品并按QA工程師的建議進(jìn)行返工或挑選.NC product after reworking/sorting is routed back to QA for re-inspection.返工/挑選后送給QA再次檢查。When nonconforming goods cant be reworked, the nonconforming goods are to be registered in “ Process Nonconforming Statistic Sheet” , After confirmed by QC&QA, the nonconforming

35、 goods are to be segregated and waited for disposed by MRB . Assembly supervisor initiates a MRB Report, records the proposed disposition and takes action as per disposition of MRB.當(dāng)不良成品不能返工時(shí)，不良品須先登記于制程不良統(tǒng)計(jì)表，經(jīng)QC和QA確認(rèn)后，生產(chǎn)部門(mén)將不良品分開(kāi)存放以等待MRB處置。裝配主管發(fā)行MRB，記錄MRB處理結(jié)果并按處理結(jié)果采取行動(dòng)。6.3.2When nonconforming product

36、 is found from subcontractors, QA inspector segregates the nonconforming product and identifies them with Rejection labels. The inspection results are recorded on the Incoming Inspection Report (IIR) and submitted to the QA Engineer.當(dāng)發(fā)現(xiàn)供應(yīng)商提供的成品有不良，QA檢驗(yàn)員將隔離不良品并貼上Rejection標(biāo)簽，檢查結(jié)果記錄到IIR，并將報(bào)告遞交給QA工程師。 E

37、ngineer reviews the IIR and makes disposition of the nonconforming product.QA工程師確認(rèn)IIR，決定如何處置不良品。 The disposition can be one of the following:處置方法如下：A UAI - the product is used as is and released for delivery. If the UAI product does not conform to the customers requirements, a written authorization

38、from the customer is required.UAI產(chǎn)品可以使用并出貨。如果UAI不符合客戶的要求，需要得到客戶的認(rèn)可。B If the disposition is Sort or Rework, the nonconforming product is transferred to store and identified with Rework/Sort labels. PMC arranges rework/sort.如果處置為返工/挑選，不良品轉(zhuǎn)入倉(cāng)庫(kù)并貼上返工/挑選標(biāo)簽，PMC安排生產(chǎn)部返工/挑選。C Scrap - some sample may scrap aft

39、er inspection.報(bào)廢 - 檢查后可以報(bào)廢的樣品。DIf the disposition is RTV, A RTV label is stuck on and the product is passed to theReject Store. The sourcing issues the Return To Vendor Notice (RTVN) and arrange for returning the product to the subcontractor.如果處置為RTV，產(chǎn)品貼上RTV標(biāo)簽并放置到拒收倉(cāng)庫(kù)。采購(gòu)員發(fā)行 (RTVN)并且安排退貨。The disposit

40、ion is recorded on the IIR. 處理內(nèi)容記錄在檢驗(yàn)報(bào)告上。QA leader is responsible for distributing the copies. The related departments take action as perthe disposition.QA 組長(zhǎng)負(fù)責(zé)發(fā)行報(bào)告,相關(guān)部門(mén)按處理結(jié)果采取行動(dòng)。The sourcing arranges for returning the NC product to vendor.采購(gòu)員安排將不良品退給供應(yīng)商。6.3.3Nonconforming (NC) product from Sister D

41、ivisions, Sister Division appointed Distributor or suppliers;兄弟單位或兄弟單位指定供應(yīng)商的不良品Q(chēng)A found the nonconforming FG during inspection and informed QA Engineer and CS for determine the further actions.QA在檢查過(guò)程中發(fā)現(xiàn)不良品，通知QA工程師和CS去決定進(jìn)一步的處置。QA Engineer makes one of the following dispositions:QA工程師實(shí)施的處置如下：A. “UAI”

42、 Due to urgent shipment for product, QA engineer will review the quality of the items. If it is minor problem and not affect any function, it is identified as “Used As Is” .“UAI”生產(chǎn)物料緊急，QA工程師將確認(rèn)不良項(xiàng)目。如果是輕微的品質(zhì)問(wèn)題并且不影響任何功能，將在產(chǎn)品上貼“Used As Is”。B. “Rejection” The product is rejected due to not conform to ou

43、r specification.“Rejection” 拒收不符合規(guī)格的產(chǎn)品。C. “RTV” If the action is “RTV”, “RTV” label is stuck on and the product is transferred to theReject Location. The CS personnel arrange the NC product to the Supplier.如果是“RTV”，在產(chǎn)品上貼“RTV”標(biāo)簽并將其放入拒收倉(cāng)庫(kù)內(nèi)。CS安排將不良產(chǎn)品退貨。6.4Nonconforming product returned by customer客戶退回的

44、不良品6.4.1All customers returned products are kept separately in the Customer Material Return Store.所有客戶退回的不良品都要放置在客戶退料倉(cāng)庫(kù)。6.4.2The Store Supervisor issues a Customer Return Receiving Sheet (CRRS) with serial number to the QA Engineer upon the receipt of the returned product.倉(cāng)庫(kù)主管在收到退貨后，發(fā)行客戶退貨接收單 (CRRS)

45、給QA工程師。The QA Engineer performs analysis on the returned product and records the findings on the工程師分析不良品并且記錄。6.4.4 The QA Engineer initiates a MRB report and records the proposed disposition on the report. The MRB Report is circulated to the MRB members for approval.QA工程師發(fā)行MRB報(bào)告及處置方法，MRB報(bào)告發(fā)行給相關(guān)人員承認(rèn)。

46、6.4.5 Disposition of nonconforming product return is either one of the followings:不良品處置方式如下：UAI is “Used As Is”. The product return was wrong shipped or over-shipped but meets the appropriate specification.UAI是“特采使用” ，限于退回的產(chǎn)品符合規(guī)格，是送錯(cuò)型號(hào)或多送的產(chǎn)品。RWK is “Rework/Sort”. The returned product has minor quali

47、ty problem and is able to sort or rework. PMC issues rework order to production who is followed the QA/PE instruction stated in MRB report. The rework/sort lot needs to routed back to QA for re-inspection.RWK是“返工/挑選”不良品存在小的品質(zhì)問(wèn)題并且能夠返工。PMC發(fā)行返工訂單給生產(chǎn)部，生產(chǎn)部依據(jù)QA/PE在MRB報(bào)告上的處置方法實(shí)施返工。返工后的產(chǎn)品需要QA檢查。Scrap.退回產(chǎn)品直接

48、報(bào)廢。“RTV” is “Return To Vendor”. The return product is segregated in the Reject Store. The C/S Officer arranges for returning to vendor.“RTV”是退貨給供應(yīng)商。退貨放在拒收倉(cāng)庫(kù)。客服人員負(fù)責(zé)退貨。6.5 Nonconforming Products Recall at Customer Site從客戶方召回不良品6.5.1 Once the nonconforming products with quality issue or environment rel

49、ated material issue are foundto be delivered to customer, they should be recalled back by QA manager or CS manager fordisposition. After their return back, their disposition flow is same as the one as described in 7.4 section.一旦發(fā)現(xiàn)與品質(zhì)或環(huán)境相關(guān)的不良品出貨給客戶， QA經(jīng)理或CS經(jīng)理應(yīng)該召回不良品實(shí)施處置。不良品召回后處置方式同 6.6 All MRB issued

50、 should have actions to be taken to prevent from re-occurring. See QP-853 所有正式發(fā)行的MRB應(yīng)有相應(yīng)措施記錄,防止再發(fā), 具體依QP-853 糾正與預(yù)防措施程序執(zhí)行;7.0 Attachment & Record 附件和記錄7.1 Attachment 1: F-0018 CAPA Form糾正預(yù)防措施報(bào)告7.2 Attachment 2: F-0020 Material Review Board Reports (MRB) MRB報(bào)告7.3 Attachment 3: F-0051 Customer Return R

51、eceiving Sheet(CRRF) 客戶退貨接收單7.4 Attachment 4: F-0070 Process Nonconforming Statistic Sheet 制程不良統(tǒng)計(jì)表7.5 Attachment 5: F-0016 Return To Vendor Notice退貨單7.6 Attachment 6: F-0001 Incoming Inspection Report-IIR來(lái)料檢驗(yàn)報(bào)告 7.7 Attachment7: F-0083 MRB Follow Up Sheet MRB跟蹤表戀愛(ài)運(yùn)UP一緒Lets月亭方正！気持今Flying Get！dou都斗豆逗陡抖

52、痘兜讀蚪竇篼蔸乧侸兠凟剅吺唗投斣枓梪橷毭氀浢瀆瀆瞗窬竇脰艔豆讀逾郖酘酡鈄鋀鈄閗闘阧餖饾斗鬦鬪鬬鬭du讀度毒渡堵獨(dú)肚鍍賭睹杜督都犢妒頓蠹篤嘟瀆櫝牘黷髑芏儥凟剢剫匵厾噣土涂妬嬻剬塅媏彖斷毈瑖碫篅籪緞專(zhuān)腶葮褍踹躖鍛鍴Mr Najib met search crews at Pearce RAAF base near Perth on Thursday morning, before their planes left for the day, and then later held talks with Mr Abbott.The disappearance of MH370 has tested

53、our collective resolve, he told a news conference.Faced with so little evidence, and such a Herculean task, investigators from Malaysia, the US, the UK, China, Australia and France have worked without pauseHe thanked both search teams and the Australian government for their efforts in recent weeks,

54、and said the search would go on. HYPERLINK :/ bbc /news/world-asia-26862378 l story_continues_2 Continue reading the main storyMH370 - Facts at a glance8 March:Malaysia Airlines Kuala Lumpur-Beijing flight carrying 239 people disappearsPlanes transponder, which communicates with ground radar, was sw

55、itched off as it left Malaysian airspaceSatellite pings indicate plane was still flying seven hours after satellite contact was lost24 March:Based on new calculations, Malaysian PM says beyond reasonable doubt that plane crashed in southern Indian Ocean with no survivors HYPERLINK :/ bbc /news/world

56、-asia-26503141 What we know HYPERLINK :/ bbc /news/world-asia-26514556 The search for flight MH370I know that until we find the plane, many families cannot start to grieve. I cannot imagine what they must be going through. But I can promise them that we will not give up, he said.Malaysian authoritie

57、s have come in for heavy criticism over their management of the search, especially from relatives of thWeather conditions were fair, with visibility of approximately 10km (6 miles), the Joint Agency Coordination Centre (JACC) - which is overseeing the search - said.The British submarine HMS Tireless

58、 is also in the southern Indian Ocean and is due to be joined by Royal Navy ship HMS Echo.The Australian Navy ship Ocean Shield is heading to the region and has equipment for detecting the planes black-box flight recorder.Experts say timing is critical as the flight recorder may only have enough bat

59、tery power to send out a signal until 7 April.Air Chief Marshall Angus Houston, head of the JACC, warned that the search operation faced multiple difficulties.This is one of the most demanding and challenging search and rescue operations, or search and recovery operations, that I have ever seen and

60、I think probably one of the most complex operations of this nature that the world has ever seen, he told Mr Najib and Mr Abbott.On Wednesday Malaysian police chief Khalid Abu Bakar said investigators had cleared all passengers of possible involvement in hijacking, sabotage or having personal or psyc