Malaysia Airlines Penerbangan 370: Perbedaan antara revisi

| image = Boeing 777-200ER Malaysia AL (MAS) 9M-MRO - MSN 28420 404 (9272090094)color.jpg<!-- DO NOT change this without consensus. See TALK PAGE.-->

| caption = MalaysiaPesawat Airlinesyang Boeing 777-200ERhilang, tahundalam foto pada Desember 2011

| summary = KecelakaanTidak takmeyakinkan, diterangkanbeberapa puing ditemukan

| fatalities = 239 (kemungkinan besardiduga)

| survivors = 0 (kemungkinan besardiduga)

'''Malaysia Airlines Penerbangan 370''' (MH370/MAS370){{efn|MH adalah [[penanda maskapai penerbangan IATA|penanda IATA]] dan MAS adalah [[penanda maskapai penerbangan ICAO|penanda ICAO]]. Penerbangan ini juga dioperasikan dengan nama [[China Southern Airlines]] Penerbangan 748 (CZ748) melalui [[perjanjian codeshare|codeshare]].<ref>{{cite news|last=MacLeod|first=Calum|title=Beijing-bound flight from Malaysia missing|url=http://www.usatoday.com/story/news/world/2014/03/07/malaysia-airlines-beijing-flight-missing/6187779/|accessdate=16 MarchMaret 2014|newspaper=USA Today|date=8 MarchMaret 2014|author2=Winter, Michael|author3=Gray, Allison}}</ref>}} adalah [[penerbangan internasional|penerbangan penumpang internasional]] terjadwal yang menghilang pada tanggal 8 Maret 2014 dalam perjalanan dari [[Bandar Udara Internasional Kuala Lumpur]] ke [[Bandar Udara Internasional Ibu Kota Beijing]]. Pesawat [[Boeing 777-200ER]] ini terakhir kali melakukan kontak dengan [[pengawas lalu lintas udara]] kurang dari satu jam setelah lepas landas. Dioperasikan oleh [[Malaysia Airlines]] (MAS), pesawat ini mengangkut 12 awak kabin dan 227 penumpang dari 15 negara, kebanyakan di antaranya adalah warga negara [[Republik Rakyat Tiongkok|Tiongkok]].

Pada hari yang sama, upaya [[pencarian dan penyelamatan]] gabungan yang kabarnya merupakan yang terbesar sepanjang sejarah<ref>{{cite web|last=Neuman|first=Scott|title=Search For Flight MH370 Reportedly Largest in History|url=http://www.npr.org/blogs/thetwo-way/2014/03/17/290890377/search-for-flight-mh370-reportedly-largest-in-history|publisher=The Two-way|accessdate=19 MarchMaret 2014}}</ref> dilancarkan di [[Teluk Thailand]] dan [[Laut Tiongkok Selatan]].<ref>{{cite web|url=http://www.bbc.com/news/world-asia-26541057 |title=Malaysia Airlines MH370: Last communication revealed |publisher=BBC |date=12 MarchMaret 2014 |accessdate=13 MarchMaret 2014}}</ref><ref name=20140310cbcnews/> Wilayah pencariannya diperluas hingga [[Selat Malaka]] dan [[Laut Andaman]].<ref name=20140310indie/><ref name=Reuters>{{cite web|last=Grudgings|first=Stuart|title=Malaysia Airlines plane crashes in South China Sea with 239 people aboard: report|url=http://www.reuters.com/article/2014/03/08/us-malaysiaairlines-flight-idUSBREA2701720140308|accessdate=8 MarchMaret 2014|archive-date=2014-03-08|archive-url=https://web.archive.org/web/20140308015839/http://www.reuters.com/article/2014/03/08/us-malaysiaairlines-flight-idUSBREA2701720140308|dead-url=yes}}</ref><ref name="id">{{cite web|url=http://www.nst.com.my/latest/font-color-red-missing-mh370-font-indonesia-helps-in-search-for-airliner-1.504168|title=MISSING MH370: Indonesia helps in search for airliner|work=[[New Straits Times]]|date=9 MarchMaret 2014|accessdate=9 MarchMaret 2014|author=Tasnim Lokman}}</ref> Tanggal 15 Maret, setelah muncul laporan media bahwa penyidik AS percaya bahwa pesawat ini berbelok ke barat melintasi [[Semenanjung Malaya]] setelah pengawas lalu lintas udara kehilangan kontak dan sebuah [[satelit]] masih menerima "ping" dari pesawat selama beberapa jam,<ref name="NYTaltitude"/><ref name="5hrsinair">[[Andy Pasztor]] (12 March 2014), [http://online.wsj.com/news/articles/SB10001424052702304914904579434653903086282 Missing Airplane Flew On for Hours] ''[[The Wall Street Journal]]''.</ref><ref name="CBSradar">{{cite web|author=Bob Orr (|date=13 MarchMaret 2014), [|url=http://www.cbsnews.com/news/malaysia-airlines-flight-370-authorities-wide-search-for-missing-plane-again/ |title=Did Malaysian plane fly toward Indian Ocean after last contact?] ''|publisher=[[CBS News]]''.}}</ref><ref>[{{cite web|url=http://www.theguardian.com/world/2014/mar/15/malaysian-pms-full-statement |title=Malaysian PM's full statement] ''|website=[[The Guardian]]'' |date=15 MarchMaret 2014}}</ref> pencarian diperluas hingga Samudra Hindia. Per 18 Maret, ada 26 negara yang terlibat dalam pencarian pesawat ini.<ref name="thestar18"/>

Pada tanggal 20 Maret, serangkaian foto satelit yang memperlihatkan kemungkinan adanya serpihan pesawat di Samudra Hindia selatan di sebelah barat daya Australia, tepatnya di ujung paling tenggara lokasi selatan, membuat aktivitas pencarian difokuskan di wilayah tersebut.<ref name="abbot20march">{{cite news|title=Missing Malaysia Airlines plane: Debris found in search for MH370, says Australian Prime Minister Tony Abbott|url=http://www.smh.com.au/national/missing-malaysia-airlines-plane-debris-found-in-search-for-mh370-says-australian-prime-minister-tony-abbott-20140320-354xz.html|accessdate=20 MarchMaret 2014|newspaper=[[The Sydney Morning Herald]]|date=20 MarchMaret 2014}}</ref> Serpihan lain di sekitarnya terlihat oleh pesawat militer Australia dan Tiongkok pada 24 Maret.<ref>{{cite web|last=Pearson|first=Michael|title=Flight 370 passenger's relative: 'All lives are lost'|url=http://www.cnn.com/2014/03/24/world/asia/malaysia-airlines-plane/index.html?hpt=hp_t1|work=CNN.com|accessdate=24 March 2014|coauthors=Mullen, Jethro}}</ref> Meski keberadaannya masih tidak diketahui, {{as of|24|Maret|2014|alt=per 24 Maret}}, pejabat Malaysia Airlines dan pemerintah Malaysia percaya bahwa pesawat ini jatuh di [[Samudra Hindia]] Selatan tanpa korban selamat berdasarkan analisis oleh penyelidik penerbangan Britania Raya dan perusahaan satelit [[Inmarsat]].<ref>{{cite web |url=http://www.theguardian.com/world/2014/mar/24/mh370-lost-southern-indian-ocean-malaysian-pm |title=Missing flight MH370 lost in southern Indian Ocean, says Malaysian PM |last=Branigan |first=Tania |publisher=The Guardian |date=24 MarchMaret 2014 |accessdate=24 MarchMaret 2014}}</ref><ref>{{cite web |url=http://metro.co.uk/2014/03/24/malaysian-prime-minister-missing-flight-mh370-ended-in-indian-ocean-and-no-one-on-board-survived-4676844/ |title=Malaysian prime minister: Missing flight MH370 ‘ended in Indian Ocean and no one on board survived’ |publisher=Metro.co.uk |date=24 MarchMaret 2014 |accessdate=24 MarchMaret 2014}}</ref><ref>{{cite web |url=http://www.ft.com/cms/s/0/abe73078-b35d-11e3-b09d-00144feabdc0.html |title=Malaysia says data indicate MH370 crashed into the Indian Ocean |last=Sevastopulo |first=Demetri |publisher=Financial Times |date=24 MarchMaret 2014 |accessdate=24 MarchMaret 2014}}</ref>

Pesawat ini berangkat dari [[Bandar Udara Internasional Kuala Lumpur]] pada tanggal 8 Maret pukul 00:41 [[Waktu di Malaysia|waktu setempat]] (16:41 [[Coordinated Universal Time|UTC]], 7 Maret) dan dijadwalkan mendarat di [[Bandar Udara Internasional Ibu Kota Beijing]] pukul 06:30 [[Waktu di Tiongkok|waktu setempat]] (22:30 UTC, 7 Maret). Pesawat ini sedang naik ke ketinggian [[jelajah (penerbangan)|jelajah]] {{convert|35000|ft}} dengan [[kecepatan udara sejati]] {{convert|471|kn|mph km/h}} ketika pesawat ini hilang komunikasi dan sinyal [[Transponder (aviation)|transpondernya]] hilang. Posisi terakhir pesawat ini per 8 Maret pukul 01:21 waktu setempat (17:21 UTC, 7 Maret) adalah {{Coord|6|55|15|N|103|34|43|E|type:event_dim:500km}}, sesuai [[titik jalur#Dalam penerbangan|titik jalur]] navigasi IGARI di [[Teluk Thailand]], dan dari situ rencananya pesawat berbelok sedikit ke arah timur.<ref name=indie9192974/> Pelacakan militer menunjukkan bahwa pesawat ini turun ke ketinggian 12.000 kaki setelah berbelok tajam ke arah Selat Malaka. Belokan tajam ini dianggap dilakukan secara sengaja karena pesawat tersebut butuh 2 menit untuk berbelok seperti itu dan tidak ada panggilan darurat ketika hal ini terjadi.<ref>{{cite web|url=http://www.cnn.com/2014/03/23/world/asia/malaysia-airlines-plane/index.html?hpt=hp_t1|date=23 Maret 2014|title=Source: Flight 370's altitude dropped after sharp turn|website=CNN News}}</ref>

Pesawat ini rencananya akan menghubungi pengawas lalu lintas udara di [[Ho Chi Minh City]] ketika melewati ruang udara Vietnam tepat di utara titik kehilangan kontak.<ref>{{cite web|title=FlightRadar24.com MH370 7 MarchMaret 2014|url=http://www.flightradar24.com/data/flights/mh370#2d81a27}}</ref><ref>{{cite web|url=http://uk.flightaware.com/live/flight/MAS370/history/20140307/1635Z/WMKK/ZBAA|publisher=flightaware|title=Malaysian Airlines System (MH) No. 370 ✈ 08-Mar-2014 ✈ WMKK / KUL – ZBAA / PEK ✈|accessdate=8 MarchMaret 2014}}</ref> Kapten pesawat lainnya berusaha menghubungi pilot MH370 "tepat setelah pukul 01:30 a.m." untuk menyampaikan permintaan pengawas lalu lintas udara Vietnam agar menghubungi mereka; kapten mengatakan bahwa ia bisa membina kontak, tetapi hanya mendengar pesan yang tidak jelas dan suara statis.<ref name="nst-pilot">{{cite news|title=Pilot: I established contact with plane|url=http://www.nst.com.my/nation/general/font-color-red-missing-mh370-font-pilot-i-established-contact-with-plane-1.503464|accessdate=17 MarchMaret 2014|newspaper=[[New Straits Times]]|date=9 MarchMaret 2014}}</ref>

Malaysia Airlines (MAS) mengeluarkan pernyataan media pada pukul 07:24, satu jam setelah kedatangan terjadwal penerbangan ini di Beijing. Pernyataan tersebut menyebut bahwa ATC Malaysia kehilangan kontak dengan pesawat pada pukul 02:40. MAS mengatakan bahwa pemerintah telah memulai operasi [[pencarian dan penyelamatan]].<ref>{{cite web|title=04:20 PM MYT +0800 Malaysia Airlines MH370 Flight Incident – 4th Media Statement|url=http://www.malaysiaairlines.com/my/en/site/dark-site.html|publisher=Malaysia Airlines|accessdate=8 MarchMaret 2014|archiveurl=https://web.archive.org/web/20140308024002/http://www.malaysiaairlines.com/my/en/site/dark-site.html|archivedate=8 MarchMaret 2014|deadurl=no}}</ref> Kemudian diketahui bahwa pengawas lalu lintas udara Subang kehilangan kontak dengan pesawat pukul 01:22 dan memberitahu Malaysia Airlines pukul 02:40. Baik awak kabin maupun sistem komunikasi pesawat tidak mengirimkan [[sinyal darurat]], indikasi cuaca buruk, atau masalah teknis sebelum menghilang dari layar radar.<ref name="Aviation Herald" /><ref name=20140312avweek>{{cite web |url=http://www.aviationweek.com/Article.aspx?id=/article-xml/awx_03_11_2014_p0-671110.xml |title=No MH370 Distress Call, Search Area Widened |work=Aviation Week & Space Technology |date=12 MarchMaret 2014 |access-date=2022-01-12 |archive-date=2014-03-12 |archive-url=https://web.archive.org/web/20140312053928/http://www.aviationweek.com/Article.aspx?id=%2Farticle-xml%2Fawx_03_11_2014_p0-671110.xml |dead-url=yes }}</ref><!-- Timing of ACARS deactivation is unclear. The last ACARS message at 01:07 was not necessarily point at which system was turned off.--><ref name="outofcontrolvideos.com">{{cite web |url=http://outofcontrolvideos.com/mh370-pc-live-updates-530-17th-march/ |title=(17 March 2014) |publisher=Out of Control Videos |date=8 MarchMaret 2014 |access-date=2014-03-24 |archive-date=2014-03-17 |archive-url=https://web.archive.org/web/20140317135858/http://outofcontrolvideos.com/mh370-pc-live-updates-530-17th-march/ |dead-url=yes }}</ref> Kata-kata terakhir yang didengar pengawas lalu lintas udara Malaysia pada pukul 01:19 adalah suara kopilot yang mengatakan, "''All right, good night''".<ref name="goodnight" />

[[Berkas:Malaysia-Airlines-MH370 insert.png|thumbjmpl|upright=1.3|Rute: Kuala Lumpur – Beijing. Inset: wilayah pencarian awal dan jalur yang diketahui. Persegi merah kecil: kontak radar. Lingkaran kecil: klaim penemuan serpihan.]] <!-- Images containing important detail (for example, a map, diagram, or chart) may need larger sizes than usual to make them readable. Ref: MOS:IMAGES -->

! style="width:60px;"| [[Waktu di Malaysia|MYT]] || style="width:60px;" | [[UTC]]

| 00:00 || 00:4142 || 16:4142 || style="text-align:left;" | Lepas landas dari Kuala Lumpur

| 00:20 || 01:01 || 17:01 || style="text-align:left;"| MH370 mengonfirmasi ketinggian {{convert|35000|ft}}<ref name="Telegraph Transcript">''The{{cite Telegraph'',web|publisher=Daily [Telegraph|url=http://www.telegraph.co.uk/news/worldnews/asia/malaysia/10714907/Revealed-the-final-54-minutes-of-communication-from-MH370.html "|title=Revealed: the final 54 minutes of communication from MH370"]}}</ref>

| 00:26 ||01:07 || 17:07 || style="text-align:left;"| Transmisi data [[Aircraft Communications Addressing and Reporting System|ACARS]] terakhir diterima;<ref name="Press Con">''{{cite web|website=Out of Control Videos'', [|url=http://outofcontrolvideos.com/mh370-pc-live-updates-530-17th-march/ "|title=Timing of ACARS deactivation unclear. Last ACARS message at 01:07 was not necessarily point at which system was turned off"]|access-date=2014-03-24|archive-date=2014-03-17|archive-url=https://web.archive.org/web/20140317135858/http://outofcontrolvideos.com/mh370-pc-live-updates-530-17th-march/|dead-url=yes}}</ref> MH370 mengonfirmasi ulang ketinggian 35.000 kaki<ref name="Telegraph Transcript" />

| 00:38 || 01:19 || 17:19 || style="text-align:left;"| Kontak suara terakhir dengan [[pengawas lalu lintas udara|ATC]] Malaysia<ref name="goodnight">''Daily Mail'',{{cite [web|url=http://www.dailymail.co.uk/news/article-2583076/Was-Malaysian-pilots-message-base-secret-distress-signal-Officials-investigate-possibility-unusual-sign-indicated-wrong.html "|title=Was Malaysian co-pilot's last message to base a secret distress signal? Officials investigate possibility unusual sign-off may have indicated something was wrong"]|website=DailyMail}}</ref>

| 00:41 || 01:22 || 17:22 || style="text-align:left;"| Transponder dan [[AutomaticSistem dependentpengawasan surveillance-broadcasttergantung otomatis–siaran|ADS-B]] mati

| 01:34 || 02:15 || 18:15 || style="text-align:left;"| Kontak radar primer terakhir dengan militer Malaysia, {{convert|200|miles}} di barat laut [[Pulau Pinang|Penang]]

| 07:30 || 08:11 || 00:11 || style="text-align:left;"| Kontak otomatis ACARS terakhir dengan satelit Inmarsat<ref>''{{cite web|website=The New Yorker'', [|url=http://www.newyorker.com/online/blogs/closeread/2014/03/the-story-of-flight-370-changes-again.html "|title=The Story of Flight 370 Changes Again"]}}</ref><ref name="telegraphtranscript">{{cite news|url=http://www.telegraph.co.uk/news/worldnews/asia/malaysia/10714907/Revealed-the-final-54-minutes-of-communication-from-MH370.html|title=

Revealed: the final 54 minutes of communication from MH370|first1=Jonathan|last1=Pearlman|first2=Adam|last2=Wu|newspaper=[[The Daily Telegraph]]|date=21 MarchMaret 2014}}</ref>

[[Berkas:Boeing 777-2H6-ER, Malaysia Airlines AN0561319.jpg|thumbjmpl|rightka|Pemandangan dek pesawat 9M-MRO, menampilkan banyak sistem komunikasi yang saat ini sedang diselidiki]]

''[[New Scientist]]'' melaporkan bahwa, sebelum pesawat hilang, dua aporan [[Aircraft Communications Addressing and Reporting System|ACARS]] telah dikeluarkan secara otomatis kepada pusat pengawasan produsen mesin [[Rolls-Royce Holdings|Rolls-Royce]] di Britania Raya;<ref>{{cite web|author=Paul Marks (|date=11 MarchMaret 2014), [|url=http://www.newscientist.com/article/dn25201-malaysian-plane-sent-out-engine-data-before-vanishing.html |title=Malaysian plane sent out engine data before vanishing] ''|website=[[New Scientist]]''.}}</ref> dan ''[[The Wall Street Journal]]'', mengutip sumber di dalam pemerintah AS, menulis bahwa Rolls-Royce menerima laporan operasi pesawat setiap tiga puluh menit selama lima jam, artinya pesawat ini masih terbang selama empat jam setelah transpondernya mati.<ref name=20140313reuters>{{cite news|date=13 MarchMaret 2014|last=Peters|first=Chris|url=http://www.reuters.com/article/2014/03/13/us-malaysia-airlines-usa-investigators-idUSBREA2C0B820140313|title=U.S. investigators suspect missing Malaysian plane flew for hours -WSJ|agency=[[Reuters]]|accessdate=23 MarchMaret 2014|archive-date=2014-03-24|archive-url=https://web.archive.org/web/20140324154042/http://www.reuters.com/article/2014/03/13/us-malaysia-airlines-usa-investigators-idUSBREA2C0B820140313|dead-url=yes}}</ref><ref>{{cite web|url=http://www.theweek.co.uk/world-news/flight-mh370/57641/flight-mh370-more-debris-spotted-indian-ocean-search-steps |title=Flight MH370: Australia spots possible plane debris in sea |work=The Week |location=UK }}</ref><ref name="5hrsinair_disputed"/>

Keesokan harinya, [[Kementerian Transportasi (Malaysia)|Menteri Transportasi Malaysia]] (sementara) membantah laporan ''The Wall Street Journal'' bahwa transmisi mesin terakhir diterima pukul 01:07, sebelum pesawat menghilang dari radar sekunder.<ref name="5hrsinair_disputed">{{cite news|date=13 MarchMaret 2014|url=http://www.reuters.com/article/2014/03/13/us-malaysiaairlines-flight-idUSBREA2701720140313|title=Malaysia says no evidence missing plane flew hours after losing contact|agency=[[Reuters]]|accessdate=13 MarchMaret 2014|archive-date=2014-03-13|archive-url=https://web.archive.org/web/20140313064353/http://www.reuters.com/article/2014/03/13/us-malaysiaairlines-flight-idUSBREA2701720140313|dead-url=yes}}</ref> Laporan selanjutnya dari [[Reuters]] menyebut bahwa buktinya mungkin berupa "ping" yang dikirim oleh sistem komunikasi pesawat, bukan data (laporan [[telemetri]]).<ref>{{cite news|url=http://www.reuters.com/article/2014/03/13/malaysia-airlines-data-idUSL2N0MA18V20140313|title=Satellites picked up pings from Malaysia jet, source says|date=13 MarchMaret 2014|agency=Reuters|accessdate=13 March 2014|archive-date=2014-03-13|archive-url=https://web.archive.org/web/20140313235928/http://www.reuters.com/article/2014/03/13/malaysia-airlines-data-idUSL2N0MA18V20140313|dead-url=yes}}</ref>

''The Wall Street Journal'' kemudian mengubah laporannya dan menyatakan bahwa keyakinan bahwa pesawat tersebut masih terbang "didasarkan pada analisis sinyal yang dikirim oleh hubungan komunikasi satelit Boeing 777... hubungan yang dioperasikan dalam mode siaga (''standby'') dan berusaha membina kontak dengan sebuah satelit atau beberapa satelit. Transmisi ini tidak menyertakan data..."<ref name="5hrsinair"/><ref name="CBSradar"/> [[Inmarsat]] mengatakan bahwa "sinyal otomatis yang rutin tercatat" di jaringannya,<ref>[http://www.inmarsat.com/news/inmarsat-statement-malaysia-airlines-flight-mh370/ Inmarsat statement on Malaysia Airlines flight MH370]. [[Inmarsat]]. 14 MarchMaret 2014.</ref> dan seorang eksekutif perusahaan menambahkan bahwa "pesan hidup" terus dikirimkan setelah pengawas lalu lintas udara pertama kali kehilangan kontak dan "sinyal-sinyal ping" ini dapat dianalisis untuk membantu memperkirakan lokasi pesawat.<ref>Chris Buckley anddan Nicola Clark (14 MarchMaret 2014), [http://www.nytimes.com/2014/03/15/world/asia/missing-malaysia-airlines-flight-370.html Satellite Firm Says Its Data From Jet Could Offer Location] ''[[The New York Times]]''.</ref>

Pada tanggal 14 Maret, ''[[The Independent]]'' menulis bahwa, berdasarkan pengiriman ping yang rutin oleh pesawat, pesawat ini mungkin tidak terbelah (disintegrasi) di udara atau mengalami peristiwa mendadak lain: "semua sinyal{{snd}}ping ke satelit, pesan data, dan transponder{{snd}}pasti berhenti pada waktu yang sama".<ref name=indie9192974>{{cite news|url =http://www.independent.co.uk/news/world/asia/missing-malaysia-airlines-flight-mh370-sources-claim-military-radar-data-shows-plane-was-diverted-to-andaman-islands-9192974.html|title =Missing Malaysia Airlines Flight MH370: Military radar shows jet could have been 'hijacked' and then flown towards Andaman Islands|work =[[The Independent]]|author=Heather Saul|date=14 MarchMaret 2014|accessdate = 19 MarchMaret 2014}}</ref> Setelah [[serangan 11 September|serangan 11 September 2001]], ketika transponder di tiga pesawat yang dibajak dimatikan,<ref name="cbsnews">{{cite web | url =http://www.cbsnews.com/news/malaysia-airlines-flight-370-mystery-raises-new-transponder-questions/| title =Why can plane transponders be turned off from the cockpit? |publisher =[[CBS News]]|date=19 MarchMaret 2014| accessdate =19 MarchMaret 2014}}</ref> banyak pihak mengusulkan pemasangan transponder otomatis;<ref name="cbsnews"/> tetapi tidak ada perubahan yang dilakukan karena para pakar penerbangan lebih memilih kendali yang fleksibel seandainya suatu saat perlu diset ulang akibat kesalahan teknis atau arus pendek.<ref name="cbsnews"/>

Menurut media Tiongkok, kerabat keluarga penumpang mendengar nada sambung ketika menelepon penumpang.<ref name="thejournal">{{cite web | url =http://www.thejournal.ie/mobile-phones-mh370-1369692-Mar2014/| title =Why didn't passengers on missing flight MH370 use their mobile phones? |publisher =[[TheJournal.ie]]| accessdate =22 MarchMaret 2014}}</ref> Meski begitu, klaim ini diabaikan karena Penerbangan 370 tidak dilengkapi [[stasiun pemancar]] (''base station'') yang ditawarkan oleh beberapa maskapai penerbangan dengan layanan telepon seluler dalam penerbangan,<ref name="thejournal"/> dan jarak dari menara pemancar, ketinggian penerbangan, dan [[kerangkeng Faraday|selubung]] badan pesawat membuat transmisi jenis apapun sangat tidak mungkin terjadi.<ref name="thejournal"/>

Pada tanggal 24 Maret, Malaysia Airlines mengumumkan:<blockquote>Menggunakan analisis yang belum pernah digunakan dalam investigasi [pesawat] seperti ini... Inmarsat dan AAIB telah menyimpulkan bahwa MH370 terbang di sepanjang koridor selatan, dan posisi terakhirnya berada di tengah Samudra Hindia di sebelah barat Perth. Ini adalah lokasi terpencil yang jauh dari tempat pendaratan manapun. Dengan kesedihan dan penyesalan yang mendalam saya beritahu bahwa, berdasarkan data baru ini, penerbangan MH370 berakhir di Samudra Hindia Selatan.<ref>{{cite news|last=Weaver|first=Matthew|title=MH370 assumed to have crashed with no survivors, says Malaysia Airlines - live updates|url=http://www.theguardian.com/world/2014/mar/24/mh370-chinese-plane-spots-white-objects-live-updates|newspaper=The Guardian|date=24 MarchMaret 2014}}</ref> </blockquote>

Pesan [[Short Message Service|SMS]] dikirimkan oleh pihak Malaysia Airlines kepada keluarga penumpang dan awak yang isinya "tanpa keraguan lagi" penerbangan ini hilang dan tidak ada korban selamat.<ref>http://www.bbc.com/news/world-asia-26716572{{cite web|url=http://www.bbc.co.uk/news/world-asia-26716572|title=Families told missing plane lost|date=24 MarchMaret 2014|accessdate=24 MarchMaret 2014|publisher=BBC News}}</ref> Inmarsat menyatakan bahwa analisis mereka didasarkan pada pengukuran [[efek Doppler]] pada transmisi "ping" pesawat.<ref>{{cite web|url=http://www.telegraph.co.uk/technology/news/10719304/How-British-satellite-company-Inmarsat-tracked-down-MH370.html|title=How British satellite company Inmarsat tracked down MH370|author=Sophie Curtis|date=24 MarchMaret 2014|publisher=Daily Telegraph}}</ref>

[[Berkas:MH370 last ping corridors.jpg|thumbjmpl|Kemungkinan lokasi terakhir MH370 berwarna merah, berdasarkan ping satelit terakhir pukul 08:11 waktu Malaysia]]

Pada tanggal 11 Maret, dilaporkan bahwa radar militer menunjukkan bahwa pesawat ini telah berbelok ke barat dan terus terbang selama 70 menit sebelum menghilang dari radar Malaysia di dekat [[Pulau Perak]],<ref>{{cite news|title=Malaysia Airlines MH370: Plane 'changed course'|url=http://www.bbc.com/news/world-asia-26527439|accessdate=11 MarchMaret 2014|publisher=BBC|date=11 MarchMaret 2014}}</ref><ref>{{cite news|url=http://www.telegraph.co.uk/news/worldnews/asia/malaysia/10687223/Malaysia-Airlines-MH370-plane-crash-live.html|title=Malaysia Airlines live: military denies report they tracked plane hundreds of miles off course|work=The Daily Telegraph|date=11 MarchMaret 2014|access-date=2014-03-24|archive-date=2014-03-12|archive-url=https://web.archive.org/web/20140312022500/http://www.telegraph.co.uk/news/worldnews/asia/malaysia/10687223/Malaysia-Airlines-MH370-plane-crash-live.html|dead-url=yes}}</ref> dan pesawat tersebut terlacak sedang terbang di ketinggian yang lebih rendah melintasi Malaysia ke Selat Malaka. Lokasinya diperkirakan {{convert|500|km}} dari kontak terakhirnya dengan radar sipil.<ref name="20140311Reuters">Danubrata, Eveline; Koswanage, Niluksi (11 MarchMaret 2014). [http://www.reuters.com/article/2014/03/11/us-malaysiaairlines-flight-idUSBREA2701720140311 "Malaysia military tracked missing plane to west coast: source"] {{Webarchive|url=https://web.archive.org/web/20140316015658/http://www.reuters.com/article/2014/03/11/us-malaysiaairlines-flight-idUSBREA2701720140311 |date=2014-03-16 }}. Reuters. RetrievedDiakses tanggal 11 MarchMaret 2014.</ref> Keesokan harinya, kepala [[Angkatan Udara Kerajaan Malaysia]] membantah laporan bahwa hasil lacakan tersebut tidak boleh disalahartikan.<ref>{{cite web|url=http://www.nst.com.my/latest/font-color-red-missing-mh370-font-rmaf-chief-denies-military-radar-report-1.509129|title=MISSING MH370: RMAF chief denies military radar report|work=New Straits Times|date=12 MarchMaret 2014|accessdate=12 MarchMaret 2014}}</ref><ref name="20140312StraitsTimes">[{{cite web|url=http://www.straitstimes.com/the-big-story/missing-mas-plane/story/missing-malaysia-airlines-plane-air-force-chief-denies-trackin "|title=Missing Malaysia Airlines plane: Air force chief denies tracking jet to Strait of Malacca"]. ''|work=[[The Straits Times]]''. |date=12 MarchMaret 2014. Retrieved |accessdate=12 MarchMaret 2014.}}</ref> Menurut [[Kementerian Transportasi (Vietnam)|Wakil Menteri Transportasi Vietnam]], Pham Quy Tieu, "Kami sudah memberitahu Malaysia pada hari kehilangan kontak dengan pesawat bahwa kami melihat pesawat tersebut berbelok kembali ke barat, namun tidak ditanggapi oleh Malaysia."<ref name="20140312StraitsTimes-vietnam">[{{cite web|url=http://www.straitstimes.com/the-big-story/missing-mas-plane/story/vietnam-says-it-told-malaysia-missing-plane-mh370-had-turned-b "|title=Vietnam says it told Malaysia that missing plane MH370 had turned back"]. ''|work=[[The Straits Times]]''. |date=12 MarchMaret 2014. Retrieved |accessdate=12 MarchMaret 2014.}}</ref>

Para pakar dari Amerika Serikat, yang ditugaskan untuk membantu penyelidikan secara berhati-hati sesuai aturan tanggung jawab,<ref>Matthew Wald (13 MarchMaret 2014), [http://www.nytimes.com/2014/03/14/world/asia/us-takes-back-seat-in-malaysia-jet-inquiry.html U.S. Takes Back Seat in Malaysian Jet Inquiry] ''[[The New York Times]]''</ref> menganalisis data radar dan langsung melaporkan bahwa data radar itu memang memperlihatkan bahwa pesawat terbang ke barat melintasi Semenanjung Malaya. Reuters dan ''[[The New York Times]]'' menulis bahwa perubahan rute ini menunjukkan bahwa pesawat ini berada di bawah kendali pilot yang sudah terlatih.<ref name="NYTaltitude">Michael Forsythe and Michael S. Schmidt (14 March 2014), [http://www.nytimes.com/2014/03/15/world/asia/malaysia-military-radar.html Sharp Changes in Altitude and Course After Jet Lost Contact] ''[[The New York Times]]''.</ref><ref name="CBSradar"/><ref>Niluksi Koswanage (14 MarchMaret 2014), [http://www.reuters.com/article/2014/03/14/us-malaysia-airlines-radar-exclusive-idUSBREA2D0DG20140314 Radar data suggests missing Malaysia plane deliberately flown way off course – sources] {{Webarchive|url=https://web.archive.org/web/20140324213243/http://www.straitstimes.com/sites/straitstimes.com/files/20140323/ST_20140323_1KAPLANE23_4073499.pdf |date=2014-03-24 }} [[Reuters]].</ref> ''The New York Times'' juga menulis bahwa pesawat mengalami perubahan ketinggian yang besar.<ref name="NYTaltitude"/>

Walaupun [[Bloomberg News]] mengatakan bahwa analisis "ping" satelit terakhir bisa jadi menandakan lokasi terakhir sekitar {{convert|1000|mi}} di sebelah barat [[Perth]], Australia,<ref>{{cite news|last=Levin|first=Alan|title=Missing Malaysian Jet Said Tracked to Ocean Off Australia|url=http://www.bloomberg.com/news/2014-03-14/india-looking-for-malaysian-jet-as-u-s-sees-air-piracy.html|accessdate=17 MarchMaret 2014|publisher=[[Bloomberg News]]|date=14 MarchMaret 2014|author2=Kharif, Olga}}</ref> Perdana Menteri Malaysia [[Najib Razak]] pada 15 Maret bahwa sinyal terakhir tersebut, diterima pukul 08:11 waktu Malaysia, mungkin berasal dari kawasan utara di sekitar [[Kazakhstan]].<ref>[{{cite web|url=http://abcnews.go.com/International/missing-malaysia-airlines-plane-airborne-hours/story?id=22922961 |title='Deliberate Act' Used to Steer Missing Plane Off Course] |publisher=[[ABC News]] |date=15 MarchMaret 2014.}}</ref> Najib menjelaskan bahwa sinyal-sinyal itu pasti berada di salah satu dari dua lokasi potensial: lokasi utara yang merentang kira-kira dari perbatasan Kazakhstan dan [[Turkmenistan]] hingga [[Thailand Utara]], atau lokasi selatan yang merentang dari [[Indonesia]] sampai Samudra Hindia selatan.<ref>{{cite news|url=http://www.abc.net.au/news/2014-03-15/malaysia-airlines-flight-mh370-deliberately-off-course/5323338|title=Malaysia Airlines flight MH370 deliberately flown off course, systems switched off: PM|publisher=ABC News|date=15 MarchMaret 2014}}</ref> Tak satu pun negara di rute penerbangan utara – Tiongkok, Thailand, Kazakhstan, Pakistan, dan India – yang memiliki bukti bahwa pesawat tersebut memasuki ruang udara mereka.<ref>*{{cite web |url=http://english.cntv.cn/program/newsupdate/20140320/102484.shtml |title=China: no evidence MH370 entered airspace |date=20 MarchMaret 2014 |publisher= CNTV English |access-date=2014-03-24 |archive-date=2014-03-22 |archive-url=https://web.archive.org/web/20140322075429/http://english.cntv.cn/program/newsupdate/20140320/102484.shtml |dead-url=yes }}<br>*{{cite web |url=http://indianexpress.com/article/world/asia/missing-malaysian-plane-mh-370-never-entered-thai-airspace/ |title=Missing Malaysian plane MH 370 never entered Thai airspace |work=The Indian Express |date=18 MarchMaret2014 2014}}<br>*{{cite web |author=by g surach |url=http://www.thestar.com.my/News/Nation/2014/03/16/missing-mh370-india-says-no-way-plane-entered-airspace/ |title=Missing MH370: No way plane flew over Indian airspace undetected – Nation |work=The Star |location=Malaysia |date=16 MarchMaret 2014 }}<br>*{{cite web |url=http://indiatoday.intoday.in/story/missing-malaysian-airlines-plane-jet-live-updates-mh-370/1/349906.html |title=Missing Malaysian jet LIVE updates: Kazakhstan says detected no unidentified planes when Malaysian jetliner vanished : Asia, News |work=India Today }}<br>*{{cite web |author=Haris Hussain And Farrah Naz Karim |url=http://www.nst.com.my/nation/general/font-color-red-missing-mh370-font-exclusive-flying-as-low-as-80-feet-possible-1.518644 |title=MISSING MH370: EXCLUSIVE: Flying as low as 80 feet 'possible' |work=New Straits Times |date=18 MarchMaret 2014 }}</ref>

Meski kemudian dikonfirmasi bahwa transmisi terakhir [[ACARS]] menunjukkan tidak ada yang aneh dan rute normal ke Beijing,<ref>{{cite web|last=Malaysian Minister of Transport|first=Press Release|title=Sunday, March 23, 06:00 PM MYT +0800 Malaysia Airlines MH370 Flight Incident - Press Statement by Ministry of Transport, Malaysia|url=http://www.malaysiaairlines.com/my/en/site/dark-site.html|publisher=Malaysian Airlines|accessdate=24 MarchMaret 2014|archive-date=2014-03-08|archive-url=https://web.archive.org/web/20140308134226/http://www.malaysiaairlines.com/my/en/site/dark-site.html|dead-url=yes}}</ref> ''The New York Times'' melaporkan pernyataan "pejabat senior Amerika Serikat" pada tanggal 17 Maret bahwa [[jalur penerbangan]] terjadwalnya sudah diprogram terlebih dahulu menuju koordinat barat yang tidak disebutkan melalui [[sistem pengelolaan penerbangan]] sebelum ACARS berhenti berfungsi,<ref name="nyt">{{cite news|url =http://www.nytimes.com/2014/03/18/world/asia/malaysia-airlines-flight.html|title =Lost Jet's Path Seen as Altered via Computer|work =[[The New York Times]]|authors=Matthew L. Wald, Michael S. Schmidt|date=17 MarchMaret 2014|accessdate =19 MarchMaret 2014}}</ref> dan [[titik jalur#Dalam penerbangan|titik jalur]] yang "melenceng jauh dari rute ke Beijing" ditambahkan ke sistem.<ref name="nyt"/> Dengan pemrograman ulang seperti itu, pesawat akan melakukan [[sudut belok|belokan tajam]] dengan sudut halus sekitar 20 derajat dan penumpangnya akan merasa biasa-biasa saja. Pemadaman seluruh komunikasi kabin secara mendadak memunculkan dugaan bahwa kehilangan pesawat ini diakibatkan oleh aksi kriminal.<ref name="nyt"/>

Upaya pencarian awal membuahkan banyak hasil yang tidak relevan. Seorang laksamana [[Angkatan Laut Rakyat Vietnam|Angkatan Laut Vietnam]] melaporkan bahwa kontak radar dengan pesawat terakhir kali terjadi di atas [[Teluk Thailand]].<ref name="Aviation Herald"/><ref>{{cite news|title=Vietnam detects signals from missing plane|url=http://www.sfgate.com/news/world/article/Report-Vietnam-detects-signals-from-missing-plane-5299001.php|newspaper=San Francisco Chronicle|date=7 March 2014|archiveurl=https://web.archive.isorg/Lsn4zweb/20140312024846/http://www.sfgate.com/news/world/article/Report-Vietnam-detects-signals-from-missing-plane-5299001.php|archivedate=14 March 2014-03-12|access-date=2014-03-24|dead-url=yes}}</ref> [[Jejak minyak]] yang terdeteksi di lepas pantai Vietnam pada tanggal 8 dan 9 Maret terbukti bukan [[bahan bakar penerbangan]].<ref>{{cite web|url=http://news.sky.com/story/1223246/malaysia-plane-iranian-bought-two-tickets|title=<!-- Missing Malaysia Airlines Plane Remains Mystery -->Malaysia Plane: Iranian Bought Two Tickets|publisher=[[Sky News]]|date=11 March 2014|accessdate=10 March 2014}}</ref><ref>{{cite web|title=Oil slick spotted by rescuers 'not from missing Malaysia Airlines flight', tests reveal|work=South China Morning Post|accessdate=10 March 2014|url=http://www.scmp.com/news/asia/article/1445057/missing-malaysia-airlines-flight-likely-have-disintegrated-35000-feet}}</ref> Temuan [[flotsam dan jetsam|serpihan]] sekitar {{convert|80|km|mi|abbr=on}} di selatan [[Pulau Thổ Chu]] pada tanggal 9 Maret juga terbukti bukan berasal dari pesawat terbang.<ref>{{cite web|url=http://aviation-safety.net/database/record.php?id=20140308-0|title=Accident description|publisher=Aviation Safety Network|date=10 March 2014|accessdate=10 March 2014}}</ref> Pencarian yang dipandu citra satelit Tiongkok yang diambil tanggal 9 Maret memperlihatkan tiga objek mengambang berukuran sekitar {{convert|24|x|22|m|foot}} di {{coord|6.7|N|105.63|E}} juga tidak membuahkan hasil;<ref name="malaysiasun1">{{cite news|title=China Releases Images of What Could be Parts of Missing Plane|url=http://www.malaysiasun.com/index.php/sid/220408767/scat/48cba686fe041718/ht/China-Releases-Images-of-What-Could-be-Parts-of-Missing-Plane|accessdate=13 March 2014|publisher=Malaysia Sun|archive-date=2014-03-13|archive-url=https://web.archive.org/web/20140313053716/http://www.malaysiasun.com/index.php/sid/220408767/scat/48cba686fe041718/ht/China-Releases-Images-of-What-Could-be-Parts-of-Missing-Plane|dead-url=yes}}</ref><ref>{{cite news|title=Malaysia Airlines Flight 370: Vietnam sees no debris in area flagged by Chinese|url=http://edition.cnn.com/2014/03/13/world/asia/malaysia-airlines-plane/index.html?hpt=hp_t1|accessdate=13 March 2014|publisher=CNN News}} (coordinates in the CNN video)</ref> pejabat Vietnam mengatakan bahwa wilayah tersebut telah "disisir secara menyeluruh".<ref>{{cite news|last=Brummitt|first=Chris|url=http://hosted2.ap.org/CARIE/0260ea4c3e85456b80715585ba3c7b5b/Article_2014-03-13-Malaysia-Plane/id-5e2a35290e794992b6a975e969348ddd|title=Malaysia: No debris at spot shown on China images|agency=Associated Press }}</ref><ref>{{cite web |url=http://www.washingtonpost.com/world/china-satellite-spots-floating-objects/2014/03/13/72688034-aa68-11e3-b61e-8051b8b52d06_story.html |title=U.S. suspects missing flight flew for hours after last confirmed location, report says |work=The Washington Post |date=28 February 2011}}</ref>

[[Angkatan Laut Kerajaan Thailand]] mengalihkan fokus pencariannya dari Teluk Thailand dan Laut Tiongkok Selatan atas permintaan Malaysia. Saat itu Malaysia sedang mempelajari kemungkinan pesawat berbelok kembali dan jatuh di [[Laut Andaman]] dekat perbatasan Thailand.<ref>{{cite web | url=http://edition.cnn.com/2014/03/09/world/asia/malaysia-airlines-plane/ | title=New leads explored in hunt for missing Malaysia Airlines flight | publisher=[[CNN News]] | date=9 March 2014 | accessdate=10 March 2014 | author=Jim Clancy and Mark Morgenstein}}</ref> The chief of thePanglima [[RoyalAngkatan MalaysianUdara AirKerajaan ForceMalaysia]], Rodzali Daud, claimedmengklaim thatrekaman militarymiliter recordings ofdari [[radar|radar signalssinyal]] did not exclude the possibility oftidak themenutup aircraftkemungkinan turningbahwa backpesawat onkembali itske flightjalur pathpenerbangannya.<ref name="nbcnews1">{{cite web|url=http://www.nbcnews.com/storyline/missing-jet/missing-malaysia-airlines-jet-may-have-turned-back-officials-n47861|title=Missing Malaysia Airlines Jet May Have Turned Back: Officials|publisher=[[NBC News]]|date=9 March 2014|accessdate=9 March 2014|author=Pete Williams, Robert Windrem and Richard Esposito}}</ref><ref>{{cite web|title= Reports: Missing Malaysia Airlines plane 'may have turned back'|url=http://www.bbc.com/news/world-asia-26502843|publisher=BBC News|date=9 March 2014|accessdate=9 March 2014}}</ref> [[Radius]] pencarian diperbesar dari radius asli {{convert|20|nmi|km mi|lk=on }} dari posisi terakhir yang diketahui,<ref>{{cite web|url=http://www.themalaymailonline.com/malaysia/article/dca-search-for-mh370-intensifies-with-74-vessels-50-nautical-miles-near-las|title=DCA: Search for MH370 intensifies with 74 vessels, 50 nautical miles near last-known site|work=The Malay Mail|date=9 March 2014|accessdate=19 March 2014|author=Melissa Chi}}</ref> di selatan Pulau Thổ Chu, menjadi {{convert|100|nmi|km mi}}. Wilayah tersebut disisir dan diperluas hingga [[Selat Malaka]] di sepanjang pesisir barat [[Semenanjung Malaya]]. Perairan di timur Malaysia di Teluk Thailand dan perairan Selat Malaka di sepanjang pesisir barat Malaysia juga menjadi target pencarian.<ref name=20140310cbcnews>Hildebrandt, Amber (10 March 2014). [http://www.cbc.ca/news/world/malaysia-airlines-flight-mh370-mystery-compounded-by-mystery-1.2566983 Malaysia Airlines Flight MH370: 'Mystery compounded by mystery']. CBC News.</ref><ref>{{cite web|title=Malaysia Airlines: What we know about flight MH370|publisher=BBC|date=10 March 2014|url=http://www.bbc.com/news/world-asia-26503141|accessdate=10 March 2014}}</ref><ref name=20140309bbcnews>{{cite web|url=http://www.bbc.co.uk/news/world-asia-26502843|title=Missing Malaysia plane: Search area widened|date=9 March 2014|publisher=BBC News}}</ref>

Pada tanggal 12 Maret, pihak berwenang mulai menyisir Laut Andaman di barat laut Selat Malaka. Pemerintah Malaysia meminta bantuan India untuk mencari pesawat di daerah tersebut.<ref name=20140312bbcnews>{{cite web|url=http://www.bbc.com/news/world-asia-26527390|title=Malaysia Airlines MH370: Confusion over plane last location|date=12 March 2014|publisher=BBC News}}</ref> Tanggal 13 Maret, [[Sekretaris Pers Gedung Putih]] mengatakan bahwa "wilayah pencarian lainnya mungkin akan ditambahkan di Samudra Hindia berdasarkan informasi terbaru"<ref name=20140313reuters/><ref>[http://www.telegraph.co.uk/news/worldnews/asia/malaysia/10687223/Malaysia-Airlines-MH370-plane-crash-live.html New MH370 search area may be opened in Indian Ocean – White House] {{Webarchive|url=https://web.archive.org/web/20140312022500/http://www.telegraph.co.uk/news/worldnews/asia/malaysia/10687223/Malaysia-Airlines-MH370-plane-crash-live.html |date=2014-03-12 }} ''[[The Daily Telegraph]]'' 13 March 2014.</ref> dan seorang pejabat senior di [[The Pentagon]] berkata kepada [[ABC News]]: "Kami menduga pesawat itu jatuh di Samudra Hindia."<ref name="PentagonsaysIndianOcean">[[Martha Raddatz]] (13 March 2014), [http://abcnews.go.com/International/us-officials-malaysia-airline-crashed-indian-ocean/story?id=22894802 US Officials Have 'Indication' Malaysia Airline Crashed into Indian Ocean] [[ABC News]].</ref> Tanggal 17 Maret, Australia sepakat untuk memimpin pencarian di lokasi selatan dari [[SumateraSumatra]] hingga Samudra Hindia Selatan.<ref>{{cite news|url=http://www.thestar.com.my/News/Nation/2014/03/17/Missing-MH370-Australia/|title=Missing MH370: Australia to lead southern search for MH370|work=The Star|date=17 March 2014}}</ref><ref>{{cite news|url=http://www.canberratimes.com.au/federal-politics/political-news/australia-agrees-to-lead-search-in-indian-ocean-for-missing-malaysia-airlines-flight-mh370-20140317-34xay.html|title=Australia agrees to lead search in Indian Ocean for missing Malaysia Airlines flight MH370|work=The Canberra Times|date=17 March 2014|access-date=2014-03-24|archive-date=2014-05-17|archive-url=https://web.archive.org/web/20140517130658/http://www.canberratimes.com.au/federal-politics/political-news/australia-agrees-to-lead-search-in-indian-ocean-for-missing-malaysia-airlines-flight-mh370-20140317-34xay.html|dead-url=yes}}</ref> Pencarian ini akan dipimpin oleh [[Australian Maritime Safety Authority]]. Wilayah seluas {{convert|600000|sqkm|sqmi|abbr=on}} antara Australia dan [[Kepulauan Kerguelen]] yang letaknya lebih dari {{convert|3000|km}} dari [[Perth]] akan dijelajahi oleh beberapa kapal dan pesawat milik Australia, Selandia Baru, dan Amerika Serikat.<ref>{{cite news|url=http://www.abc.net.au/news/2014-03-18/australia-takes-charge-of-multinational-search/5328904|title=Malaysia Airlines MH370: AMSA to coordinate new search 3,000 kilometres south-west of Perth|publisher=ABC News|date=18 March 2014}}</ref>

Tanggal 20 Maret, Perdana Menteri Australia, [[Tony Abbott]], mengumumkan di hadapan parlemen bahwa dua objek yang mungkin terkait dengan pesawat, salah satunya sepanjang {{convert|24|m|ft|abbr=on}}, tertangkap oleh satelit di Samudra Hindia pada tanggal 16 Maret, {{convert|2500|km|mi|abbr=on}} di barat daya [[Perth]] (koordinat {{coord|44|03|02|S|91|13|27|E|type:landmark|display=inline}}), yang kedalaman lautnya bisa mencapai {{convert|5000|m}}.<ref name="abbot20march" /><ref name=NZH>{{cite news|title=Missing plane: Objects spotted in water|url=http://www.nzherald.co.nz/world/news/article.cfm?c_id=2&objectid=11223181|accessdate=20 March 2014|newspaper=[[The New Zealand Herald]]|date=20 March 2014}}</ref><ref name=NBCNews>{{cite news|title=Possible Parts of Missing Jet Spotted Off Australia: Prime Minister|url=http://www.nbcnews.com/storyline/missing-jet/possible-parts-missing-jet-spotted-australia-prime-minister-n57296|accessdate=20 March 2014|newspaper=[[NBC]] News|date=20 March 2014}}</ref><ref name=Kelly>{{cite news|last=Kelly|first=Ross|title=Australia Says Satellites Identified Objects Possibly Related to Missing Malaysia Airlines Flight|url=http://online.wsj.com/article/BT-CO-20140319-713424.html|accessdate=20 March 2014|newspaper=[[The Wall Street Journal]]|date=20 March 2014|archive-date=2014-03-22|archive-url=https://web.archive.org/web/20140322145636/http://online.wsj.com/article/BT-CO-20140319-713424.html|dead-url=yes}}</ref> [[Pesawat patroli laut]] Lockheed P-3 Orion <!-- No need to be specific, an AP-3 is just a P-3 with Australian sensor equipment --> milik Australia tiba di daerah tersebut pada pukul 02:50 UTC. Kapal [[HMAS Success (OR 304)|HMAS ''Success'']] milik AL Australia, kapal AL Myanmar, pesawat patroli laut Boeing P-8 Poseidon angkatan laut Amerika Serikat, dua pesawat Orion (satu dari Australia dan satu lagi dari Selandia Baru), dan satu pesawat kargo Lockheed C-130 Hercules juga diterbangkan ke wilayah tersebut.<ref name="AMSA6">{{cite web|url=http://www.amsa.gov.au/media/documents/20032014MediaReleasePossibleDebrisFoundMH370.pdf|title=Search operation for Malaysia airlines aircraft: Update 6|publisher=Australian Maritime Safety Authority}} ([http|access-date=2014-03-24|archive-date=2014-03-20|archive-url=https://www.webcitation.org/6OCwc8fCM Archive]?url=http://www.amsa.gov.au/media/documents/20032014MediaReleasePossibleDebrisFoundMH370.pdf|dead-url=unfit}}()</ref> Dua pesawat kargo militer [[Ilyushin Il-76]] milik Tiongkok<ref>{{cite news|url=http://news.xinhuanet.com/english/china/2014-03/22/c_133206079.htm|title=Two Chinese Il-76s fly to Australia from Malaysia to search for missing plane|agency=Xinhua News Agency|date=22 March 2014}}</ref><ref>{{cite news|url=http://australianaviation.com.au/2014/03/chinese-il-76s-join-perth-based-mh370-search/|title=Chinese Il-76s join Perth-based MH370 search|publisher=Australian Aviation|date=22 March 2014}}</ref> dan dua Orion milik Jepang tiba di [[RAAF Base Pearce]] bergabung untuk membantu tim pencari.<ref>{{cite news|url=http://news.xinhuanet.com/english/world/2014-03/23/c_133207947.htm|title=Two Japanese military aircraft arrive in Perth|agency=Xinhua News Agency|date=23 March 2014}}</ref> Pesawat terbang dan kapal penumpang juga membantu pencarian.<ref name="AMSA6"/><ref name="AMSA11">{{cite web|url=http://amsa.gov.au/media/documents/21032014_MediaRelease_Update11MH370.pdf|title=Search operations resume for Malaysia Airlines MH370: Update 11|publisher=Australian Maritime Safety Authority|date=23 March 2014|access-date=2014-03-24|archive-date=2014-03-24|archive-url=https://web.archive.org/web/20140324031752/https://www.amsa.gov.au/media/documents/21032014_MediaRelease_Update11MH370.pdf|dead-url=yes}}</ref><ref name="AMSA6"/><ref>{{cite news|url=http://www.smh.com.au/national/the-search-for-missing-malaysia-airlines-plane-mh370-20140321-356k3.html|title=The search for missing Malaysia Airlines plane MH370|work=The Sydney Morning Herald|date=21 March 2014}}</ref><ref>{{cite news|url=http://www.canberratimes.com.au/national/topline-jets-join-australian-hunt-for-missing-plane-20140322-35adi.html|title=Topline jets join Australian hunt for missing plane|work=The Canberra Times|date=23 March 2014|access-date=2014-03-24|archive-date=2014-05-20|archive-url=https://web.archive.org/web/20140520025043/http://www.canberratimes.com.au/national/topline-jets-join-australian-hunt-for-missing-plane-20140322-35adi.html|dead-url=yes}}</ref>

[[Berkas:USS Kidd conducting search off Andaman sea for flight MH370.jpg|thumbjmpl|Awak [[USS Kidd (DDG-100)|USS ''Kidd'']] mencari pesawat di [[Laut Andaman]]]]

Buncombe, Andrew; Withnall, Adam (10 March 2014). [http://www.independent.co.uk/news/world/asia/malaysia-airlines-flight-mh370-search-teams-scramble-helicopters-and-ships-to-investigate-sighting-of-possible-life-raft-9180759.html "Malaysia Airlines Flight MH370: Oil slicks in South China Sea ‘not from missing jet’, officials say"]. ''The Independent''.</ref><ref name=20140309bbcnews/> [[Comprehensive Nuclear-Test-Ban Treaty Organization Preparatory Commission]] menganalisis informasi dari serangkaian stasiun deteksi [[suara infra]] milik mereka, tetapi gagal menemukan suara apapun yang dikeluarkan oleh Penerbangan 370.<ref>{{cite web|title=IDC infrasound search for missing flight Malaysian Airlines MH370|url=http://www.ctbto.org/fileadmin/user_upload/public_information/2014/IDC_infrasound_MalaysianAirlines_MH370.pdf|publisher=CTBTO Prep Com|accessdate=12 March 2014|archive-date=2014-03-12|archive-url=https://web.archive.org/web/20140312213425/http://www.ctbto.org/fileadmin/user_upload/public_information/2014/IDC_infrasound_MalaysianAirlines_MH370.pdf|dead-url=yes}}</ref>

11 negara lainnya ikut bergabung dalam misi pencarian pada 17 Maret setelah Malaysia meminta lebih banyak bantuan dan total akhirnya mencapai 26 negara.<ref name="thestar18">{{cite web|url=http://www.thestar.com.my/News/Nation/2014/03/18/Number-of-countries-in-SAR-operations-increases-to-26/|title=Number of countries in SAR operations increases to 26|work=The Star|date=18 March 2014|accessdate=18 March 2014}}</ref> Meski tidak berpartisipasi dalam pencarian, Sri Lanka mengizinkan pesawat pencari memakai [[ruang udara]]nya.<ref>{{cite web|title=Maldives island residents see 'low flying jumbo jet'|url=http://www.firstpost.com/world/live-maldives-island-residents-see-low-flying-jumbo-jet-1424627.html|accessdate=18 March 2014}}</ref> Aset yang dikerahkan Malaysia meliputi pesawat militer bersayap tetap dan helikopter militer,<ref name="de">{{cite web|url=http://www.dailyexpress.com.my/news.cfm?NewsID=88638|title=Too early to come to any conclusion, says Najib|work=[[Daily Express (Sabah)|Daily Express]]|date=9 March 2014|accessdate=9 March 2014}}</ref> dan kapal milik angkatan laut dan [[Malaysian Maritime Enforcement Agency]].<ref name="de"/><ref>{{cite web|url=http://www.skynews.com.au/topstories/article.aspx?id=956566|title=Vietnam, Malaysia mount search for plane|date=8 March 2014|publisher=Sky News Australia|access-date=2014-03-08|archive-date=2014-03-08|archive-url=https://web.archive.org/web/20140308090210/http://www.skynews.com.au/topstories/article.aspx?id=956566|dead-url=yes}}</ref><ref>{{cite news|url=http://www.theborneopost.com/2014/03/09/malaysia-widens-area-of-search-for-missing-mas-aircraft/|title=Malaysia widens area of search for missing MAS aircraft|date=9 March 2014|accessdate=9 March 2014|work=Borneo Post|agency=[[Bernama]]}}</ref> Pusat koordinasi pencarian didirikan di National Disaster Control Centre (NDCC) di [[Pulau Meranti]], Cyberjaya.<ref>{{cite web|url=http://www.thestar.com.my/News/Nation/2014/03/09/Missing-MAS-flight-Malaysia-grateful-for-assistance/|title=Missing MAS flight: Malaysia grateful for assistance in search and rescue operations, says Anifah|work=The Star|date=9 March 2014|accessdate=9 March 2014}}</ref> Negara tujuan penerbangan, Tiongkok, mengerahkan [[fregat Tipe 053H3]] ''Mianyang'', kapal polisi laut No. 3411,<ref>{{cite web|url=http://news.xinhuanet.com/english/china/2014-03/10/c_126247107.htm|title=Chinese warship arrives in search area for missing Malaysian airliner, more on way|date=10 March 2014|author=Mu Xuequan|work=Xinhuanet}}</ref> [[kapal penghancur Tipe 052C]] ''Haikou'', [[dok angkut amfibi Tipe 071]] ''JinggangShan'', ''[[Kunlun Shan (998)|KunlunShan]]'', kapal patroli ''Haixun 31'', [[kapal bantuan bawah air Tipe 925]] ''Yongxingdao'',<ref>{{cite web|url=http://news.xinhuanet.com/english/china/2014-03/15/c_133188450.htm|title=Chinese warships take MH370 search to Strait of Malacca|date=15 March 2014|author=An|work=Xinhuanet}}</ref> kapal penelitian ''[[Xuelong]]'', kapal penyelamat ''Haixun 01'', beberapa kapal dagang,<ref>{{cite web|url=http://news.xinhuanet.com/english/special/2014-03/21/c_133204967.htm|title=Chinese navy vessels to search south Indian Ocean|date=21 March 2014|author=yan|work=Xinhuanet}}</ref> kapal penyelamat ''Nanhaijiu 101'', dan [[kapal suplai Tipe 903]] ''Qiandaohu''.<ref>{{cite web|url=http://news.xinhuanet.com/english/2014-03/18/c_133196065.htm|title=Chinese rescue vessel Nanhaijiu 101 heads toward Singapore|author=Zhao Yingquan|work=Xinhuanet}}</ref> Selain itu, sejumlah satelit militernya diberi tugas tambahan untuk mencari pesawat ini.<ref>{{cite news|url=http://news.xinhuanet.com/english/china/2014-03/10/c_133175721.htm|title=China deploys satellites for missing plane search|agency=[[Xinhua News Agency]]|date=10 March 2014|accessdate=10 March 2014}}</ref> Tiongkok juga mengirim dua [[Ilyushin Il-76]] ke [[RAAF Base Pearce]] dekat [[Perth]] untuk membantu pencarian di Samudra Hindia Selatan.<ref name="autogenerated1">{{cite web|title=Malaysia Airlines Flight 370: Missing plane search timeline LIVE UPDATES|url=http://rt.com/news/malaysian-airlines-plane-missing-news-574/|publisher=RT|location=Russia|accessdate=20 March 2014}}</ref><ref name=bbc-20140322>{{cite news|url=http://www.bbc.co.uk/news/world-asia-26697048|title=Malaysia plane search: China checks new 'debris' image|publisher=BBC|date=22 March 2014|accessdate=22 March 2014}}</ref><ref>{{cite web | url= http://english.cri.cn/6909/2014/03/14/53s817532.htm| title= Chinese Vessel Heads to Strait of Malacca in Jet Search| work= CRI English | date= 14 March 2014 | accessdate= 20 March 2014| archive-date= 2014-03-20| archive-url= https://web.archive.org/web/20140320185855/http://english.cri.cn/6909/2014/03/14/53s817532.htm| dead-url= yes}}</ref> Other nations provided the following asset types:

* Brunei: {{sclass|Darussalam|kapal patroli lepas pantai}}.<ref>{{cite web|url=http://www.brudirect.com/national/national/national-headlines/16746-spiritual-healing-mass-sunnat-hajat-prayer-for-mh370|title=Spiritual Healing: Mass Sunnat Hajat Prayer for MH370|publisher=BruDirect|date=14 March 2014|accessdate=16 March 2014|archive-date=2014-03-16|archive-url=https://web.archive.org/web/20140316065202/http://www.brudirect.com/national/national/national-headlines/16746-spiritual-healing-mass-sunnat-hajat-prayer-for-mh370|dead-url=yes}}</ref>

* PerancisPrancis: tim dari [[Bureau d'Enquêtes et d'Analyses pour la Sécurité de l'Aviation Civile]] (BEA).<ref>{{cite web|url=http://www.nst.com.my/latest/bea-to-help-with-search-and-rescue-mission-1.518677|title=BEA to help with search and rescue mission|work=New Straits Times|date=18 March 2014|accessdate=18 March 2014}}</ref>

* Indonesia: korvet [[korvet kelas Parchim|KRI ''Sutanto'']], kapal patroli [[HMAS Bombard (P 99)|KRI ''Siribua'']], dan kapal patroli cepat [[KRI Matacora (823)|KRI ''Matacora'']], [[KRI Tarihu 829|KRI ''Tarihu'']], dan [[KRI Krait (827)|KRI ''Krait'']];<ref name="JakartaPost">{{cite web |title=RI deploy warships as search expands to Malacca Strait|author=Bagus BT Saragih|url=http://www.thejakartapost.com/news/2014/03/09/ri-deploy-warships-search-expands-malacca-strait.html|date=9 March 2014|work=The Jakarta Post|accessdate=10 March 2014}}</ref><ref name="Janes10Mar">{{cite news|url=http://www.janes.com/article/35134/multinational-maritime-forces-co-operate-in-malaysian-aircraft-search|title=Multinational maritime forces co-operate in Malaysian aircraft search|publisher=Jane's Navy International|date=10 March 2014}}</ref> [[CASA C-212 Aviocar|IPTN NC-212]] maritime patrol aircraft.<ref>{{cite web | url=http://www.thejakartapost.com/news/2014/03/09/ri-deploys-warships-airplane-scs-search-missing-aircraft.html | title=RI deploys warships, aircraft to SCS to search for missing aircraft | work=[[The Jakarta Post]] | date=9 March 2014 | accessdate=9 March 2014 | author=Fadli}}</ref>

* Rusia: satelit [[Resurs-P No.1]].<ref>{{cite web |url=http://www.federalspace.ru/20345/ |title= Российские спутники помогают искать пропавший самолет рейса MH370 |language=Russian |publisher=[[Russian Federal Space Agency]] |accessdate=19 March 2014 |archive-date=2014-03-27 |archive-url=https://web.archive.org/web/20140327070214/http://www.federalspace.ru/20345/ |dead-url=yes }}</ref>

* Taiwan: C-130 Hercules angkatan udara; [[ROCS Tian Dan (FFG-1110)|ROCS ''Tian Dan'']] dan satu {{sclass|La Fayette|fregat}}; dua kapal patroli penjaga pantai.<ref>{{cite news|title=Taiwan joins search for Malaysia Airlines Flight 370|url=http://www.taiwantoday.tw/ct.asp?xItem=215264&CtNode=414|accessdate=12 March 2014|newspaper=Taiwan Today|date=11 March 2014|archiveurl=httphttps://www.webcitation.org/6O0PjE6tH?url=http://www.taiwantoday.tw/ct.asp?xItem=215264|archivedate=12 March 2014-03-12|dead-url=no}}</ref>

* Britania Raya: tim penyidik [[Air Accidents Investigation Branch]] (AAIB).<ref>{{cite web|url=http://www.thestar.com.my/News/Nation/2014/03/14/missing-mh370-british-team-arrives-to-assist-in-probe/|title=Missing MH370: Britain's air accident investigation team arrives|work=The Star|date=14 March 2014|accessdate=16 March 2014}}</ref> [[HMS Echo (H87)|HMS ''Echo'']] – a multi-role hydrographic surveysurvei ship.<ref>{{cite web|url=http://www.itv.com/news/update/2014-03-20/uk-sending-hms-echo-to-assist-in-malaysia-plane-search/|title=UK sending HMS Echo to assist in Malaysia plane search|publisher=[[ITV (TV network)|ITV]]|date=21 March 2014|accessdate=21 March 2014}}</ref>

* Amerika Serikat: pesawat P-3 Orion dan Boeing P-8 angkatan laut;<ref>{{cite web |url=http://www.navy.mil/submit/display.asp?story_id=79729 |title=US Navy's P-8A Poseidon Arrives in Australia, Continues MH370 Search |publisher=U.S. Seventh Fleet Public Affairs |date=19 March 2014 | accessdate=23 March 2014 |archive-date=2014-03-23 |archive-url=https://web.archive.org/web/20140323075321/http://www.navy.mil/submit/display.asp?story_id=79729 |dead-url=yes }}</ref> kapal {{USS|Kidd|DDG-100|6}} dan {{USS|Pinckney|DDG-91|6}} angkatan laut dilengkapi helikopter Sikorsky MH-60R Seahawk;<ref name="USNavy">{{cite web | url=http://www.navy.mil/submit/display.asp?story_id=79566 | title=US P-3 and USS ''Pinckney'' helicopter over Malaysian Airlines search site| publisher=U.S. Seventh Fleet Public Affairs | date=9 March 2014 | accessdate=9 March 2014}}</ref><ref name="NBC">{{cite web | url=http://www.nbcnews.com/storyline/missing-jet/u-s-sends-destroyer-aid-search-malaysia-airlines-jet-n47716 | title=U.S. Sends Destroyer to Aid Search for Malaysia Airlines Jet | publisher=[[NBC News]] | date=8 March 2014 | accessdate=8 March 2014}}</ref><ref>{{cite news|title=US Navy sending P-8A Poseidon to assist in search for missing flight MH370|url=https://my.news.yahoo.com/us-navy-sending-p-8a-poseidon-assist-search-145439565.html|newspaper=The Malaysian Insider|date=13 March 2014}}</ref> tim dari [[National Transportation Safety Board]] (NTSB).<ref name="ntsb"/>

Penerbangan 370 dioperasikan menggunakan [[Boeing 777-200ER|Boeing 777-2H6ER]],{{efn|Pesawat ini merupakan model Boeing 777-200ER (Extended Range); Boeing memberi [[Daftar kode pelanggan Boeing|kode pelanggan unik]] untuk setiap perusahaan yang membeli salah satu pesawatnya dalam bentuk [[infiks]] di nomor modelnya pada waktu pesawat itu dibangun. Kode untuk Malaysia Airlines adalah "H6", jadi "777-2H6ER".<ref>{{cite book|last= Pither|first= Tony|title= The Boeing 707 720 and C-135|year= 1998|publisher= [[Air-Britain|Air-Britain (Historians) Ltd]]|location=England|isbn=0-85130-236-X}}</ref>}} [[nomor seri]] 28420, [[registrasi pesawat|registrasi]] 9M-MRO. Sebagai Boeing 777 ke-404 yang diproduksi,<ref name="Airfleets">{{cite web|url=http://www.airfleets.net/ficheapp/plane-b777-28420.htm|work=Airfleets|title=Malaysia Airlines 9M-MRO (Boeing 777 – MSN 28420)|accessdate=7 March 2014}}</ref> pesawat ini pertama kali terbang tanggal 14 Mei 2002 dan langsung dikirim ke Malaysia Airlines pada 31 Mei 2002. Pesawat ini dirancang untuk mengangkut 282 penumpang – 35 di kelas bisnis dan 247 di ekonomi.<ref>{{cite web |url= http://www.malaysiaairlines.com/hq/en/mh-experience/our-fleet/boeing-777-200.html |title= Boeing 777-200 – Fleet |publisher= Malaysia Airlines |accessdate= 12 March 2014}}</ref> 9M-MRO telah terbang selama 53.460 jam dan memiliki 7.525 [[:wikt:cycle|siklus]] terbang,<ref name=Fligh396801>{{cite news|title= MAS 777 underwent maintenance in Feb|first= Mavis|last= Toh|location= Singapore|publisher= [[Flightglobal]]|date= 9 March 2014|url= http://www.flightglobal.com/news/articles/mas-777-underwent-maintenance-in-feb-396801/|archiveurl= httphttps://web.archive.org/web/20140309212334/http://www.flightglobal.com/news/articles/mas-777-underwent-maintenance-in-feb-396801/|archivedate= 9 March2014-03-09|access-date= 2014-03-24|dead-url= no}}</ref> dan sebelumnya tidak pernah terlibat insiden besar apa pun.<ref>{{cite web|url=http://www.flightglobal.com/news/articles/missing-mas-777-200-had-no-major-prior-incidents-396793/ |title=Missing MAS 777-200 had no major prior incidents – 3/8/2014 |publisher=Flightglobal |accessdate=9 March 2014}}</ref> Meski begitu, pernah terjadi insiden kecil saat taksi di [[Bandar Udara Internasional Pudong Shanghai]] pada Agustus 2012 sehingga ujung sayapnya patah.<ref>{{cite news|url=http://news.xinhuanet.com/fortune/2012-08/10/c_123564158.htm|title=浦东机场滑行跑道内东航马航两飞机剐蹭 ["Two planes from China Eastern Airlines and Malaysian Airlines snag each other on the runway of Shanghai Pudong Airport"]|agency=Xinhua News Agency|date=26 June 2012|accessdate=9 March 2014|language=Chinese}}</ref> [[Pemeriksaan pengelolaan pesawat|Pengecekan 'A' perawatan]] terakhirnya dilaksanakan tanggal 23 Februari 2014.<ref name=Fligh396801/>

Para pakar penerbangan umumnya menganggap Boeing 777 sebagai pesawat dengan catatan keselamatan yang "nyaris bersih"<ref name="Guradian-safe">{{cite web|url=http://www.theguardian.com/world/2014/mar/08/malaysia-airlines-experts-surprised-at-disappearance-of-very-safe-boeing-777|title=Malaysia Airlines: experts surprised at disappearance of 'very safe' Boeing 777 |work=The Guardian|date=8 March 2014|accessdate=9 March 2014}}</ref> dan salah satu pesawat komersial terbaik di dunia.<ref name="reuters-safe">{{cite news|url=http://www.reuters.com/article/2014/03/08/us-malaysia-airlines-profile-idUSBREA2707Y20140308|title=Malaysia Airlines has one of Asia's best safety records|agency=[[Reuters]]|date=8 March 2014|accessdate=9 March 2014|archive-date=2014-03-09|archive-url=https://web.archive.org/web/20140309213706/http://www.reuters.com/article/2014/03/08/us-malaysia-airlines-profile-idUSBREA2707Y20140308|dead-url=yes}}</ref> Sejak penerbangan komersial pertamanya bulan Juni 1995, hanya dua kecelakaan serius yang pernah dialami Boeing 777,<!--in over 5 million flights CHECK & CITE--> [[British Airways Penerbangan 38]] tahun 2008 dan [[Asiana Airlines Penerbangan 214]] tahun 2013.

! stylescope="text-align:left;col" | KebangsaanNegara

|! stylescope="text-align:left;row" | {{Flaguflagicon|Indonesia|size=23px}} Indonesia

|! stylescope="text-align:left;row" | {{Flaguflagicon|Iran|size=23px}} Iran{{efn|Manifest yang dirilis Malaysia Airlines mencantumkan seorang warga negara Austria dan seorang warga negara Italia. Keduanya teridentifikasi sebagai dua warga negara Iran yang menaiki Penerbangan 370 menggunakan paspor curian.<ref name="BBC Iranian">{{cite news|title=Stolen jet passport 'no terror link'|url=http://www.bbc.com/news/worldBBC_2014-asia03-26525281|publisher=BBC News|accessdate=11 March 2014|date=11 March 2014}}<11_a"/ref>}}

|! stylescope="text-align:left;row" | {{Flaguflagicon|Malaysia|size=23px}} Malaysia{{efn|38 penumpang dan 12 awak.}}

|! stylescope="text-align:left;row" | {{Flaguflagicon|New Zealand}} Selandia Baru|size=23px}}

|! stylescope="text-align:left;row" | {{Flaguflagicon|Ukraine|size=23px}} Ukraina

|! style="text-align:left;" | {{Flagu|AmerikaTotal Serikat|size=23px}}(14 Kebangsaan)

Malaysia Airlines merilis nama dan kebangsaan 227 penumpang dan 12 awaknya sesuai [[manifest penerbangan]].<ref>{{cite press release| title=MH370 Passenger Manifest| url=http://www.malaysiaairlines.com/content/dam/mas/master/en/pdf/Malaysia%20Airlines%20Flight%20MH%20370%20Passenger%20Manifest.pdf| publisher=[[Malaysia Airlines]]| date=8 March 2014| archiveurl=http://www.webcitation.org/6Nv7NSlhu| archivedate=8 March 2014}} {{Cite web |url=http://www.malaysiaairlines.com/content/dam/mas/master/en/pdf/Malaysia%20Airlines%20Flight%20MH%20370%20Passenger%20Manifest.pdf |title=Salinan arsip |access-date=2014-03-08 |archive-date=2014-03-08 |archive-url=https://web.archive.org/web/20140308153900/http://www.malaysiaairlines.com/content/dam/mas/master/en/pdf/Malaysia%20Airlines%20Flight%20MH%20370%20Passenger%20Manifest.pdf |dead-url=yes }}</ref>

Dua per tiga dari 227 penumpang Penerbangan 370 adalah warga negara Tiongkok, termasuk 19 seniman bersama enam anggota keluarga dan empat staf yang hendak pulang setelah mengikuti pameran kaligrafi di Kuala Lumpur; 38 penumpang lainnya adalah warga negara Malaysia. Sisanya berasal dari 13 negara.<ref>{{cite news|title=Behind jet's passenger list is rich human tapestry|url=http://www.washingtonpost.com/business/behind-jets-passenger-list-is-rich-human-tapestry/2014/03/09/11c7ae82-a791-11e3-8a7b-c1c684e2671f_story.html|agency=Associated Press|work=The Washington Post|accessdate=10 March 2014|date=9 March 2014|archiveurl=https://archive.today/20140310163520/http://www.washingtonpost.com/business/behind-jets-passenger-list-is-rich-human-tapestry/qBNKT2014/03/09/11c7ae82-a791-11e3-8a7b-c1c684e2671f_story.html|archivedate=10 March 2014-03-10|dead-url=no}}</ref> Dari 227 penumpang, 20 orang di antaranya merupakan karyawan [[Freescale Semiconductor]], perusahaan yang berpusat di [[Austin, Texas]] – 12 dari Malaysia dan 8 dari Tiongkok.<ref>{{cite news|title=No sign of Malaysia Airline wreckage; questions over stolen passports|url=http://edition.cnn.com/2014/03/08/world/asia/malaysia-airlines-plane-missing/|publisher=CNN|accessdate=10 March 2014|date=8 March 2014}}</ref><ref>{{cite news|title=Loss of employees on Malaysia flight a blow, U.S. chipmaker says|url=http://www.reuters.com/article/2014/03/09/us-malaysia-airlines-freescale-idUSBREA280T020140309|agency=Reuters|accessdate= 15 March 2014|date=9 March 2014|archive-date=2014-03-15|archive-url=https://web.archive.org/web/20140315100625/http://www.reuters.com/article/2014/03/09/us-malaysia-airlines-freescale-idUSBREA280T020140309|dead-url=yes}}</ref>

Sesuai perjanjian dengan Malaysia Airlines tahun 2007, [[Tzu Chi]], organisasi Buddha luar negeri yang diizinkan oleh pemerintah RRT, langsung mengirim tim khusus ke Beijing dan Malaysia untuk memberi dukungan emosional kepada keluarga penumpang.<ref>[http://www.nst.com.my/latest/font-color-red-missing-mh370-font-caregiver-sacrifices-time-for-family-of-passengers-1.521261 Caregiver sacrifices time for family of passengers] ''New Straits Times''</ref><ref>{{cite web|url=http://www.npr.org/blogs/parallels/2014/03/20/291973274/for-flight-370-families-every-day-is-torment |title=For Flight 370 Families, Every Day Is 'Torment' : Parallels |publisher=NPR |date=20 March 2014}}</ref> Pihak maskapai juga mengirimkan tim pendukung dan relawan<ref>{{cite web|url=http://www.thestar.com.my/News/Nation/2014/03/09/Missing-MAS-flight-team-arrives-Beijing/|title=Missing MAS flight: MAS team arrives in Beijing|work=[[The Star (Malaysia)|The Star]]|date=9 March 2014|accessdate=9 March 2014}}</ref> serta setuju untuk menanggung biaya perjalanan anggota keluarga penumpang ke Kuala Lumpur dan menyediakan akomodasi, layanan kesehatan, dan konseling.<ref>{{cite web|url=http://www.themalaymailonline.com/malaysia/article/caregivers-from-malaysia-australia-assigned-to-families-of-passengers-onboa |title=Caregivers from Malaysia, Australia assigned to families of passengers onboard MH370 |work=The Malay Mail }}</ref> 115 anggota keluarga penumpang asal Tiongkok diterbangkan ke Kuala Lumpur.<ref>{{cite web|title=Missing Malaysia jet may have veered off course|url=http://www.cnbc.com/id/101485921|publisher=CNBC|accessdate=12 March 2014}}</ref> Beberapa anggota keluarga lainnya memilih untuk tetap di Tiongkok, khawatir akan merasa terkurung di Malaysia.<ref>{{cite news|title=MISSING MH370: Families cling to faint hopes: psychologist|url=http://www.nst.com.my/latest/font-color-red-missing-mh370-font-families-cling-to-faint-hopes-psychologist-1.506061|accessdate=12 March 2014|newspaper=New Straits Times|date=10 March 2014}}</ref> Pihak maskapai penerbangan menawarkan ganti rugi belasungkawa ''[[ex gratia]]'' sebesar US$5.000 kepada keluarga setiap penumpang,<ref>{{cite news|last=Rose|first=Adam|title=Malaysia Airlines says no reason to think crew caused jet's disappearance|url=http://www.chicagotribune.com/news/sns-rt-us-malaysia-airlines-20140310,0,5656894.story|accessdate=12 March 2014|newspaper=Chicago Tribune|date=12 March 2014|archiveurl=https://web.archive.isorg/Bqak6web/20140312212255/http://www.chicagotribune.com/news/sns-rt-us-malaysia-airlines-20140310,0,5656894.story|archivedate=12 March 2014-03-12|dead-url=yes}}</ref> tetapi pihak keluarga menganggap pembayaran tersebut tidak bisa diterima dan meminta pihak maskapai untuk mempertimbangkan ulang.<ref>{{cite web|url=http://www.themalaymailonline.com/malaysia/article/mas-cash-aid-snubbed-by-kin-of-chinese-aboard-mh370|title=MAS cash aid snubbed by kin of Chinese aboard MH370|work=The Malay Mail|date=11 March 2014|accessdate=12 March 2014}}</ref>

Seluruh awak kabin adalah warga negara Malaysia. [[Pilot penerbang|Kapten]] penerbangan di pesawat ini adalah Zaharie Ahmad Shah berusia 53 tahun asal [[Penang]]. Ia bergabung dengan MAS pada tahun 1981 dan memiliki pengalaman terbang selama 18.365 jam.<ref>{{cite web|url=http://www.straitstimes.com/the-big-story/missing-mas-plane/story/missing-mas-flight-captain-piloting-mh370-penang-boy-20140308|title=Missing MAS flight: Captain piloting MH370 a Penang boy|date=8 March 2014|work=[[The Straits Times]]|accessdate=9 March 2014}}</ref> Zaharie juga merupakan penguji yang berhak melakukan tes simulator bagi para pilot.<ref>{{cite news|last=Koswanage|first=Niluksi|title=Pilot of missing Malaysian flight an aviation tech geek|url=http://in.reuters.com/article/2014/03/09/malaysia-crash-pilot-idINDEEA2804J20140309|accessdate=10 March 2014|agency=Reuters|date=9 March 2014|archive-date=2014-03-10|archive-url=https://web.archive.org/web/20140310110251/http://in.reuters.com/article/2014/03/09/malaysia-crash-pilot-idINDEEA2804J20140309|dead-url=yes}}</ref>

| Australia memimpin operasi pencarian dari SumateraSumatra hingga Samudra Hindia selatan

Pada tanggal 11 Maret,<ref name="disasterscharter1">{{cite web|url=http://www.disasterscharter.org/web/charter/activation_details?p_r_p_1415474252_assetId=ACT-482 |title=Disaster Charter – Missing Malaysia Airlines jet |publisher=Disasterscharter.org }}</ref> otoritas Tiongkok<ref name="autogenerated2">{{cite web|last=Franco |first=Michael |url=http://news.cnet.com/8301-17938_105-57620246-1/15-space-organizations-join-hunt-for-missing-malaysian-jet/ |title=15 space organizations join hunt for missing Malaysian jet &#124; Crave |publisher=CNET |date=12 March 2014}}</ref> mengaktifkan [[International Charter on Space and Major Disasters]], organisasi internasional beranggotakan 15 negara yang bertujuan "...menyediakan sistem terpadu pemerolehan dan penyampaian data antariksa kepada negara-negara yang terkena dampak bencana alam atau buatan manusia melalui Pengguna Berwenang."<ref name="disasterscharter2">{{cite web|url=http://www.disasterscharter.org/home |title=Disaster Charter – Homepage |publisher=Disasterscharter.org }}</ref>

United States [[Federal Bureau of Investigation]] (FBI) telah mengirim ahli teknis dan agen untuk menyelidiki hilangnya pesawat.<ref name=SerranoFBI>Serrano, Richard A. "[http://www.latimes.com/world/worldnow/la-fg-wn-fbi-disappearance-malaysian-airlines-jet-20140308,0,5571373.story FBI to investigate disappearance of a Malaysian Airlines jet]." ''[[Los Angeles Times]]''. 8 March 2014. Retrieved 9 March 2014.</ref> Seorang pejabat penegak hukum senior AS mengklarifikasi bahwa agen FBI belum dikirimkan ke Malaysia.<ref>{{cite news|url=http://www.reuters.com/article/2014/03/09/malaysia-airlines-usa-assistance-idUSL2N0M60LO20140309|title=FBI not in on Malaysia crash probe; other U.S. agencies to arrive Monday|agency=Reuters|accessdate=11 March 2014|archive-date=2014-03-13|archive-url=https://web.archive.org/web/20140313135112/http://www.reuters.com/article/2014/03/09/malaysia-airlines-usa-assistance-idUSL2N0M60LO20140309|dead-url=yes}}</ref> Pada 17 Maret, investigasi ini juga dibantu oleh Interpol dan otoritas penegak hukum internasional lainnya.<ref>{{cite web |url=http://www.freemalaysiatoday.com/category/nation/2014/03/17/new-phase-of-search-starts-on-both-corridors/ |title=New phase of search starts on both corridors |publisher=Free Malaysia Today |access-date=2014-03-25 |archive-date=2014-03-21 |archive-url=https://web.archive.org/web/20140321193844/http://www.freemalaysiatoday.com/category/nation/2014/03/17/new-phase-of-search-starts-on-both-corridors/ |dead-url=yes }}</ref><ref>{{cite web|author=Matthew Weaver in London and Tom McCarthy |url=http://www.theguardian.com/world/blog/2014/mar/17/mh370-crew-of-missing-plane-investigated-for-more-than-a-week-live-updates |title=MH370: Australia takes lead in Indian Ocean as search area expands – live |work=The Guardian }}</ref> Pejabat Amerika Serikat dan Malaysia meninjau setiap penumpang di manifest, termasuk dua penumpang yang dikonfirmasi sebagai pemegang paspor curian.<ref>{{cite web|url=http://www.washingtonpost.com/world/four-flew-with-false-id-aboard-malaysia-airlines-plane-that-vanished-over-south-china-sea/2014/03/09/4b0d8a8c-a763-11e3-b61e-8051b8b52d06_story.html|title=Four flew with false ID aboard Malaysia Airlines plane that vanished over South China Sea|work=The Washington Post|date=9 March 2014|accessdate=9 March 2014|author=Simon Denyer, Robert Barnes and Chico Harlan}}</ref> Pada 18 Maret, pemerintah Tiongkok mengumumkan bahwa mereka sudah memeriksa semua warga negara Tiongkok di dalam pesawat dan meniadakan kemungkinan adanya pembajak.<ref>{{cite news|last=Chris Buckley and Keith Bradsher|title=China Rules Out Terror Ties Among Citizens on Jet|url=http://www.nytimes.com/2014/03/19/world/asia/beijing-says-no-chinese-passengers-were-involved-in-jets-disappearance.html?_r=0|work=The New York Times|accessdate=19 March 2014}}</ref>

Dua pria yang teridentifikasi di manifest, seorang warga negara Austria dan seorang warga negara Italia, masing-masing melaporkan bahwa paspornya dicuri pada tahun 2012 dan 2013.<ref name="20140312avweek"/><ref name="cnn14">{{cite news|url=http://edition.cnn.com/2014/03/08/world/asia/malaysia-airlines-plane-passengers/index.html|title=Plane bore painters, pilgrims, others from around the world|date=9 March 2014|publisher=CNN|author=Catherine E. Shoichet and Ray Sanchez|accessdate=8 March 2014}}</ref> [[Interpol]] menyatakan bahwa kedua paspor terdaftar di basis data paspor hilang dan curian, dan tidak ada pemeriksaan yang dilakukan terhadap basis datanya.<ref name=Interpol>{{cite web |url=http://www.interpol.int/News-and-media/News/2014/N2014-038 |title=INTERPOL confirms at least two stolen passports used by passengers on missing Malaysian Airlines flight 370 were registered in its databases |publisher=Interpol |accessdate=9 March 2010 |archive-date=2014-03-09 |archive-url=https://web.archive.org/web/20140309152634/http://www.interpol.int/News-and-media/News/2014/N2014-038 |dead-url=yes }}</ref><ref name="smh">{{cite news|last=Murdoch|first=Lindsay|title=Fake passports on Malaysia Airlines flight reveal flaw in airline safety|url=http://www.smh.com.au/world/fake-passports-on-malaysia-airlines-flight-reveal-flaw-in-airline-safety-20140310-hvgv0.html|accessdate=10 March 2014|newspaper=The Sydney Morning Herald|date=10 March 2014}}</ref> Menteri Dalam Negeri Malaysia, [[Ahmad Zahid Hamidi]], mengkritik pejabat imigrasi negaranya karena gagal menghentikan penumpang yang bepergian dengan paspor Eropa curian.<ref name="smh" />

''[[China Daily]]'' melaporkan bahwa ada juga seorang penumpang di manifest Malaysia Airlines yang tidak cocok dengan nama pemegang dan nomor paspornya.<ref>{{cite web |url=http://fuzhou.chinadaily.com.cn/e/2014-03/09/content_17336720.htm |title=Malaysia Airlines boarding record on Chinese passenger questioned |work=China Daily |date=9 March 2014 |access-date=2014-03-25 |archive-date=2014-03-28 |archive-url=https://web.archive.org/web/20140328221905/http://fuzhou.chinadaily.com.cn/e/2014-03/09/content_17336720.htm |dead-url=yes }}</ref>

Menyadari bahwa pesawat ini mungkin dibajak oleh seseorang yang terampil, dugaan juga sempat diarahkan kepada seorang penumpang yang bekerja sebagai teknisi penerbangan untuk sebuah perusahaan penyewaan jet Swiss.<ref>{{cite web |url=http://www.straitstimes.com/breaking-news/se-asia/story/malaysia-police-probe-flight-engineer-missing-mh370-20140317 |title=Malaysia police probe flight engineer on missing MH370 |work=The Straits Times |date=17 March 2014 |access-date=2014-03-25 |archive-date=2014-03-24 |archive-url=https://web.archive.org/web/20140324063320/http://www.straitstimes.com/breaking-news/se-asia/story/malaysia-police-probe-flight-engineer-missing-mh370-20140317 |dead-url=yes }}</ref>

Tanggal 17 Maret, kepala eksekutif Malaysia Airlines, Ahmad Jauhari Yahya, tanpa mengungkap manifest penerbangan mengatakan bahwa pesawat ini mengangkut 3 sampai 4 ton [[manggis]] dan tidak ada muatan yang berbahaya.<ref name=20140319mchron>{{cite web|url=http://www.malaysia-chronicle.com/index.php?option=com_k2&view=item&id=246351:new-theory-was-a-small-bomb-hidden-inside-one-of-the-crates-of-fruit-stacked-in-mh370s-cargo-hold?&Itemid=2 |title=Was a small BOMB hidden inside MH370's cargo hold? AND WHY HASN'T M'SIA REVEALED THE CARGO MANIFEST? |publisher=Malaysia-chronicle.com |date=19 March 2014}}</ref><ref name=20140322minsider>{{cite web|url=http://www.themalaysianinsider.com/malaysia/article/not-just-mangosteens-on-board-mh370-also-carried-lithium-ion-batteries-says|title=Not just mangosteens on board, MH370 also carried lithium-ion batteries, says daily|newspaper=[[The Malaysian Insider]]|date=22 March 2014|access-date=2014-03-25|archive-date=2015-09-05|archive-url=https://web.archive.org/web/20150905194013/http://www.themalaysianinsider.com/malaysia/article/not-just-mangosteens-on-board-mh370-also-carried-lithium-ion-batteries-says|dead-url=yes}}</ref><ref>{{cite news|url=http://news.asiaone.com/news/malaysia/missing-mh370-plane-was-carrying-3-tonnes-mangosteens|title=Malaysia News &#124; AsiaOne|publisher=News.asiaone.com|date=18 March 2014|access-date=2014-03-25|archive-date=2014-03-23|archive-url=https://web.archive.org/web/20140323203054/http://news.asiaone.com/news/malaysia/missing-mh370-plane-was-carrying-3-tonnes-mangosteens|dead-url=yes}}</ref> Tiga hari kemudian, ia juga membenarkan bahwa baterai mudah terbakar yang diidentifikasi sebagai [[baterai lithium-ion|lithium-ion]] juga berada di dalam pesawat.<ref name=DM2014>{{cite news|last=Tomlinson|first=Simon|title=Missing jet WAS carrying highly flammable lithium batteries: CEO of Malaysian Airlines finally admits to dangerous cargo four days after DENYING it|url=http://www.dailymail.co.uk/news/article-2586308/Missing-jet-WAS-carrying-highly-flammable-lithium-batteries-CEO-Malaysian-Airlines-finally-admits-dangerous-cargo.html|accessdate=23 March 2014|newspaper=[[Daily Mail]]|date=22 March 2014}}</ref> Ia menambahkan bahwa semua kargo "dikemas sesuai peraturan ICAO", diperiksa beberapa kali, dan sudah mematuhi peraturan.<ref>{{cite news|url=http://www.straitstimes.com/breaking-news/se-asia/story/missing-mh370-carried-lithium-ion-batteries-cargo-not-seen-dangerous-201|title=Missing MH370 carried lithium ion batteries as cargo but not seen as 'dangerous'|newspaper=[[The Straits Times]]|date=21 March 2014|access-date=2014-03-25|archive-date=2014-03-21|archive-url=https://web.archive.org/web/20140321140015/http://www.straitstimes.com/breaking-news/se-asia/story/missing-mh370-carried-lithium-ion-batteries-cargo-not-seen-dangerous-201|dead-url=yes}}</ref><ref>{{cite news|url=http://www.thestar.com.my/News/Nation/2014/03/22/Missing-MH370-Lithium-non-dangerous/|title=Missing MH370: Lithium ion batteries deemed non-dangerous goods|newspaper=[[The Star Online]]|date=22 March 2014}}</ref><ref name="NBC2014">[http://www.nbcnews.com/storyline/missing-jet/missing-jet-was-carrying-potentially-flammable-batteries-ceo-n58541 Missing Jet was Carrying Potentially Flammable Batteries: CEO] NBC News 21 March 2014. Retrieved 21 March 2014.</ref>

* Kepala eksekutif Malaysia Airlines, Ahmad Jauhari Yahya, awalnya mengatakan bahwa pengawas lalu lintas udara (ATC) terlibat kontak dengan pesawat dua jam setelah lepas landas, padahal pesawat hilang kontak dengan ATC kurang dari satu jam setelah lepas landas.<ref>{{cite web|url=http://www.theguardian.com/world/2014/mar/14/flight-mh370-false-leads-confusion-hunt-missing-plane |title=Flight MH370: a week of false leads and confusion in hunt for missing plane |author=Hodal,Kate |work=The Guardian |date=14 March 2014|publisher= Guardian News and Media Limited |accessdate=25 March 2014}}}}</ref>

* Otoritas Malaysia mengunjungi rumah pilot Zaharie dan kopilot Fariq pada tanggal 15 Maret. Mereka menyita sebuah simulator penerbangan milik Zaharie. Kepala kepolisian Malaysia, Khalid Abu Bakar, mengatakan bahwa ini adalah kunjungan pertama polisi ke rumah tersebut. Tanggal 17 Maret, pemerintah membantahnya dengan mengatakan bahwa polisi pertama kali mengunjungi rumah pilot dan kopilot sehari setelah pesawat dinyatakan hilang,<ref>[http://www.3news.co.nz/MH370-Further-confusion-over-timing-of-last-words/tabid/417/articleID/336342/Default.aspx "MH370: Further confusion over timing of last words"] {{Webarchive|url=https://web.archive.org/web/20140409021143/http://www.3news.co.nz/MH370-Further-confusion-over-timing-of-last-words/tabid/417/articleID/336342/Default.aspx |date=2014-04-09 }} TV3 (New Zealand). 18 March 2014</ref> meski ini sudah dibantah sebelumnya.<ref>{{cite web|last=Jamieson |first=Alastair |url=http://www.nbcnews.com/storyline/missing-jet/officials-deny-engine-data-report-missing-mh370-n51576 |title=Officials Deny Engine Data Report From Missing MH370 |publisher=NBC News |date=13 March 2014}}</ref>

Vietnam menunda sementara operasi pencariannya setelah Wakil Menteri Transportasi Vietnam mengaku pejabat Malaysia sedikit sekali berkomunikasi meski mereka meminta informasi lebih lanjut.<ref>{{cite web|last=Harlan|first=Chico|date=11 March 2014|url=http://www.washingtonpost.com/world/search-expands-for-missing-malaysia-airlines-flight/2014/03/11/fea6df4a-a8e8-11e3-8599-ce7295b6851c_story.html|title=Malaysia Airlines plane may have veered wildly off course during flight, military says|work=[[The Washington Post]]|accessdate=14 March 2014}}</ref> Pemerintah Tiongkok, melalui [[Xinhua News Agency]], mengatakan bahwa pemerintah Malaysia harus memimpin dan melaksanakan operasi dengan transparansi yang lebih besar.<ref name=20140314afp/> Pernyataan ini ditegaskan kembali oleh [[Menteri Luar Negeri Republik Rakyat Tiongkok|Menteri Luar Negeri Tiongkok]] beberapa hari kemudianː "Bantulah semua pihak dalam [operasi] pencarian supaya lebih efektif dan akurat."<ref>{{cite news|date=14 March 2014|url=http://bigstory.ap.org/article/china-appeals-malaysia-search-information|title=China appeals to Malaysia for search information|work=Associated Press|accessdate=14 March 2014|archive-date=2014-03-14|archive-url=https://web.archive.org/web/20140314225646/http://bigstory.ap.org/article/china-appeals-malaysia-search-information|dead-url=yes}}</ref> Pertanyaan dan kritik dilontarkan oleh berbagai pakar angkatan udara dan oposisi Malaysia tentang kondisi angkatan udara dan kemampuan radar Malaysia saat ini.<ref>{{cite web |author=Malaysia Insider |url=http://www.themalaysianinsider.com/malaysia/article/mh370-throws-spotlight-on-malaysias-air-force-and-radar-capabilities |title=MH370 throws spotlight on Malaysia's air force and radar capabilities |publisher=The Malaysian Insider |date=8 July 2011 |access-date=2014-03-25 |archive-date=2015-09-05 |archive-url=https://web.archive.org/web/20150905215528/http://www.themalaysianinsider.com/malaysia/article/mh370-throws-spotlight-on-malaysias-air-force-and-radar-capabilities |dead-url=yes }}</ref><ref>{{cite web|last=Childs |first=Nick |url=http://www.bbc.com/news/world-asia-26603830 |title=Missing Malaysia plane: MH370 and the military gaps |publisher=BBC |date=1 January 1970}}</ref><ref>{{cite web|url=http://www.malaysiakini.com/news/257320 |title=Malaysiakini |publisher=Malaysiakini}}</ref> ''[[The Washington Post]]'' menulis bahwa seandainya MAS memasang sistem [[SwiftBroadband|Swift]] yang pernah membantu pelacakan Air France 447, para penyelidik bisa memperoleh informasi kritis tentang pesawat ini sekalipun sistem ACARS dan transpondernya mati.<ref>{{cite web|last=Halsey III|first=Ashley|author2=Higham, Scott |url=http://www.washingtonpost.com/world/malaysia-airlines-didnt-buy-computer-upgrade-that-could-have-given-data-on-missing-flight/2014/03/19/40e2484c-af7c-11e3-a49e-76adc9210f19_story.html |title=Malaysia Airlines didn't buy computer upgrade that could have given data on missing flight |work=The Washington Post |date=20 March 2013}}</ref>

Kritik juga diarahkan pada penundaan upaya pencarian. Sebuah laporan di ''The Wall Street Journal'' menulis bahwa perusahaan satelit Britania Raya, [[Inmarsat]], telah menyediakan data kepada pihak berwenang sejak 11 Maret, tiga hari setelah pesawat hilang, artinya pesawat tersebut memang tidak berada di Teluk Thailand dan Laut Tiongkok Selatan yang waktu itu sedang disisir, dan mungkin mengalihkan penerbangannya melalui koridor selatan dan utara. Informasi tersebut baru diakui dan dirilis di hadapan publik oleh Perdana Menteri Malaysia Najib Razak pada konferensi pers tanggal 15 Maret.<ref>{{cite web|last=Pasztor|first=Andy|author2=Ostrower, Jon|author3=Hookway, James |url=http://online.wsj.com/news/article_email/SB10001424052702304026304579449680167673144-lMyQjAxMTA0MDEwOTExNDkyWj |title=Critical Data Was Delayed in Search for Missing Malaysia Airlines Flight MH 370 |work=The Wall Street Journal |date=19 March 2013|access-date=2014-03-25|archive-date=2014-03-23|archive-url=https://web.archive.org/web/20140323081739/http://online.wsj.com/news/article_email/SB10001424052702304026304579449680167673144-lMyQjAxMTA0MDEwOTExNDkyWj|dead-url=yes}}</ref> Menanggapi kritik seputar kerahasiaan informasi sinyal satelit, Malaysia Airlines mengatakan bahwa sinyal satelit mentah adalah hal yang penting untuk diverifikasi dan dianalisis "sehingga tingkat kepentingannya bisa dipahami dengan benar". Ketika verifikasi dan analisis dilakukan, pihak maskapai belum bisa mengonfirmasi keberadaannya di hadapan publik.<ref>{{cite web|title=19th Media Statement|url=http://www.malaysiaairlines.com/my/en/site/dark-site.html|publisher=Malaysia Airlines|accessdate=15 March 2014|archive-date=2014-03-08|archive-url=https://web.archive.org/web/20140308134226/http://www.malaysiaairlines.com/my/en/site/dark-site.html|dead-url=yes}}</ref>

* [http://www.malaysiaairlines.com/my/en/site/dark-site.html Updates regarding MH370] {{Webarchive|url=https://web.archive.org/web/20140308134226/http://www.malaysiaairlines.com/my/en/site/dark-site.html |date=2014-03-08 }} ''[[Malaysia Airlines]]''