MH370: Malaysia's Missing Flight

What Happened to MH370

Malaysia Airlines Flight 370 was a scheduled passenger flight from Kuala Lumpur to Beijing. In the early hours of 8 March 2014, the Boeing 777-200ER lost contact with air traffic control and never arrived. All 239 people on board were lost. More than a decade later, the main wreckage has never been found, and MH370 remains one of the greatest unsolved mysteries in aviation history.

The flight at a glance

What is known

The aircraft departed Kuala Lumpur and climbed to cruising altitude over the South China Sea. About 38 minutes after takeoff, the crew made a routine radio call, recorded as "Good night Malaysian Three Seven Zero." Minutes later the transponder stopped transmitting, and the aircraft dropped off civilian secondary radar.

The known facts after that point are limited but consistent:

• Radar tracking. Malaysian military primary radar tracked the aircraft for roughly another hour as it turned west, away from its planned route toward Beijing, and crossed the Malay Peninsula.
• Satellite handshakes. The aircraft's satellite communication system kept exchanging automated signals, or "handshakes," with an Inmarsat satellite roughly once an hour for close to seven hours. The last handshake was recorded at 08:19 local time.
• Likely end point. Analysis of that satellite data placed the aircraft in the southern Indian Ocean, where investigators believe it came down after running out of fuel.
• Confirmed debris. In July 2015, a wing part called a flaperon washed ashore on Réunion Island and was confirmed to be from MH370. Around 30 pieces of suspected debris have since been recovered along Indian Ocean coastlines, though only a small number have been positively identified.

What remains unknown

The central questions have never been answered. Investigators have not located the fuselage, the flight data recorder, or the cockpit voice recorder, so no definitive account of the final hours exists.

• Why the transponder and communications stopped.
• Why the aircraft turned west and flew for hours off course.
• Who or what controlled the aircraft during that time.
• The precise location where it entered the ocean.

Malaysia's official safety investigation, released on 30 July 2018, stated that without the main wreckage and recorders, it could not determine the cause. Underwater searches have covered vast areas of the seabed. The most recent effort, conducted by the company Ocean Infinity, concluded in early 2026 without finding the aircraft. The search for answers continues.

The Night It Vanished: Timeline

Malaysia Airlines Flight 370 was a scheduled red-eye from Kuala Lumpur International Airport to Beijing Capital International Airport. On board were 227 passengers and 12 crew, 239 people in total. The Boeing 777-200ER pushed back and climbed away into a routine night. What follows is the sequence of that flight as reconstructed from air traffic control logs, military primary radar, and automated satellite data. All times are Malaysia Time (MYT), which is UTC+8.

Timeline of 7 to 8 March 2014

What the record shows

The last words from the cockpit came at 01:19. Two minutes later the transponder went silent near IGARI, at the handover point where Malaysian and Vietnamese controllers might each assume the other was tracking the flight.

Military radar then followed a track turning back across the peninsula, with the last return at 02:22 over the Strait of Malacca. After that, no radar saw the aircraft again.

What remained was the Inmarsat satellite link. Once an hour, the ground station and the aircraft's terminal exchanged brief automated signals. These handshakes carried no position or heading, yet their timing and frequency later allowed investigators to estimate that MH370 continued flying for several more hours. The last complete handshake was logged at 08:19, about seven hours and 37 minutes after departure, and close to two hours after the flight was due in Beijing.

How a silent aircraft was tracked

MH370 left Kuala Lumpur just after midnight on 8 March 2014 with 239 people aboard, bound for Beijing. Within the first hour, the systems that normally report an aircraft's position went quiet, and the reconstruction of where the plane went depended on two indirect sources: military primary radar and a series of automated satellite contacts.

Loss of the transponder and ACARS

The final routine ACARS transmission was sent at 01:07 (Malaysia time). ACARS (the Aircraft Communications Addressing and Reporting System) relays engine and status data to the airline. The last voice call from the cockpit came at 01:19. Around 01:21, as the aircraft approached the handover into Vietnamese airspace over the South China Sea, the transponder stopped responding. To air traffic control screens, the flight had effectively vanished.

The turn-back on military radar

Civil radar depends on the transponder, so once it was off, only primary (skin-return) radar could see the aircraft. Malaysian military radar recorded a target that turned back to the west, crossed the Malay Peninsula, and continued northwest up the Strait of Malacca. The last military radar contact was at about 02:22, over the Andaman Sea. After that point there was no radar coverage.

The Inmarsat handshakes

The aircraft's satellite terminal kept exchanging brief automated signals with an Inmarsat satellite over the Indian Ocean, roughly once an hour. These "handshakes" carried no GPS position, but each one recorded two measurable values.

Because each BTO gives a distance and not a point, every handshake defines an arc rather than a location. The BFO values indicated the aircraft had turned south, which ruled out a northern path over Asia and pointed to the southern Indian Ocean.

The 7th arc

The final contact was a partial handshake at 08:19, a log-on request from the aircraft. This is consistent with the satellite equipment restarting after a power interruption, which fuel-exhaustion calculations placed close to that time. The arc defined by this last signal became known as the 7th arc, the most likely line along which the aircraft ended its flight.

Why the search went off Western Australia

Combining the 7th arc with the aircraft's fuel range, speed, and performance limits produced a probability band in the far southern Indian Ocean, several thousand kilometres southwest of Perth. The underwater search concentrated on a corridor along the 7th arc in that region. The seabed search led by Australia covered about 120,000 square kilometres before being suspended in January 2017, and a later search by Ocean Infinity in 2018 covered a further area without finding the wreckage.

The Aircraft and the Crew

The aircraft

The aircraft operating MH370 was a Boeing 777-200ER registered 9M-MRO, with manufacturer serial number 28420. Boeing delivered it new to Malaysia Airlines on 31 May 2002, and it was powered by two Rolls-Royce Trent 892 engines. By the day of the flight it had accumulated roughly 53,470 flight hours across about 7,526 cycles (takeoffs and landings).

The airframe carried a strong service record. It had never been involved in a major accident. Its one notable prior event was minor: in August 2012, while taxiing at Shanghai Pudong International Airport, its wingtip clipped the tail of another aircraft, causing a broken wingtip that was repaired. The Boeing 777 family more broadly held an excellent safety reputation at the time of the flight.

The crew

Captain Zaharie Ahmad Shah commanded the flight. Aged 53, he had flown with Malaysia Airlines since 1981 and had logged approximately 18,000 flight hours, more than 15 years of which were on the Boeing 777. He served as a training captain for the airline. In his personal time he was a flight-simulation hobbyist and had built a home simulator setup.

First Officer Fariq Abdul Hamid, aged 27, was the co-pilot. He had accumulated around 2,800 flight hours and was completing his conversion training onto the Boeing 777, with MH370 among his final training flights on the type before full certification.

The flight-simulator data

Investigators examined a home flight simulator belonging to Captain Zaharie. Data recovered from its hard drives showed a route flown weeks earlier that ran south over the Indian Ocean, a path with broad similarities to where the aircraft is believed to have ended. This drew considerable public and media attention.

The official investigation treated the finding cautiously. Investigators reviewed the background, training, finances, and mental health of both pilots and reported being satisfied on those points. They stated that the simulator data did not, on its own, establish intent or explain the disappearance, and they reached no firm conclusion from it. The final reports found no evidence conclusively implicating either pilot. Both men are remembered by families and colleagues, and the cause of the flight's loss remains officially undetermined.

The Searches (2014 to 2026)

The effort to find MH370 became the largest and most expensive search in aviation history. It has run across more than a decade, through several distinct phases, led at different times by Malaysia, Australia, and the private seabed survey company Ocean Infinity.

Surface and air search (2014)

The search and rescue operation began on 9 March 2014, the day after contact was lost. Early air and sea searches concentrated on the South China Sea and the Andaman Sea, along the aircraft's planned route. Analysis of automated satellite signals between the aircraft and an Inmarsat satellite later placed its likely end point far to the south, along a line of positions known as the 7th arc. Australia took charge of operations on 17 March 2014, and from 18 March the surface search shifted to the remote southern Indian Ocean. The aerial search for floating debris ended in late April 2014 without confirmed wreckage.

Underwater search led by the ATSB (2014 to 2017)

Australia's Transport Safety Bureau (ATSB) coordinated the underwater search on behalf of the three governments most involved: Malaysia, Australia, and the People's Republic of China. The work ran in two phases: a bathymetric survey to map the seabed, followed by a sonar search of the sea floor. The underwater zone was first set at 60,000 square kilometres, then expanded to 120,000 square kilometres in April 2015. On 17 January 2017, with more than 120,000 square kilometres searched and eliminated, the three governments suspended the search pending credible new evidence.

Ocean Infinity (2018)

In 2018, Ocean Infinity conducted a search under a "no find, no fee" arrangement, using autonomous underwater vehicles to cover ground quickly along the 7th arc. That effort ended in June 2018 without locating the aircraft.

Renewed search (2024 to 2026)

In December 2024, Malaysia agreed in principle to a further Ocean Infinity search. On 19 March 2025, the Malaysian cabinet approved terms on the same "no find, no fee" basis, with a payment of about US$70 million if substantial wreckage were recovered. Operations began, paused in April 2025 for weather, resumed on 30 December 2025 for a targeted 55-day survey, and concluded on 23 January 2026 without findings. In June 2026, Malaysia's cabinet extended the agreement to 30 June 2027 to cover a remaining zone of about 7,428 square kilometres, with vessels expected back in the calmer season.

Search phases at a glance

The Debris That Washed Ashore

For more than a year after MH370 vanished on 8 March 2014, no physical trace of the aircraft had been found. That changed on 29 July 2015, when a barnacle-covered aircraft part washed up on a beach on Reunion Island, a French territory in the western Indian Ocean.

The Reunion flaperon

The Reunion part was a flaperon, a control surface from the trailing edge of the wing. French investigators examined it in Toulouse, and on 3 September 2015 they stated that it corresponded to MH370. It was the first piece of debris confirmed to have come from the aircraft, and the first hard evidence that the plane had ended in the ocean rather than anywhere on land.

More pieces along the African coast

Over the following two years, further fragments came ashore around the western Indian Ocean: in Mozambique, South Africa, Mauritius, Tanzania, and Madagascar. Several were found by private searchers, including the American lawyer Blaine Gibson, who was guided by drift analysis from oceanographer Charitha Pattiaratchi at the University of Western Australia.

In total, roughly 30 fragments believed to be linked to MH370 have been recovered. Only a small number were positively identified as belonging to the aircraft (registration 9M-MRO). Many others were assessed as almost certainly or likely from the plane, based on materials, construction, and Boeing part markings. Some pieces could not be conclusively tied to MH370 at all.

Key debris finds

What the debris suggested

The location of the finds was consistent with ocean drift modelling. Studies of surface currents traced floating debris backward from the African coastline toward an origin in the southern Indian Ocean, west of Australia. This matched the area defined by the satellite data ("handshake" signals with Inmarsat), which had already directed the underwater search to the southern arc.

Analysis of the recovered flap and flaperon also fed into questions about how the aircraft entered the water. Examination of the flap suggested it was likely retracted at the time, a detail investigators weighed when considering whether the descent was controlled.

The Independent Hunt for Answers

When official searches paused, private money and volunteer expertise kept the investigation alive. Much of what the public knows about MH370 today came from people working outside government.

The debris hunter

Blaine Gibson, an American lawyer, funded his own travel to shorelines across the western Indian Ocean and East Africa. Combing beaches in places such as Mozambique, Madagascar, and Mauritius, he personally recovered or helped bring in around 20 pieces of suspected debris and passed them to investigators. In total, roughly 40 pieces of possible aircraft debris have been catalogued, only a few of them confirmed as definitely from the aircraft. His work put physical evidence into official hands that the sea might otherwise have kept.

The technical volunteers

The Independent Group formed in 2014 as an informal collection of engineers, physicists, and data analysts who reworked the Inmarsat satellite handshake data. Their published analyses shaped debate over where along the 7th arc the aircraft most likely ended its flight.

One member, Richard Godfrey, promoted a tracking method based on WSPR (Weak Signal Propagation Reporter), an amateur-radio network. In 2021 he argued that historic WSPR records could reveal the aircraft crossing radio paths, and he named a candidate crash area centred near 33.2 degrees south, 95.3 degrees east.

Established versus contested

The methods rest on very different footing.

• Ocean-drift modelling is well established. Australia's CSIRO, working with David Griffin and using tests on a real Boeing 777 flaperon, refined the most likely impact point to around 35.6 degrees south, 92.8 degrees east. Oceanographers at the University of Western Australia contributed complementary drift analysis. These findings match where debris did and did not wash ashore.
• WSPR tracking remains contested. Fellow Independent Group member Victor Iannello and other radio engineers argue the signals scattered by an aircraft are far too weak to detect, and the technique lacks peer-reviewed validation.

The private seabed search

Ocean Infinity, a private robotics and seabed-survey firm, ran both campaigns under a "no find, no fee" arrangement, the later one backed by a Malaysian government reward of 70 million US dollars. The seabed remains under study, and the search is authorised to continue.

The Leading Theories

More than a decade after Malaysia Airlines Flight 370 vanished on 8 March 2014 with 239 people on board (227 passengers and 12 crew), no single explanation has been confirmed. The official Malaysian safety investigation report, released on 30 July 2018, stated that the team was unable to determine the real cause of the disappearance. The main wreckage, the flight data recorder, and the cockpit voice recorder have never been found, so every theory below rests on partial evidence: radar tracks, satellite handshake data, and a small number of recovered debris pieces.

What investigators do agree on is that the aircraft's transponder stopped transmitting at around 01:21 MYT, roughly two minutes after the last routine radio call. The plane then turned back, crossed the Malay Peninsula, and was tracked on military radar until about 02:22, some 200 nautical miles northwest of Penang. The 2018 report concluded the turn was consistent with manual control rather than a system fault. Beyond that point, the interpretations diverge.

The main theories under discussion:

On the question of blame, the investigation did not find the captain or first officer at fault. Checks on both pilots showed nothing unusual in their background, health, or behavior. Chief investigator Kok Soo Chon stated that the team could not exclude the possibility of unlawful interference by a third party, while noting there was no direct evidence for it.

The honest position, and the one the official report takes, is that the cause remains undetermined. Each theory explains some evidence and leaves other parts unexplained. Until the main wreckage or its recorders are recovered, no theory can be confirmed or fully ruled out.

The Official Investigation

Under Annex 13 to the Convention on International Civil Aviation, Malaysia held investigative responsibility for MH370 as the State of Registry and Operator. The work was carried out by the Malaysian ICAO Annex 13 Safety Investigation Team for MH370 (MIASIT), whose purpose was to establish the facts and improve aviation safety rather than to assign blame or liability.

International cooperation

Because the aircraft, its passengers, and the search area spanned many nations, accredited representatives from several States took part. These included:

• Australia (Australian Transport Safety Bureau, ATSB), which also led the underwater search of the southern Indian Ocean
• United States (National Transportation Safety Board, NTSB), supported by Boeing
• United Kingdom (Air Accidents Investigation Branch, AAIB), supported by Inmarsat and Rolls-Royce
• France (Bureau d'Enquetes et d'Analyses, BEA)
• China (CAAC), Singapore (TSIB), and Indonesia (NTSC)

Malaysia issued a preliminary report in 2014 and a detailed Factual Information report on the first anniversary in March 2015. The team submitted its final report to the Ministry of Transport on 2 July 2018, and it was released publicly on 30 July 2018. The document ran to roughly 1,500 pages across the main report and appendices.

Key findings

The report reached a central conclusion that the team stated plainly: it could not determine the real cause of the disappearance. The head of the team noted that a conclusive answer would depend on locating the main wreckage, the flight data recorder, and the cockpit voice recorder, none of which had been found.

On the transponder, investigators observed that the signal from MH370 ceased while signals from other aircraft on the radar display continued, and they could not establish why. The report found no evidence of a technical failure that would explain the diversion, and given the significant lack of physical evidence it declined to name a probable cause.

Criticism of the early response

The report documented shortcomings in the hours after contact was lost. Air traffic controllers were slow to recognise that the aircraft was missing, and the Kuala Lumpur Aeronautical Rescue Coordination Centre was activated at about 05:30 local time, roughly four hours after the loss of contact. Military radar had tracked an unidentified return crossing the Malay Peninsula, but that information was not acted upon or shared with civilian authorities in a timely way. These procedural gaps and communication failures were among the report's most direct observations.

How MH370 Changed Aviation

When MH370 left secondary radar coverage over the South China Sea on 8 March 2014, controllers had no way to see where it went in real time. Long-haul aircraft over open ocean were tracked mainly by periodic position reports and radar near coastlines. Once the transponder stopped responding and the aircraft flew beyond radar, minutes passed with no fixed record of its track. That gap is what allowed a modern airliner to disappear, and it shaped the rules that followed.

The main changes

Investigators and regulators focused on two problems: knowing where an aircraft is at all times, and being able to find the recorders if it goes down in deep or remote water.

• ICAO GADSS. The International Civil Aviation Organization developed the Global Aeronautical Distress and Safety System, a framework of standards for tracking aircraft through normal flight and distress.
• Normal position reporting every 15 minutes. Operators must be able to establish the position of an aircraft at intervals of 15 minutes or less during oceanic and remote flight. This standard became applicable in November 2018.
• Autonomous distress tracking every 1 minute. When an aircraft is in distress, systems must report its position at least once per minute so a crash site can be located to within a small radius. This standard entered into force on 1 January 2023 and applies to newly built aircraft above 27,000 kg maximum take-off weight.
• Longer-life underwater locator beacons. Flight recorder beacons must transmit for at least 90 days, up from 30 days, giving search teams far more time to detect them underwater.
• Low-frequency airframe beacon. Large aircraft over water must carry an additional locating device that transmits at a low frequency (around 8.8 kHz), which travels farther through water than the standard pinger and helps locate wreckage over a wide area.
• Cockpit voice recorder duration extended to 25 hours. Under EASA rules, aircraft above 27,000 kg manufactured from 1 January 2021 must record 25 hours of cockpit audio, up from 2 hours, so a full long-haul flight is preserved.

Before and after

These measures aim to ensure that a repeat of MH370 would leave a continuous position trail and recorders that stay findable for months. The search for MH370 itself covered years and vast areas of the southern Indian Ocean, and the reforms are meant to shorten that kind of effort for any future loss.

Who Was on Board

Malaysia Airlines Flight 370 carried 239 people: 227 passengers and 12 crew. The passengers came from about 14 countries, with the largest group from China and the second largest from Malaysia. All 12 crew members were Malaysian, led by Captain Zaharie Ahmad Shah and First Officer Fariq Abdul Hamid.

Among those aboard were families returning home, a group of Chinese calligraphers, workers from a semiconductor firm, honeymooners, and a Malaysian stunt performer. Two passengers were later identified as Iranian nationals who had boarded using stolen Austrian and Italian passports; investigators concluded they were migrants, with no link to the disappearance.

Nationalities Represented

Figures are drawn from the airline's manifest as later corrected. The two Iranian nationals are counted under Iran rather than the passports they carried.

The Families' Search for Answers

In the years since 8 March 2014, next of kin have pressed governments and the airline for a full accounting. Many organised through Voice370, a family support group formed after the disappearance. Voice370 has:

• Called repeatedly for the search to continue and for the release of investigation records.
• Criticised a 2016 Malaysian law that families said shielded the restructured airline from certain claims.
• Independently gathered and delivered pieces of possible debris found along the Indian Ocean coastline to Malaysian authorities.

Each year, relatives hold a Day of Remembrance. At the tenth anniversary gathering in Kuala Lumpur in March 2024, next of kin lit 239 candles, one for each person aboard, and assembled 239 jigsaw pieces carrying the names of the missing.

Legal and Compensation Aftermath

Because the flight was international, claims fell under the Montreal Convention (1999), which set a two-year window to file, closing on 8 March 2016. Families rushed to lodge lawsuits in Malaysia, China, the United States, and elsewhere before the deadline.

Key points of the aftermath:

• Interim payments. Malaysia Airlines and its insurers offered an early advance (reported at around US$50,000 per passenger) ahead of final settlements.
• Convention baseline. The Convention provided for compensation of roughly US$175,000 per passenger, with families able to seek more where negligence could be shown.
• Settlements over time. By 2019, Malaysian authorities reported that most next of kin across the MH370 and MH17 tragedies had been compensated, while a portion remained in negotiation.

For many families, the financial process ran alongside a longer wait: the aircraft has never been found, and confirmed answers about what happened to their relatives remain absent.

Where Things Stand Now

More than a decade after Flight 370 disappeared on 8 March 2014, the aircraft and most of the 239 people aboard have still not been found. The search has continued, paused, and resumed, but the central questions remain open.

The renewed Ocean Infinity search

On 25 February 2025, Malaysian Transport Minister Anthony Loke announced a new underwater search by the marine robotics company Ocean Infinity, working under a "no find, no fee" agreement. Malaysia pledged a reward of US$70 million if the wreckage was located. The plan covered roughly 15,000 km² of the southern Indian Ocean over about 18 months.

The 2025 effort followed the seasonal weather of the region, where conditions turn rough around May and improve toward the end of the year.

On 8 March 2026, Ocean Infinity confirmed that the renewed operation had ended without locating the aircraft. Reporting on the effort described a search area of over 140,000 km² examined across the campaign, still without confirmed wreckage.

Drift and WSPR analyses

Independent researchers have continued to refine where the aircraft may rest.

• Drift modelling. Confirmed debris, beginning with a flaperon found on Reunion Island in July 2015, has been used by CSIRO, the University of Western Australia, and NOAA to model ocean pathways back toward a likely impact zone in the southern Indian Ocean near the 7th arc.
• WSPR analysis. Independent investigator Richard Godfrey has proposed reconstructing the flight path using Weak Signal Propagation Reporter (WSPR) radio data. The Australian Transport Safety Bureau has acknowledged Godfrey as a credible investigator but stated it cannot assess the validity of the WSPR method. A number of radio engineers and analysts question whether a system built for amateur radio propagation can track a moving aircraft.

Why the mystery endures

No confirmed wreckage field has been located on the seabed. The recovered debris confirms the aircraft came down in the Indian Ocean, yet the exact resting place spans a vast, deep, and rugged search zone. Competing analyses point to overlapping but not identical locations, and without the main wreckage and flight recorders, the sequence of events cannot be established with certainty.

What closure would mean

For the families of the 239 people aboard, locating the aircraft would offer answers long deferred: recovery of remains where possible, physical evidence for investigators, and a factual account of the final hours. Until then, the priority remains a careful, evidence-led search, carried out with respect for those still waiting.