# Malaysia Airlines Flight 370 was diverted, landed or shot down, and its true fate is being covered up

**No verdict.** The disappearance is real and still unexplained, and that vacuum is where the theories live. But the documented best evidence, the Inmarsat satellite handshakes and the debris recovered along the western Indian Ocean, points to an uncontrolled crash in the remote southern Indian Ocean. The specific conspiracy claims, that the plane was landed intact at Diego Garcia or that governments know exactly what happened and are hiding it, are unproven, and the intact-landing versions are positively contradicted by the physical evidence.

Category: Unsolved Crimes & Disappearances · Era: 2010s · First circulated: March 2014 · Believed by: Belief that the full truth is being withheld is widespread, especially among victims' families, and Diego Garcia and hijack scenarios have circulated globally since the first week. The finding rated here is not the fact of the disappearance, which is undisputed, but the cover-up and intact-diversion claims, which remain unsupported.
URL: https://theconspiratory.com/theory/mh370

## Summary
On 8 March 2014, Malaysia Airlines Flight 370, a Boeing 777-200ER carrying 239 people from Kuala Lumpur to Beijing, dropped off air traffic control screens and was never seen again. It is the most confounding aviation mystery of the modern era: a wide-body jet that vanished in an age of constant surveillance. Into that silence poured theories that the aircraft was hijacked and flown to the US base at Diego Garcia, shot down and hushed up, or spirited away by governments that know the truth. This case file separates what is genuinely documented (the plane really did go dark, the turn-back was almost certainly deliberate, the northern flight path is ruled out by satellite data, and debris consistent with a southern-ocean crash washed up on Indian Ocean shores) from the specific conspiracy claims, which are unproven and, where they require an intact landing, contradicted by the physical record.

## The claim
That MH370 did not simply crash and sink by accident, but was deliberately diverted and either landed intact at a secret location such as the US military base on Diego Garcia, hijacked for some undisclosed purpose, or shot down, and that one or more governments know what actually happened to the aircraft and its 239 occupants and are concealing it.

## Origin and timeline
- 2014-03-08: MH370 departs Kuala Lumpur at 00:42 local time for Beijing. At 01:19 the cockpit signs off to Malaysian controllers with 'Good night, Malaysian three seven zero'; about two minutes later, near waypoint IGARI over the South China Sea at the handoff to Vietnamese airspace, the transponder stops and the aircraft vanishes from secondary radar.
- 2014-03-08: Malaysian military primary radar tracks an unidentified aircraft turning back westward, crossing the Malay Peninsula and continuing up the Strait of Malacca before radar contact is lost at about 02:22 over the Andaman Sea.
- 2014-03-08: A satellite over the Indian Ocean continues to record automated hourly 'handshakes' with the aircraft's satellite terminal until 08:19, hours after all other contact was lost, placing the plane somewhere along a vast arc when it likely ran out of fuel.
- 2014-03-24: Analysing the handshake timing and frequency data, the UK satellite operator Inmarsat and investigators conclude the aircraft flew south into the remote southern Indian Ocean. Malaysia announces the flight 'ended' there with no survivors, though no wreckage has yet been found.
- 2015-07-29: A wing flaperon washes ashore on Réunion Island in the western Indian Ocean, the first piece of physical debris. French investigators, matching internal serial numbers through the part's manufacturer, later confirm it came from 9M-MRO, the missing aircraft.
- 2015–2016: More than twenty pieces of debris later wash up in Mozambique, South Africa, Mauritius, Madagascar and Tanzania, several confirmed or assessed as almost certainly from MH370, all consistent with drift from a southern Indian Ocean crash site.
- 2017-01-17: After scouring roughly 120,000 square kilometres of seabed without success, Malaysia, Australia and China suspend the underwater search.
- 2018-07-30: The Malaysian ICAO Annex 13 Safety Investigation Report is released. It cannot determine the cause, rules out common mechanical or fire scenarios as sole explanations, judges the turn-back likely to have been made manually, and declines to rule out unlawful interference by a third party, while identifying no culprit.
- 2025-03: Malaysia agrees terms with the seabed-survey firm Ocean Infinity to resume the search on a 'no find, no fee' basis, with a 70 million US dollar payment only if the wreckage is located.

## The evidence, claim by claim
- Claim: The plane could have flown north and been landed intact somewhere hidden, like the US base at Diego Garcia, rather than crashing.
  Evidence: This is the claim the physical evidence most directly contradicts. The automated satellite handshakes recorded until 08:19 carry two measurements: a timing offset that fixes the aircraft's distance from the satellite (the 'arcs'), and a frequency offset whose Doppler signature distinguishes a northbound from a southbound track. That frequency analysis pointed south, away from Diego Garcia and central Asia, and the northern corridor was ruled out. Debris then washed up thousands of kilometres away on the western Indian Ocean rim, exactly where drift models say wreckage from a southern crash would go, not near a base in the central Indian Ocean. The Diego Garcia diversion was explicitly rejected by US officials, and an intact landing is hard to square with a flaperon and other pieces that separated from the airframe and floated. A plane that lands safely does not shed debris across an ocean.
- Claim: The transponder and communications going dark, and the deliberate turn-back, prove a sophisticated act that authorities are covering up.
  Evidence: Part of this is documented, and it is genuinely strange. The transponder and the ACARS reporting did stop, and the 2018 safety report judged the turn-back was probably flown by hand rather than caused by a failure, and could not exclude unlawful interference by a third party. But 'a deliberate act happened aboard the aircraft' is a different claim from 'a government knows the whole truth and is hiding it.' Investigators were unusually candid that they could not establish who altered the flight path or why, and named no perpetrator. A deliberate diversion by someone on the plane and an official cover-up are not the same thing, and only the first has support.
- Claim: Years of searching turned up nothing, which shows the authorities are not really looking or are concealing the crash site.
  Evidence: The search is one of the most extensive and openly documented in history, which is the opposite of concealment. Australia's transport safety bureau led an underwater hunt across about 120,000 square kilometres of some of the deepest, least-charted seabed on Earth, published its methods and its final report, and commissioned independent drift and oceanographic modelling. Ocean Infinity then searched further in 2018 and again from 2025. Not finding a wreck in that terrain reflects the imprecision of a single satellite arc drawn across an abyssal ocean, not a hidden site. Absence of a located wreck is a measure of how hard the ocean is, not evidence of a plot.
- Claim: The recovered debris was planted or is inconsistent, so it cannot be trusted as proof of a crash.
  Evidence: The debris is among the strongest physical anchors in the whole case. The Réunion flaperon was tied to the specific missing airframe, 9M-MRO, by internal part and serial numbers traced through the component's manufacturer, not by appearance alone. Subsequent pieces recovered around the Indian Ocean rim were consistent in type, marine growth and drift timing with an origin in the southern search zone in March 2014. To be planted, the material would have had to be genuine parts of that exact aircraft, distributed across multiple countries over more than a year in patterns matching independent ocean-drift models, a far more elaborate proposition than a crash.

## Why people believe it
- The core fact is astonishing and true: a modern wide-body airliner with 239 people aboard vanished, and more than a decade later the wreck has not been positively located. When something that seems impossible actually happens, an ordinary accident can feel like an inadequate explanation.
- There are real, unresolved anomalies. The communications went dark at the precise handover between two countries' airspace, the aircraft turned back and flew for hours off its route, and no distress call was ever made. These are documented oddities, not inventions, and they leave room for darker readings.
- Malaysia's early handling was chaotic and at times contradictory, with shifting timelines and slow disclosure. Once an authority looks like it is concealing incompetence, the public readily assumes it is concealing something worse.
- Diego Garcia is a genuinely secretive, closed US military base in the Indian Ocean, which makes it an irresistible destination for a 'landed intact' story, even though the satellite and debris evidence points the other way.
- A hijack, a shoot-down or a secret landing all supply something the true story withholds: an agent, a motive and a resolution. A blind crash into deep ocean with no located wreck offers grief without answers, and a plot at least offers a shape.

## Open questions
- Who changed the aircraft's course, and why? The 2018 report concluded the turn-back was probably manual and would not rule out third-party interference, but it identified no person and reached no motive. Leading hypotheses, including deliberate action by someone in the cockpit and a hijack or onboard emergency, remain unproven, and this file does not assert any of them as fact.
- Where, precisely, did the aircraft come down? The seventh handshake defines an arc, not a point, and even after drift modelling narrowed the priority zone, the searched seabed has not yielded a confirmed wreck, so the exact impact location is still unknown.
- Why was there no distress call and no further use of the aircraft's communication systems after the turn-back? Whether the silence reflects a deliberate act, incapacitation of those aboard, or a cascading failure has never been settled.
- The captain's personal flight simulator was found to contain a route into the far southern Indian Ocean, which some read as chilling and others as one of thousands of practice routes with no established link to the flight. Its significance is genuinely disputed and has not been resolved.

## Sources
- Safety Investigation Report, Malaysia Airlines Boeing B777-200ER (9M-MRO), MH370/01/2018, Malaysian ICAO Annex 13 Safety Investigation Team, Ministry of Transport Malaysia (2018): https://www.mot.gov.my/en/MH370%20Investigation%20Report/01-Report/MH370SafetyInvestigationReport.pdf
- The Search for MH370, Ashton, Shuster Bruce, Colledge & Dickinson (Inmarsat), The Journal of Navigation (2015): https://www.cambridge.org/core/journals/journal-of-navigation/article/search-for-mh370/D2D1C4C99E7BFDE35841CFD70081114A
- Bayesian Methods in the Search for MH370 (open access), Davey, Gordon, Holland, Rutten & Williams, Defence Science and Technology Group / Springer (2016): https://link.springer.com/book/10.1007/978-981-10-0379-0
- The Operational Search for MH370 (final report), Australian Transport Safety Bureau (2017): https://www.atsb.gov.au/mh370-search-overview
- How Did Inmarsat Deduce Possible Flight Paths for MH370?, SIAM News, Society for Industrial and Applied Mathematics (2014): https://www.siam.org/publications/siam-news/articles/how-did-inmarsat-deduce-possible-flight-paths-for-mh370/
- France says wing part found at Reunion is from MH370, Al Jazeera (2015): https://www.aljazeera.com/news/2015/9/4/france-says-wing-part-found-at-reunion-is-from-mh370
- Malaysia Airlines Flight 370 disappearance theories, Wikipedia (2024): https://en.wikipedia.org/wiki/Malaysia_Airlines_Flight_370_disappearance_theories
- MH370 search deal with Ocean Infinity extended for another year, Free Malaysia Today (2026): https://www.freemalaysiatoday.com/category/nation/2026/06/29/mh370-search-deal-with-ocean-infinity-extended-for-another-year

Rated by The Conspiratory, a neutral, sourced encyclopedia of conspiracy theories. Full page: https://theconspiratory.com/theory/mh370