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Malaysia Airlines Flight 370 (MH370) disappearance

MH370 was a scheduled Malaysia Airlines flight that vanished in 2014 with 239 people aboard. The event prompted a large international search and remains an unresolved aviation mystery.

Author: Leandro Alegsa Creation date: November 13, 2022 Last updated: April 27, 2026

simple.wikipedia.org · CC BY-SA 3.0

Overview

Malaysia Airlines Flight 370 (MH370), also listed under a codeshare as China Southern Airlines Flight CZ748, disappeared on 8 March 2014 while en route from Kuala Lumpur to Beijing. The Boeing 777-200ER carried 227 passengers and 12 crew. The loss of the aircraft and all on board prompted one of the largest multinational search efforts in aviation history.

Aircraft, passengers and route

The aircraft was a twin‑engine long‑range airliner operating a routine international service for Malaysia Airlines. The declared flight path followed standard airways from Malaysia to China. Passengers represented many nationalities, and the manifest and cargo were examined in subsequent inquiries.

Disappearance and initial response

Shortly after takeoff, MH370 ceased routine radio contact with air traffic control and deviated from its planned track. Military radar and satellite data later indicated the aircraft altered course and continued flying for several hours. Authorities launched an immediate regional search that evolved into a vast, multi‑agency operation.

Search operations

Early searches focused on the South China Sea and Strait of Malacca.
Analysis of satellite handshake data redirected efforts to remote areas of the southern Indian Ocean.
A prolonged underwater search involved surface vessels, aircraft, and deep‑sea sonar to scan vast seafloor tracts.

Investigations and hypotheses

Official investigations examined flight data, radar and satellite records, maintenance and crew backgrounds, and possible security lapses. The most widely supported technical interpretation is that the aircraft left its airway and flew on for hours until fuel exhaustion, but the reason for the diversion—mechanical failure, human action, or other causes—remains unproven. Several theories have been proposed and debated publicly, but no single cause has been conclusively established.

Debris discoveries and aftermath

Over subsequent years, pieces of aircraft wreckage confirmed as coming from a Boeing 777 were found on shorelines around the western Indian Ocean, providing strong evidence the aircraft ended its flight in that ocean. Despite these finds, the main wreckage and flight recorders were not recovered during the official search, and the formal investigations closed without a definitive explanation. Private search ventures later sought to resume seabed exploration but did not produce decisive results.

Significance and ongoing legacy

The disappearance of MH370 triggered changes in tracking and communication expectations for commercial flights and led to calls for improved international protocols for real‑time tracking and recovery of flight data. It remains a focal point for aviation safety debates and a profoundly affecting unresolved tragedy for families of those on board.

Airplane

The Boeing 777-200ER aircraft, with aircraft registration 9M-MRO and serial number 28420, was equipped with two Rolls-Royce Trent 892 engines. It could seat 282 passengers (35 in business class, 247 in economy class) and had a range of approximately 12,800 km. The aircraft was delivered on 31 May 2002. It was therefore not particularly old at the time of the incident, being eleven years and nine months old. The left engine was newer than the right, and the engines had different fuel consumption. The registration certificate had to be replaced in 2006.

The aircraft underwent an A-check on 23 February 2014, during which no abnormalities were discovered. The aircraft has completed over 53,400 hours of operation and 7526 flights. However, on August 9, 2012, the aircraft had been involved in an aviation accident when it collided with the tail of another aircraft while taxiing at Shanghai-Pudong Airport, causing the right wing tip to break off.

Passengers and crew

Flight MH370: nationalities of passengers and crew
Nationality	Number
China People's Republic of China	152
Malaysia Malaysia1	50
Indonesia Indonesia	7
Australia Australia	6
India India	5
France France	4
United States United States	3
Iran Iran2	2
Canada Canada	2
New Zealand New Zealand	2
Ukraine Ukraine	2
Hong Kong Hong Kong3	1
Netherlands Netherlands	1
Taiwan Taiwan	1
Russia Russia	1
Total (15)	239
¹ of them 12 crew ² used stolen passports of an Italian and an Austrian ³ initially listed under Mainland China, then as a Hong Kong citizen

On board were twelve crew members and 227 passengers from 15 nations.

The twelve-member crew was composed exclusively of Malaysians. The 52-year-old flight captain, Zaharie Ahmad Shah, had been working for Malaysia Airlines since 1981 and was very experienced with over 18,000 flying hours. He was an examiner authorised to conduct flight simulator tests for pilots. First Officer Fariq Abdul Hamid, 27, had been with Malaysia Airlines since 2007 and had 2813 flight hours to his credit. This flight was the first flight for the first officer on a Boeing 777 after successfully completing his type retraining, thus the first flight without an additional co-pilot trainer. The captain was the first officer's trainer on this flight.

About two-thirds of the 227 passengers were nationals of the People's Republic of China. Among them were a group of 19 artists returning from an exhibition of their work in Kuala Lumpur and a well-known kung fu stuntman. Thirty-eight passengers were from Malaysia. The passengers also included 20 Chinese and Malaysian employees of Freescale Semiconductor.

The passengers also included two young Iranians who were travelling with stolen passports. They claimed the identity of an Austrian and an Italian, whose passports had previously been stolen in Thailand. The two people had connecting flights from Beijing to Amsterdam and from there onward flights to Frankfurt am Main and Copenhagen respectively. Also because the flights of the two had been booked in a Thai travel agency by a third party and paid for in cash, a terrorist background was initially considered. However, only a few days after the disappearance of the plane, the international police organization Interpol announced that it was apparently only a matter of illegal immigrants. Interpol expressed incomprehension that the two passengers were able to board the plane even though the passport thefts were recorded in the Stolen and Lost Travel Documents Database.

There were conflicting statements about whether other people with false passports were on board. The director of the Civil Aviation Authority said on 10 March that there were concerns about five passengers who had not flown. The Malaysian police chief, on the other hand, said the following day that all the passengers who had booked the flight had also flown and that they were looking into the possibility that a syndicate had provided the two stolen passports. A Chinese national whose passport number matched that of a passenger with a different name on the passenger list never boarded the plane, Chinese police said.

In late May 2016, it was first revealed that numerous Malaysian officials at the airport in Kuala Lumpur, possibly linked to a people smuggling syndicate, had repeatedly sabotaged the electronic passport verification system. The computers had also been hacked from the outside, it could be seen from cursors moving by themselves. These manipulations and system crashes, where passports were only stamped manually, had been going on since 2010. It was not until July 2014, in response to the security failures at MH370, that an electronic system was introduced to compare passport numbers with Interpol.