Disappearance of Malaysia Airlines Flight MH370

MH370 was a scheduled overnight passenger service operated by a Boeing 777-200ER. Its route crossed multiple air-traffic-control regions, while civilian radar, military radar, aircraft messaging, and satellite systems recorded different parts of the flight. No single system continuously reported the aircraft's complete position.

After the aircraft passed its final Malaysian reporting point, its transponder stopped transmitting and normal voice contact ended. Military radar later showed an aircraft turning back across the Malay Peninsula. Automated satellite handshakes continued for roughly seven hours and became the principal evidence for a final flight path toward the southern Indian Ocean.

Search teams first worked in the South China Sea and nearby waters before radar and satellite analysis redirected the effort west and south. Aircraft, ships, satellites, sonar vehicles, oceanographers, and drift specialists surveyed remote ocean and seabed. A flaperon found on Réunion in 2015 and other pieces recovered around the western Indian Ocean were linked to MH370.

The disappearance exposed gaps between flight tracking, communications, national radar records, search coordination, and family communication. It accelerated work on global aircraft distress tracking and autonomous position reporting. The search also produced detailed seabed mapping and new methods for combining satellite, acoustic, debris, drift, and operational evidence.

MH370 demonstrates that a modern airliner can still become difficult to locate when tracking systems are fragmented and the likely endpoint is remote deep ocean. It is also an unresolved human loss for 239 families.

Investigation reports, radar reconstructions, satellite data, search maps, sonar surveys, and recovered debris form the surviving evidence. Malaysia extended its new seabed-search agreement through June 2027 after the 2025 and 2026 phases did not locate the wreckage. The principal site and flight recorders remain missing.

Investigators can reconstruct portions of the route, but they could not determine why the aircraft diverted or who controlled it during each phase. Proposed causes remain hypotheses without the main wreckage and recorders. The airport pin avoids presenting any modeled ocean endpoint as a confirmed location.