Nearly ten years after the disappearance of Malaysia Airlines Flight MH370, the unsolved mystery remains a source of intrigue and agony. Despite the largest search operation in aviation history, the aircraft’s final resting place remains unknown, and the 239 souls aboard have yet to find justice. A former National Transportation Safety Board investigator, Alan Diehl, has come forward with a new theory that diverts from the southern trajectory search efforts have hitherto focused on.

Alan Diehl proposes that the missing Boeing 777 plunged into the Andaman Sea, northwest of Malaysia. This theory, if accurate, represents a significant departure from the previously presumed crash location near the southwest coast of Australia. Diehl’s theory is based on a possible reason for the pilot, Captain Zaharie Ahmad Shah, to express a political stance against the Malaysian government by covertly flying across Malaysia towards the American military base in Diego Garcia.

British aviation expert Simon Hardy, reflecting on the previous official search, proposed that the pilot committed a mass-murder-suicide, intentionally crashing the plane into the Indian Ocean’s Geelvinck Fracture Zone. Hardy’s assertions, backed by sophisticated flight simulators, coincide with the FBI’s earlier assessments, which have nonetheless failed to yield conclusive evidence of this act.

While the debate over Captain Zaharie’s intentions rages, theories range from him being suicidal to making a D.B. Cooper-style exit to meet a lover. Diehl suggests that the pilot, if seeking to disappear, would have chosen the Mariana Trench instead, indicating that vanishing was not the objective.

Malaysia Airlines Flight MH370’s journey began as a routine flight from Kuala Lumpur to Beijing on March 8, 2014. The last known words from the cockpit were the unremarkable, “Good night. Malaysian three-seven-zero.” Shortly afterward, the plane’s communication systems went dark, and it deviated sharply off course.

Diehl’s alternate route theory could change the focus of the search to the Andaman Sea, near Malaysia. This speculation joins the plea of many, including the victims’ families, for a new search effort. Malaysian officials, prompted by approaches from marine robotics company Ocean Infinity, recently announced their willingness to discuss a renewed search operation. Ocean Infinity has been working to narrow down the search area further, with optimism that their enhanced data analysis might yield better results.

To date, the debris discoveries in the western Indian Ocean are the sole physical evidence linked to MH370. They also confirm that the crash happened near the 7th arc, as any debris would drift northward initially before moving westward, carried by the prevailing ocean currents. These findings align with drift studies conducted by various independent researchers worldwide.

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