October 10, 1933

A United Airlines Boeing 247 is destroyed by sabotage, the first proven case of air sabotage in commercial aviation history.


Chesterton, United States | United Airlines

Watercolor painting based depiction of A United Airlines Boeing 247 is destroyed by sabotage, the first proven case of air sabotage in commercial aviation history. (1933)

The United Airlines Boeing 247 Sabotage - October 10, 1933

On October 10, 1933, a United Airlines Boeing 247 was destroyed by an act of sabotage, marking the first proven case of air sabotage in commercial aviation history. This tragic event unfolded in the skies over Chesterton, Indiana, and had significant implications for aviation security and safety protocols.

Background

The Boeing 247 was a state-of-the-art aircraft for its time, representing a leap forward in commercial aviation with its all-metal construction and twin-engine design. United Airlines was one of the leading carriers utilizing this model, which was known for its speed and reliability.

The Incident

  • Flight Details: The ill-fated flight was en route from Cleveland, Ohio, to Chicago, Illinois, with scheduled stops along the way. It was carrying three crew members and four passengers.
  • Explosion: At approximately 9:15 PM, the aircraft exploded mid-air, scattering debris over a wide area near Chesterton, Indiana. All seven individuals on board were killed instantly.

Investigation

  • Initial Findings: Investigators quickly determined that the explosion was not due to mechanical failure. The nature of the wreckage suggested an explosive device had been placed on board.
  • Sabotage Confirmed: The investigation, led by the Bureau of Air Commerce, concluded that the explosion was caused by a nitroglycerin-based bomb. This marked the first confirmed case of sabotage in commercial aviation.

Aftermath and Impact

  • Security Measures: The incident prompted a reevaluation of security measures in the aviation industry. Although comprehensive security protocols as we know them today were not immediately implemented, the event highlighted vulnerabilities in air travel.
  • Unsolved Case: Despite extensive investigations, the perpetrator was never identified, and the motive behind the sabotage remains unknown. This unsolved case has intrigued historians and aviation enthusiasts for decades.

Broader Significance

The destruction of the United Airlines Boeing 247 in 1933 underscored the potential threats to commercial aviation and set a precedent for future safety and security measures. It served as a grim reminder of the vulnerabilities inherent in air travel and the need for vigilance in protecting passengers and crew.

This event is a pivotal moment in aviation history, illustrating the challenges of ensuring safety in an increasingly interconnected world.