Today in History

What happened today in history? Important events, births and deaths.

23 July 2025

Air Canada Flight 143 Emergency Landing

Historical Significance and Background

The emergency landing incident of Air Canada Flight 143 in 1983 holds an important place in aviation history. This incident took place in the city of Gimli, located in the Manitoba province of Canada. Like many events in Canada at that time, this incident should be considered within the historical context of the period. The main factor that led to the emergency landing of the Air Canada flight was a mistake made during the transition to the Metric system in Canada at that time.

Development of the Incident

Takeoff and Fuel Calculation Error

On July 23, 1983, Air Canada Flight 143 took off from Montreal to Edmonton. However, during the flight, it was noticed that the amount of fuel on the plane was miscalculated. This mistake stemmed from the confusion during the transition from the old British measurement system to the Metric system.

Emergency Landing and Gimli Glider

Facing a fuel problem, the aircraft had to make an emergency landing at Gimli Air Base. The pilots had to shut down the engines to land the plane at the planned airport. This incident came to be known as the "Gimli Glider" and became part of aviation history.

Consequences and Effects

Short-Term Effects

The emergency landing of Air Canada Flight 143 saved the lives of 69 passengers and 8 crew members on board. The short-term effects of the incident led to changes in aviation safety protocols.

Long-Term Results

The "Gimli Glider" incident brought more attention to fuel management in the aviation industry. In the long term, this incident led to developments in pilot training and fuel calculation procedures.

Historical Significance and Repercussions to Present Day

Impacts on the Modern World

The emergency landing of Air Canada Flight 143 is considered a significant turning point in aviation history. This incident increased the scrutiny of airline companies on fuel management.

Relevance Today

The "Gimli Glider" incident is used as a lesson for aviation students and professionals today. It is constantly emphasized to prevent the repetition of such mistakes.

Frequently Asked Questions


Historical Significance and Background


The emergency landing incident of Air Canada Flight 143 in 1983 holds an important place in aviation history. This incident took place in the city of Gimli, l...

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Air Canada Flight 143 Emergency Landing is a historically significant event that 1983 marked an important turning point in world history