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The Worst Plane Crash That Never Happened: Air Canada 759

The Worst Plane Crash That Never Happened: Air Canada 759

BY ADNAN SHAHEED January 26, 2024 0 COMMENTS

On July 7, 2017, Air Canada Flight 759, an Airbus A320, was on the verge of a catastrophic incident at San Francisco International Airport (SFO). The flight, which originated from Toronto Pearson International Airport, experienced a critical misalignment during its approach, leading to regulatory reforms and changes in airline procedures.

 

The Air Canada aircraft involved in the incident, with registration C-FKCK | Photo: Flickr

 

The Near Catastrophe

 

At 11:46 p.m. local time, the aircraft, carrying 135 passengers and 5 crew members, was cleared to land on Runway 28R. However, confusion ensued when the flight crew mistook the parallel Taxiway C for the designated runway. The pilots acknowledged that they had overlooked the closure of Runway 28L, leading them to line up for landing on the taxiway.

 



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Despite runways and taxiways being lit with different colors and intensities, the pilots failed to differentiate, relying on a visual approach instead of the Instrument Landing System (ILS). This critical error placed the aircraft on a collision course with four fully loaded and fueled passenger planes queued on Taxiway C for takeoff.

 

A United Airlines Boeing 737-900ER (with registration N62895) that was waiting for takeoff at the same time | Photo: Flickr

 

At 11:55:46 p.m., as the aircraft approached the runway threshold, the AC759 pilot sought confirmation from the tower. The air traffic controller responded, "There's no one on 28R but you," without realizing the imminent danger. The plane crew on Taxiway C activated their landing lights to alert AC759, and the situation escalated when a pilot waiting for takeoff queried, "Where is this guy going? He's on the taxiway."

 

The air traffic controller urgently ordered AC759 to abort the landing at 11:56:10 p.m. The aircraft had already descended perilously close to the waiting planes. The flight initiated a go-around and landed safely on a subsequent attempt.

 

A Philippine Airlines A340-300 (with registration RP-C3441) that was waiting for takeoff at the same time | Photo: Flickr

 

Investigation and Regulatory Response

 

The National Transportation Safety Board (NTSB) led the investigation, determining the crew's confusion of the runway with the taxiway as the probable cause. Contributing factors included the failure to use the ILS and pilot fatigue, with the captain and first officer having minimal rest, violating U.S. pilot fatigue rules.

 



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The incident prompted regulatory scrutiny and Federal Aviation Administration (FAA) recommendations. Six recommendations were issued, addressing issues such as unusual manual frequency input, clear representation of information on aeronautical charts, and enhanced alerts for aircraft not aligned with runways.

 

The FAA modifications in August 2017 forbade visual approaches at night "when an adjacent parallel runway is closed." Instead, instrument approaches, either ILS or satellite-based, were mandated. Additionally, two air traffic controllers were required in the control tower "until the late-night arrival rush is over."

 

Photo: Thomas Westlake | AeroXplorer

 

Air Canada's Response and Aftermath

 

Air Canada undertook corrective measures following the incident. The airline simplified its SFO approach charts, incorporated SFO-specific training in simulators, and planned to retrofit new aircraft with dual head-up displays to enhance situational awareness.

 

As of December 2023, Air Canada no longer uses Flight Number 759 for its Toronto to San Francisco route. Instead, four different flight numbers are assigned to different times of the day, optimizing aircraft types for specific flights.

 

Photo: Rynjil Harwood | AeroXplorer

 

The incident underscored the importance of adherence to instrument procedures, pilot rest regulations, and effective communication between air traffic control and flight crews. The NTSB's final report, released in September 2018, prompted broader discussions on aviation safety, incident reporting, and the need for continuous improvement in air travel protocols.

 

The Air Canada Flight 759 incident is a stark reminder of the potential consequences when human errors align with systemic failures. The collaboration between regulatory bodies, airlines, and aviation stakeholders becomes paramount in preventing such near catastrophes. The incident led to regulatory reforms and spurred a collective commitment to enhancing safety measures in the aviation industry.

 



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Adnan Shaheed
Hi! I'm an aspiring engineering student with an interest in aviation. I really took an interest in Aeroxplorer because it lets me do what I love: talk about planes to people.

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STORIES Air Canada A320 San Francisco SFO Near-Miss Investigation Safety FAA

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