Air Canada jets damaged in ground collision at Toronto Pearson International Airport

Aviation professionals have noted that ground handling accidents are often linked to human error and operational shortcomings. Jason Mann, general manager of Western Jet Aviation, told Aviation Pros, “I have found that haste, inattention and inadequate training are some of the leading causes of ground damage. Factors include staffing, staffing talent, GSE capabilities, traffic… ramp design, weather, [and others].”

Data from the European Aviation Safety Agency (EASA) indicates that a ground towing accident occurs once every 5,000 commercial flights. Most incidents happen while ground support equipment is being attached or detached, not during towing itself. EASA reports that about 90% of such accidents are due to issues with ground support equipment or personnel, while only 10% are related to aircraft or aircrew actions.

Terry Yeomans, director of the IS-BAH Program, also spoke to Aviation Pros about the frequency and nature of these incidents: “About half the time a ground damage mishap occurs, it is because of someone not paying attention. The other half of the accidents are typically due to cutting corners.” He added that wingtips and leading edges are among the most commonly damaged areas, and that incidents often occur during ground service, towing, or pushback activities.

Both Air Canada jets will remain grounded for inspection and repairs. Even minor damage can be costly; repairing a winglet on a Boeing 737 MAX can cost up to $1 million, while fixing an A321’s horizontal stabilizer may be even more expensive. In addition to repair costs, the aircraft will be out of service until deemed safe to fly again, resulting in lost revenue for the airline. The use of composite materials in modern aircraft also requires thorough post-incident inspections to ensure structural integrity is maintained.