![](https://flightsafety.org/wp-content/uploads/2022/06/torontopearson-Screenshot-2022-06-17-105548-e1655753777667.jpg)
Inaccurate transponder information and an unheard radio transmission factored in a 2020 runway incursion involving two airliners attempting takeoffs from Toronto Lester B. Pearson International Airport with a combined total of 446 passengers and crew, the Transportation Safety Board of Canada (TSB) says.