What we know about the plane that crashed, flipped at Toronto's Pearson airport

A plane from Minneapolis crashed and flipped on its back when landing at Toronto Pearson International Airport on Monday afternoon. Here's what we know so far: 

Delta Air Lines Flight 4819 was landing at Pearson airport from Minneapolis just after 2 p.m. ET when the crash occurred.

All 76 passengers and four crew members managed to escape after the plane turned upside down, according to Deborah Flint, president and CEO of the Greater Toronto Airports Authority (GTAA). Of those on board, 22 were Canadian. 

The number of injured has fluctuated in reports from officials since the crash happened. By Monday evening, the GTAA said 17 people were injured, while Delta Air Lines said 18 people. It is unclear which number is accurate. 

Ornge, Ontario's air ambulance service, said a child was taken to Toronto's Hospital for Sick Children with critical injuries, while a man in his 60s and a woman in her 40s were also taken to Toronto hospitals with critical injuries.

But Flint did not confirm these injuries on Monday, saying the airport operator didn't know how many people were critically hurt.

The survival of everyone on board may have resulted from the durability of the plane's seats and the way the crash unfolded, said David McNair, a former Transportation Safety Board of Canada investigator.

"The rolling impact, although uncomfortable and unpleasant, is not as bad as having a direct impact somewhere," he said in an interview on CBC Radio's Metro Morning on Tuesday. 

At this time, officials have not provided details on what caused the crash, saying it is under investigation. The Transportation Safety Board of Canada is leading that probe, Pearson airport said in a post on X on Monday evening.

The U.S. National Transportation Safety Board also said on social media that it is assisting with the investigation. The GTAA said it will provide an update to media at some point on Tuesday. 

Audio recording from Pearson's air traffic control tower shows the flight was cleared to land shortly after 2 p.m. ET and that the tower warned the pilots of a possible air flow "bump" in the glide path from an aircraft in front of it, according to a report from The Canadian Press.

Todd Aitken, the GTAA's fire chief, told reporters on Monday night that the runway conditions were dry and there were no crosswinds.

But McNair said the instructions given to pilots just before the landing indicated the crosswind was up to 17 knots. A notice to airmen also mentioned there was snow on the runway.