India, Feb. 18 -- There were "no crosswinds", and the runway was "dry" when the Delta Airlines Flight 4819 plane crashed and flipped at Toronto Pearson International Airport, per initial report.

However, John Nelson, a passenger on the flight, told CNN, "When we hit, it was super hard. The plane went sideways and I believe we skidded on our side and flipped over on our back," he said.

Nelson also recounted seeing a "big fireball" on the left side of the plane after it overturned. "I did notice the winds were super gusty. The snow had kinda blown over the runways. So coming it was routine but it was noticeable that the runways were in kind of a weird condition," he said.

"Thankfully, everybody was okay. We tried to get off as quickly as...