Asked about the weather, he told Sky News: "There's some question about whether or not there were extreme wind gusts at about the time the flight was touching down, and whether or not that had any impact on the ability to control the landing.
The twin-engine Mitsubishi CRJ-900LR jet was coming to the end of a flight from Minneapolis in the US (around 700 miles away) when the landing at Toronto's Pearson Airport went catastrophically wrong.
Emergency responders reached the plane within a few minutes, Toronto Pearson Fire Chief Todd Aitken said, and the operation "went as planned".
Investigators are trying to establish exactly what happened when eighty people miraculously escaped after a Delta Air Lines jet dramatically flipped upside down as it landed in Toronto.
Weather conditions in the Canadian city, which has been blanketed by snow recently, saw winds gusting to 40mph when the flight attempted to land at around 2.15pm local time (7.15pm UK time) on Monday.
