The agency said in a statement on Tuesday evening it had recovered the cockpit voice recorder and flight data recorder, which were sent to a laboratory for examination.
“It is far too early to determine the cause of the accident,” the agency said.
Canada’s investigators will be assisted by the US Federal Aviation Administration and representatives from Delta and Mitsubishi, which purchased the CRJ line of planes from Bombardier in 2019.
Injuries sustained in the crash ranged from “minor to critical, but not life-threatening”, Flint said.
Delta said 21 passengers were transported to hospitals and so far 19 had been released.
Paramedic services told AFP on Monday that three people had been critically injured – a child, a man in his 60s and a woman in her 40s.
BLACK SMOKE
The flight with 76 passengers and four crew was landing in the afternoon in Canada’s largest city after a flight from Minneapolis in the US state of Minnesota.
The video posted to social media and verified by AFP was taken from the cockpit of another jetliner waiting on the tarmac.
It showed the plane coming in for a normal landing before slamming into the runway, then sliding forward in a roll to the right, with its wings sheared off before it stopped on its back.
Flames could be seen shooting out of the fuselage and black smoke billowing out.
“Oh no no no no no,” the pilot is heard saying in the video that was laced with expletives.
Rescue services responded, spraying water at the jet, whose underside was scraped and blackened.
Todd Aitken, the airport’s fire chief, said rescue teams saw isolated fires when they got to the scene.
“They were able to quickly knock down the spot fires”, and enter and search the plane, he told reporters Tuesday.
Most of the passengers had already “self-evacuated”, he added.
