Delta Airlines plane crash: Plane flips on landing, but all passengers survive; here's how

It's extremely rare for aeroplanes to flip while landing. Still, at times, severe weather, failure of landing gear, mechanical issues or even pilot errors can result in a flight landing upside down. While the exact reasons are unknown, a Delta Airlines flight crash-landed at Canada's Toronto Pearson International Airport on Monday upside down. The incident occurred after the region experienced a winter storm and snow-covered runways in the past few days. The aircraft also skidded sideways and landed super hard, with flyers going through a harrowing experience. Around 18 people experienced injuries. However, all the 80 passengers in the plane, including 76 flyers and four crew members, are safe, and there are no fatalities. Many are wondering how the passengers survived despite such an incident. Experts say these are the possible reasons: 

How the passengers survived
1) The flight involved in the incident is a Bombardier CRJ-900, which is apparently designed with smart safety features to protect flyers even during such severe crashes. Its wings and tail can detach even if the flight lands upside down. The small size of the flight is also a factor, say aviation experts.  
2) The flight crew were also extensively trained to handle such crisis situations. As per reports, despite the unusual position of the flight, the flight attendants could figure out the safest way to evacuate the passengers. They could also ensure that medical personnel attended to those with injuries quickly.
3) Certain channels reported that the seats on the flight were also strong enough to handle 16 times the force of gravity. This means they can stay in place even during tip-overs. 
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