How did all passengers survive when a Delta Air Lines jet flipped upside down in Toronto?

All 80 people on board survived thanks to advanced engineering and design features of the aircraft. According to Mike McCormick from Embry Riddle Aeronautical University, modern aircraft are specifically engineered to handle such rare incidents, with structural elements designed so wings and tail break away during a tip-over. Additionally, the aircraft's seats are constructed to withstand impacts up to 16 times the force of gravity, ensuring they remain secured even when the plane is inverted. The seat belt systems and overall structural design created a protective environment that helped safeguard passengers despite the severe nature of the accident.