On board United Airlines Flight 204 all 128 passengers and crew aboard the two airliners are dead. At the time, it is the worst accident in the history of commercial aviation.

Can you work out why this was declared the worst accident in history?

From Season 12 Episode 6 "Grand Canyon Disaster": Just after 9:00 AM United Airlines Flight 718 takes off from Los Angeles International Airport with 53 passengers on board. With only 117 commercial flights in the entire state of California each day, air travel is a luxury enjoyed by the wealthy few. After liftoff, the crew is required to fly an assigned flight path through the airspace around Los Angeles. After that, they are free to fly wherever they want, as long as they report crossing a number of waypoints along their route. In 1956, there is no radar coverage to keep track of airliners. These reports will allow Air Traffic Controllers to track the plane’s movements.

Welcome to the OFFICIAL Mayday: Air Disaster YouTube Channel.

Mayday: Air Disaster is a dramatic nonfiction series that investigates highprofile air disasters to uncover how and why they happened. Mayday: Air Disaster follows survivors, family members of crash victims and transportation safety investigators as they piece together the evidence of the causes of major accidents. So climb into the cockpit for an experience you won’t soon forget.

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