Two airliners collide in mid-air over Grand Canyon in Arizona, leaving 256 dead

Two planes, a Super Constellation and a DC-7, departed Los Angeles minutes apart and vanished in heavy thunderclouds over the Grand Canyon. The wreckage was found scattered near the Colorado and Little Colorado rivers, with theories suggesting a mid-air collision. The challenging terrain and turbulent winds complicated recovery efforts. An Air Force helicopter eventually accessed the site. The Civil Aeronautics Board plans a public hearing to investigate this tragic event, marking it as the worst commercial aviation disaster in history.

What were the two aircraft that left Los Angeles before disappearing?

• Boeing 747 and Airbus A320

• Super Constellation and DC-7

• Lockheed L-1011 and DC-10

• Cessna 172 and Piper PA-28

Where was the wreckage of the planes found?

• Near the confluence of the Colorado and Little Colorado rivers

• In the Mojave Desert

• In the Pacific Ocean

• On the Rocky Mountains

How many people were aboard the two planes?

• 150

• 100

• 200

• 128

What is one theory about the cause of the crash?

• Pilot error

• Engine failure

• Bird strike

• Mid-air collision

Which organization planned to hold a public hearing on the crash?

• International Air Transport Association

• Federal Aviation Administration

• Civil Aeronautics Board

• National Transportation Safety Board