Witness the doomed flight of a West Air Sweden jet and see how the failure of a single instrument led to catastrophe.

Most passengers relax after their plane touches down, but when Uni Air Flight 873 landed, that's when the terror began.

Follow the investigation to see how a DC-9 ended up on the wrong runway and in the path of an oncoming 727.

Landing on a Caribbean island in a severe tropical storm, a Colombian airliner crashes short of the runway. Investigators need to find out why.

Investigators are stumped when a turboprop slams into an Argentine desert, and it's a microscopic filament that provides the first tangible clue.

A helicopter carrying offshore oil workers crashes into the ocean off the coast of Newfoundland and a far-reaching investigation reveals a fatal flaw.

Investigators are stumped when a turboprop crashes into an Indonesian mountaintop.

When an African airliner mysteriously crashes, Namibian investigators rule out a host of possible causes before reaching a chilling conclusion.

A brand-new 737 falls from the sky over West Africa during a major storm, but investigators eventually discover weather had nothing to do with it.