

In the Mojave Desert, crews prepare Roc, the world's largest airplane, for a tandem flight with a 747 by repairing its wing, inspecting landing gear and engines and training chase pilots for the mission.

Coast Guard aviators test themselves in a dangerous exercise to rescue casualties from a mountain; Scientists struggle to land on icy tundra; a bush pilot battles America's tallest peak and cargo crews fight to fit an entire bank on a single plane.

Investigators try to find the cause of two similar air crashes that happened nearly 12 years apart.

A false warning in the cockpit triggers a series of pilot errors, sending a commuter plane crashing by the runway of an Amsterdam airport.

Joining NTSB and military experts as they work together to uncover how a fighter jet could collide with a civilian flight.

Landing at one of the world's most challenging airports, a passenger plane comes in like a fighter jet and crashes, killing 51 of the 71 people aboard.

On Jan. 3, 2004, Flash Airlines Flight 604 banks to the right just after takeoff and crashes into the Red Sea, killing all 148 people on board.

After taking off from Taiwan, a China Airlines 747 suddenly disappears from radar and crashes, killing 225 people.