Mid-Air Plane Crash | Air Crash Investigation | National Geographic UK

50 seconds before impact,
the TCAS issues the first
aural warning when the oncoming plane is
less than ten miles away and closing fast.
Traffic.
Traffic.
Moments later,
the crew receives an instruction from Air Traffic Control.
Bravo Tango Charlie 2-9-3-7,
descend flight level, 3-5-0
Expedite.
I have crossing traffic.
Descend.
Followed by a different instruction from TCAS.
Climb.
The crew got conflicting instructions.
TCAS told the crew to climb.
The controller told them to descend.
It says climb.
The controller is guiding us down.
Descend? Really?
We're going to descend?
The captain follows the chief pilot's
command and puts the plane into a steep descent.
Bravo Tango Charlie 2-9-3-7,
Descend level 3-5-0.
Expedite descent.
Descend.
Level 3-5-0.
Bravo Tango Charlie 2-9-3-7.
Yes, we have traffic in position now at 3-6-0.
Moments from disaster,
TCAS issues a final command.
Increase climb. Increase climb. Increase climb.
But it comes too late.