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CITY IN THE SKY
Next on Episode 3
- Aired: 02/22/2017
- 00:30
- Expires:
- Rating: TV-PG

LEARN MORE
The Critical Runway Inspection That Happens in 45 Seconds
Inspectors get 45 seconds to ID and pick up fallen debris, across a whole runway. The smallest stray nut or chunk of rubber could be sucked into an engine and cause serious damage – potentially putting lives at risk. So it is imperative these eagle-eyed operatives don’t miss a thing.
Official Trailer
Explore a unique metropolis—a midair “city” composed of nearly a million people on flights that crisscross the world daily. Meet the hidden army working to keep the city aloft and uncover the exceptional engineering and technology that make it work.
Next on Episode 2
We take flight for granted, but on any journey a hidden army of people keep your plane safe. We explore just what it takes to keep the ‘city in the sky’ airborne and safe between take-off and landing. How has flying become safer than ever before?
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