Air traffic controller Ray Smid watched the yellow blips slide across his radar screen. The circles moved in silence, but Smid never forgot that they embodied real aircraft. It didn’t matter if the traffic was big or small. Lives were lost if the blips merged.
The Chicago Air Traffic Control Fire: Radio Silence
Key Takeaways:
- A deliberately set fire at Chicago Air Route Traffic Control Center (ZAU) in September 2014 disabled its critical Federal Telecommunications Infrastructure (FTI) system, forcing an unprecedented "ATC Zero" status.
- The incident grounded thousands of flights and created a 90,000-square-mile hole in the national airspace, requiring neighboring control centers and TRACONs to absorb ZAU's traffic.
- An extraordinary two-week recovery involved Chicago controllers deploying to 19 other facilities, and extensive collaboration across 36 ATC centers to manage traffic manually without automated data blocks.
- Through immense teamwork, round-the-clock technical work, and innovative operational adjustments, ZAU's FTI system was rebuilt and full air traffic control services were successfully restored by October 13.
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