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The Human Factor: A Perfect Storm of Fatigue

Gemini Sparkle

Key Takeaways:

  • Fatigue is a critical and widespread issue affecting both pilots (experiencing "micro naps" and degraded function) and air traffic controllers, who are particularly impacted by demanding, rapidly rotating shift schedules that disrupt circadian rhythms.
  • The 2006 Lexington, Kentucky accident serves as a stark example of fatigue's impact, where both the flight crew and the controller exhibited impaired judgment and made critical errors, likely due to insufficient rest and challenging work schedules.
  • The article emphasizes that fatigue severely compromises decision-making, which is fundamental to aviation safety, urging aviation organizations to revise dangerous shift schedules and individuals to prioritize adequate sleep to prevent catastrophic failures.
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(April 2011) AFTER WRITING THREE articles on the subject of fatigue I figured I had pretty much covered that topic. Then I started receiving e-mails and phone calls from Flying readers, more than I have ever received before. It is obvious that fatigue is a critical issue for many people.

Paul Reeves described his own battle with micro naps that developed into micro sleep intrusions in which he was “still awake but under severely degraded motor function and a zombielike cognitive state — eyes open, brain off.” He said that he could not tell when this occurred, and could hear everything in real time, but he had dreamlike experiences that were close to hallucinations. Paul stopped driving and lost his medical for eight years while he got help with this problem. He pleaded with other pilots with sleep disorders to seek help, because he has “no doubt if I had continued on my own, you would not be reading this letter.”

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