Sleepless Schedules of Air Traffic Controllers May Be Putting Public Safety at Risk

New report raises concern over extreme fatigue and schedules that may be dangerous.
1:56 | 06/13/14

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Transcript for Sleepless Schedules of Air Traffic Controllers May Be Putting Public Safety at Risk
There's new concern about air traffic control -- a new report exposing their impossible schedules. Five ships crammed into four days extreme fatigue putting lives at risk and it comes. Three years after a call for a crack down. On their sleepless schedule so how is it still happening if she's David -- covers aviation for us on this new report tonight. After incidents like this. And a pilot unable to raise a -- to land because the controller was sleeping. Changes were ordered for the schedules of controllers three years ago. But tonight a prestigious scientific research group says it's not enough -- Fatigue is still a concern because -- scheduled to controllers like which gives them nearly a three day weekend. It's called the 211. Cramming five different shifts into four days. To swing shifts an eight hour break to -- shifts another eight hours off and then an overnight shift and it's that overnight shift that's the worry. Just messes your body up it's brutal on your -- -- residents. So it's pretty well known fact that that the physiological factors of fatigue come into play here. The controllers defend the schedule saying other studies say that with proper rest fatigue can actually be cut. A new report doesn't -- When it's so clearly defined in in terms of the scientific studies that say. That fatigue causes mistakes the kinds of mistakes controllers make or could potentially make with a -- we can't afford that. Budget cuts -- -- studies at the FAA have effectively been eliminated. The FAA revealed tonight it is making changes limiting the number of overnight shifts that can be worked in a row and other restrictions for controller schedules. To try -- reduce that fatigue and it is that fatigue Diana can lead to mistakes in the skies. Where there is little margin of air and a surprise it's still going on thank you so much David currently.

This transcript has been automatically generated and may not be 100% accurate.

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