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Fatigue risk

What are you carrying into this duty period?

Fatigue is rarely one thing. It is a short night on top of another one, a long duty that runs through the hours your body expects to be asleep, and a workload that leaves no room to catch up. We built a 12 question screen that asks about each of those and hands back what you described, so the factors stacking up are visible before the duty rather than in a report afterwards.

Two answers that skip the questions

If either of these is true right now, there is nothing a score can tell you that you do not already know. They are not questions below, and they are not points in a total, because a number that averaged them away would be the most dangerous thing on this page.

Nodding off, or unable to stay alertMicrosleeps, repeated lapses, losing the thread of what you were doing, or performance you would not accept from somebody else.Stop here
Illness, pain, or medication that could affect alertnessIncluding anything over the counter, and anything you have not taken before a duty period previously.Stop here

The next step for either is a fatigue report and a conversation with whoever can change the duty, not a questionnaire.

What you receive from the screening

Not a verdict. Twelve questions across sleep and recovery, duty and timing, and workload and condition, scored out of 24, landing in one of three descriptions of what you are carrying. Each one ends with what tends to follow from it and where to put it on record.

0 to 6
Few factorsLittle in what you described is stacking against you
024
7 to 13
Several factorsSeveral things stacking up rather than one standing out
024
14 to 24
Many factorsMost of what drives fatigue is present at once
024

This is a screening aid. It is not a fitness for duty decision.

It describes what you told it and nothing else. Anybody may call fatigued whatever this screen shows, and a low result is never a reason to question a fatigue report. If the two disagree, the person is right and the questionnaire is a questionnaire.

Your turn

Let’s get started

Answer for the duty period you are about to start or are in the middle of, not for a normal week. It takes about four minutes, and it ends with the factors you described and what tends to follow from them.

0 of 12 answered0%

Section 1 of 3

Sleep and recovery

How much sleep have you had in the last 24 hours?

And in the 24 hours before that?

Two nights, because one short night on top of another is the pattern that builds a deficit. A single short night after a full one reads differently.

How restful was that sleep?

By the end of this duty period, how long will you have been continuously awake?

Section 2 of 3

Duty and timing

How long is the duty period, counting what you have already done today?

How many flight legs does it cover?

One leg is a single takeoff to landing, so a day of four short hops is four. Each one adds a takeoff and a landing, which is where the workload sits.

How much of the duty falls between 02:00 and 06:00, by the local time you are acclimated to?

The window of circadian low, when alertness is hardest to hold whatever the sleep behind it. What matters is the body clock you are on, not the clock on the wall where you landed.

How many time zones have you crossed in the past 72 hours?

Section 3 of 3

Workload and condition

What does the workload look like?

What rest opportunity have you had, or will you get, inside the duty period?

How have meals and fluids gone today?

How alert do you feel right now?

A self rating on the scale crews already use, from fully alert at one to completely exhausted at seven. How you feel is evidence, not the opposite of it.

12 questions still to answer.

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